MASSMUTUAL INSTITUTIONAL FUNDS
485BPOS, 1997-11-28
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<PAGE>
 
     
As filed with the Securities and Exchange Commission on November 26, 1997      

                        Securities Act File No. 33-73824
                    Investment Company Act File No. 811-8274
        ================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
    
                                    FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933              [_]
    PRE-EFFECTIVE-AMENDMENT NO.                                      [_]
    POST-EFFECTIVE-AMENDMENT NO. 6                                    
                                                                     [X]      
                                                                      
                                                                               
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940      [_]
    AMENDMENT NO. 8                                                   
                                                                     [X]      
                                                                      

                         MASSMUTUAL INSTITUTIONAL FUNDS
                         ------------------------------
               (Exact Name of Registrant as Specified in Charter)

                                1295 State Street
                        Springfield, Massachusetts 01111
                        --------------------------------
               (Address of Principal Executive Offices) (Zip Code)

       Registrant's Telephone Number, including Area Code: (413) 788-8411
                                                           --------------
                                 Stephen L. Kuhn
                         MassMutual Institutional Funds
                                1295 State Street
                              Springfield, MA 01111
                     (Name and Address of Agent for Service)

                                   Copies to:
                             J. B. Kittredge Esq.
                                  Ropes & Gray
                             One International Place
                                Boston, MA 02110

Approximate date of commencement of proposed sale to the public: As soon as
practical after the effective date of the Registration Statement.

It is proposed that this filing will become effective (check appropriate box)

[_] immediately upon filing pursuant to paragraph (b) 
    
[X] on December 1, 1997 pursuant to paragraph (b)      
[_] 60 days after filing pursuant to paragraph (a)(1) 
[_] on (date) pursuant to paragraph (a)(1) 
[_] 75 days after filing pursuant to paragraph (a)(2) 
[_] on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

[_] this post-effective amendment designates a new effective date for a 
previously filed post-effective amendment. 


                       DECLARATION PURSUANT TO RULE 24F-2

    Pursuant to Rule 24f-2 under the Investment Company Act of 1940, the
Registrant hereby declares that an indefinite number or amount of its shares
have been registered under the Securities Act of 1933. Registrant's Rule 24f-2
Notice on Form 24F-2 for the fiscal year ending December 31, 1996 was filed on
February 25, 1997.
    
    The Index to Exhibits is located at Page 1 of Part C of Item 24(b)     
    
    To: The Securities and Exchange Commission      
    
    The Registrant submits this Post-Effective Amendment No. 6 to its
Registration Statement under the Securities Act of 1933 (Registration No. 33-
73824) and this Amendment No. 8 to its Registration Statement under the
Investment Company Act of 1940. This Post-Effective Amendment relates solely to
the MassMutual Prime Fund, MassMutual Short-Term Bond Fund, MassMutual Core Bond
Fund, Massmutual Balanced Fund, MassMutual Value Equity Fund, MassMutual Small
Cap Value Equity Fund and MassMutual International Equity Fund. No information
relating to any other series of Registrant is amended or superseded hereby.    

<PAGE>
 
                         MASSMUTUAL INSTITUTIONAL FUNDS

                                    FORM N-1A

                              CROSS REFERENCE SHEET

<TABLE>
<CAPTION>

Part A  
Item No.                                            Prospectus Heading
- --------                                            ------------------
<S>       <C>                                       <C>  
                                                          
1         Cover Page                                Cover Page
                                              
2         Synopsis                                  Expense Information
                                              
3         Condensed Financial Information           Financial Highlights; Line 
                                                    of Credit
                                              
4         General Description of Registrant         The Trust; Investment Practices of the Funds and Related Risks; Investment
                                                    Objectives and Policies of the Funds; Investment Practices of the Funds and
                                                    Related Risks; Description of Shares

5         Management of the Fund                    The Trust; Control Person and Pricipal Holder of Securities Investment Manager
                                                    And Sub-Advisers; Distributor, Transfer Agent, Shareholder Servicing Agent,
                                                    Custodian; Expense Information
                                              
6         Capital Stock and Other Securities        The Trust; Distributions And Taxation; Description Of Shares
                                              
7         Purchase of Securities Being Offered      How To Purchase, Exchange, and Redeem Shares; Distributor, Transfer
                                                    Agent, Shareholder Servicing Agent, Custodian; How Fund Shares Are
                                                    Priced
                                              
8         Redemption or Repurchase                  How to Purchase, Exchange, And Redeem Shares
                                              
9         Pending Legal Proceedings                 Inapplicable
</TABLE>

                                      iii
<PAGE>
 
<TABLE>
<CAPTION>

Part B                                                       Heading in Statement
Item No.                                                     of Additional Information
- --------                                                     -------------------------
<S>      <C>                                                 <C>  
10       Cover Page                                          Cover Page

11       Table of Contents                                   Table of Contents

12       General Information and History                     General Information

13       Investment Objectives and Policies                  Additional Investment Policies; Fundamental Investment
                                                             Restrictions; Non-Fundamental Investment Restrictions

14       Management of the Fund                              Management of the Trust; Compensation; Compensation Table

15       Control Persons and Principal Holders of            Control Persons and Principal Holders of Securities
         Securities

16       Investment Advisory and Other Services              Investment Manager And Sub-Advisers; The Distributor; Custodian,
                                                             Dividend Agent And Transfer Agent

17       Brokerage Allocation and Other Practices            Portfolio Transactions And Brokerage

18       Capital Stock and Other Securities                  Management Of The Trust; Description Of Shares

19       Purchase, Redemption and Pricing of Securities      Shareholder Investment Account; Redemption Of Shares; Valuation
         Being Offered                                       Of Portfolio Securities

20       Tax Status                                          Taxation

21       Underwriters                                        The Distributor

22       Calculation of Performance Data                     Investment Performance

23       Financial Statements                                Financial Statements

</TABLE>

                                       iv
<PAGE>
 
Part C
- ------

     Information required to be included in Part C is set forth under the
appropriate item, so numbered, in Part C to this Registration Statement.

                                       v
<PAGE>
 
     
                             SUBJECT TO COMPLETION
 
                 PRELIMINARY PROSPECTUS DATED OCTOBER 1, 1997     

    
                        MASSMUTUAL INSTITUTIONAL FUNDS     
                               1295 STATE STREET 
                       SPRINGFIELD, MASSACHUSETTS 01111 
                                (413) 788-8411 
    
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Information contained herein pertaining to the Class A and Class Y Shares (the
"Pending Securities") is subject to completion or amendment. A registration
statement relating to, amongst other things, the Pending Securities has been
filed with the Securities and Exchange Commission. These Pending Securities may
not be sold nor may any offers to buy be accepted prior to the time the
registration statement becomes effective. This Prospecuts shall not constitute
an offer to sell or the solicitation of an offer to buy the Pending Securities
nor shall there be any sale of the Pending Securities in any State in which such
offer, solicitation, or sale would be unlawful prior to registration or
qualification under the securitie laws of any such State.     
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

MassMutual Institutional Funds (the "Trust") is a professionally managed
investment company designed to offer investors both the opportunity to pursue
long-term investment goals and the flexibility to respond to changes in their
investment objectives and economic and market conditions. This Prospectus
describes seven separate, diversified series of shares of the Trust (the
"Funds"). Each Fund has a distinct investment objective.

     (1) MassMutual Prime Fund-Seeks to maximize current income to the extent
         consistent with liquidity and the preservation of capital by investing
         in a diversified portfolio of money market instruments. The Prime Fund
         is not a money market fund.

     (2) MassMutual Short-Term Bond Fund-Seeks to achieve a high total rate of
         return primarily from current income while minimizing fluctuations in
         capital values by investing primarily in a diversified portfolio of
         short-term investment grade fixed income securities.

     (3) MassMutual Core Bond Fund-Seeks to achieve a high total rate of return
         consistent with prudent investment risk and the preservation of capital
         by investing primarily in a diversified portfolio of investment grade
         fixed income securities.

     (4) MassMutual Balanced Fund-Seeks to achieve a high total rate of return
         over an extended period of time consistent with the preservation of
         capital values by investing in a diversified portfolio of equity
         securities, fixed income securities and money market instruments.

     (5) MassMutual Value Equity Fund-Seeks to achieve long-term growth of
         capital and income by investing primarily in a diversified portfolio of
         equity securities of larger well-established companies.

     (6) MassMutual Small Cap Value Equity Fund-Seeks to achieve long-term 
         growth of capital and income by investing primarily in a diversified
         portfolio of equity securities of smaller companies.
    
     (7) MassMutual International Equity Fund-Seeks to achieve a high total rate
         of return over the long term by investing in a diversified portfolio of
         foreign and domestic equity securities.     

This Prospectus sets forth concisely the information about the Funds and the
Trust that a prospective investor should know before investing. Please read it
carefully and retain it for future reference. Certain additional information
about the Funds and the Trust is contained in a Statement of Additional
Information dated November [ ], 1997, which has been filed with the Securities
and Exchange Commission and is incorporated herein by reference. This additional
information is available without charge by writing to the Secretary, MassMutual
Institutional Funds, 1295 State Street, Springfield, MA 01111.
    
Massachusetts Mutual Life Insurance Company ("MassMutual" or the "Adviser") is
the investment manager to each of the Funds. David L. Babson and Company, Inc.
("Babson") is the investment sub-adviser to the Value Equity Fund, the Small Cap
Value Equity Fund and the Value Equity Sector of the Balanced Fund. HarbourView
Asset Management Corporation ("HarbourView") is the investment sub-adviser to
the International Equity Fund. Babson and HarbourView are both indirect
subsidiaries of the Adviser and are hereinafter collectively referred to as the
"Sub-Adviser."     

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                                  DISTRIBUTOR
                      OPPENHEIMERFUNDS DISTRIBUTOR, INC.
                            Two World Trade Center
                           New York, New York 10048
    
PROSPECTUS November [ ], 1997.     
<PAGE>
 
<TABLE>    
<CAPTION>

Table Of Contents
                                                                           Page
<S>                                                                        <C>  
Expense Information........................................................   3
Financial Highlights.......................................................   7
Line of Credit.............................................................  13
The Trust..................................................................  14
Investment Objectives And Policies Of The Funds............................  14
Investment Practices Of The Funds And Related Risks........................  17
How To Purchase, Exchange, And Redeem Shares...............................  19
Investment Manager And Sub-Advisers........................................  22
Distributor, Transfer Agent, Shareholder Servicing Agent, Custodian........  23
Control Person And Principal Holder Of Securities..........................  24
Description Of Shares......................................................  24
How Fund Shares Are Priced.................................................  24
Distributions And Taxation.................................................  24
Investment Performance.....................................................  25
Glossary...................................................................  27
</TABLE>     


                                       2
<PAGE>
 
Expense Information
    
The Expense Information in these tables provides estimates of how much it will
cost to operate the Funds for a year.     
    
- --------------------------------------------------------------------------------
                                    CLASS A
- --------------------------------------------------------------------------------
     
<TABLE>     
<CAPTION> 
                                                                                                       SMALL CAP
                                                       SHORT-TERM    CORE                   VALUE        VALUE     INTERNATIONAL
                                             PRIME        BOND       BOND      BALANCED     EQUITY       EQUITY       EQUITY
                                              FUND        FUND       FUND        FUND        FUND         FUND         FUND
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                          <C>       <C>           <C>       <C>          <C>        <C>         <C>  
SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Charge Imposed
 on Purchases.......................         None        None        None        None        None         None          None
Maximum Sales Charge Imposed
 on Reinvested Dividends............         None        None        None        None        None         None          None
Maximum Deferred Sales Charge /(1)/.         1.00%       1.00%       1.00%       1.00%       1.00%        1.00%         1.00%
Exchange Fee........................         None        None        None        None        None         None          None
Redemption Fee......................         None        None        None        None        None         None          None

ANNUAL OPERATING EXPENSES
(As a percentage of average.net assets)
Management Fees.....................          .45%        .45%        .45%        .45%        .45%         .55%          .85%
Rule 12b-1 Fees.....................          .25%        .25%        .25%        .25%        .25%         .25%          .25%
Other Expenses......................          .50%        .50%        .50%        .50%        .50%         .50%          .60%
=================================================================================================================================
TOTAL OPERATING EXPENSES                     1.20%       1.20%       1.20%       1.20%       1.20%        1.30%         1.70%
=================================================================================================================================
</TABLE>     
    
(1) You may have to pay a contingent deferred sales charge of up to 1% if you
    sell any Class A shares within 12 months of the date on which you first
    purchased Class A shares. See "How to Purchase, Exchange, and Redeem
    Shares," below, for more information on the contingent deferred sales
    charge.    
    
EXAMPLES:  An investor would pay the following expenses on an investment of
           $1,000 in the Fund assuming: (a) a 5% annual return and (b)
           redemption at the end of each time period.     

<TABLE>    
<CAPTION> 
                                                                                                      SMALL CAP
                                            SHORT-TERM       CORE                        VALUE         VALUE         INTERNATIONAL
                                PRIME          BOND          BOND        BALANCED        EQUITY        EQUITY           EQUITY
                                 FUND          FUND          FUND          FUND           FUND          FUND             FUND
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                            <C>           <C>            <C>          <C>             <C>          <C>            <C>
 1 Year                         $22.61         $22.61       $22.61        $22.61         $22.61        $23.62           $27.62 
- --------------------------------------------------------------------------------------------------------------------------------- 
- ---------------------------------------------------------------------------------------------------------------------------------
 3 Years                        $38.11         $38.11       $38.11        $38.11         $38.11        $41.23           $53.60 
- ---------------------------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------------------------
 5 Years                        $65.96         $65.96       $65.96        $65.96         $65.96        $71.28           $92.28 
- ---------------------------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------------------------
 10 Years                      $145.25        $145.25      $145.25       $145.25        $145.25       $156.53          $200.48 
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>     


                                       3
<PAGE>
 
     
An investor would pay the following expenses on the same investment, assuming no
redemption:     

<TABLE>    
<CAPTION>
                                                                              SMALL CAP                   
                              SHORT-TERM    CORE                    VALUE       VALUE    INTERNATIONAL    
                     PRIME       BOND       BOND        BALANCED    EQUITY      EQUITY       EQUITY        
                     FUND        FUND       FUND          FUND       FUND        FUND         FUND         
- -------------------------------------------------------------------------------------------------------
<S>                 <C>       <C>          <C>          <C>        <C>        <C>        <C>      
 1 Year             $12.24      $12.24     $12.24       $12.24     $12.24       $13.25       $17.30  
- -------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------
 3 Years            $38.11      $38.11     $38.11       $38.11     $38.11       $41.23       $53.60  
- -------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------
 5 Years            $65.96      $65.96     $65.96       $65.96     $65.96       $71.28       $92.28  
- -------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------
 10 Years          $145.25     $145.25    $145.25      $145.25    $145.25      $156.53      $200.48  
- -------------------------------------------------------------------------------------------------------
</TABLE>     
    
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF FUTURE RETURNS OR
EXPENSES.  ACTUAL RETURNS AND EXPENSES MAY BE GREATER OR LESS THAN THOSE 
SHOWN.     


                                       4
<PAGE>
 
    
                                    CLASS Y     
<TABLE>     
<CAPTION> 
 
                                                                                                    SMALL CAP
                                                       SHORT-TERM    CORE                  VALUE      VALUE     INTERNATIONAL
                                             PRIME        BOND       BOND     BALANCED    EQUITY      EQUITY        EQUITY
                                              FUND        FUND       FUND       FUND       FUND        FUND          FUND

- --------------------------------------------------------------------------------------------------------------------------------- 
<S>                                        <C>         <C>         <C>        <C>        <C>        <C>         <C>
SHAREHOLDER TRANSACTION EXPENSES
(As a percentage of offering price)
Maximum Sales Charge
 Imposed on Purchases.................          None        None       None       None       None        None            None
Maximum Sales Charges Imposed
 on Reinvested Dividends..............          None        None       None       None       None        None            None
Maximum Deferred Sales Charge.........          None        None       None       None       None        None            None
Exchange Fee..........................          None        None       None       None       None        None            None
Redemption Fee........................          None        None       None       None       None        None            None

ANNUAL OPERATING EXPENSES
(As a percentage of average net assets)
Management Fees.......................          .45%        .45%       .45%       .45%       .45%        .55%            .85%
Rule 12b-1 Fees.......................          None        None       None       None       None        None            None
Other Expenses........................          .30%        .30%       .30%       .30%       .30%        .30%            .40%
================================================================================================================================= 
TOTAL OPERATING EXPENSES/(1)/                   .75%        .75%       .75%       .75%       .75%        .85%           1.25%
================================================================================================================================= 
</TABLE>     
    
(1) Class Y Investors may also be subject to charges imposed in their
    administrative services or other agreement with the Adviser.  See "How to
    Purchase, Exchange and Redeem Shares-Features and Eligibility Requirements
    of each Class."     
    
EXAMPLE:  An investor would pay the following expenses on an investment of
          $1,000 in the Fund assuming: (a) a 5% annual return and (b) redemption
          at the end of each time period.     

<TABLE>    
<CAPTION> 
                                                                                                     SMALL CAP
                                          SHORT-TERM       CORE                         VALUE          VALUE         INTERNATIONAL
                                PRIME        BOND          BOND         BALANCED        EQUITY         EQUITY           EQUITY
                                FUND         FUND          FUND           FUND           FUND           FUND             FUND

- ------------------------------------------------------------------------------------------------------------------------------------
<S>                          <C>          <C>          <C>            <C>            <C>            <C>            <C>
 1 Year                          $ 7.66        $ 7.66         $7.66          $7.66          $7.66       $  8.68            $ 12.74  
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
 3 Years                         $23.97        $23.97        $23.97         $23.97         $23.97       $ 27.12            $ 39.66  
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
 5 Years                         $41.68        $41.68        $41.68         $41.68         $41.68       $ 47.12            $ 68.60  
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
 10 Years                        $92.92        $92.92        $92.92         $92.92         $92.92       $104.75            $150.86  
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>     
    
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF FUTURE RETURNS OR
EXPENSES.  ACTUAL RETURNS AND EXPENSES MAY BE GREATER OR LESS THAN THOSE 
SHOWN.     

                                       5
<PAGE>
 
    
                              CLASS S/(1)/      
<TABLE>    
<CAPTION>
 
                                                                                  SMALL CAP
                                                  SHORT-TERM   CORE                 VALUE       VALUE      INTERNATIONAL
                                           PRIME     BOND      BOND     BALANCED    EQUITY      EQUITY        EQUITY
                                            FUND     FUND      FUND       FUND       FUND        FUND          FUND
- ---------------------------------------------------------------------------------------------------------------------------
<S>                                        <C>    <C>        <C>       <C>       <C>         <C>         <C> 
SHAREHOLDER TRANSACTION EXPENSES                                                            
(As a percentage of offering price)                                                         
Maximum Sales Charge
 Imposed on Purchases.............          None     None      None         None      None         None            None
 and Reinvested Dividends.........          None     None      None         None      None         None            None
Maximum Sales Charges Imposed
 on Reinvested Dividends..........          None     None      None         None      None         None            None
Maximum Deferred Sales Charge.....          None     None      None         None      None         None            None
Exchange Fee......................          None     None      None         None      None         None            None
Redemption Fee....................          None     None      None         None      None         None            None

ANNUAL OPERATING EXPENSES
(As a percentage of average net assets)
Management Fees...................          .45%     .45%      .45%         .45%      .45%         .55%            .85%
Rule 12b1 Fees....................          None     None      None         None      None         None            None
Other Expenses....................         .0954%%  .1010%    .0945%       .0925%    .0902%       .0932%          .2022%
==================================================================================================================================

TOTAL OPERATING EXPENSES/(2)(3)/           .5454%%  .5510%    .5445%       .5425%    .5402%       .6432%         1.0522%
================================================================================================================================== 
</TABLE>     
    
(1) Class S shares were previously designated as Class 4 shares.     
    
(2) There are no current client expenses for separate investment accounts, but
    employee benefit plans that invest in the separate investment accounts are
    subject to charges imposed in their group annuity contracts, as set forth in
    their respective Plan Documents.  See the Glossary for a definition of Plan
    Documents.     
    
(3) The expenses in the above table are based on expenses for the fiscal year
    ended December 31, 1996 but without giving effect to MassMutual's voluntary
    undertaking to waive a portion of its management fee which terminated May 1,
    1997, and adjusted for new fund custody and fund administrative fees.     
    
EXAMPLE:  An investor would pay the following expenses on an investment of
          $1,000 in the Fund assuming: (a) a 5% annual return and (b) redemption
          at the end of each time period.     

<TABLE>    
<CAPTION> 
                                                                                                      SMALL CAP
                                             SHORT-TERM        CORE                       VALUE        VALUE        INTERNATIONAL
                                PRIME           BOND           BOND        BALANCED       EQUITY       EQUITY           EQUITY
                                 FUND           FUND           FUND          FUND          FUND         FUND             FUND
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                          <C>           <C>              <C>          <C>            <C>          <C>          <C>
 1 Year                        $ 5.58          $ 5.63         $ 5.57        $ 5.55        $ 5.52       $ 6.57          $ 10.74
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
 3 Years                       $17.48          $17.66         $17.45        $17.39        $17.32       $20.59          $ 33.48
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
 5 Years                       $30.46          $30.77         $30.41        $30.30        $30.18       $35.84          $ 58.03
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
 10 Years                      $68.30          $68.98         $68.19        $67.95        $67.67       $80.13          $128.31
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>     
    
THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF FUTURE RETURNS OR
EXPENSES.  ACTUAL RETURNS AND EXPENSES MAY BE GREATER OR LESS THAN THOSE 
SHOWN.     

                                       6
<PAGE>
 
     
FINANCIAL HIGHLIGHTS

The information in the following tables applies only to the Class S shares of
the Funds (which were previously designated Class 4 shares.)  Similar
information does not exist for the Class A and Class Y shares, which were not
outstanding during the periods covered by the financial statements.

The financial highlights for each of the periods through December 31, 1996, have
been derived from the Funds' financial statements, which have been audited by
Coopers & Lybrand L.L.P., independent accountants.  The information for the
six-month period ended June 30, 1997 is unaudited.  The financial highlights
should be read in conjunction with the financial statements, the notes thereto,
and the unqualified report of independent accountants, which are contained in
the Statement of Additional Information.

Further information about the performance of the Class S shares of the Funds is
contained in the Trust's most recent Annual Report and Semiannual Report.  The
Statement of Additional Information, the Annual Report and Semiannual Report may
be obtained without charge by writing to the Trust's Secretary.     

MassMutual Prime Fund

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>    
<CAPTION>
                                                                                      CLASS S
                                                            ----------------------------------------------------------
                                                            SIX MONTHS ENDED
                                                                6/30/97         YEAR ENDED   YEAR ENDED   PERIOD ENDED
                                                              (UNAUDITED)        12/31/96     12/31/95    12/31/94+**
                                                            ----------------    ----------   ----------   ------------  
<S>                                                         <C>                <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                           $  151.00         $  151.06    $  150.36   $     150.00
                                                               ---------         ---------    ---------   ------------
Income (loss) from investment operations:
 Net investment income                                              3.93***           7.85***      8.70***        1.55
 Net realized and unrealized gain (loss) on investments             0.01              0.06        (0.02)          0.34
                                                               ---------         ---------    ---------   ------------
  Total income from investment operations                           3.94              7.91         8.68           1.89
                                                               ---------         ---------    ---------   ------------
LESS DISTRIBUTIONS TO SHAREHOLDERS:
 From net investment income                                           --             (7.97)       (7.98)         (1.53)
                                                               ---------         ---------    ---------   ------------
NET ASSET VALUE, END OF PERIOD                                 $  154.94         $  151.00    $  151.06   $     150.36
                                                               =========         =========    =========   ============
Total Return@                                                       2.61%             5.24%        5.78%          1.26%
RATIOS / SUPPLEMENTAL DATA:
 Net assets, end of period (000's)                             $ 244,615         $ 258,729    $ 253,936   $    170,548
 Net expenses to average daily net assets#                        0.5274%*          0.5160%      0.5160%        0.5160%*
 Net investment income to average daily net assets                  5.18%*            5.10%        5.61%          5.01%*

  #Computed after giving effect to the voluntary partial
   waiver of management fee by MassMutual, which
   terminated May 1, 1997. Without this partial waiver
   of fees by MassMutual, the ratio of expenses to
   average daily net assets would have been:                      0.5506%*          0.5509%      0.5468%        0.5605%*
</TABLE>     
    
+All per share amounts for the period have been restated to reflect a 1 for15
 reverse stock split effective December 16, 1994.
*Annualized
**For the period from October 3, 1994 (commencement of operations) through
December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.
@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth  in
 their respective Plan Documents.  Total return figures would be lower for the
 periods presented if they reflected these charges.     

                                       7
<PAGE>
 
MassMutual ShortTerm Bond Fund

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 

                                                                                     CLASS S
                                                            ---------------------------------------------------------
                                                            SIX MONTHS ENDED
                                                                 6/30/97       YEAR ENDED   YEAR ENDED   PERIOD ENDED
                                                              (UNAUDITED)        12/31/96     12/31/95     12/31/94**
                                                            ----------------   ----------   ----------   ------------
<S>                                                         <C>                <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                           $   10.11        $   10.15    $    9.85    $     10.00
                                                               ---------        ---------    ---------    -----------
Income (loss) from investment operations:
 Net investment income                                              0.32***          0.60         0.66           0.16
 Net realized and unrealized gain (loss) on investments            (0.06)           (0.03)        0.50          (0.15)
                                                               ---------        ---------    ---------    -----------
  Total income from investment operations                           0.26             0.57         1.16           0.01
                                                               ---------        ---------    ---------    -----------
LESS DISTRIBUTIONS TO SHAREHOLDERS:
 From net investment income                                           --            (0.60)       (0.66)         (0.16)
 From net realized gains                                              --            (0.01)       (0.20)            --
                                                               ---------        ---------    ---------    -----------
  Total distributions                                                 --            (0.61)       (0.86)         (0.16)
                                                               ---------        ---------    ---------    -----------
NET ASSET VALUE, END OF PERIOD                                 $   10.37        $   10.11    $   10.15    $      9.85
                                                               =========        =========    =========    ===========
Total Return@                                                       2.57%            5.57%       11.77%          0.13%

RATIOS/SUPPLEMENTAL DATA:
 Net assets, end of period (000's)                             $ 172,064        $ 145,182    $ 122,904    $   106,846
 Net expenses to average daily net assets#                        0.5309%*         0.5190%      0.5190%        0.5190%*
 Net investment income to average daily net assets                  6.39%*           6.00%        6.32%          6.37%*
 Portfolio turnover rate                                               9%              61%         114%            15%

  #Computed after giving effect to the voluntary partial
  waiver of management fee by MassMutual, which
  terminated May 1, 1997. Without this partial waiver
  of fees by MassMutual, the ratio of expenses to
  average daily net assets would have been:                       0.5546%*         0.5545%      0.5524%        0.5654%*
</TABLE>      

*  Annualized
** For the period from October 3, 1994 (commencement of operations) through
   December 31, 1994.
    
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of 
   operations.     

@  Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.

                                       8
<PAGE>
 
MassMutual Core Bond Fund

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 
                                                                                     CLASS S
                                                            ---------------------------------------------------------
                                                            SIX MONTHS ENDED
                                                                 6/30/97       YEAR ENDED   YEAR ENDED   PERIOD ENDED
                                                              (UNAUDITED)        12/31/96     12/31/95     12/31/94**
                                                            ----------------   ----------   ----------   ------------
<S>                                                         <C>                <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                           $   10.45        $   10.75    $    9.84    $     10.00
                                                               ---------        ---------    ---------    -----------
Income (loss) from investment operations:
 Net investment income                                              0.34***          0.67***     0.72 ***        0.18
 Net realized and unrealized gain (loss) on investments            (0.04)           (0.37)        1.17          (0.16)
                                                               ---------        ---------    ---------    -----------
  Total income from investment operations                           0.30             0.30         1.89           0.02
                                                               ---------        ---------    ---------    -----------
LESS DISTRIBUTIONS TO SHAREHOLDERS:
 From net investment income                                           --            (0.54)       (0.65)         (0.18)
 From net realized gains                                              --            (0.06)       (0.33)            --
                                                               ---------        ---------    ---------    -----------
  Total distributions                                                 --            (0.60)       (0.98)         (0.18)
                                                               ---------        ---------    ---------    -----------
NET ASSET VALUE, END OF PERIOD                                 $   10.75        $   10.45    $   10.75    $      9.84
                                                               =========        =========    =========    ===========
Total Return@                                                       2.87%            2.80%       19.15%          0.20%

RATIOS/SUPPLEMENTAL DATA:

 Net assets, end of period (000's)                             $ 416,687        $ 356,699    $ 253,540    $   194,150
 Net expenses to average daily net assets#                        0.5270%*         0.5130%      0.5130%        0.5130%*
 Net investment income to average daily net assets                  6.59%*           6.26%        6.56%          6.86%*
 Portfolio turnover rate                                              22%              54%         104%             7%

 #Computed after giving effect to the voluntary partial
  waiver of management fee by MassMutual, which
  terminated May 1, 1997. Without this partial waiver
  of fees by MassMutual, the ratio of expenses to
  average daily net assets would have been:                       0.5532%*         0.5550%      0.5553%        0.5672%*
</TABLE>     

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.
@  Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.

                                       9
<PAGE>
 
MassMutual Balanced Fund

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 
                                                                                     CLASS S
                                                            ---------------------------------------------------------
                                                            SIX MONTHS ENDED
                                                                 6/30/97       YEAR ENDED   YEAR ENDED   PERIOD ENDED
                                                              (UNAUDITED)        12/31/96     12/31/95     12/31/94**
                                                            ----------------   ----------   ----------   ------------
<S>                                                         <C>                <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                           $   12.34        $   11.51    $    9.92    $     10.00
                                                               ---------        ---------    ---------    ----------- 
Income (loss) from investment operations:
 Net investment income                                              0.23             0.46         0.44           0.11
 Net realized and unrealized gain (loss) on investments             1.03             1.02         1.68          (0.08)
                                                               ---------        ---------    ---------    ----------- 
  Total income from investment operations                           1.26             1.48         2.12           0.03
                                                               ---------        ---------    ---------    ----------- 
LESS DISTRIBUTIONS TO SHAREHOLDERS:                                            
 From net investment income                                           --            (0.46)       (0.44)         (0.11)
 From net realized gains                                              --            (0.19)       (0.09)            --
                                                               ---------        ---------    ---------    ----------- 
  Total distributions                                                 --            (0.65)       (0.53)         (0.11)
                                                               ---------        ---------    ---------    ----------- 
NET ASSET VALUE, END OF PERIOD                                 $   13.60        $   12.34    $   11.51    $      9.92
                                                               =========        =========    =========    =========== 
Total Return@                                                      10.21%           12.83%       21.31%          0.29%

RATIOS/SUPPLEMENTAL DATA:                                                    
 Net assets, end of period (000's)                             $ 628,246        $ 563,280    $ 456,773    $   349,688
 Net expenses to average daily net assets#                        0.5256%*         0.5120%      0.5120%        0.5120%*
 Net investment income to average daily net assets                  3.67%*           3.83%        4.18%          4.29%*
 Portfolio turnover rate                                              13%              26%          23%             2%
 Average broker commission rate (a)                            $  0.0593        $  0.0594          N/A            N/A

  #Computed after giving effect to the voluntary partial                       
   waiver of management fee by MassMutual, which                                
   terminated May 1, 1997. Without this partial waiver                          
   of fees by MassMutual, the ratio of expenses to                              
   average daily net assets would have been:                    0.5514%*           0.5522%      0.5514%       0.5650%*
</TABLE>      
*  Annualized
** For the period from October 3, 1994 (commencement of operations) through
   December 31, 1994.
@  Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

                                       10
<PAGE>
 
MassMutual Value Equity Fund

Financial Highlights
(For a share outstanding throughout each period)
<TABLE>     
<CAPTION> 


                                                                                        CLASS S
                                                             ----------------------------------------------------------
                                                              SIX MONTHS ENDED
                                                                  6/30/97        YEAR ENDED   YEAR ENDED   PERIOD ENDED
                                                                (UNAUDITED)        12/31/96     12/31/95     12/31/94**
                                                             ----------------    ----------   ----------   ------------
<S>                                                         <C>                <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                           $    14.49       $    12.63   $     9.91     $    10.00
                                                               ----------       ----------   ----------     ---------- 
Income (loss) from investment operations:                                   
 Net investment income                                               0.15             0.34         0.31           0.08
 Net realized and unrealized gain (loss) on investments              2.26             2.22         2.82          (0.09)
                                                               ----------       ----------   ----------     ---------- 
  Total income (loss) from investment operations                     2.41             2.56         3.13          (0.01)
                                                               ----------       ----------   ----------     ---------- 
LESS DISTRIBUTIONS TO SHAREHOLDERS:                                         
 From net investment income                                            --            (0.34)       (0.31)         (0.08)
 From net realized gains                                               --            (0.39)       (0.10)            --
                                                               ----------       ----------   ----------     ---------- 
  Total distributions                                                  --            (0.73)       (0.41)         (0.08)
                                                               ----------       ----------   ----------     ---------- 
NET ASSET VALUE, END OF PERIOD                                 $    16.87       $    14.46   $    12.63     $     9.91
                                                               ==========       ==========   ==========     ========== 
Total Return@                                                       16.67%           20.24%       31.54%         (0.10)%

RATIOS / SUPPLEMENTAL DATA:                                                 
 Net assets, end of period (000's)                             $2,939,063       $2,485,743   $2,125,248     $1,563,563
 Net expenses to average daily net assets#                         0.5226%*         0.5067%      0.5067%        0.5067%*
 Net investment income to average daily net assets                   1.99%*           2.42%        2.72%          3.20%*
 Portfolio turnover rate                                                9%              13%          16%             3%
 Average broker commission rate (a)                            $   0.0593       $   0.0585          N/A            N/A

  # Computed after giving effect to the voluntary partial                    
    waiver of management fee by MassMutual, which                             
    terminated May 1, 1997. Without this partial waiver                       
    of fees by MassMutual, the ratio of expenses to                           
    average daily net assets would have been:                      0.5521%*         0.5534%      0.5528%        0.5681%*
</TABLE>      
*   Annualized
**  For the period from October 3, 1994 (commencement of operations) through
    December 31, 1994.
@   Employee retirement benefit plans that invest plan assets in the Separate
    Investment Accounts (SIAs) may be subject to certain charges as set forth in
    their respective Plan Documents. Total return figures would be lower for the
    periods presented if they reflected these charges.
(a) Average commission rate paid is computed by dividing the total amount of
    commissions paid during the fiscal year by the total number of shares
    purchased and sold during the fiscal year for which commissions were
    charged. For fiscal years beginning on or after September 1, 1995, a Fund is
    required to disclose its average commission rate per share for security
    trades on which commissions are charged.

                                       11
<PAGE>
 
MassMutual Small Cap Value Equity Fund

Financial Highlights
(For a share outstanding throughout each period)
<TABLE>     
<CAPTION> 

                                                                                       CLASS S
                                                               -------------------------------------------------------
                                                               SIX MONTHS ENDED
                                                                    6/30/97     YEAR ENDED   YEAR ENDED  PERIOD ENDED
                                                                  (UNAUDITED)    12/31/96     12/31/95    12/31/94**
                                                                 -------------  ----------   ----------   ----------
<S>                                                             <C>             <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                               $    13.43   $    11.44   $     9.69   $    10.00
                                                                   ----------   ----------   ----------   ----------  
Income (loss) from investment operations:
 Net investment income                                                   0.07         0.31         0.19         0.04
 Net realized and unrealized gain (loss) on investments                  2.10         2.29         1.75        (0.31)
                                                                   ----------   ----------   ----------   ---------- 
  Total income (loss) from investment operations                         2.17         2.60         1.94        (0.27)
                                                                   ----------   ----------   ----------   ----------  
LESS DISTRIBUTIONS TO SHAREHOLDERS:                                                                         
 From net investment income                                                --        (0.30)       (0.19)       (0.04)
 From net realized gains                                                   --        (0.31)          --           --
                                                                   ----------   ----------   ----------   ----------  
  Total distributions                                                      --        (0.61)       (0.19)       (0.04)
                                                                   ----------   ----------   ----------   ----------  
NET ASSET VALUE, END OF PERIOD                                     $    15.60   $    13.43   $    11.44   $     9.69
                                                                   ==========   ==========   ==========   ==========
Total Return@                                                           16.16%       22.82%       20.01%       (2.66)%
                                                                                                            
RATIOS / SUPPLEMENTAL DATA:                                                                                 
                                                                                                            
 Net assets, end of period (000's)                                 $  565,662   $  456,935   $  380,398   $  310,789
 Net expenses to average daily net assets#                             0.6257%*     0.6110%      0.6110%      0.6110%*
 Net investment income to average daily net assets                       1.01%*       2.40%        1.78%        1.78%*
 Portfolio turnover rate                                                   17%          28%          28%           4%
 Average broker commission rate (a)                                $   0.0543   $   0.0585          N/A          N/A
                                                                                                         
  #  Computed after giving effect to the voluntary partial                                                 
     waiver of management fee by MassMutual, which                                                          
     terminated May 1, 1997. Without this partial waiver                                                    
     of fees by MassMutual, the ratio of expenses to                                                        
     average daily net assets would have been:                         0.6530%*     0.6546%      0.6553%      0.6681%*
</TABLE>      
*    Annualized
**   For the period from October 3, 1994 (commencement of operations) through
     December 31, 1994.
@    Employee retirement benefit plans that invest plan assets in the Separate
     Investment Accounts (SIAs) may be subject to certain charges as set forth
     in their respective Plan Documents. Total return figures would be lower for
     the periods presented if they reflected these charges.
(a)  Average commission rate paid is computed by dividing the total amount of
     commissions paid during the fiscal year by the total number of shares
     purchased and sold during the fiscal year for which commissions were
     charged. For fiscal years beginning on or after September 1, 1995, a Fund
     is required to disclose its average commission rate per share for security
     trades on which commissions are charged.

                                       12
<PAGE>
 
MassMutual International Equity Fund

Financial Highlights
(For a share outstanding throughout each period)

<TABLE> 
<CAPTION> 

                                                                                        CLASS S
                                                             ----------------------------------------------------------
                                                              SIX MONTHS ENDED
                                                                  6/30/97        YEAR ENDED   YEAR ENDED   PERIOD ENDED
                                                                (UNAUDITED)        12/31/96     12/31/95     12/31/94**
                                                             ----------------    ----------   ----------   ------------
<S>                                                         <C>                <C>          <C>          <C>
NET ASSET VALUE, BEGINNING OF PERIOD                            $   11.11        $    9.58    $    9.28     $   10.00   
                                                                ---------        ---------    ---------     ---------       
Income (loss) from investment operations:                                                                                 
 Net investment income                                               0.07             0.06         0.07          0.00   
 Net realized and unrealized gain (loss) on investments                                                                   
 and foreign currency                                                1.77             1.71         0.41         (0.72)  
                                                                ---------        ---------    ---------     ---------  
  Total income (loss) from investment operations                     1.84             1.77         0.48         (0.72)  
                                                                ---------        ---------    ---------     ---------       
LESS DISTRIBUTIONS TO SHAREHOLDERS:                                                                                       
 From net investment income                                            --            (0.24)       (0.07)           --   
 In excess of net investment income                                    --               --        (0.11)           --   
                                                                ---------        ---------    ---------     ---------       
  Total distributions                                                  --            (0.24)       (0.18)           --   
                                                                ---------        ---------    ---------     ---------       
NET ASSET VALUE, END OF PERIOD                                  $   12.95        $   11.11    $    9.58     $    9.28   
                                                                =========        =========    =========     =========       
Total Return@                                                       16.56%           18.51%        5.13%        (7.20)%  
                                                                                                                          
RATIOS / SUPPLEMENTAL DATA:                                                                                               
                                                                                                                          
 Net assets, end of period (000's)                              $ 515,778        $ 356,311    $ 220,718     $ 150,199   
 Net expenses to average daily net assets#                         1.0229%*         1.0020%      1.0020%       1.0020%*   
 Net investment income to average daily net assets                   1.26%*           0.59%        0.76%         0.04%*   
 Portfolio turnover rate                                               36%              58%         121%           18%  
 Average broker commission rate (a)                             $  0.0058        $  0.0254          N/A           N/A   
                                                                                                                          
  # Computed after giving effect to the voluntary partial                                                                  
    waiver of management fee by MassMutual, which                                                                           
    terminated May 1, 1997. Without this partial waiver                                                                     
    of fees by MassMutual, the ratio of expenses to                                                                         
    average daily net assets would have been:                    1.0468%*           1.0718%      1.0920%       1.0877%*   
</TABLE> 

*   Annualized
**  For the period from October 3, 1994 (commencement of operations) through
    December 31, 1994.
@   Employee retirement benefit plans that invest plan assets in the Separate
    Investment Accounts (SIAs) may be subject to certain charges as set forth in
    their respective Plan Documents. Total return figures would be lower for the
    periods presented if they reflected these charges.
(a) Average commission rate paid is computed by dividing the total amount of
    commissions paid during the fiscal year by the total number of shares
    purchased and sold during the fiscal year for which commissions were
    charged. For fiscal years beginning on or after September 1, 1995, a Fund is
    required to disclose its average commission rate per share for security
    trades on which commissions are charged.

LINE OF CREDIT
    
On January 11, 1996, the Trust, on behalf of each Fund, entered into a
discretionary line of credit agreement with PNC Bank, N.A.  Each Fund may borrow
under the line of credit, provided that the Trust's borrowings do not exceed
$50,000,000 in the aggregate at any one time.  Interest is charged based on
outstanding borrowings at the Federal Funds Rate plus 0.45%.  Only the
International Equity Fund utilized the line of credit during the year ended
December 31, 1996 and the six months ended June 30, 1997. The table below sets
forth information regarding the International Equity Fund's utilization of the
line of credit during these periods.    
<TABLE>     
<CAPTION> 
                                                              AVERAGE NUMBER OF        AVERAGE AMOUNT OF DEBT
                   AMOUNT OF DEBT   AVERAGE AMOUNT OF   INTERNATIONAL EQUITY FUND'S         PER SHARE OF
                   OUTSTANDING AT   DEBT OUTSTANDING         SHARES OUTSTANDING       INTERNATIONAL EQUITY FUND
     PERIOD        END OF PERIOD    DURING THE PERIOD         DURING THE PERIOD           DURING THE PERIOD   
    --------       --------------   -----------------   ---------------------------   -------------------------
    <S>            <C>              <C>                 <C>                           <C>
    Year ended
    December 31,
    1996             $1,600,000         $3,517,944                27,151,338                      $0.13

    Six months
    ended June 30,
    1997             $        0         $6,904,444                35,867,968                      $0.19
</TABLE>     

                                       13
<PAGE>
 
THE TRUST
    
The Trust is an openend, management investment company designed to offer
investors both the opportunity to pursue long-term investment goals and the
flexibility to respond to changes in their investment objectives and economic
and market conditions.  This Prospectus describes  seven separate, diversified
series of shares of the Trust (the "Funds"), each of which has three classes of
shares.  For information regarding the classes of shares of the Funds, see "How
to Purchase, Exchange, and Redeem Shares" below.     
    
The Trust is organized under the laws of The Commonwealth of Massachusetts as a
Massachusetts business trust pursuant to an Agreement and Declaration of Trust
dated May 28, 1993, as amended from time to time (the "Declaration of Trust").
Each share of a Fund represents an investment in that Fund's portfolio of
securities.  The value of an investment in a Fund will vary as the value of the
underlying portfolio increases or decreases.  Dividends paid for a class of a
Fund will vary in relation to the expenses each class incurs.     

The Board of Trustees of the Trust is generally responsible for management of
the business and affairs of the Trust.  Trustees formulate the general policies
of the Trust and the Funds, approve contracts and authorize Trust officers to
carry out the decisions of the Board.  As Adviser and Sub-Advisers to the Funds,
MassMutual, Babson and HarbourView may be considered part of the management of
the Trust.  For more information concerning the management of the Trust,
reference should be made to the Statement of Additional Information.

INVESTMENT OBJECTIVES AND POLICIES OF THE FUNDS

Each Fund has a separate investment objective, which may not be changed without
the vote of a majority of that Fund's outstanding voting shares./1/  There can
be no assurance that a Fund will achieve its investment objective; the success
of a Fund depends to a great extent upon changes in market conditions.

(1) MASSMUTUAL PRIME FUND

THE INVESTMENT OBJECTIVE OF THE PRIME FUND IS TO MAXIMIZE CURRENT INCOME TO THE
EXTENT CONSISTENT WITH LIQUIDITY AND THE PRESERVATION OF CAPITAL BY INVESTING IN
A DIVERSIFIED PORTFOLIO OF MONEY MARKET INSTRUMENTS.

The Fund invests in high quality debt instruments having a remaining maturity
not exceeding 397 days.  It is the Fund's policy to invest in the following
types of short-term instruments:
    
  (a) Commercial paper and obligations of corporate issuers that at the date of
      acquisition are rated in one of the two highest ratings of at least one
      nationally recognized statistical rating organization ("NRSRO") or, if
      unrated, are judged by MassMutual to be of equivalent quality./2/     

  (b)  U.S. Government Securities./3/

  (c)  Bank participation certificates that represent interests in all or part
       of specific bank loans, provided that at the date of acquisition (1) they
       have a remaining maturity of 397 days or less; and (2) each of the
       underlying loans is made to an issuer of securities rated in one of the
       two highest ratings of at least one NRSRO or, if unrated, are judged by
       MassMutual to be of equivalent quality.

  (d)  Certificates of deposit and bankers' acceptances of banks and savings and
       loan associations having deposits of at least $1 billion as of their most
       recently published financial statements.

  (e)  Obligations of foreign issuers, payable in U.S. dollars, provided that no
       such investment will be made if as a result more than 25% of the Fund's
       total assets would be invested in such securities.

The Fund will make portfolio investments primarily in response to changing
economic and money market conditions and trends. Trading activity is expected to
be low. It is anticipated, however, that from time to time the Fund will take
advantage of temporary disparities in the yield relationships among the
different segments of the money market or among particular instruments within
the same segment of the market to make purchases and sales when management deems
that such transactions will improve the yield or the quality of the portfolio.
The Fund is not a money market fund as defined in Rule 2a-7 under the Investment
Company Act of 1940 (the "1940 Act"). The portfolio of the Fund is managed by
Mary E. Wilson, Senior Managing Director of MassMutual, with which she has been
associated since 1982.

(2) MASSMUTUAL SHORT-TERM BOND FUND

THE INVESTMENT OBJECTIVE OF THE SHORT-TERM BOND FUND IS TO ACHIEVE A HIGH TOTAL
RATE OF RETURN PRIMARILY FROM CURRENT INCOME WHILE MINIMIZING FLUCTUATIONS IN
CAPITAL VALUES BY INVESTING PRIMARILY IN A DIVERSIFIED PORTFOLIO OF SHORT-TERM
INVESTMENT GRADE FIXED INCOME SECURITIES.

- ----------------------
/1/ As used in this Prospectus, a majority of the outstanding voting shares of 
any Fund means the lesser of (a) 67% of that Fund's outstanding shares present 
at a meeting of shareholders if more than 50% of the outstanding shares are 
present in person or by proxy, or (b) more than 50% of that Fund's outstanding 
shares.

/2/ For a description of the ratings of two NRSROs. Standard & Poor's Ratings 
Group ("S&P") and Moody's Investors Service, Inc. ("Moody's"), see the Appendix 
to the Statement of Additional Information. For example, the two highest ratings
of Moody's for commercial paper are P-1 and P-2.

/3/ See the Glossary for a definition of U.S. Government Securities.

                                       14
<PAGE>
 
The Fund invests in investment grade fixed income securities.  Investment grade
fixed income securities are securities that at the date of acquisition are rated
in one of the four highest ratings of at least one NRSRO or, if unrated, are
judged by MassMutual to be of equivalent quality./4/  For example, the Fund may
invest in the following types of debt instruments:

  (a)  Corporate securities.

  (b)  U.S. Government Securities.

  (c)  Obligations issued or guaranteed as to principal and interest by the
       Government of Canada, a Province of Canada, or any instrumentality or
       political subdivision thereof, provided that no such investment will be
       made if as a result more than 25% of the Fund's total assets would be
       invested in such securities.

  (d)  Obligations (including certificates of deposit, time deposits or bankers'
       acceptances) of U.S. or Canadian chartered banks having total deposits in
       excess of $1 billion, U.S. branches of foreign banks having total
       deposits in excess of $1 billion, U.S. savings and loan associations
       having total deposits in excess of $1 billion, and Eurodollar
       certificates of deposit issued by foreign branches of U.S. banks having
       total deposits in excess of $1 billion.

  (e)  Publicly traded debt securities issued or guaranteed by a national or
       state bank or bank holding company (as defined in the Federal Bank
       Holding Company Act, as amended) that at the date of acquisition are
       rated in one of the three highest ratings of at least one NRSRO or, if
       unrated, are judged by MassMutual to be of equivalent quality, and
       certificates of deposit of such banks.

  (f)  Commercial paper that at the date of investment is rated in the two
       highest ratings of at least one NRSRO or, if unrated, is judged by
       MassMutual to be of equivalent quality.

  (g)  Bank participation certificates that represent interests in all or part
       of specific bank loans, provided that at the date of investment each of
       the underlying loans is made to an issuer of securities rated in one of
       the two highest short-term debt ratings of at least one NRSRO or, if
       unrated, are judged by MassMutual to be of equivalent quality.
    
  (h)  Certificates of deposit and bankers' acceptances of banks and savings and
       loan associations having deposits of at least $1 billion as of their most
       recently published financial statements.     

  (i)  Securities of foreign issuers (other than those listed in (c) or (d)
       above) that meet credit quality requirements similar to those above,
       provided that no such investment will be made if as a result more than
       25% of the Fund's total assets would be invested in such securities.
    
Under normal market conditions, the Fund generally will have an average
effective portfolio Duration of no more than three years./5/  Portfolio Duration
changes may be accomplished primarily through the reinvestment of cash flows and
selective trading.  Neither market timing nor interest rate anticipation methods
are employed in managing the Fund.  The portfolio of the Fund is managed by
Ronald E. Desautels, Managing Director of MassMutual, with which he has been
associated since 1989.     


(3) MASSMUTUAL CORE BOND FUND

THE INVESTMENT OBJECTIVE OF THE CORE BOND FUND IS TO ACHIEVE A HIGH TOTAL RATE
OF RETURN CONSISTENT WITH PRUDENT INVESTMENT RISK AND THE PRESERVATION OF
CAPITAL BY INVESTING PRIMARILY IN A DIVERSIFIED PORTFOLIO OF INVESTMENT GRADE
FIXED INCOME SECURITIES.

The Fund invests in investment grade, publicly traded, readily marketable, fixed
income securities of such maturities as MassMutual deems appropriate from time
to time in light of market conditions and prospects.  Investment grade fixed
income securities are securities that at the date of acquisition are rated in
one of the four highest ratings of at least one NRSRO or, if unrated, are judged
by MassMutual to be of equivalent quality.  For example, the Fund may invest in
the following types of debt instruments:

  (a)  Corporate securities.

  (b)  U.S. Government Securities.

  (c)  Obligations issued or guaranteed as to principal and interest by the
       Government of Canada, a Province of Canada, or any instrumentality or
       political subdivision thereof, provided that no such investment will be
       made if as a result more than 25% of the Fund's total assets would be
       invested in such securities.

- ------------------
/4/ For example, the four highest ratings of Moody's for debt obligations are 
    Aaa, Aa, A, and Baa (including Baa3).
/5/ See the Glossary for a definition of Duration.

                                       15
<PAGE>
 
  (d)  Obligations (including certificates of deposit, time deposits or bankers'
       acceptances) of U.S. or Canadian chartered banks having total deposits in
       excess of $1 billion, U.S. branches of foreign banks having total
       deposits in excess of $1 billion, U.S. savings and loan associations
       having total deposits in excess of $1 billion, and Eurodollar
       certificates of deposit issued by foreign branches of U.S. banks having
       total deposits in excess of $1 billion.

  (e)  Publicly traded debt securities issued or guaranteed by a national or
       state bank or bank holding company (as defined in the Federal Bank
       Holding Company Act, as amended) having a rating within the three highest
       ratings as determined by at least one NRSRO or, if unrated, are judged by
       MassMutual to be of equivalent quality, and certificates of deposit of
       such banks.

  (f)  Securities of foreign issuers (other than those listed in (c) or (d)
       above) that at the date of acquisition are rated in one of the four
       highest ratings of at least one NRSRO or, if unrated, are judged by
       MassMutual to be of equivalent quality, provided that no such investment
       will be made if as a result more than 25% of the Fund's total assets
       would be invested in such securities.
    
Normally, the Fund's portfolio Duration will range from four to seven years.
Portfolio Duration changes will be accomplished primarily through the
reinvestment of cash flows and selective trading.  The portfolio of the Fund is
managed by Mary E. Wilson, Senior Managing Director of MassMutual, with which
she has been associated since 1982.     

(4) MASSMUTUAL BALANCED FUND

THE INVESTMENT OBJECTIVE OF THE BALANCED FUND IS TO ACHIEVE A HIGH TOTAL RATE OF
RETURN OVER AN EXTENDED PERIOD OF TIME CONSISTENT WITH THE PRESERVATION OF
CAPITAL VALUES BY INVESTING IN A DIVERSIFIED PORTFOLIO OF EQUITY SECURITIES,
FIXED INCOME SECURITIES AND MONEY MARKET INSTRUMENTS.

The Fund invests in three market sectors:

     THE PRIME SECTOR - The Prime Sector invests in accordance with the
     investment objective and policies of the Prime Fund.

     THE CORE BOND SECTOR - The Core Bond Sector invests in accordance with the
     investment objective and policies of the Core Bond Fund.


     THE VALUE EQUITY SECTOR - The Value Equity Sector invests in accordance
     with the investment objective and policies of the Value Equity Fund.
    
The Fund adjusts the mix of investments among its three market sectors to
capitalize on perceived variations in return potential produced by the
interaction of changing financial market and economic conditions.  The Fund
expects that such adjustments normally will be made in a gradual manner over a
period of time.  Under normal circumstances at least 25% of the Fund's total
assets will be invested in senior fixed income securities (including short-term
money market instruments).  In addition, under normal circumstances, no
investment will be made that would result in more than 35% of the Fund's net
assets being invested in the Prime Sector, more than 35% in the Core Bond Sector
or more than 65% in the Value Equity Sector.  In unusual circumstances, the Fund
may invest up to 70% of its total assets in the Equity Sector or up to 50% of
its total assets in the Bond Sector.  MassMutual is the Fund's adviser and
Babson is the Sub-Adviser to the Value Equity Sector.  The portfolio of the Fund
is managed by a committee of MassMutual and Babson investment professionals.    

(5) MASSMUTUAL VALUE EQUITY FUND

THE INVESTMENT OBJECTIVE OF THE VALUE EQUITY FUND IS TO ACHIEVE LONG-TERM GROWTH
OF CAPITAL AND INCOME BY INVESTING PRIMARILY IN A DIVERSIFIED PORTFOLIO OF
EQUITY SECURITIES OF LARGER WELL-ESTABLISHED COMPANIES.
    
The Fund invests primarily in common stocks, securities convertible into common
stocks, and other equity securities (such as warrants and stock rights) which
are normally cash dividend-paying and listed on a national securities exchange
or traded in the over-the-counter market. The issuers of securities in which the
Fund will invest generally are companies with market capitalizations in excess
of $2 billion and a history of operations of five years or more. MassMutual is
the Fund's adviser and its Sub-Adviser is Babson.     
    
The Fund utilizes a value-oriented strategy in making investment decisions.  As
such, investments are made in securities of companies which, in the opinion of
Babson, are of high quality, offer above-average dividend growth potential and
are attractively valued in the marketplace.  Investment quality and dividend
growth potential are evaluated using fundamental analysis emphasizing each
issuer's historical financial performance, balance sheet strength, management
capability and competitive position.  Various valuation parameters are examined
to determine the attractiveness of individual securities.  On average, the
Fund's portfolio securities will have price/earnings ratios and price/book value
ratios below those of the Standard & Poor's 500 Composite Stock Price Index (the
"S&P 500 Stock Index").  Consideration also is given to securities of companies
whose current prices do not adequately reflect, in the opinion of Babson, the
ongoing business value of the enterprise.  The Fund's portfolio is managed by
James W. MacAllen, Executive Vice President and Chief Investment Officer of
Babson.  Mr. MacAllen has been associated with Babson since January 1, 1996.
During 1996, Mr. MacAllen was also Senior Vice President of Concert Capital
Management, Inc., which was then an indirect subsidiary of MassMutual ("Concert
Capital"), and, as such, managed the portfolio of the Fund. Formerly, Mr.
MacAllen was associated with Hagler, Mastrovita and Hewitt and prior to that was
President and Chief Investment Officer of Wilmington Capital Management.     

                                       16
<PAGE>
 
(6) MASSMUTUAL SMALL CAP VALUE EQUITY FUND

THE INVESTMENT OBJECTIVE OF THE SMALL CAP VALUE EQUITY FUND IS TO ACHIEVE
LONG-TERM GROWTH OF CAPITAL AND INCOME BY INVESTING PRIMARILY IN A DIVERSIFIED
PORTFOLIO OF EQUITY SECURITIES OF SMALLER COMPANIES.
    
The Fund invests primarily in common stocks, securities convertible into common
stocks and other equity securities (such as warrants and stock rights) which are
issued by companies with a market capitalization of less than $750 million and
which are listed on a national securities exchange or traded in the
over-the-counter market.  MassMutual is the Fund's adviser and its Sub-Adviser
is Babson.     
    
The Fund utilizes a value-oriented strategy in making investment decisions.  As
such, investments are made in securities of companies that, in the opinion of
Babson, are of high quality or possess a unique product, market position or
operating characteristics which result in above-average levels of profitability
or superior growth potential and are attractively valued in the marketplace.
Traditional fundamental research techniques are employed to determine investment
quality and growth potential, emphasizing each issuer's historic financial
performance, balance sheet strength, management capability and competitive
position.  Valuation parameters are examined to determine the attractiveness of
individual securities.  On average, the Fund's holdings will have price/earnings
ratios and price/book value ratios below those of the S&P 500 Stock Index.
Consideration also is given to securities of companies whose current prices do
not adequately reflect, in the opinion of Babson, the ongoing business value of
the enterprise.     
    
The Fund may purchase securities with above-average volatility relative to
indices like the S&P 500 Stock Index.  While such volatility frequently may
involve the opportunity for greater gain, it also generally involves greater
risk of loss and, as a result, the Fund's shares are suitable only for those
investors who are in a financial position to assume such risk.  The Fund's
portfolio is managed by George M. Ulrich, Senior Vice President of Babson.  Mr.
Ulrich has been associated with Babson since 1996, Concert Capital (as Senior 
Vice President) from 1993 through 1996 and with MassMutual from 1983 to 
1993.     

(7) MASSMUTUAL INTERNATIONAL EQUITY FUND

THE INVESTMENT OBJECTIVE OF THE INTERNATIONAL EQUITY FUND IS TO ACHIEVE A HIGH
TOTAL RATE OF RETURN OVER THE LONG TERM BY INVESTING IN A DIVERSIFIED PORTFOLIO
OF FOREIGN AND DOMESTIC EQUITY SECURITIES.
    
The Fund invests primarily in common stocks, securities convertible into common
stocks, and other equity securities, (such as warrants and stock rights). The
Fund generally will have at least 75% of its total assets invested in foreign
securities, including securities of foreign issuers represented by American
Depository Receipts or traded in the U.S. over-the-counter market or listed on a
U.S. securities exchange.  Under normal market conditions, the Fund's assets
will be invested in securities traded in markets in at least three different
countries, excluding the United States.  In an uncertain market or economic
environment when it would be appropriate to maintain a defensive position, the
Fund may invest up to 100% of its assets in debt securities, such as rated or
unrated bonds and debentures, cash equivalents and preferred stocks.  It is
expected that short-term debt securities (i.e., those maturing in one year or
less from the date of purchase) will be emphasized for defensive or liquidity
purposes, since such securities usually may be disposed of quickly at prices not
involving significant losses.  When circumstances warrant, securities may be
sold without regard to the length of time held, although short-term trading may
increase brokerage costs borne by the Fund.     

The share price of the International Equity Fund will reflect the movements of
both the prices of the portfolio securities and the currencies in which the
securities are denominated.  Depending upon the extent of the Fund's investments
abroad, changes in the relative value of the U.S. dollar to the securities'
denominated currencies may have a positive or negative impact on the Fund's
share price.
    
The Fund's investment policies involve special risks.  Risks of investing in
foreign securities include foreign taxation, changes in currency rates or
currency blockage, currency exchange costs, and differences between domestic and
foreign legal, accounting, auditing, brokerage and economic standards.  See
"Investment Practices Of The Funds And Related Risks" below and "Foreign
Securities" in the Statement of Additional Information for further discussion of
the possible risks and rewards of investing in foreign securities.  MassMutual
is the Fund's adviser and its Sub-Adviser is HarbourView. The portfolio of the
Fund is managed by a committee composed of HarbourView investment 
professionals.     

INVESTMENT PRACTICES OF THE FUNDS AND RELATED RISKS

The Funds may invest in a wide range of investments and engage in various
investment-related transactions and practices.  These practices are pursuant to
non-fundamental policies and therefore may be changed by the Board of Trustees
without the consent of shareholders.  Some of the more significant practices are
discussed below.

REPURCHASE AGREEMENTS AND REVERSE REPURCHASE AGREEMENTS

Each Fund may engage in repurchase agreements and reverse repurchase agreements.
A repurchase agreement is a contract pursuant to which a Fund agrees to purchase
a security and simultaneously agrees to resell it at an agreed-upon price at a
stated time, thereby determining the yield during the Fund's holding period.  A
reverse repurchase agreement is a contract pursuant to which a Fund agrees to
sell a security and simulta-

                                       17
<PAGE>
 
neously agrees to repurchase it at an agreed-upon price at a stated time. For a
more detailed description of repurchase agreements and reverse repurchase
agreements and related risks, see the Statement of Additional Information.

SECURITIES LENDING
    
Each Fund may seek additional income by making loans of portfolio securities of
not more than 33% of its total assets taken at current value.  Although lending
portfolio securities may involve the risk of delay in recovery of the securities
loaned or possible loss of rights in the collateral should the borrower fail
financially, loans will be made only to borrowers deemed by the Adviser or
Sub-Advisor to be in good standing.     

HEDGING INSTRUMENTS AND DERIVATIVES
    
Each Fund may buy or sell forward contracts and other similar instruments and
may engage in foreign currency transactions (collectively referred to as
"hedging instruments" or "derivatives"), as more fully discussed in the
Statement of Additional Information.  Derivatives normally are used by a
portfolio manager to (a) protect against possible declines in the market value
of a Fund's portfolio resulting from downward trends in the relevant markets
(for example, in the debt securities markets generally due to increasing
interest rates); (b) protect a Fund's unrealized gains or limit its unrealized
losses; and (c) manage a Fund's exposure to changing security prices.
Derivatives also may be used to establish a position in the debt or equity
securities markets as a temporary substitute for purchasing or selling
particular debt or equity securities and to manage the effective maturity or
Duration of fixed income securities in a Fund's portfolio.     
    
(1) Forward Contracts - Each Fund may purchase or sell securities on a "when
    issued" or delayed delivery basis or may purchase or sell securities on a
    forward commitment basis ("forward contracts").  When such transactions are
    negotiated, the price is fixed at the time of commitment, but delivery and
    payment for the securities can take place a month or more after the
    commitment date.  The securities so purchased or sold are subject to market
    fluctuations and no interest accrues to the purchaser during this period.
    While a Fund also may enter into forward contracts with the initial
    intention of acquiring securities for its portfolio, it may dispose of a
    commitment prior to settlement if the Adviser or Sub-Adviser deems it
    appropriate to do so.     
    
(2) Currency Transactions/6/ - The International Equity Fund may, but will not
    necessarily, engage in foreign currency transactions with counter-parties in
    order to hedge the value of portfolio holdings denominated in particular
    currencies against fluctuations in relative value.  The Short-Term Bond
    Fund, the Core Bond Fund and the Core Bond Sector of the Balanced Fund may
    invest in foreign securities that are not denominated in U.S. dollars only
    if the Fund contemporaneously enters into a foreign currency transaction to
    hedge the currency risk associated with the particular foreign 
    security.     

Certain limitations apply to the use of forward contracts by the Funds.  For
example, a Fund will not enter into a forward contract if as a result more than
25% of its total assets would be held in a segregated account covering such
contracts.  For more information about forward contracts and currency
transactions and the extent to which tax considerations may limit a Fund's use
of such instruments, see the Statement of Additional Information.

There can be no assurance that the use of hedging instruments and derivatives by
a Fund will assist it in achieving its investment objective.  Risks inherent in
the use of these instruments include: (a) the risk that interest rates and
securities prices will not move in the direction anticipated; (b) the imperfect
correlation between the prices of a forward contract and the price of the
securities being hedged; and (c) the fact that skills needed to use these
strategies are different from those needed to select portfolio securities.  As
to forward contracts, the risk exists that the counterparty to the transaction
will be incapable of meeting its commitment, in which case the desired hedging
protection may not be obtained and the Fund may be exposed to risk of loss.  As
to currency transactions, risks exist that purchases and sales of currency and
related instruments can be negatively affected by government exchange controls,
blockages, and manipulations or exchange restrictions imposed by governments
which could result in losses to the Fund if it is unable to deliver or receive
currency or funds in settlement of obligations.  It also could cause hedges it
has entered into to be rendered useless, resulting in full currency exposure as
well as incurring transaction costs.



- ----------------------
    
/6/ See the Glossary for a definition of Currency Transactions.      

                                       18
<PAGE>
 
RESTRICTED AND ILLIQUID SECURITIES

None of the Funds currently expect to invest in restricted or illiquid
securities.  However, each Fund may invest not more than 15% of its net assets
in illiquid securities. These policies do not limit the purchase of securities
eligible for resale to qualified institutional buyers pursuant to Rule 144A
under the Securities Act of 1933, as amended, provided that such securities are
determined to be liquid by the Board of Trustees, or by the Adviser or
Sub-Adviser pursuant to Board-approved guidelines. If there is a lack of trading
interest in particular Rule 144A securities, a Fund's holdings of those
securities may be illiquid, resulting in the possibility of undesirable delays
in selling these securities at prices representing fair value.

FOREIGN SECURITIES
    
Investments in foreign securities offer potential benefits not available from
investing solely in securities of domestic issuers, such as the opportunity to
invest in foreign issuers that appear to offer growth potential, or to invest in
foreign countries with economic policies or business cycles different from those
of the United States or foreign stock markets that do not move in a manner
parallel to U.S. markets, thereby diversifying risks of fluctuations in
portfolio value.     

Investments in foreign securities entail certain risks, such as the possibility
of one or more of the following:  imposition of dividend or interest withholding
or confiscatory taxes; currency blockages or transfer restrictions;
expropriation, nationalization, military coups or other adverse political or
economic developments; less government supervision and regulation of securities
exchanges, brokers and listed companies, and the difficulty of enforcing
obligations in other countries.  Certain markets may require payment for
securities before delivery.  A Fund's ability and decisions to purchase and sell
portfolio securities may be affected by laws or regulations relating to the
convertibility of currencies and repatriation of assets.  Further, it may be
more difficult for a Fund's agents to keep currently informed about corporate
actions which may affect the prices of portfolio securities.  Communications
between the United States and foreign countries may be less reliable than within
the United States, thus increasing the risk of delayed settlements of portfolio
transactions or loss of certificates for portfolio securities.

PORTFOLIO MANAGEMENT
    
MassMutual, Babson and HarbourView may use trading as a means of managing the
portfolios of the Funds in seeking to achieve their investment objectives.
Transactions will occur when the Adviser or Sub-Adviser believe that the trade,
net of transaction costs, will improve interest income or capital appreciation
potential, or will lessen capital loss potential.  Whether the goals discussed
above will be achieved through trading depends on the Adviser's or Sub-Advisor's
ability to evaluate particular securities and anticipate relevant market
factors, including interest rate trends and variations from such trends.  If
such evaluations and expectations prove to be incorrect, a Fund's income or
capital appreciation may be reduced and its capital losses may be increased.  In
addition, high turnover in any Fund could result in additional brokerage
commissions to be paid by the Fund.  See also "Distribution And Taxation"
below.     
    
The Funds may pay brokerage commissions to Advest, Inc. and Jefferies & Co.,
Inc.  A trustee of the Trust is a director of the respective parent companies of
Advest, Inc. and Jefferies & Co., Inc.     

CASH POSITIONS

Each Fund may hold cash or cash equivalents to provide for expenses and
anticipated redemption payments and so that an orderly investment program may be
carried out in accordance with the Fund's investment policies.  To provide
liquidity or for temporary defensive purposes, each Fund may invest in
investment grade debt securities, government obligations, or money market
instruments.

INDUSTRY DIVERSIFICATION

As a general rule, a Fund will not acquire securities of issuers in any one
industry (as determined by the Board of Trustees) if as a result more than 25%
of the value of the total assets of the Fund would be invested in such industry,
with the following exceptions:

(1) There is no limitation for U.S. Government Securities.

(2) In the case of the Prime Fund and the Short-Term Bond Fund, there is no
    industry concentration limitation for certificates of deposit and bankers'
    acceptances.

CERTAIN DEBT SECURITIES

While the Funds, except for the Prime Fund, may invest in investment grade debt
securities that are rated in the fourth highest rating category by at least one
NRSRO (e.g., Baa3 by Moody's) or, if unrated, are judged by MassMutual to be of
equivalent quality, such securities have speculative characteristics, are
subject to greater credit risk, and may be subject to greater market risk than
higher rated investment grade securities.

FUNDAMENTAL INVESTMENT RESTRICTIONS

For a description of fundamental investment restrictions of the Funds which may
not be changed without the affirmative vote of a majority of the outstanding
voting shares of the Fund, reference should be made to the Statement of
Additional Information.

                                       19
<PAGE>
 
     
HOW TO PURCHASE, EXCHANGE, AND REDEEM SHARES     
    
FEATURES AND ELIGIBILITY REQUIREMENTS OF EACH CLASS     
    
Each of the Funds offers three different classes of shares to investors: Class
A, Class Y and Class S.  The different classes of a Fund's shares represent
investments in the same portfolio of securities but are subject to different
expenses and will likely have different share prices.  The Class A, Class Y and
Class S shares are offered as follows.     
    
 CLASS A SHARES - Class A shares of each Fund may be purchased by:  defined
 contribution plans and defined benefit plans that qualify under section 401(a)
 of the Internal Revenue Code of 1986, as amended (the "Code"), with Plan 
 Assets/7/ in excess of $2.5 million; tax sheltered annuity plans under Code
 section 403(b) with Plan Assets in excess of $2.5 million; and individual
 retirement accounts described in Code section 408, the assets of which are
 rolled over from qualified plans in connection with a program sponsored by the
 Adviser ("Rollover IRAs"). Class A shares may also be purchased by other
 institutional investors, such as deferred compensation plans described in Code
 section 457, voluntary employees' beneficiary associations described in Code
 section 509(c)(9), other nonqualified deferred compensation plans and other
 institutional or sophisticated investors, in each case with assets in excess of
 $2.5 million or which enter into an agreement with the Adviser or an affiliate
 of the Adviser for those purchases. In addition, Class A shares may be offered
 to present or former officers, directors, trustees and employees (and their
 spouses, parents, children and siblings) of the Trust, the Adviser and its
 affiliates, and retirement plans established by them for their employees.    
    
 CLASS Y SHARES - Class Y shares of each Fund may be purchased by nonqualified
 deferred compensation plans where the employer sponsor enters into an
 administrative services agreement with the Adviser, or an affiliate of the
 Adviser, with respect to the administration of the Plan. Class Y shares may
 also be purchased by defined contribution plans and defined benefit plans under
 Code section 401(a), and tax sheltered annuity plans under Code section 403(b),
 in each case with Plan Assets in excess of $10 million and which enter into an
 administrative services or other agreement with the Adviser or an affiliate of
 the Adviser. Class Y shares may also be purchased by: certain other
 institutional investors with assets in excess of $10 million which enter into
 an agreement with the Adviser or an affiliate of the Adviser; and other
 registered investment companies managed by the Adviser or an affiliate of the
 Adviser, including other series of the Trust.    
    
 CLASS S SHARES - Class S shares of each Fund are available only to separate
 investment accounts of MassMutual ("SIAs") in which corporate qualified plans,
 including defined contribution plans and defined benefit plans, certain
 governmental plans and church or other plans, are or may be permitted to invest
 pursuant to the issuance of group annuity contracts.     
    
CLASS A SHARES - SALES CHARGES AND 12B-1 FEES     
    
Class A shares are sold at net asset value per share without an initial sales
charge.  However, if an Investor redeems any Class A shares within 12 months of
the date on which the Investor first purchased Class A shares, a contingent
deferred sales charge (called the "Class A Contingent Deferred Sales Charge")
may be deducted from the redemption proceeds. If imposed, the Class A Contingent
Deferred Sales Charge will be equal to 1.0% of the lesser of: (1) the aggregate
net asset value of the redeemed shares (not including shares purchased by
reinvestment of dividends or capital gain distributions); and (2) the original
offering price (which is the original net asset value of the redeemed shares).
The Class A Contingent Deferred Sales Charge will not exceed the aggregate
commissions paid on account of all Class A shares of all Funds such Investor
purchased subject to the Class A Contingent Deferred Sales Charge.    
    
In determining whether a Class A Contingent Deferred Sales Charge is payable,
the Fund will first redeem shares that are not subject to the sales charge,
including shares purchased by reinvestment of dividends and capital gains, and
then will redeem other shares in the order purchased.     
    
No Class A Contingent Deferred Sales Charge is charged on exchanges of shares
under "Exchange Privileges and Procedures" (described below). However, if the
shares acquired by exchange are redeemed within 12 months of the initial
purchase of the exchanged shares, the Class A Contingent Deferred Sales Charge
will apply.    
    
The Class A Contingent Deferred Sales Charge is waived in certain cases
described below.     
    
WAIVERS OF THE CLASS A CONTINGENT DEFERRED SALES CHARGES FOR CERTAIN PURCHASERS.
Class A shares purchased by the following Investors are not subject to any Class
A Contingent Deferred Sales Charge:     
    
  (1) the Adviser or its affiliates;     
    
  (2) present or former officers, directors, trustees and employees (and their
      spouses, parents, children and siblings) of the Trust, the Adviser and its
      affiliates, and retirement plans established by them for their 
      employees;     
    
- ------------
/7/   See Glossary for a definition of Plan Assets.      

                                       20
<PAGE>
 
     
  (3) registered management investment companies, unit investment trusts, or
      separate investment accounts of insurance companies having an agreement
      with the Adviser or the Distributor for those purchases;     
    
  (4) dealers or brokers that have a sales agreement with the Distributor, if
      they purchase shares for their own accounts or for retirement plans for
      their employees;     
    
  (5) dealers, brokers, banks or registered investment advisers that have
      entered into an agreement with the Distributor providing specifically for
      the use of shares of the Fund in particular investment products made
      available to their clients (those clients may be charged a transaction fee
      by their dealer, broker or adviser for the purchase or sale of Fund
      shares); and     
    
  (6) deferred compensation plans or other Investors, in each case if those
      purchases are made through a broker or agent or other financial
      intermediary that has made special arrangements with the Distributor for
      those purchases.     
    
WAIVERS OF THE CLASS A CONTINGENT DEFERRED SALES CHARGE IN CERTAIN TRANSACTIONS.
Class A shares issued or purchased in the following transactions are not subject
to the Class A Contingent Deferred Sales Charge:     
    
  (1) shares issued in plans of reorganization, such as mergers;     
    
  (2) asset acquisitions and exchange offers to which any Fund is a party;     
    
  (3) shares purchased by the reinvestment of loan repayments by a participant
      in a retirement plan for which the Adviser or its affiliates acts as
      sponsor; and     
    
  (4) shares purchased by the reinvestment of dividends or other distributions
      reinvested from the Funds or unit investment trusts for which reinvestment
      arrangements have been made with the Distributor.     
    
WAIVERS OF THE CLASS A CONTINGENT DEFERRED SALES CHARGE FOR CERTAIN REDEMPTIONS.
The Class A Contingent Deferred Sales Charge is also waived if shares that would
otherwise be subject to the Class A Contingent Deferred Sales Charge are
redeemed in the following cases:     
    
  (1) involuntary redemptions of shares by operation of law;     
    
  (2) if, at the time of purchase of shares the dealer agrees in writing to
      accept the dealer's portion of the sales commission in installments of
      1/12th of the commission per month (and no further commission will be
      payable if the shares are redeemed within 12 months of purchase); and     
    
  (3) for distributions from Plans/8/ for any of the following purposes: (a)
      following the death or disability (as defined in the Code) of the
      participant or beneficiary (the death or disability must occur after the
      participant's account was established); (b) to return excess
      contributions; (c) to return contributions made due to a mistake of fact;
      (d) hardship withdrawals, as defined in the Plan; (e) under a Qualified
      Domestic Relations Order, as defined in the Code; (f) to meet the minimum
      distribution requirements of the Code; (g) to establish "substantially
      equal periodic payments" as described in Section 72(t) of the Code; (h)
      for retirement distributions or loans to participants or beneficiaries;
      (i) separation from service; (j) participant directed redemptions to
      purchase shares of a mutual fund (other than a fund managed by the Adviser
      or its subsidiaries) offered as an investment option in a Plan in which
      the Funds are also offered as investment options under a special
      arrangement with the Adviser or the Distributor; or (k) Plan termination
      or "in service distributions", if the redemption proceeds are rolled over
      directly to a Rollover IRA, the assets of which are invested in the 
      Trust.     
    
CLASS A SERVICE PLAN.  Pursuant to a Rule 12b-1 Plan adopted by the Trust. Class
A shares of each Fund pay a service fee at the annual rate of .25% of the Fund's
aggregate average net assets attributable to the Class A shares.  The Trust's
Adviser receives the service fees and may pay all or a portion of them to
brokers and other financial intermediaries, including the Distributor or
Sub-Distributor, for providing services to Investors in Class A shares.     
    
CLASS Y SHARES - NO SALES CHARGES     
    
Class Y shares of each Fund are not subject to front-end sales charges.
Therefore, 100% of an Investor's money is invested in the Fund or Funds of its
choice.  In addition, Class Y shares of each Fund are not subject to deferred
sales charges or to any distribution or service fees.     
    
CLASS S SHARES - NO SALES CHARGES     
    
SIAs purchase Class S shares directly from the Fund without a front-end sales
charge.  Therefore, 100% of an SIA Investor's money is invested in the Fund or
Funds of its choice.  In addition, Class S shares of each Fund are not subject
to any deferred sales charges or any distribution or service fees.     


- ----------------
/8/ See Glossary for a definition of Plans.

                                       21
<PAGE>
 
PURCHASE OF SHARES
    
Shares of the Trust are offered on each day the New York Stock Exchange ("NYSE")
is open for trading (a "Business Day").  Purchase orders received by the
Transfer Agent from MassMutual (as servicing agent of the Distributor) on a
Business Day prior to the close of the NYSE (normally, 4:00 p.m. Eastern Time)
will be processed based on that day's closing net asset value.     
    
Plan Investors purchasing group annuity contracts from MassMutual which have one
or more of the Funds as investment options under their Plans ("Group Annuity
Investors") and Rollover IRAs must place their purchase orders with MassMutual
(as servicing agent of the Distributor) at its home office and must be
accompanied by sufficient funds. Acceptable methods of payment include checks,
federal funds wires, and automated clearing house transactions ("ACH").
MassMutual, on behalf of the Distributor, will not transmit a purchase order to
the Trust's Transfer Agent until MassMutual has determined that the purchase
order is in good form. Generally, a purchase order will be determined by
MassMutual to be in good form if such order: (1) includes all information and
documentation necessary to make appropriate Investor, Plan, trustee and/or Plan
Participant (if applicable) allocations to the various Funds and/or other 
investment options under the Plan and (2) is received by MassMutual at its home
office prior to the close of the NYSE. Purchase orders by wire will be in good
form only upon receipt by MassMutual of: (1) immediately available funds,
deposited to the appropriate MassMutual account; and (2) a confirmation of the
wire receipt. Any order to purchase Fund shares which is received by MassMutual
after the close of the NYSE on a Business Day will be transmitted to the Trust's
Transfer Agent on the next Business Day. For more specific information regarding
what information and documentation are necessary for MassMutual to determine
that a purchase order is in good form with respect to a particular plan, Plan
Investors should refer to Plan Documents./9/    

   
For non-qualified deferred compensation plans eligible to purchase Class Y 
shares that have entered into an administrative services agreement with the 
Adviser, Class Y shares will be purchased directly by the Plan's trustee 
pursuant to the terms of the administrative services agreement. Investors Bank &
Trust Company may serve as a Plan's trustee under the terms of the 
administrative services agreement. Other Investors eligible to Purchase Class A 
and Class Y shares that have entered into an administrative services or other 
agreement with the Adviser must place purchase orders in accordance with the 
terms of such administrative services or other agreement. All other Investors 
must place purchase orders with the Distributor unless the Investor has entered 
into an agreement permitting direct purchases from the Trust.      

The sale of Trust shares will be suspended during any period when the
determination of net asset value is suspended.  The sale of Trust shares also
may be suspended by the Board of Trustees whenever the Board determines that it
is in the Trust's best interest to do so.  The Trust, in its complete
discretion, may reject any order for purchase of its shares.

EXCHANGE PRIVILEGES AND PROCEDURES
    
Investors have the privilege of exchanging shares of one Fund for the same class
of shares of another Fund, subject to the provisions of Plan Documents and
applicable state insurance laws.  However, exchanges may be restricted or
refused by a Fund if, in the opinion of the Adviser: (1) an Investor has engaged
in excessive trading; (2) the Fund receives or anticipates simultaneous orders
affecting significant portions of the Fund's assets; or (3) a pattern of
exchanges coincides with a "market timing" strategy that might be disruptive to
the Fund.  Each Fund also reserves the right to refuse exchange purchases by any
person or group of persons, if, in the Adviser's judgment, the Fund would be
unable to invest the funds effectively in accordance with its investment
objectives and policies, or otherwise potentially would be adversely affected.
The Trust reserves the right on 60 days' written notice to modify or terminate
the exchange privilege.  Furthermore, any exchange limits imposed by a Fund may
be modified, in the sole discretion of the Fund, for Plan Investors so that the
Fund's exchange privileges are consistent with Plan or group annuity contract
exchange limits as set forth in Plan Documents and Department of Labor
regulations.  Plan Investors and Plan Participants should refer to Plan
Documents and related materials to determine what, if any, exchange limitations
apply to them.     
    
For Group Annuity Investors and Rollover IRAs, exchange requests must be
delivered to MassMutual at its home office. An Investor that has entered into an
administrative services or other agreement with the Adviser must deliver
exchange requests in good form pursuant to the terms of its administrative
services or other agreement. All other Investors must deliver exchange requests
in good form to the Distributor,or the Trust if the Investor has entered into an
agreement permitting direct purchases form the Trust.    
    
Any exchange will involve the redemption of shares and the purchase of shares in
another Fund on the basis of the next calculated net asset value per share of
each Fund after the exchange request is received by the Transfer Agent. Exchange
requests will not be transmitted to the Transfer Agent until determined to be in
good form./10/    

         

REDEEMING SHARES
    
For Group Annuity Investors and Rollover IRAs, Redemption requests must be 
sent to MassMutual at its home office. An Investor that has entered into an 
administrative services or other agreement with the Adviser must deliver 
redemption requests in good form pursuant to the terms of its administrative 
services or other agreement. All other Investors must deliver redemption 
requests in good form to the Distributor, or the Trust if the Investor has 
entered into an agreement permitting direct purchases from the Trust.     

    
Each Fund redeems its shares at their net asset value as next computed after
receipt by the Transfer Agent of a request for redemption.     


- ---------------
    
/9/  See the Glossary for a definition of Plan Documents.
/10/ See "Purchase of Shares" above for a discussion of the term "in good 
     form."     

                                       22
<PAGE>
 
    
Redemption requests will not be transmitted to the Trust's Transfer Agent until
determined to be in good form. Redemption payments will be made within seven
days after receipt of the written request therefor by the Trust, except that the
right of redemption may be suspended or payments postponed when permitted by
applicable law and regulations. When redemption is requested of shares recently
purchased by check, payment may be delayed until the check has been collected,
which may take up to 15 days from receipt of the check.     

         

    
The Class A Contingent Deferred Sales Charge may be imposed on certain
redemptions of Class A shares.  For information regarding the Class A Contingent
Deferred Sales Charge, see "Class A Shares - Sales Charges and 12b-1 Fees"
above.     

INVESTMENT MANAGER AND SUB-ADVISERS

INVESTMENT MANAGER
    
MassMutual is the investment manager to the Funds and is responsible for
providing all necessary investment management and administrative services.
MassMutual is a mutual life insurance company organized in 1851 under the laws
of The Commonwealth of Massachusetts.  MassMutual is licensed to transact a life
insurance and annuity business in all states of the United States, the District
of Columbia, Puerto Rico and certain Provinces of Canada.  As of June 30, 1997,
MassMutual had consolidated assets in excess of $58.3 billion and consolidated
assets under management in excess of $139 billion, in each case based on
financial statements prepared in accordance with statutory accounting.     

The persons responsible for management of the bond and money market portfolios
of MassMutual are also responsible for managing such investments of the Funds.
Gary E. Wendlandt, Chairman, CEO and Trustee of the Trust, and John V. Murphy,
Trustee of the Trust, are officers of MassMutual, as are Stuart H. Reese,
President of the Trust, Hamline C. Wilson, Vice President and Chief Accounting
and Financial Officer of the Trust, Stephen L. Kuhn, Vice President and
Secretary of the Trust, and Raymond B. Woolson, Treasurer of the Trust.
MassMutual serves as investment manager of each Fund pursuant to a separate
investment management agreement pursuant to which MassMutual is responsible for
providing investment management of the Fund and is authorized to engage in
portfolio transactions on behalf of the Fund, subject to such general or
specific instructions as may be given by the Board of Trustees of the Trust.
MassMutual may, at its expense, employ sub-advisers to manage the investments of
the Funds.

The Trust, on behalf of each Fund, pays MassMutual an investment advisory fee
monthly for the investment advisory services performed and the facilities
furnished at an annual rate of the average daily net assets of that Fund as
follows:

(1) .45% for the Prime Fund, the Short-Term Bond Fund, the Core Bond Fund, the
    Balanced Fund and the Value Equity Fund.

(2) .55% for the Small Cap Value Equity Fund.

(3) .85% for the International Equity Fund.
    
For the fiscal year ended December 31, 1996, MassMutual received fees (after
giving effect to a fee waiver) based upon each Fund's average daily net assets,
as follows:  Prime Fund .41%; Short-Term Bond Fund .41%; Core Bond Fund .41%;
Balanced Fund .41%; Value Equity Fund .40%; Small Cap Value Equity Fund .51%;
International Equity Fund .78%. The fee waiver terminated on May 1, 1997.     
    
In addition, MassMutual has entered into a separate administrative services
agreement with each Fund pursuant to which MassMutual is obligated to provide
all necessary administrative and shareholder services and to bear some Class
expenses, such as federal and state registration fees, printing and postage.
The Funds are responsible for certain other expenses including brokerage, taxes,
interest, fees and expenses of non-interested trustees, legal fees, custody and
audit fees.  MassMutual may, at its expense, employ others to supply all or any
part of the services to be provided to the Funds pursuant to the administrative
services agreements.  The Trust, on behalf of each Fund, pays MassMutual an
administrative services fee monthly for the administrative services performed at
annual rates of the average daily net assets of the applicable class of shares
of the Fund which range from .4752% to .4875% for Class A shares, .2752% to
 .2875% for Class Y shares and .0774% to .0777% for Class S shares. Refer to
"Expense Information" for more detailed information.     

INVESTMENT SUB-ADVISERS

MassMutual has entered into investment sub-advisory agreements with Babson and
HarbourView.  These agreements provide that (1) Babson will manage the
investment and reinvestment of the assets of the Value Equity Fund, the Small
Cap Value Equity Fund and the Value Equity Sector of the Balanced Fund, and (2)
HarbourView will manage the investment and reinvestment of the assets of the
International Equity Fund.

MassMutual pays Babson a fee equal to an annual rate of .13% of the average
daily net asset value of the Value Equity Fund, .13% of the average daily net
asset value of the Value Equity Sector of the Balanced Fund and .25% of the
average daily net asset value of the Small Cap Value Equity Fund.  MassMutual
pays HarbourView a fee equal to an annual rate of 

                                       23
<PAGE>
 
 .50% of the average daily net asset value of the International Equity Fund.
    
Babson is a wholly-owned subsidiary of DLB Acquisition Corporation,
a controlled subsidiary of MassMutual. Babson is a registered
investment adviser that has been providing investment counseling to institutions
and individuals for over 50 years. As of December 31, 1996, Babson had over $7.6
billion of assets under management. Babson serves as investment sub-adviser to
the MML Equity Fund and the Equity Sector of MML Blend Fund of MML Series
Investment Fund, a registered investment company managed by MassMutual.     
    
HarbourView is a wholly-owned subsidiary of OppenheimerFunds, Inc. ("OFI"),
which is a wholly-owned subsidiary of Oppenheimer Acquisition Corporation, a
holding company owned in part by senior management of OFI and ultimately
controlled by MassMutual.  HarbourView has operated as an investment adviser
since 1986.  As of April 10, 1997, HarbourView managed assets of approximately
$700 million, including assets of the International Equity Fund and certain
separate investment accounts of MassMutual.     

DISTRIBUTOR, TRANSFER AGENT, SHAREHOLDER SERVICING AGENT, CUSTODIAN
    
OppenheimerFunds Distributor, Inc. ("Oppenheimer") acts as Distributor to each
Fund. MML Investors Services, Inc. ("MMLISI") serves as Sub-Distributor for each
Fund. Investors Bank & Trust Company serves as each Fund's Sub-Administrator,
Transfer Agent, and Custodian. MassMutual ultimately has a controlling interest
in Oppenheimer. MMLISI is a wholly-owned subsidiary of MassMutual. Both
Oppenheimer and MMLISI may serve as distributors of securities issued by other
investment companies. As Custodian, Investors Bank & Trust Company has custody
of the Funds' securities, maintains certain financial and accounting books and
records, and generally assists in all aspects of the administration of the
Funds. Neither Oppenheimer, MMLISI nor Investors Bank & Trust Company assists in
or is responsible for the investment decisions and policies of the Funds.     
    
CONTROL PERSON AND PRINCIPAL HOLDER OF SECURITIES     
    
MassMutual may be deemed a control person of the Trust in that certain separate
investment accounts of MassMutual and the Trust's seed money provided by
MassMutual together constitute 100% of the shares of each class of each Fund of
the Trust as of September 30, 1997.    

DESCRIPTION OF SHARES

The Trust is a series company which is authorized to issue shares in separate
series of multiple classes.  The Trust may issue an unlimited number of shares
of multiple classes, in one or more series as the Trustees may authorize, with
or without par value as the Trustees may prescribe.  Each share of a particular
class of a Fund represents an equal proportionate interest in that Fund with
each other share of the same class, none having priority or preference over
another.  Each Fund is preferred over all other Funds in respect of the assets
allocated to that Fund.  Each share of a particular class of a Fund is entitled
to a pro rata share of any distributions declared in respect of that class and,
in the event of liquidation, a pro rata share of the net assets of that class
remaining after satisfaction of outstanding liabilities.  When issued, shares
are fully paid and nonassessable and have no preemptive or subscription rights.
Under the Trust's Declaration of Trust, the Board of Trustees is authorized to
create new series and classes without shareholder approval.  Shares of each Fund
entitle their holder to one vote for each dollar (or proportionate fractional
vote for each fraction of a dollar) of net asset value per share of each Fund or
class for each share held as to any matter on which such shares are entitled to
vote.
    
The Trust is not required to hold annual meetings of shareholders.  Special
meetings may be called for such purposes as electing Trustees, voting on
management agreements, and with respect to such additional matters relating to
the Trust as may be required by the Trust's Declaration of Trust and the 1940
Act.  Shareholder inquiries should be directed to MassMutual Institutional
Funds, 1295 State Street, Springfield, Massachusetts 01111-0001.     

HOW FUND SHARES ARE PRICED
    
The net asset value (closing price) of each Fund is determined once daily as of
the close of trading on the NYSE (currently 4:00 p.m. Eastern Time) on each day
on which the Exchange is open for trading.  Net asset value for shares of a
class is determined by dividing the total market value of a Fund's portfolio
investments and other assets attributable to that class, less any liabilities,
by the total outstanding shares of the class.     
    
Securities which are traded on a national securities exchange or on the NASDAQ
national market system generally are valued at the last sale price.  Debt
securities normally are valued at the last reported bid price on the primary
market for those securities.  To the extent authorized by the Board of Trustees,
portfolio securities may be valued by a pricing service that determines values
based on market transactions for normal institutional-size trading units.  Money
market obligations having a maturity of 60 days or less are generally valued at
amortized cost when the Board of Trustees of the Trust believes that amortized
cost approximates market value.  In all other cases, assets and other securities
for which no quotations are readily available (including some restricted
securities) are valued at fair value as determined in good faith by the Board of
Trustees, although the actual calculations may be made by persons acting
pursuant to the direction of the Board.     
    
A dealer or other organization selling shares of the Funds may receive different
levels of compensation for selling one class      

                                       24
<PAGE>
 
     
of shares over another. Class A shares of the Funds, which may be purchased at
the net asset value per share next determined after receipt of a purchase
request in good order, are subject to the service fees under Rule 12b-1, as set
forth and expressed on an annual basis under "Expense Information".    

         

    
MassMutual may directly, or through the Distributor, pay cash compensation to 
registered representatives who are not employees of MassMutual who sell Class A
and Y shares of the Funds. A registered representative selling Class A shares 
may receive: (1) compensation in the first year in an amount equal to 1% of all 
first year contributions; and (2) in each subsequent year, annual compensation 
in an amount equal to 0.25% of the amount invested. A registered representative 
selling Class Y shares to Investors, other than in connection with certain 
non-qualified deferred compensation plans, may receive annual compensation in an
amount equal to: (1) 0.10% of the amount invested if the investment is equal to 
or less than $10 million; or (2) if the investment exceeds $10 million, the sum 
of 0.10% of the first $10 million invested and 0.05% on amounts in excess of $10
million. In connection with the sale of Class y shares to non-qualified deferred
compensation plans that enter into an administrative services agreement with the
Adviser, additional compensation may be paid. In such cases, the aggregate 
annual compensation will be in an amount equal to 0.25% of the amount invested. 
Annual compensation paid on account of sales of Class A and Class Y shares will 
be paid quarterly, in arrears.     

DISTRIBUTIONS AND TAXATION
    
Each Fund intends to continue to qualify as a regulated investment company under
Subchapter M of the Internal Revenue Code of 1986 (the "Code").  As a regulated
investment company, a Fund will not be subject to Federal income taxes on its
ordinary income and net realized capital gain distributed to its shareholders.
In general, a Fund that fails to distribute at least 98% of such income and gain
in the calendar year in which earned will be subject to a 4% excise tax on the
undistributed amount.     
    
Many Investors, including most tax qualified Plan Investors, may be eligible for
preferential federal income tax treatment on distributions received from a Fund
and dispositions of Fund shares. This Prospectus does not attempt to describe in
any respect such preferential tax treatment. Any prospective Investor that is a
trust or other entity eligible for special tax treatment under the Code that is
considering purchasing shares of a Fund, either directly or indirectly through a
life insurance company separate investment account, should consult its tax
advisers about the federal, state and local tax consequences particular to it,
as should persons considering whether to have amounts held for their benefit by
such trusts or other entities invested in shares of a Fund. Investors that do
not receive preferential tax treatment are subject to federal income taxes on
distributions received in respect of their shares. Distributions of the Fund's
ordinary income and shortterm capital gains are taxable to the shareholder as
ordinary income whether received in cash or additional shares. Designated long-
term capital gains distributions are taxable as long-term capital gain whether
distributed in cash or additional shares and regardless of how long the Investor
has owned shares of the Fund; however, a loss recognized from the sale of Fund
shares held for six months or less will be treated as a long-term capital loss
to the extent of long-term capital gains distributions. Under the Taxpayer
Relief Act of 1997, long-term capital gains generally will be subject to a 28%
or 20% tax rate, depending on the holding period in the portfolio investments.
Certain designated dividends may be eligible for the dividends-received
deduction for corporate shareholders. Investors should consult with their tax
advisers for additional information concerning the federal, state and local tax
consequences of purchasing shares of a Fund.     
    
Dividends from net investment income and distributions of any net realized
capital gains of each Fund are declared and paid annually or at other times as
necessary to meet regulatory requirements.  Distributions shall be paid in full
and fractional shares of the applicable Class of the applicable Fund at net
asset value on the first Business Day after the record date for the
distribution, unless, subject to such terms and conditions of any underlying
Plan Documents or any administrative services or other agreement with the
Adviser, the Investor has elected to receive dividend payments in cash.     

INVESTMENT PERFORMANCE

The Trust commenced operations on October 3, 1994 subsequent to the transfer of
assets by each of seven SIAs to the Fund having corresponding investment
objectives, policies and limitations in exchange for shares of such Fund.  While
the SIAs continue to exist, their assets consist solely of shares of the
corresponding Fund.  Except for the seed capital provided by MassMutual, each
Fund's portfolio of investments on October 3, 1994 was the same as the portfolio
of the corresponding SIA immediately prior to the transfer.
    
The SIAs are not registered investment companies as they each are exempt from
registration under the 1940 Act.  Since, in a practical sense, the SIAs
constitute "predecessors" of the Funds, the Trust calculates the performance
for each Class of each Fund for periods commencing prior to the transfer of the
SIA assets to the Funds by including the corresponding SIA's total return
adjusted to reflect the deduction of fees and expenses applicable to each Class
as set forth (1) in the case of Class A and Class Y shares, under "Expense
Information," and (2) in the case of Class S shares, in the Fee Table of the
Trust's initial prospectus which was effective October 3, 1994. The anticipated 
expenses of the Class S shares of each Fund as set forth in the Trust's initial 
prospectus were as follows: 0.516% for the Prime Fund; 0.519% for the Short-Term
Bond Fund; 0.513% for the Core Bond Fund; 0.512% for the Balanced Fund; 0.5067%
for the Value Equity Fund; 0.611% for the Small Cap Value Equity Fund; and
1.002% for the International Equity Fund. These fees and expenses include, in
the case of Class A shares, Rule 12b-1 fees and contingent deferred sales
charges, and in the case of Class S shares, any charges at the SIA level.     
    
Performance data for Class A and Class Y shares for the period from October 3,
1994 until the date on which such class is initially offered for sale will be
based on the performance of Class S shares adjusted downward to take into
account the deduction of the higher operating expenses to which Class A and
Class Y shares are subject. All performance data reflects the management fee
waiver in effect for Class S shares through May 1, 1997.    
    
The quoted performance data includes the performance of the SIAs for periods
before the Trust's Registration Statement became effective.  As noted above, the
SIAs were not registered under the 1940 Act and thus were not subject to certain
investment restrictions that are imposed by the 1940 Act.  If the SIAs had been
registered under the 1940 Act, the SIAs performance      

                                       25
<PAGE>
 
     
might have been adversely affected. Employee benefit plans that invest plan
assets in the SIAs may be subject to certain charges as set forth in their
respective Plan Documents. Investors that enter into an administrative services
or other agreement with the Adviser may also be subject to certain charges as
set forth in their respective agreements. Total return figures would be lower if
they reflected these charges.    
    
Each of the Funds from time to time may advertise certain investment performance
figures.  These figures are based on historical earnings but past performance
data is not necessarily indicative of future performance of the Funds.  All
performance information with respect to Class S shares will be provided net of
the Fund and any SIA expenses.  Each of the Funds may quote yield in conformance
with current Securities and Exchange Commission guidelines.  Currently, the
yield for each Fund refers to the net investment income earned by the Fund over
a 30-day period, as defined in the advertisement. This income is then assumed to
be earned for a full year and to be reinvested each month for six months. The
resulting semi-annual yield is doubled.     

Each of the Funds may advertise its total return and its holding period return
for various periods of time.  Total return is calculated by determining, over a
period of time as stated in the advertisement, the average annual compounded
rate of return that an investment in the Fund earned over that period, assuming
reinvestment of all distributions.  Holding period return refers to the
percentage change in the value of an investment in a Fund over a period of time
(as stated in the advertisement), assuming reinvestment of all distributions.
    
Total return and holding period return differ from yield in that the return
figures include capital changes in an investment while yield measures the rate
of net income generated by a Fund. Total return differs from holding period
return principally in that total return is an average annual figure while
holding period return is an aggregate figure for the entire period.     

                                       26
<PAGE>
 
     
Average Annual Total Return for the periods ended December 31, 1996. All returns
- ---------------------------                                                     
take into account the Adviser's voluntary fee waiver, which is described in the
"Financial Highlights" and which terminated on May 1, 1997.     

<TABLE>    
<CAPTION>

- ------------------------------------------------------------------------------------------------ 
                                              1 YEAR
- ------------------------------------------------------------------------------------------------  
- ------------------------------------------------------------------------------------------------  
                                                                 Class A   Class Y   Class S
<S>                                                             <C>       <C>       <C>
Prime Fund and its predecessor SIA G                               3.59%     5.04%     5.24%
Short-Term Bond Fund and its predecessor SIA F                     3.92%     5.37%     5.57%
Core Bond Fund and its predecessor SIA E                           1.14%     2.59%     2.80%
Balanced Fund and its predecessor SIA M                           11.17%    12.62%    12.83%
Value Equity Fund and its predecessor SIA A                       18.58%    20.03%    20.24%
Small Cap Value Equity Fund and its predecessor SIA S             21.16%    22.61%    22.82%
International Equity Fund and its predecessor SIA I               16.86%    18.31%    18.51%
- ------------------------------------------------------------------------------------------------ 

<CAPTION>

- ------------------------------------------------------------------------------------------------  
                                             3 YEARS 
- ------------------------------------------------------------------------------------------------  
- ------------------------------------------------------------------------------------------------  
                                                                 CLASS A   CLASS Y   CLASS S
<S>                                                             <C>       <C>       <C>
Prime Fund and its predecessor SIA G                               4.36%     4.81%     5.01%
Short-Term Bond Fund and its predecessor SIA F                     4.67%     5.12%     5.32%
Core Bond Fund and its predecessor SIA E                           4.85%     5.30%     5.51%
Balanced Fund and its predecessor SIA M                           11.26%    11.71%    11.92%
Value Equity Fund and its predecessor SIA A                       17.42%    17.87%    18.08%
Small Cap Value Equity Fund and its predecessor SIA S             11.44%    11.89%    12.10%
International Equity Fund and its predecessor SIA I                5.15%     5.60%     5.80%
- ------------------------------------------------------------------------------------------------ 

<CAPTION>

- ------------------------------------------------------------------------------------------------  
                                             5 YEARS 
- ------------------------------------------------------------------------------------------------  
- ------------------------------------------------------------------------------------------------  
                                                                 CLASS A   CLASS Y   CLASS S
<S>                                                             <C>       <C>       <C>
Prime Fund and its predecessor SIA G                               3.69%     4.14%     4.34%
Short-Term Bond Fund and its predecessor SIA F                     5.45%     5.90%     6.10%
Core Bond Fund and its predecessor SIA E                           6.30%     6.75%     6.96%
Balanced Fund and its predecessor SIA M                           10.08%    10.53%    10.74%
Value Equity Fund and its predecessor SIA A                       14.14%    14.59%    14.80%
Small Cap Value Equity Fund and its predecessor SIA S             12.82%    13.27%    13.48%
International Equity Fund and its predecessor SIA I               12.42%    12.87%    13.07%
- ------------------------------------------------------------------------------------------------ 

<CAPTION>

- ------------------------------------------------------------------------------------------------  
                                    10 YEARS (or since inception) 
- ------------------------------------------------------------------------------------------------  
- ------------------------------------------------------------------------------------------------  
                                                                 CLASS A   CLASS Y   CLASS S
<S>                                                             <C>       <C>       <C>
Prime Fund and its predecessor SIA G                               5.25%     5.70%     5.90%
Short-term Bond Fund and its predecessor SIA F (April 30, 1989)    6.88%     7.33%     7.53%
Core Bond Fund and its predecessor SIA E                           7.57%     8.02%     8.23%
Balanced Fund and its predecessor SIA M (October 10, 1987)        10.88%    11.33%    11.54%
Value Equity Fund and its predecessor SIA A                       13.10%    13.55%    13.76%
Small Cap Value Equity Fund and its predecessor SIA S             13.55%    14.00%    14.21%
International Equity Fund and its predecessor SIA I (July 31,                         
 1991)                                                            12.40%    12.85%    13.05%
- ------------------------------------------------------------------------------------------------ 
</TABLE>     

The quoted performance data includes the performance of the Separate Investment
Accounts (SIAs) for the period before the Trust's Registration Statement became
effective.  The SIAs were not registered under the 1940 Act and therefore were
not subject to certain investment restrictions imposed by the Act.  If the SIAs
had been registered under the 1940 Act, their performance may have been
adversely affected.

                                       27
<PAGE>
 
GLOSSARY

CURRENCY TRANSACTIONS: include forward currency contracts, exchange listed
currency futures, exchange listed and OTC options on currencies, and currency
swaps.  A forward currency contract involves a privately negotiated obligation
to purchase or sell (with delivery generally required) a specific currency at a
future date, which may be any fixed number of days from the date of the contract
agreed upon by the parties, at a price set at the time of the contract.  A
currency swap is an agreement to exchange cash flows based on the notional
difference among two or more currencies and operates similarly to an interest
rate swap.
    
DURATION: indicates how interest rate changes will affect a debt instrument's
price.  As a measure of a fixed-income security's cash flow, duration is an
alternative to the concept of "term to maturity" in assessing the price
volatility associated with changes in interest rates.  Generally, the longer the
duration, the more volatility an investor should expect.  For example, the
market price of a bond with a duration of two years would be expected to decline
2% if interest rates rose 1%.  Conversely, the market price of the same bond
would be expected to increase 2% if interest rates fell 1%.  The market price of
a bond with a duration of four years would be expected to increase or decline
twice as much as the market price of a bond with a two-year duration.  Duration
measures a security's maturity in terms of the average time required to receive
the present value of all interest and principal payments as opposed to its term
to maturity.  The maturity of a security measures only the time until final
payment is due; it does not take account of the pattern of a security's cash
flow over time, which would include how cash flow is affected by prepayments and
by changes in interest rates.  Incorporating a security's yield, coupon interest
payments, final maturity and option features into one measure, duration is
computed by determining the weighted average maturity of a bond's cash flows,
where the present values of the cash flows serve as weights.  Determining
duration may involve the Adviser's estimates of future economic parameters,
which may vary from actual future values.     

FOREIGN SECURITIES: include debt, equity, and hybrid instruments, obligations
and securities of foreign issuers, including governments of countries other than
the United States and companies organized under the laws of countries other than
the United States that are traded on foreign securities exchanges or foreign
over-the-counter markets.  Foreign securities also include securities of foreign
issuers (i) represented by American Depository Receipts, (ii) traded in the
United States over-the-counter markets, or (iii) listed on a U.S. securities
exchange.
    
INVESTOR: includes a plan sponsor, plan fiduciary, trustee, institutional
investor, insurance company separate investment account and/or any other person
or entity described in the Prospectus as an eligible purchaser of shares, that
purchases shares of the Trust and is hereinafter referred to as Investor or
collectively referred to as Investors.  An Investor that is a separate
investment account of MassMutual is referred to as an SIA Investor to the extent
it invests in the Trust.  Investors that are purchasing shares of a Fund on
behalf of a Plan are sometimes referred to as Plan Investors.  The term Investor
does not include a Plan Participant.     

NRSRO: means a nationally recognized statistical rating organization.  For a
description of the ratings of two NRSROs, Standard & Poor's Ratings Group
("S&P") and Moody's Investors Service, Inc. ("Moody's"), see Appendix A to the
Statement of Additional Information.  For example, the four investment grade
ratings in descending order for debt securities as rated by Moody's are Aaa, Aa,
A and Baa -- including Baa3.  The four investment grade ratings for debt
securities as rated by S&P are AAA, AA, A and BBB -- including BBB-.  For
commercial paper, Moody's two highest ratings are P-1 and P-2 and S&P's two
highest ratings are A-1 and A-2.
    
PLAN: refers to all defined contribution and defined benefit retirement plans
and any other employee retirement arrangement that invests in the Funds,
including non-qualified deferred compensation plans and tax sheltered annuity
plans.     
    
PLAN ASSETS: assets held by the Plan trustee of a particular Plan.     
    
PLAN PARTICIPANT: includes active, deferred and suspended Plan Participants on
whose behalf Plan Assets are invested, as well as any other individual included
in the computation of active participants under the appropriate Form 5500 filed
with the Internal Revenue Service, if applicable.     
    
PLAN DOCUMENTS: refer to the documents that created and are related to a
particular employee retirement benefit plan.  These documents might include
trust documents, insurance contracts (including group annuity contracts),
administrative service agreements and other agreements providing for the
provision of services or benefits for the plan and its participants.     
    
U.S. GOVERNMENT SECURITIES: include obligations issued, sponsored, assumed or
guaranteed as to principal and interest by the Government of the United States,
its agencies and instrumentalities, and securities backed by such obligations,
including FHA/VA guaranteed mortgages.     
    
THE NAME MASSMUTUAL INSTITUTIONAL FUNDS IS THE DESIGNATION OF THE TRUST UNDER A
DECLARATION OF TRUST DATED MAY 28, 1993, AS AMENDED. THE OBLIGATIONS OF SUCH
TRUST ARE NOT PERSONALLY BINDING UPON, NOR SHALL RESORT BE HAD TO THE PROPERTY
OF, ANY OF THE TRUSTEES, SHAREHOLDERS, OFFICERS, EMPLOYEES OR AGENTS OF SUCH
TRUST, BUT ONLY THE PROPERTY OF THE RELEVANT FUND SHALL BE BOUND.     

                                       28
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                               1295 State Street
                       Springfield, Massachusetts 01111


                              INVESTMENT MANAGER

                           MASSACHUSETTS MUTUAL LIFE
                               INSURANCE COMPANY
                               1295 State Street
                       Springfield, Massachusetts 01111


                            INVESTMENT SUB-ADVISERS

                   HARBOURVIEW ASSET MANAGEMENT CORPORATION
                            Two World Trade Center
                           New York, New York 10048

                       DAVID L. BABSON AND COMPANY, INC.
                              One Memorial Drive
                        Cambridge, Massachusetts 02142


                                  DISTRIBUTOR

                      OPPENHEIMERFUNDS DISTRIBUTOR, INC.
                            Two World Trade Center
                           New York, New York 10048

    
                                SUB-DISTRIBUTOR

                         MML INVESTORS SERVICES, INC.
                               1414 Main Street
                       Springfield, Massachusetts 01144     


                       SUB-ADMINISTRATOR, TRANSFER AGENT
                                 and CUSTODIAN

                        INVESTORS BANK & TRUST COMPANY
                             200 Clarendon Street
                         Boston, Massachusetts 02116


                            INDEPENDENT ACCOUNTANTS
    
                           COOPERS & LYBRAND L.L.P.
                             2300 Bay Bank Tower, 
                             1500 Main Street     
                       Springfield, Massachusetts 01101


                                 LEGAL COUNSEL

                                 ROPES & GRAY
                            One International Place
                         Boston, Massachusetts 02110

                                       29
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                               1295 State Street
                        Springfield, Massachusetts 01111

                    
                PRELIMINARY STATEMENT OF ADDITIONAL INFORMATION      

                             DATED OCTOBER 1, 1997

    
THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT A PROSPECTUS. IT SHOULD BE READ
IN CONJUNCTION WITH THE PROSPECTUS OF MASSMUTUAL INSTITUTIONAL FUNDS (THE
"TRUST") DATED NOVEMBER [ ], 1997 (THE "PROSPECTUS"). TO OBTAIN A PROSPECTUS,
CALL YOUR REGISTERED REPRESENTATIVE, AT (413) 788-8411, OR WRITE THE TRUST.     

No dealer, salesman or any other person has been authorized to give any
information or to make any representations, other than those contained in this
Statement of Additional Information or in the related Prospectus, in connection
with the offer contained herein, and, if given or made, such other information
or representation must not be relied upon as having been authorized by the Trust
or the Distributor. This Statement of Additional Information and the related
Prospectus do not constitute an offer by the Trust or by the Distributor to sell
or a solicitation of any offer to buy any of the securities offered hereby in
any jurisdiction to any person to whom it is unlawful to make such offer in such
jurisdiction.

This Statement of Additional Information relates to the following Funds:

     .  MassMutual Prime Fund
     .  MassMutual Short-Term Bond Fund
     .  MassMutual Core Bond Fund
     .  MassMutual Balanced Fund
     .  MassMutual Value Equity Fund
     .  MassMutual Small Cap Value Equity Fund
     .  MassMutual International Equity Fund

    
INFORMATION CONTAINED HEREIN PERTAINING TO THE CLASS A AND CLASS Y SHARES (THE 
"PENDING SECURITIES") IS SUBJECT TO COMPLETION OR AMENDMENT. A REGISTRATION
STATEMENT RELATING TO, AMONG OTHER THINGS, THE PENDING SECURITIES HAS BEEN FILED
WITH THE SECURITIES AND EXCHANGE COMMISSION. THE PENDING SECURITIES MAY NOT BE
SOLD NOR MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION
STATEMENT BECOMES EFFECTIVE. THIS STATEMENT OF ADDITIONAL INFORMATION SHALL NOT
CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY NOR SHALL
THERE BE ANY SALE OF THE PENDING SECURITIES IN ANY STATE IN WHICH SUCH OFFER,
SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION
UNDER THE SECURITIES LAWS OF ANY SUCH STATE.     

    
DATED NOVEMBER [ ], 1997      

                                      B-1
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------
<TABLE>    
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                        <C>
GENERAL INFORMATION........................................................  B-3
ADDITIONAL INVESTMENT POLICIES.............................................  B-3
FUNDAMENTAL INVESTMENT RESTRICTIONS........................................  B-8
NON-FUNDAMENTAL INVESTMENT RESTRICTIONS..................................... B-9
MANAGEMENT OF THE TRUST.................................................... B-10
COMPENSATION............................................................... B-14
COMPENSATION TABLE......................................................... B-14
CONTROL PERSON AND PRINCIPAL HOLDERS OF SECURITIES......................... B-15
INVESTMENT MANAGER AND SUB-ADVISERS........................................ B-15
THE DISTRIBUTOR............................................................ B-18
CUSTODIAN, DIVIDEND DISTRIBUTING AGENT AND TRANSFER AGENT.................. B-18
INDEPENDENT PUBLIC ACCOUNTANT.............................................. B-19
PORTFOLIO TRANSACTIONS AND BROKERAGE....................................... B-19
SHAREHOLDER INVESTMENT ACCOUNT............................................. B-20
REDEMPTION OF SHARES....................................................... B-20
VALUATION OF PORTFOLIO SECURITIES.......................................... B-20
DESCRIPTION OF SHARES...................................................... B-21
INVESTMENT PERFORMANCE..................................................... B-21
TAXATION................................................................... B-22
EXPERTS.................................................................... B-24
APPENDIX - DESCRIPTION OF SECURITIES RATINGS............................... B-25
REPORT OF INDEPENDENT ACCOUNTANTS.......................................... B-27
AUDITED FINANCIAL STATEMENTS - DECEMBER 31, 1996........................... B-28
UNAUDITED FINANCIAL STATEMENTS - JUNE 30, 1997............................. B-87
</TABLE>     


                                      B-2
<PAGE>
 
                              GENERAL INFORMATION
                              -------------------

    
MassMutual Institutional Funds (the "Trust") is a professionally managed, open-
end investment company. This Statement of Additional Information describes the
following seven separate diversified series of the Trust: (1) MassMutual Prime
Fund, (2) MassMutual ShortTerm Bond Fund, (3) MassMutual Core Bond Fund, (4)
MassMutual Balanced Fund, (5) MassMutual Value Equity Fund, (6) MassMutual Small
Cap Value Equity Fund, and (7) MassMutual International Equity Fund (each
individually referred to as a "Fund" or collectively as the "Funds").     

The Trust is organized under the laws of The Commonwealth of Massachusetts as a
Massachusetts business trust pursuant to an Agreement and Declaration of Trust
dated May 28, 1993, as amended from time to time (the "Declaration of Trust").
Additional series may be created by the Trustees from time to time. The
investment manager for each Fund is Massachusetts Mutual Life Insurance Company
("MassMutual"). The investment sub-adviser for the Value Equity Fund, the Small
Cap Value Equity Fund and the Equity Sector of the Balanced Fund is David L.
Babson and Company, Inc. ("Babson"). The investment sub-adviser for the
International Equity Fund is HarbourView Asset Management Corporation
("HarbourView"). Babson and HarbourView are each indirect subsidiaries of
MassMutual. MassMutual, Babson and HarbourView are sometimes referred to herein
as the "advisers."

                        ADDITIONAL INVESTMENT POLICIES
                         ------------------------------

Each Fund has a distinct investment objective which it pursues through separate
investment policies, as described in the Prospectus and below. The investment
objective, fundamental investment policies and fundamental investment
restrictions of a Fund may not be changed without the vote of a majority of that
Fund's outstanding shares (which, under the Investment Company Act of 1940 (the
"1940 Act") and the rules thereunder and as used in this Statement of Additional
Information and in the Prospectus, means the lesser of (1) 67% of the shares of
that Fund present at a meeting if the holders of more than 50% of the
outstanding shares of that Fund are present in person or by proxy, or (2) more
than 50% of the outstanding shares of that Fund). The Board of Trustees of the
Trust may adopt new or amend or delete existing non-fundamental investment
policies and restrictions without shareholder approval.

The following discussion, when applicable, elaborates on the presentation of
each Fund's investment policies contained in the Prospectus. For a description
of the ratings of corporate debt securities and money market instruments in
which the various Funds may invest, reference should be made to the Appendix.

PRIME FUND

An instrument in which the Prime Fund may invest will be considered to be
short-term if its remaining maturity on the date of its purchase is 397 days or
less. In the case of a variable or floating rate obligation, the remaining
maturity will be deemed to be the period remaining until the next readjustment
of the interest rate or until maturity, whichever is less. In the case of an
obligation with a demand feature, the remaining maturity will be deemed to be
the period remaining until the principal amount may be recovered through the
demand provision or until the next readjustment of the interest rate or until
maturity, whichever is the shortest.

Certain money market instruments are available only in relatively large
denominations, and others may carry higher yields if purchased in relatively
large denominations. Also, it is believed by MassMutual that an institutional
purchaser of money market instruments who has the ability to invest relatively
large sums on a regular basis may have investment opportunities that are not
available to those who invest smaller sums less frequently. Certain of the Prime
Fund's investment restrictions limit the percentage of the Fund's assets which
may be invested in certain industries or in securities of any issuer.
Accordingly, if the Fund has relatively small net assets and net cash flow from
sales and redemptions of shares, the Fund may be unable to invest in money
market instruments paying the highest yield available at a particular time.

SHORT-TERM BOND FUND

The Fund's duration management strategy currently utilizes a quantitative,
risk-averse discipline that balances generating a high total rate of return
primarily from current income with minimizing fluctuations in capital values.
The duration of the portfolio will be lengthened by extending average maturities
when sufficient additional yield can 


                                      B-3
<PAGE>
 
be obtained. Conversely, the duration will be shortened when adequate
compensation for the additional risk associated with longer maturities cannot be
realized.

CORE BOND FUND

The Core Bond Fund's duration management strategy is to match (within 10%) the
duration of the Lehman Brothers Government/Corporate Bond Index. MassMutual
seeks to add value compared to this index through the use of sector rotation,
yield curve management and asset selection. Neither market timing nor interest
rate anticipation methods are employed in managing the Fund.

INTERNATIONAL EQUITY FUND

The Trustees are authorized to determine what constitutes a "foreign security"
and to modify any such definition as they deem appropriate.  Opportunities for
longterm capital appreciation will be stressed.
    
Currency Transactions - The Fund may, but will not necessarily, engage in
currency transactions with counterparties in order to hedge the value of
portfolio holdings denominated in particular currencies against fluctuations in
relative value.      

FIXED INCOME SECURITIES
    
While the Prime Fund invests in high quality securities and the Short-Term Bond
Fund, the Core Bond Fund and the Core Bond Sector of the Balanced Fund invest in
investment grade securities, an investment in these Funds is not without risk.
The debt securities in which the Funds invest may not offer as high a yield as
may be achieved from lower quality instruments having less safety. If the Prime
Fund, the ShortTerm Bond Fund or the Core Bond Fund dispose of an obligation
prior to maturity, it may realize a loss or a gain. An increase in interest
rates will generally reduce the value of portfolio investments, and a decline in
interest rates will generally increase the value of portfolio investments. In
addition, investments are subject to the ability of the issuer to make payment
at maturity. If an investment of the ShortTerm Bond Fund or the Core Bond Fund
is downgraded below investment-grade level, the adviser will normally dispose of
such security in a reasonable period of time. In special circumstances the
adviser may determine that it is in the Fund's best interest to continue to hold
the security.     

WARRANTS AND RIGHTS

A warrant typically gives the holder the right to purchase underlying stock at a
specified price for a designated period of time. Warrants may be a relatively
volatile investment. The holder of a warrant takes the risk that the market
price of the underlying stock may never equal or exceed the exercise price of
the warrant. A warrant will expire without value if it is not exercised or sold
during its exercise period. Rights are similar to warrants, but normally have a
short duration and are distributed directly by the issuer to its shareholders.
Warrants and rights have no voting rights, receive no dividends, and have no
rights to the assets of the issuer.

The Equity Sector of the Balanced Fund, the Value Equity Fund, the Small Cap
Value Equity Fund and the International Equity Fund may each invest up to 5% of
the value of their respective assets in warrants in an effort to build a
position in the underlying common stocks and, of such 5%, no more than 2% may be
invested in warrants that are not listed on the New York Stock Exchange or the
American Stock Exchange.

REPURCHASE AND REVERSE REPURCHASE AGREEMENTS

In a repurchase agreement transaction, a Fund acquires a security from, and
simultaneously resells it to, an approved vendor (a U.S. commercial bank or the
U.S. branch of a foreign bank, or a broker-dealer which has been designated a
primary dealer in government securities and which must meet the credit
requirements set by the Trust's Board of Trustees from time to time) for
delivery on an agreed-upon future date. The resale price exceeds the purchase
price by an amount that reflects an agreed-upon interest rate effective for the
period during which the repurchase agreement is in effect. The majority of these
agreements run from day to day, and delivery pursuant to the resale agreement
typically will occur within one to five days of the purchase. Repurchase
agreements are considered "loans" under the 1940 Act, collateralized by the
underlying security. A Fund's repurchase agreements require that at all times
while the repurchase agreement is in effect, the value of the collateral must
equal or exceed the repurchase price to fully collateralize the loan.
Additionally, a Fund's adviser will impose creditworthiness requirements to
confirm that the vendor is financially sound

                                      B-4
<PAGE>
 
and will continuously monitor the collateral's value. However, if the seller
defaults, the Fund could realize a loss on the sale of the underlying security.
In addition, if the seller should be involved in bankruptcy or insolvency
proceedings, the Fund may incur delay and costs in selling the underlying
security or may suffer a loss of principal and interest if the Fund is treated
as an unsecured creditor and required to return the underlying securities to the
seller's estate.

A reverse repurchase agreement is a contract pursuant to which a Fund agrees to
sell a security and simultaneously agrees to repurchase it at an agreed-upon
price at a stated time. A Fund engaging in reverse repurchase agreements will
maintain a segregated account with its custodian containing cash or liquid
securities, having a current market value at all times in an amount sufficient
to repurchase securities pursuant to outstanding reverse repurchase agreements.
Reverse repurchase agreements are borrowings subject to Restriction (2) under
"Fundamental Investment Restrictions."

CERTAIN DEBT SECURITIES

Some U.S. Government Securities are backed by the full faith and credit of the
U.S. Government; others are secured by the right of the issuer to borrow from
the U.S. Treasury; while others are supported only by the credit of the issuing
agency or instrumentality. There can be no assurance that the U.S. Government
will pay interest and principal on securities on which it is not legally
obligated to do so.

The Funds will limit their investments in certificates of deposit and bankers'
acceptances to U.S. dollar denominated obligations of U.S. banks and savings and
loan associations, London branches of U.S. banks ("Eurodollar obligations") and
U.S. branches of foreign banks ("Yankeedollar obligations"). In the case of
foreign banks, the $1 billion deposit requirement will be computed using
exchange rates in effect at the time of the banks' most recently published
financial statements. Eurodollar obligations and Yankeedollar obligations will
not be acquired if as a result more than 25% of a Fund's net assets would be
invested in such obligations. Obligations of foreign banks and of foreign
branches of U.S. banks may be affected by foreign governmental action, including
imposition of currency controls, interest limitations, withholding taxes,
seizure of assets or the declaration of a moratorium or restriction on payments
of principal or interest. Foreign banks and foreign branches of U.S. banks may
provide less public information than, and may not be subject to the same
accounting, auditing and financial recordkeeping standards as, domestic banks.

SECURITIES LENDING
    
A Fund may seek additional income by making loans of portfolio securities of not
more than 33% of its net assets taken at current market value. Under applicable
regulatory requirements and securities lending agreements (which are subject to
change), the loan collateral must, on each business day, be at least equal to
the value of the loaned securities and must consist of cash, bank letters of
credit or securities of the U.S. Government (or its agencies or
instrumentalities), or other cash equivalents in which the Fund is permitted to
invest. The terms of a Fund's loans must also meet certain tests under the
Internal Revenue Code and permit the Fund to reacquire loaned securities on five
business days' notice or in time to vote on any important matter.     

HEDGING INSTRUMENTS AND DERIVATIVES

The Funds currently may use the hedging instruments and derivatives discussed
below. In the future, a Fund may employ hedging instruments and strategies that
are not currently contemplated but which may be developed, to the extent such
investment methods are consistent with the Fund's investment objective, legally
permissible and adequately disclosed.

(1) FORWARD CONTRACTS -- Each Fund may purchase or sell securities on a forward
commitment basis ("forward contracts"). When such transactions are negotiated,
the price is fixed at the time of commitment, but delivery and payment for the
securities can take place a month or more after the commitment date. The
securities so purchased or sold are subject to market fluctuations and no
interest accrues to the purchaser during this period. At the time of delivery
the securities may be worth more or less than the purchase or sale price. While
a Fund also may enter into forward contracts with the initial intention of
acquiring securities for its portfolio, it may dispose of a commitment prior to
settlement if MassMutual deems it appropriate to do so. The Funds may realize
short-term gains or losses upon the sale of forward contracts. If a Fund enters
into a forward contract, it will establish a segregated account with its
custodian consisting of cash or liquid securities, having a current market value
equal to or greater than the aggregate amount of that Fund's commitment under
forward contracts (that is, the purchase price of the underlying


                                      B-5
<PAGE>
 
security on the delivery date). As an alternative to maintaining all or part of
the segregated account, a Fund could buy call or put options to "cover" the
forward contracts. A Fund will not enter into a forward contract if as a result
more than 25% of its total assets would be held in a segregated account covering
such contracts.
    
(2) CURRENCY TRANSACTIONS -- Each Fund may engage in currency transactions with
counterparties in order to convert foreign denominated securities or obligations
to U.S. dollar denominated investments. Further, the International Equity Fund
may engage in currency transactions to hedge the value of portfolio holdings
denominated in particular currencies against fluctuations in relative value.
    
    
Currency transactions include forward currency contracts, exchange listed
currency futures, exchange listed and OTC options on currencies, and currency
swaps. A forward currency contract involves a privately negotiated obligation to
purchase or sell (with delivery generally required) a specific currency at a
future date, which may be any fixed number of days from the date of the contract
agreed upon by the parties, at a price set at the time of the contract. A
currency swap is an agreement to exchange cash flows based on the notional
difference among two or more currencies and operates similarly to an interest
rate swap. A Fund may enter into currency transactions with counterparties which
have received (or the guarantors of the obligations of which have received) a
credit rating of A-1 or P-1 by Standard & Poor's Ratings Group ("S&P") or
Moody's Investors Service ("Moody's"), respectively, or that have an equivalent
rating from a nationally recognized statistical rating organization ("NRSRO") or
(except for OTC currency options) are determined to be of equivalent credit
quality by the adviser.     

The International Equity Fund's dealings in forward currency contracts and other
currency transactions such as futures, options, options on futures, and swaps
will be limited to hedging involving either specific transactions or portfolio
positions. Transaction hedging is entering into a currency transaction with
respect to specific assets or liabilities of a Fund, which will generally arise
in connection with the purchase or sale of its portfolio securities or the
receipt of income therefrom. Position hedging is entering into a currency
transaction with respect to portfolio security positions denominated or
generally quoted in that currency. For example, if the Fund believes that a
foreign currency may suffer a substantial decline against the U.S. dollar, it
may enter into a forward sale contract to sell an amount of that foreign
currency approximating the value of some or all of the Fund's portfolio
securities denominated in such foreign currency. The Funds may also cross-hedge
currencies by entering into transactions to purchase or sell one or more
currencies that are expected to decline in value relative to other currencies to
which the Fund has or in which the Fund expects to have portfolio exposure.

A Fund will not enter into a transaction to hedge currency exposure to an extent
greater, after netting all transactions intended wholly or partially to offset
other transactions, than the aggregate market value (at the time of entering
into the transaction) of the securities held in its portfolio that are
denominated or generally quoted in or currently convertible into such currency,
other than with respect to proxy hedging as described below.

To reduce the effect of currency fluctuations on the value of existing or
anticipated holdings of portfolio securities, the Funds may also engage in proxy
hedging. Proxy hedging is often used when the currency to which the Fund's
portfolio is exposed is difficult to hedge or to hedge against the dollar. Proxy
hedging entails entering into a forward contract to sell a currency whose
changes in value are generally considered to be linked to a currency or
currencies in which some or all of the Fund's portfolio securities are or are
expected to be denominated, and to buy U.S. dollars. The amount of the contract
would not exceed the value of the Fund's securities denominated in linked
currencies. For example, if the adviser considers that the Austrian schilling is
linked to the German deutsche mark (the "D-mark"), the Fund holds securities
denominated in schillings and the adviser believes that the value of schillings
will decline against the U.S. dollar, the adviser may enter into a contract to
sell D-marks and buy dollars. Currency hedging involves some of the same risks
and considerations as other transactions with similar instruments. Currency
transactions can result in losses to the Fund if the currency being hedged
fluctuates in value to a degree or in a direction that is not anticipated.
Further, there is the risk that the perceived linkage between various currencies
may not be present during the particular time that the Fund is engaging in proxy
hedging.

(3) RISKS REGARDING HEDGING INSTRUMENTS AND DERIVATIVES

Some of the general risks associated with hedging and the use of derivatives
include: (a) the possible absence of a liquid secondary market for any
particular hedging instrument at any time; (b) these instruments can be highly


                                      B-6
<PAGE>
 
volatile; and (c) the possible need to defer closing out certain positions to
avoid adverse tax consequences.  More specific risks are set forth below.

     (A) FORWARD CONTRACTS: Forward contracts involve a risk of loss if the
     value of the security to be purchased declines prior to the settlement
     date, which risk is in addition to the risk of decline in value of the
     Funds' other assets.

     (B) CURRENCY TRANSACTIONS: Currency transactions are subject to risks
     different from those of other portfolio transactions. Because currency
     control is of great importance to the issuing governments and influences
     economic planning and policy, purchases and sales of currency and related
     instruments can be negatively affected by government exchange controls,
     blockages, and manipulations or exchange restrictions imposed by
     governments. These can result in losses to a Fund if it is unable to
     deliver or receive currency or funds in settlement of obligations and could
     also cause hedges it has entered into to be rendered useless, resulting in
     full currency exposure as well as incurring transaction costs. Buyers and
     sellers of currency futures are subject to the same risks that apply to the
     use of futures generally. Further, settlement of a currency futures
     contract for the purchase of most currencies must occur at a bank based in
     the issuing nation. Trading options on currency futures is relatively new,
     and the ability to establish and close out positions on such options is
     subject to the maintenance of a liquid market which may not always be
     available. Currency exchange rates may fluctuate based on factors extrinsic
     to that country's economy.

RESTRICTED AND ILLIQUID SECURITIES

None of the Funds currently expect to invest in restricted or illiquid
securities, although, as a non-fundental policy, each Fund may invest no more
than 15% of its net assets in illiquid securities. However, this policy does not
limit the purchases of securities eligible for resale to qualified institutional
buyers pursuant to Rule 144A under the Securities Act of 1933, provided that
such securities are determined to be liquid by the Board of Trustees, or the
adviser if such determination is pursuant to Board-approved guidelines. Such
guidelines shall take into account trading activity for such securities and the
availability of reliable pricing information, among other factors. If there is a
lack of trading interest in particular Rule 144A securities, a Fund's holdings
of those securities may be illiquid, resulting in undesirable delays in selling
these securities at prices representing fair value.

FOREIGN SECURITIES

    
The International Equity Fund and to a lesser extent each of the other Funds are
permitted to invest in foreign securities. With the exception of the
International Equity Fund, each Fund intends to invest in foreign securities
only if: (i) such securities are U.S. denominated; or (ii) if such securities
are not U.S. denominated, the Fund contemporaneously enters into a foreign
currency transaction to hedge the currency risk associated with the particular
foreign security. If a Fund's securities are held abroad, the countries in which
such securities may be held and the sub-custodian holding them must be approved
by the Board of Trustees or its delegate under applicable rules adopted by the
Securities and Exchange Commission (the "SEC"). In buying foreign securities, a
Fund may convert U.S. dollars into foreign currency, but only to effect
securities transactions on foreign securities exchanges and not to hold such
currency as an investment.      

Investments in foreign securities involve special risks and considerations. As
foreign companies are not generally subject to uniform accounting, auditing and
financial reporting standards, practices and requirements comparable to those
applicable to domestic companies, there may be less publicly available
information about a foreign company than about a domestic company. For example,
foreign markets have different clearance and settlement procedures. Delays in
settlement could result in temporary periods when assets of a Fund are
uninvested. The inability of a Fund to make intended security purchases due to
settlement problems could cause it to miss certain investment opportunities.
They may also entail certain other risks, such as the possibility of one or more
of the following: imposition of dividend or interest withholding or confiscatory
taxes, higher brokerage costs, thinner trading markets, currency blockages or
transfer restrictions, expropriation, nationalization, military coups or other
adverse political or economic developments; less government supervision and
regulation of securities exchanges, brokers and listed companies; and the
difficulty of enforcing obligations in other countries. Purchases of foreign
securities are usually made in foreign currencies and, as a result, a Fund may
incur currency conversion costs and may be affected favorably or unfavorably by
changes in the value of foreign currencies against the U.S. dollar. Further, it
may be more difficult for a Fund's agents to keep currently informed about
corporate actions which may affect the prices of

                                      B-7
<PAGE>
 
portfolio securities. Communications between the United States and foreign
countries may be less reliable than within the United States, thus increasing
the risk of delayed settlements of portfolio transactions or loss of
certificates for portfolio securities. Certain markets may require payment for
securities before delivery. A Fund's ability and decisions to purchase and sell
portfolio securities may be affected by laws or regulations relating to the
convertibility of currencies and repatriation of assets.

A number of current significant political, demographic and economic developments
may affect investments in foreign securities and in securities of companies with
operations overseas. Such developments include dramatic political changes in
government and economic policies in several Eastern European countries and the
republics composing the former Soviet Union, as well as the unification of the
European Economic Community. The course of any one or more of these events and
the effect on trade barriers, competition and markets for consumer goods and
services are uncertain. Similar considerations are of concern with respect to
developing countries. For example, the possibility of revolution and the
dependence on foreign economic assistance may be greater in these countries than
in developed countries. Management seeks to mitigate the risks associated with
these considerations through diversification and active professional management.

SHORT SALES AGAINST-THE-BOX
    
Selling short "against-the-box" refers to the sale of securities actually owned
by the seller but held in safekeeping. In such short sales, while the short
position is open, a Fund must own an equal amount of such securities, or by
virtue of ownership of securities have the right, without payment of further
consideration, to obtain an equal amount of securities sold short. Short sales
against-the-box generally produce current recognition of gain for federal income
tax purposes on the constructive sale of securities "in the box" prior to the
time the short position is closed out. None of the Funds currently intend to
engage in short sales against-the-box.     

INVESTMENT BASKET

Notwithstanding any Fund's fundamental investment restrictions (except those
imposed as a matter of law), the Board of Trustees may authorize one or more of
the Funds to invest in any security or investment-related instrument, or to
engage in investment-related transactions or practices, such as newly developed
debt securities or hedging programs, provided that the Board of Trustees has
determined that to do so is consistent with the Fund's investment objectives and
policies and has adopted reasonable guidelines for use by the Fund's advisers,
and provided further that at the time of making such investment or entering into
such transaction, such investments or instruments account for not more than 10%
of the Fund's total assets. The Trust has no current intention of using this
investment basket authority.

                      FUNDAMENTAL INVESTMENT RESTRICTIONS
                      -----------------------------------

Each Fund is subject to certain fundamental restrictions on its investments,
which may not be changed without the affirmative vote of a majority of the
outstanding shares of that Fund. Investment restrictions that appear below or
elsewhere in this Statement of Additional Information and in the Prospectus
which involve a maximum percentage of securities or assets shall not be
considered to be violated unless an excess over the percentage occurs
immediately after, and is caused by, an acquisition or encumbrance of securities
or assets of, or borrowings by or on behalf of, a Fund. The Trust may not, on
behalf of any Fund:

     (1) Purchase any security (other than U.S. Treasury securities or U.S.
     Government Securities) if as a result, with respect to 75% of the Fund's
     assets, more than 5% of the value of the total assets (determined at the
     time of investment) of a Fund would be invested in the securities of a
     single issuer.

     (2) Borrow money, except from banks for temporary or emergency purposes not
     in excess of one-third of the value of a Fund's assets, except that a Fund
     may enter into reverse repurchase agreements or roll transactions. For
     purposes of calculating this limitation, entering into portfolio lending
     agreements shall not be deemed to constitute borrowing money. A Fund would
     not make any additional investments while its borrowings exceeded 5% of its
     assets.

     (3) Issue senior securities (as defined in the 1940 Act) except for
     securities representing indebtedness not prevented by paragraph (2) above.

                                      B-8
<PAGE>
 
     (4) Make short sales, except for sales "against the box."

     (5) Act as an underwriter, except to the extent that, in connection with
     the disposition of portfolio securities, a Fund may be deemed an
     underwriter under applicable laws.

     (6) Invest in oil, gas or other mineral leases, rights, royalty contracts
     or exploration or development programs, real estate or real estate mortgage
     loans. This restriction does not prevent a Fund from purchasing readily
     marketable securities secured or issued by companies investing or dealing
     in real estate and by companies that are not principally engaged in the
     business of buying and selling such leases, rights, contracts or programs.

     (7) Purchase physical commodities or commodity contracts (except futures
     contracts, including but not limited to contracts for the future delivery
     of securities and futures contracts based on securities indices).

     (8) Make loans other than by investing in obligations in which a Fund may
     invest consistent with its investment objective and policies and other than
     repurchase agreements and loans of portfolio securities.

     (9) Pledge, mortgage or hypothecate assets taken at market to an extent
     greater than 15% of the total assets of the Fund except in connection with
     permitted transactions in options, futures contracts and options on futures
     contracts, reverse repurchase agreements and securities lending.

     (10) Purchase any security (other than securities issued, guaranteed or
     sponsored by the U.S. Government or its agencies or instrumentalities) if,
     as a result, a Fund would hold more than 10% of the outstanding voting
     securities of an issuer.

     (11) Purchase or retain securities of any issuer if, to the knowledge of
     the Trust, more than 5% of such issuer's securities are beneficially owned
     by officers and trustees of the Trust or officers and directors of its
     adviser who individually beneficially own more than 1/2 of 1% of the
     securities of such issuer.

Notwithstanding any fundamental investment restriction set forth above or in the
Prospectus, each Fund may: (1) engage in hedging transactions, techniques, and
practices using forward contracts and similar instruments, to the extent and in
a manner permitted by law; and (2) invest in any security or investment-related
instrument, or engage in any investment-related transaction or practice,
provided that the Board of Trustees has determined that to do so is consistent
with the investment objective and policies of the Fund and has adopted
reasonable guidelines for use by the Fund's adviser, and provided further that
at the time of entering into such investment or transaction, such investments or
instruments account for no more than 10% of the Fund's total assets. For the
foreseeable future, the Funds do not expect to engage in futures and options
transactions or interest rate swap agreements.

                     NON-FUNDAMENTAL INVESTMENT RESTRICTIONS
                     --------------------------------------

In addition to the investment restrictions described above and those contained
in the Prospectus, the Trustees of the Trust have voluntarily adopted certain
policies and restrictions which are observed in the conduct of the affairs of
the Funds. These represent intentions of the Trustees based upon current
circumstances. They differ from fundamental investment policies in that the
following additional investment restrictions may be changed or amended by action
of the Trustees without requiring prior notice to or approval of shareholders.

In accordance with such policies and guidelines, each Fund may not:

     (1) Invest for the purpose of exercising control over, or management of,
     any company.

     (2) Invest in securities of other investment companies, except by purchase
     in the open market where no commission or profit to a sponsor or dealer
     results from such purchase other than the customary broker's commission,
     except when such purchase is part of a plan of merger, consolidation,
     reorganization or acquisition or except shares of money market funds
     advised by MassMutual or an affiliate thereof. It is expected that a Fund
     would purchase shares of such money market funds only if arrangements are
     made to eliminate duplicate advisory and distribution fees.


                                      B-9
<PAGE>
 
         
     (3) To the extent that shares of a Fund are purchased or otherwise acquired
     by an acquiring company that is part of the same group of investment
     companies as the Trust in reliance on Section 12(d)(1)(G) of the 1940 Act,
     acquire any securities of registered open-end investment companies or
     registered unit investment trusts in reliance or Section 12(d)(1)(F) or
     Section 12 (d)(1)(G) of the 1940 Act.     

                            MANAGEMENT OF THE TRUST
                            -----------------------

The Trust has a Board of Trustees, a majority of which must not be "Interested
Persons" as defined in the 1940 Act. The Trustees and principal officers of the
Trust are listed below together with information on their positions with the
Trust, address, age, principal occupations during the past five years and other
principal business affiliations.

GARY E. WENDLANDT*                    Chairman, Chief Executive Officer
1295 State Street                     and Trustee of the Trust
Springfield, MA 01111
    
Age: 47      
         
     Chief Investment Officer (since 1993), Executive Vice President (since
     1992), Senior Vice President (1983-1992), MassMutual; Chairman (since
     1995), Vice Chairman (1993-1995) and President (1988-1993), MML Series
     Investment Fund (openend investment company); Chairman (since 1995),
     President (1983-1995) and Trustee: MassMutual Corporate Investors and
     Chairman (since 1995), President (1988-1995) and Trustee, MassMutual
     Participation Investors (closed-end investment companies); Chairman (since
     1996), Antares Leveraged Capital Corp. (finance company); Chairman, HYP
     Management, Inc. (managing member of MassMutual High Yield Partners LLC)
     and MMHC Investment, Inc. (investor in MassMutual High Yield Partners LLC);
     Advisory Board Member (since 1996), MassMutual High Yield Partners LLC
     (high yield bond fund); President and Director (since 1995), DLB
     Acquisition Corporation (holding company for investment advisers); Director
     (since 1990), Oppenheimer Acquisition Corporation (investment advisory
     holding company); Supervisory Director (since 1991) MassMutual/Carlson CBO
     N.V. (collateralized bond fund); Director (since 1994), MassMutual
     Corporate Value Partners Limited (investor in debt and equity securities)
     and MassMutual Corporate Value Limited (parent of MassMutual Corporate
     Value Partners Limited); Chairman (since 1994) and Director (since 1993),
     MML Realty Management Corporation; Chairman (since 1994) and Chief
     Executive Officer (1994-1996), Cornerstone Real Estate Advisers, Inc.
     (wholly-owned real estate investment adviser subsidiary of MassMutual
     Holding Company); Director (since 1992), Merrill Lynch Derivative Products,
     Inc.; Chairman (1994-1995) and Director (19931995), MML Real Estate
     Corporation.     

RONALD J. ABDOW                       Trustee of the Trust
1400 Elm Street
West Springfield, MA 01089
    
Age: 66      

     President, Abdow Corporation (operator of restaurants); General Partner,
     Grove Investment Group (apartment building syndicator); Trustee, Abdow G&R
     Trust and Abdow G&R Co. (owners and operators of restaurant properties);
     Partner, Abdow Partnership, Abdow Auburn Associates, and Abdow Hazard
     Associates (owners and operators of restaurant properties); Trustee (since
     1993) MML Series Investment Fund (open-end investment company).

RICHARD H. AYERS                      Trustee of the Trust
1000 Stanley Drive
New Britain, CT 06053
    
Age: 55      
         
     Adviser to Chairman (since 1997), Chairman and Chief Executive Officer
     (1989-1996) and Director (since 1985), The Stanley Works (manufacturer of
     tools, hardware, specialty hardware and specialty hardware products);
     Director (since 1986), Southern New England Telecommunications Corp.;
     Director, (since 1988) Perkin Elmer Corp.; Advisory Board Member (since
     1996), MML Series Investment Fund (openend investment company).      

- ---------------
* Trustee who is an "interested person" of the Trust within the definition set
forth in Section 2(a)(19) of the 1940 Act.

                                     B-10
<PAGE>
 
MARY E. BOLAND                        Trustee of the Trust
67 Market Street
Springfield, MA 01118
    
Age: 58      

     Attorney at Law, Egan, Flanagan and Cohen, P.C. (law firm), Springfield,
     MA;  Director (since 1995), Trustee (until 1995), SIS Bank (formerly,
     Springfield Institution for Savings); Trustee, MML Series Investment Fund
     (open-end investment company).

DAVID E.A. CARSON                     Trustee of the Trust
850 Main Street
Bridgeport, CT 06604
    
Age: 63      

     President and Chief Executive Officer (since 1985), People's Bank;
     Director, United Illuminating Co.; Trustee, American Skandia Trust (open-
     end investment company). Advisory Board Member (since 1996), MML Series
     Investment Fund (open-end investment company).

RICHARD G. DOOLEY*                    Trustee of the Trust
1295 State Street
    
Springfield, Massachusetts 01111
Age: 68      

     Consultant (since 1993), Executive Vice President and Chief Investment
     Officer (1978-1993), MassMutual; Director (since 1996), Investment
     Technology Group Inc.; Director, The Advest Group, Inc. (financial services
     holding company), Hartford Steam Boiler Inspection and Insurance Co., New
     England Education Loan Marketing Corporation; Director (since 1992), Kimco
     Realty Corp. (shopping center ownership and management); Director (since
     1993), Jefferies Group, Inc. (financial services holding company); Director
     and Vice President, Oppenheimer Acquisition Corporation (investment
     advisory holding company); Vice Chairman (since 1995), Chairman (1982-
     1995), MassMutual Corporate Investors, and Vice Chairman (since 1995),
     Chairman (1988-1995), MassMutual Participation Investors (closed-end
     investment companies); Director (1993-1995), Luxonen S.A. (Swedish
     investment fund); Supervisory Director (1991-1995), MassMutual/Carlson CBO
     N.V. (collateralized bond fund); Director (1984-1993), MML Real Estate
     Corporation (real estate management subsidiary of MassMutual Holding
     Company) and MML Realty Management Corporation (subsidiary of MassMutual
     Holding Company to manage real estate projects); Vice Chairman (since
     1995), Chairman (1988-1995), MML Series Investment Fund (openend investment
     company).

RICHARD W. GREENE                     Trustee of the Trust
University Of Rochester
Rochester, NY  14627
    
Age: 62      

     Executive Vice President and Treasurer (since 1986), University of
     Rochester (private university). Advisory Board Member (since 1996), MML
     Series Investment Fund (open-end investment company).

BEVERLY C.L. HAMILTON                 Trustee of the Trust
515 South Flower Street
Los Angeles, CA  90017
    
Age: 51      

     President (since 1991), ARCO Investment Management Co.; Vice President
     (since 1991), Atlantic Richfield Company; Director (since 1992),
     Connecticut Natural Gas; Director (since 1991), Emerging Markets Growth
     Fund (closed-end investment company). Advisory Board Member (since 1996),
     MML Series Investment Fund (open-end investment company).


- ---------------
* Trustee who is an "interested person" of the Trust within the definition set
forth in Section 2(a)(19) of the 1940 Act.



                                     B-11
<PAGE>
 
F. WILLIAM MARSHALL, JR.              Trustee of the Trust
1441 Main Street
Springfield, MA 01102-3034
Age: 55

     President, Chief Executive Officer and Director (since 1993), SIS Bank
     (formerly, Springfield Institution for Savings); Chairman and Chief
     Executive Officer (1990-1993), Bank of Ireland First Holdings, Inc. and
     First New Hampshire Banks; Trustee (since 1996), MML Series Investment Fund
     (open-end investment company).
    
CHARLES J. MCCARTHY                   Trustee of the Trust
181 Eton Road
Longmeadow, MA 01106
Age: 74      

     Proprietor, Synectics Financial Company (venture capital activities,
     business consulting and investments); Trustee, MML Series Investment Fund
     (open-end investment company).
    
JOHN V. MURPHY*               Trustee of the Trust
1295 State Street
Springfield, Massachusetts 01111
Age: 48      

     Executive Vice President (since 1997) of MassMutual; Executive Vice
     President, Director and Chief Operating Officer (1995-1997), David L. 
     Babson and Company Incorporated; Chief Operating Officer (1993-1996), 
     Concert Capital Management, Inc.; Senior Vice President and Director 
     (since 1995), Potomac Babson Incorporated; Chief Financial Officer (1985-
     1993), Liberty Financial Companies (financial services).
    
JOHN H. SOUTHWORTH                    Trustee of the Trust
195 Eton Road
Longmeadow, MA 01106
Age: 70      

     Chairman (since 1993) and President (1984-1992), Southworth Company
     (manufacturer of paper and calendars); Director (since 1995), Trustee
     (until 1995), SIS Bank (formerly, Springfield Institution for Savings);
     Trustee, MML Series Investment Fund (open-end investment company).
    
STUART H. REESE               President of the Trust
1295 State Street
Springfield, MA 01111
Age: 42

     Chief Executive Director (since 1997), Senior Vice President (1993-1997),
     MassMutual; President (since 1993), MML Series Investment Fund; President
     (since 1995), Executive Vice President (1993-1995), MassMutual Corporate
     Investors and MassMutual Participation Investors (close-end investment
     companies); Director (since 1996), Antares Leveraged Capital Corp. (finance
     company) and Charter Oak Capital Management, Inc. (investment adviser);
     President and Director (since 1996) HYP Management, Inc. (managing member
     of MassMutual High Yield Partners LLC), and MMHC Investment, Inc. (investor
     in MassMutual High Yield Partners LLC); Director (since 1994), MassMutual
     Corporate Value Partners Limited (investor in debt and equity securities)
     and MassMutual Corporate Value Limited (parent of MassMutual Corporate
     Value Partners Limited); Supervisory Director (since 1994),
     MassMutual/Carlson CBO (collateralized bond fund); Director and Member of
     Investment Committee (since 1994), MML Bay State Life Insurance Company
     (wholly-owned insurance subsidiary of MassMutual); Director and Member
     of  Investment and Auditing Committees, MML Pension Insurance Company
     (wholly-owned insurance subsidiary of MassMutual Holding Company Two MSC,
     Inc.); Director (since 1994), Pace Industries (aluminum die caster); Vice
     President and Managing Director (1990-1992), Capital Markets Group of Aetna
     Life & Casualty Company; Chairman and President (1990-1993), Aetna 
     Financial Services, Inc.      

- ---------------
* Trustee who is an "interested person" of the Trust within the definition set
  forth in Section 2(a)(19) of the 1940 Act.

                                      B-12
<PAGE>
 
    
HAMLINE C. WILSON             Vice President and Chief Financial
1295 State Street             Officer of the Trust
Springfield, MA 01111
Age: 60      

     Senior Managing Director (since 1996), Vice President and Managing Director
     (1989-1996), MassMutual; Vice President and Chief Financial Officer, MML
     Series Investment Fund, MassMutual Corporate Investors and MassMutual
     Participation Investors.

STEPHEN L. KUHN               Vice President and Secretary
1295 State Street             of the Trust
Springfield, MA 01111
Age: 50

     Vice President and Associate General Counsel (since 1992), Second Vice
     President and Associate General Counsel (1988-1992), MassMutual; Vice
     President and Secretary, MML Series Investment Fund, MassMutual
     Participation Investors and MassMutual Corporate Investors; President,
     MassMutual/Carlson CBO Incorporated; Chief Legal Officer and Assistant
     Secretary (since 1995), DLB Acquisition Corporation (holding company for
     investment advisers); Assistant Secretary (since 1997), Oppenheimer
     Acquisition Corporation (investment advisor holding company).
    
CHARLES C. MCCOBB, JR.                Vice President of the Trust
1295 State Street
Springfield, MA 01111
Age: 53

     Managing Director (since 1997), MassMutual; Managing Director/Vice
     President (1994-1997) Citicorp; Managing Director/Vice President (1973-
     1994) Aetna Life & Casualty Company.

EDMOND F. RYAN                Vice President of the Trust
1295 State Street
Springfield, MA 01111
Age: 49

     Senior Vice President (since 1995), Vice President (1985-1995) MassMutual.
     
RAYMOND B. WOOLSON                    Treasurer of the Trust
1295 State Street
Springfield, MA 01111
Age: 38

     Senior Managing Director (since 1996), Second Vice President (1992-1996),
     Director/Fund Account Administration (1989-1992), MassMutual; Treasurer,
     MassMutual Corporate Investors and MassMutual Participation Investors;
     Treasurer (since 1996), MML Series Investment Fund (openend investment
     company).
    
MARK B. ACKERMAN              Comptroller of the Trust
1295 State Street
Springfield, MA 01111
Age: 32

     Investment Director (since 1996), Associate Director (1993-1996),
     MassMutual; Controller (since 1997) Associate Treasurer (1995-1997),
     MassMutual Participation Investors and MassMutual Corporate Investors;
     Comptroller (since 1997), Associate Treasurer (1995-1996), MML Series
     Investment Fund (openend investment company).      

The Audit Committee makes recommendations to the Trustees as to the engagement
or discharge of the Trust's independent auditors, supervises investigations into
matters relating to audit functions, reviews with the Trust's independent
auditors the results of the audit engagement, and considers the audit fees. The
Nominating Committee consists of Trustees who are not "interested persons" (as
defined in the 1940 Act) of the Trust or any adviser and considers making all
nominations for non-interested members of the Board of Trustees.  The selection
and nomination of management nominees for such vacancies is committed to the
discretion of the Nominating Committee. The Investment Pricing Committee
determines the fair value of securities for which market quotations are not
readily available.

                                      B-13
<PAGE>
 
                                  COMPENSATION
                                  ------------

The Trust, on behalf of each Fund, pays each of its Trustees who is not an
officer or employee of MassMutual a fee of $2,000 per quarter plus $2,000 per
meeting attended. Such Trustees who serve on the Audit Committee of the Trust
are paid an additional fee of $1,000 per year. Such Trustees who serve on the
Nominating Committee or the Investment Pricing Committee are paid an additional
fee of $500 per meeting attended. In addition, the Trust reimburses out-of-
pocket business travel expenses to such Trustees. Trustees who are officers or
employees of MassMutual receive no fees from the Trust.

                               COMPENSATION TABLE
                               ------------------

The following table discloses the  compensation paid to the Registrant's
non-interested trustees for the 1996 fiscal year. The Registrant has no pension,
retirement, or deferred compensation plans. All of the non-interested Trustees
also serve as Trustees or Advisory Board Members of one other investment company
managed by MassMutual. Total Compensation from Registrant and Fund Complex
reflects compensation  paid in the 1996 fiscal year.

<TABLE>
<CAPTION>

- ------------------------------------------------------------------------------------------------------------
                                                                                       TOTAL COMPENSATION
                                                     AGGREGATE                         FROM REGISTRANT AND
            NAME/POSITION                  COMPENSATION FROM REGISTRANT                   FUND COMPLEX
- ------------------------------------------------------------------------------------------------------------
<S>                                    <C>                                    <C>
Ronald J. Abdow                                                                                                    
Trustee                                              $16,000                                $32,000                
- ------------------------------------------------------------------------------------------------------------
Richard H. Ayers                                                                                                   
Trustee                                              $ 2,000                                  6,000                
- ------------------------------------------------------------------------------------------------------------
Mary E. Boland                                                                                                     
Trustee                                               16,000                                 32,000                
- ------------------------------------------------------------------------------------------------------------
David E.A. Carson                                                                                                  
Trustee                                                2,000                                  6,000                
- ------------------------------------------------------------------------------------------------------------
Richard W. Greene                                                                                                  
Trustee                                                2,000                                  6,000                
- ------------------------------------------------------------------------------------------------------------
Beverly C.L. Hamilton                                                                                              
Trustee                                                2,000                                  6,000                
- ------------------------------------------------------------------------------------------------------------
F. William Marshall, Jr.                                                                                           
Trustee                                               12,000                                 23,333                
- ------------------------------------------------------------------------------------------------------------
Charles J. McCarthy                                                                                                
Trustee                                               17,000                                 34,000                
- ------------------------------------------------------------------------------------------------------------
John H. Southworth                                                                                                 
Trustee                                               17,000                                 73,246 
- ------------------------------------------------------------------------------------------------------------
</TABLE>

The officers and Trustees of the Trust as a group own less than 1% of any series
of outstanding shares of the Trust.

The Trust's shareholders have the right, upon the declaration in writing or vote
of at least two-thirds of the votes represented by its outstanding shares, to
remove a Trustee.  The Trustees shall call a meeting of shareholders to vote on
the removal of a Trustee upon the written request of the record holders of
shares representing at least 10% of all of the votes represented by all
outstanding shares of the Trust.  In addition, whenever ten or more shareholders
of record who have been such for at least six months preceding the date of
application, and who hold in the aggregate either shares having a net asset
value of at least $25,000 or at least 1% of the Trust's outstanding shares,
whichever is less, shall apply to the Trustees in writing, stating that they
wish to communicate with other shareholders with a view to obtaining signatures
for a request for a meeting for the purpose of voting upon the question of
removal of any Trustee or Trustees and accompanied by the form of communication
and request which they wish to transmit, the Trustees shall within five business
days after receipt of such application either:  (1) afford to such applicants
access to a list of the names and addresses of all shareholders as recorded on
the books of the Trust; or (2) inform such applicants as to the approximate
number of shareholders of record, and the  

                                      B-14
<PAGE>
 
    
approximate cost of mailing to them the proposed communication and form of
request. If the Trustees elect to follow the latter course, the Trustees, upon
the written request of such applicants, accompanied by a tender of the material
to be mailed and of the reasonable expenses of mailing, shall, with reasonable
promptness, mail such material to all shareholders of record at their addresses
as recorded on the books of the Trust, unless within five business days after
such tender the Trustees shall mail to such applicants and file with the SEC,
together with a copy of the material to be mailed, a written statement signed by
at least a majority of the Trustees to the effect that in their opinion either
such material contains untrue statements of fact or omits to state facts
necessary to make the statements contained therein not misleading, or would be
in violation of applicable law, and specifying the basis of such opinion.      

After opportunity for hearing regarding the objections specified in the written
statement so filed, the SEC may, and if demanded by the Trustees or by such
applicants shall, enter an order either sustaining one or more of such
objections, or refusing to sustain any of them.  If the SEC shall enter an order
refusing to sustain any such objections or if, after the entry of an order
sustaining one or more of such objections, the SEC shall find, after notice and
opportunity for hearing, that all objections so sustained have been met, and
shall enter an order so declaring, the Trustees shall mail copies of such
material to all shareholders with reasonable promptness after the entry of such
order and the renewal of such tender.

On any matters submitted to a vote of shareholders, all shares of the Trust then
entitled to vote shall be voted in the aggregate as a single class without
regard to Fund or class, except that:  (i) when required by the 1940 Act or when
the Trustees shall have determined that the matter affects one or more of the
Funds or classes materially differently, shares will be voted by individual Fund
or class; and (ii) when the Trustees have determined that any matter affects
only the interests of one or more Funds or classes, then only shareholders of
such Fund or class shall be entitled to vote thereon.  Shareholder inquiries
should be directed to MassMutual Institutional Funds, 1295 State Street,
Springfield, MA  01111.
    
               CONTROL PERSON AND PRINCIPAL HOLDER OF SECURITIES
               -------------------------------------------------

MassMutual may be deemed a control person of the Trust in that certain of its
separate investment accounts and its provision of seed money for the Trust 
together constitute 100% of the shares of each class of each Fund of the Trust
as of September 30, 1997.     

                       INVESTMENT MANAGER AND SUBADVISERS
                       ----------------------------------

INVESTMENT MANAGER

MassMutual serves as investment manager to each Fund pursuant to an Investment
Management Agreement with the Trust on behalf of each Fund dated September 30,
1994 (each an "Advisory Agreement").  Under each Advisory Agreement, MassMutual
is obligated to provide for the management of each Fund's portfolio of
securities and makes investment decisions with respect to the purchase and sale
of investments for the Prime Fund, the Short-Term Bond Fund, the Core Bond Fund
and the Prime and Core Bond Sectors of the Balanced Fund, subject to policies
established by the Trustees of the Trust and in accordance with each Fund's
investment objective, policies and restrictions as set forth herein and in the
Prospectus.

Each Advisory Agreement may be terminated at any time without the payment of any
penalty by the Trustees, or by vote of a majority of the outstanding shares of
the Fund, or by MassMutual, on sixty days' written notice.  In addition, each
Advisory Agreement automatically terminates if it is assigned or if its
continuance is not specifically approved at least annually (1) by the
affirmative vote of a majority of the Trustees or by the affirmative vote of a
majority of the Fund's shares, and (2) by an affirmative vote of a majority of
the Trustees who are not "interested persons" (as defined in the1940 Act) of the
Trust.  Under the terms of each Advisory Agreement, a Fund recognizes
MassMutual's control of the name "MassMutual" and the Trust agrees that its
right to use such name is non-exclusive and can be terminated by MassMutual at
any time.  MassMutual's liability regarding its investment management
obligations and duties is limited to situations involving its willful
misfeasance, bad faith, gross negligence or reckless disregard of such
obligations and duties.
    
MassMutual also serves as investment adviser to: MassMutual Corporate Investors
and MassMutual Participation Investors, closed-end management investment
companies; MML Money Market Fund, MML Equity Fund, MML Managed Bond Fund, MML
Blend Fund, and MML Equity Index Fund, which are series of MML Series Investment
Fund, an open-end management investment company; certain wholly owned
subsidiaries of MassMutual; MassMutual/Carlson CBO N.Y., a corporation that
issued Collateralized Bond Obligations on or about May 1, 1991;      

                                      B-15
<PAGE>
 
    
MassMutual Corporate Value Partners, a partnership formed in 1994 to provide
investment opportunities on a leverage basis in the public or private high yield
markets; MassMutual High Yield Partners LLC, a limited liability company formed
in 1996 to invest in publicly traded high yield bonds, high yield syndicated
bank debt and public convertible securities; and various employee benefit plans.
     
The Trust, on behalf of each Fund, pays MassMutual an investment advisory fee
monthly, at an annual rate based upon the average daily net assets of that Fund
as follows:  .45% for the Prime Fund, the Short-Term Bond Fund, the Core Bond
Fund, the Balanced Fund and the Value Equity Fund;  .55% for the Small Cap Value
Equity Fund;  and .85% for the International Equity Fund.

For the last three fiscal periods, the Funds have paid the following amounts as
investment advisory fees to MassMutual pursuant to each Advisory Agreement:
<TABLE>    
<CAPTION>
                                                           Gross       Waiver**       Net
PRIME FUND                                                 
<S>                                                    <C>          <C>           <C>
Period ended 12/31/94*                                 $   161,361  $   (15,967)  $  145,394
Year ended 12/31/95                                      1,027,586      (70,814)     956,772
Year ended 12/31/96                                      1,150,292      (89,223)   1,061,069

SHORT-TERM BOND FUND
Period ended 12/31/94*                                     123,543      (12,731)     110,812
Year ended 12/31/95                                        528,655      (39,446)     489,209
Year ended 12/31/96                                        606,206      (47,791)     558,415

CORE BOND FUND
Period ended 12/31/94*                                     231,644      (27,892)     203,752
Year ended 12/31/95                                        964,830      (91,069)     873,761
Year ended 12/31/96                                      1,375,667     (128,270)   1,247,397

BALANCED FUND
Period ended 12/31/94*                                     395,156      (46,523)     348,633
Year ended 12/31/95                                      1,801,770     (165,250)   1,636,520
Year ended 12/31/96                                      2,271,174     (203,071)   2,068,103

VALUE EQUITY FUND
Period ended 12/31/94*                                   1,792,257     (244,445)   1,547,812
Year ended 12/31/95                                      8,289,231     (852,771)   7,436,460
Year ended 12/31/96                                     10,377,627   (1,077,667)   9,299,960

SMALL CAP VALUE EQUITY FUND
Period ended 12/31/94*                                     433,941      (45,051)     388,890
Year ended 12/31/95                                      1,928,743     (155,450)   1,773,293
Year ended 12/31/96                                      2,298,488     (182,305)   2,116,183

INTERNATIONAL EQUITY FUND
Period ended 12/31/94*                                     331,042      (33,401)     297,641
Year ended 12/31/95                                      1,580,088     (170,788)   1,409,300
Year ended 12/31/96                                      2,398,114     (196,769)   2,201,345
</TABLE>      
*The Funds commenced operations on October 3, 1994.
    
**MassMutual's voluntary agreement to waive a portion of its management fee
terminated May 1, 1997. See "Financial Highlights" in the Prospectus. 

In addition, MassMutual has entered into a separate administrative services
agreement ("Administrative Services Agreement") with each Fund pursuant to which
MassMutual is obligated to provide all necessary administrative and shareholder
services and to bear some Class expenses, such as federal and state registration
fees, printing and      

                                      B-16
<PAGE>
 
    
postage. MassMutual may, at its expense, employ others to supply all or any part
of the services to be provided to the Funds pursuant to the Administrative
Services Agreements. The Trust, on behalf of each Fund, pays MassMutual an
administrative services fee monthly at an annual rate based upon the average
daily net assets of the applicable class of shares of the Fund which range from
 .4752% to .4875% for Class A shares; .2752% to .2875% for Class Y shares; and
 .0774% to .0777% for Class S shares.      

For the last three fiscal periods, the Funds have paid the following amounts as
administrative services fees to MassMutual pursuant to each Administrative
Services Agreement:
<TABLE>    
<CAPTION>

PRIME FUND
<S>                                                    <C>
Period ended 12/31/94*                                 $   29,307
Year ended 12/31/95                                       186,608
Year ended 12/31/96                                       208,805

SHORT-TERM BOND FUND
Period ended 12/31/94*                                     21,656
Year ended 12/31/95                                        93,087
Year ended 12/31/96                                       106,637

CORE BOND FUND
Period ended 12/31/94*                                     43,535
Year ended 12/31/95                                       181,925
Year ended 12/31/96                                       258,828

BALANCED FUND
Period ended 12/31/94*                                     75,006
Year ended 12/31/95                                       342,532
Year ended 12/31/96                                       431,541

VALUE EQUITY FUND
Period ended 12/31/94*                                    360,634
Year ended 12/31/95                                     1,668,405
Year ended 12/31/96                                     2,088,712

SMALL CAP VALUE EQUITY FUND
Period ended 12/31/94*                                     68,195
Year ended 12/31/95                                       303,658
Year ended 12/31/96                                       361,815

INTERNATIONAL EQUITY FUND
Period ended 12/31/94*                                     38,056
Year ended 12/31/95                                       181,945
Year ended 12/31/96                                       275,670
</TABLE>      

*The Funds commenced operations on October 3, 1994.

INVESTMENT SUBADVISERS
    
Securities held by the Funds are also frequently held by MassMutual investment
accounts and by other investment companies and accounts for which MassMutual,
Babson or HarbourView act as investment adviser or sub-adviser. If the same
security is purchased or sold for any Fund and such accounts or companies at or
about the same time, such purchases or sales normally will be combined, to the
extent practicable, and will be allocated as nearly as practicable on a pro rata
basis in proportion to the amounts to be purchased or sold for each. In
determining the amounts to be purchased and sold, the main factors to be
considered will be the investment objectives of the respective portfolios, the
relative size of portfolio holdings of the same or comparable security,
availability of cash for investment by the various portfolios and the size of
their respective investment commitments. It is believed that the ability of the
Funds to participate in larger volume transactions will, in most cases, produce
better execution for      

                                      B-17
<PAGE>
 
    
the Funds. In some cases, however, this procedure could have a detrimental
effect on the price and amount of a security available to a Fund or the price at
which a security may be sold. It is the opinion of the Trust's management that
such execution advantage and the desirability of retaining MassMutual, Babson,
and HarborView as advisers of the Funds outweigh the disadvantages, if any,
which might result from this procedure.      
    
Babson is a wholly-owned subsidiary of DLB Acquisition Corporation, an indirect,
controlled subsidiary of MassMutual.  HarbourView is a wholly owned subsidiary
of OppenheimerFunds, Inc. ("OFI"), which is a wholly owned subsidiary of
Oppenheimer Acquisition Corporation, a holding company owned in part by senior
management of OFI and ultimately controlled by MassMutual.  MassMutual, Babson
and HarbourView are each registered with the SEC as investment advisers.      

                                THE DISTRIBUTOR
                                ---------------
    
The Trust's shares are continuously distributed by OppenheimerFunds Distributor,
Inc. (the "Distributor") pursuant to a Distribution Agreement with the Trust
dated [October 24, 1997].  The Distributor pays commissions to its selling
dealers as well as the cost of printing and mailing Prospectuses to potential
investors and of any advertising incurred by it in connection with distribution
of shares of the Funds. MML Investor Services, Inc. serves as the 
sub-distributor to the Trust pursuant to an agreement with the Distributor dated
September 8, 1997.     

    
     The Distribution Agreement will continue in effect for successive one-year 
periods, provided that each such continuance is specifically approved (i) by the
vote of a majority of the Trustees or by a vote of a majority of the shares of 
the Trust; and (ii) by a majority of the Trustees who are not parties to the 
Distribution Agreement or interested persons of the Trust (as defined in the 
1940 Act), cast in person at a meeting called for the purpose of voting on such 
approval.     
    
Administrative Services Plans for Class A Shares

     The Trust has adopted, with respect to the Class A shares of each Fund, an
Administrative Services Plan (each such plan, a "Plan") pursuant to Rule 12b-1
under the 1940 Act. the Trustees of the Trust, including a majority of the 
Trustees who are not interested persons of the Trust and who have no direct or 
indirect financial interest in the operation of the Plans, by vote cast in 
person at a meeting called for the purpose of voting on such Plans, approved the
Plan on [Date]. Under the terms of each Plan, the Trust is permitted to 
reimburse, out of the assets attributable to the Class A shares of each 
applicable Fund, in an amount up to 0.25% on an annual basis of the average 
aggregate net assets of that class. MassMutual for the provision of services to 
Class A shareholders by it, the Distributor and investment dealers [and to 
reimburse certain other distribution related expenses]. These services may 
include, but are not limited to, the following: providing facilities to answer 
questions from prospective investors about a Fund; receiving and answering 
correspondence, including requests for prospectuses and statements of additional
information; preparing, printing and delivering prospectuses and shareholder 
reports to prospective shareholders; complying with federal and state 
securities laws pertaining to the sale of Class A shares; assisting investors in
completing application forms and selecting dividend and other account options; 
receiving, aggregating and processing shareholder orders; furnishing shareholder
sub-accounting; providing and maintaining elective shareholder services such as 
check writing and wire transfer services; providing and maintaining 
pre-authorized investment plans; communicating periodically with shareholders; 
acting as the sole shareholder of record and nominee for shareholders; 
maintaining accounting records for shareholders; and answering questions and 
handling correspondence from shareholders about their accounts.

     Each Plan provides that it may not be amended to materially increase the 
costs which Class A shareholders may bear under the Plan without the approval of
a majority of the outstanding Class A shares of the Fund.

     Each Plan provides that it may not take effect until approved by vote of a 
majority of both (i) the Trustees of the Trust and (ii) the Trustees of the 
Trust who are not interested persons of the Trust and have no direct or indirect
financial interest in the operation of the Plan or any agreements related to it.
Each Plan provides that it shall continue in effect so long as such continuance 
is specifically approved at least annually by (i) Trustees of the Trust and (ii)
Trustees of the Trust who are not interested persons of the Trust and have no 
direct or indirect financial interest in the operation of the Plan or any 
agreements related to it. Each Plan provides that the Distributor and MassMutual
shall provide to the Trustees, and the Board shall review at least quarterly, a 
written report of the amounts so expended and the purposes for which such 
expenditures were made.

     Rules of the NASD limit the amount of distribution fees that may be paid by
mutual funds. "Service fees," defined to mean fees paid for providing 
shareholder services or the maintenance of accounts (but not transfer agency 
services) are not subject to the limits. The Trust believes that most, if not 
all, of the fees paid pursuant to the Plan will qualify as "service fees" and 
therefore will not be limited by NASD rules.

     The Plans were not in effect prior to the date of this Statement of 
Additional Information and no payments were made thereunder in prior fiscal 
periods.     

         

    
Under 12b-1 plans for classes of shares that no longer exist, the Trust paid
distribution and service fees in 1996 of approximately $856 for the Prime Fund,
$896 for the Short-Term Bond Fund, $1,098 for the Core Bond Fund, $1,154 for the
Balanced Fund, $1,074 for the Value Equity Fund, $1,195 for the Small Cap Value
Equity Fund, and $915 for the International Equity Fund, of which approximately
$4,897 was paid to the Distributor for distribution services and approximately
$2,292 was paid to MassMutual for sales related expenses plans.       

                                      B-18
<PAGE>
 
            CUSTODIAN, DIVIDEND DISBURSING AGENT AND TRANSFER AGENT
            -------------------------------------------------------
    
Investors Bank & Trust Company, located at 200 Clarendon Street, Boston,
Massachusetts 02116, is the custodian of the Funds' investments (the
"Custodian") and is the Funds' transfer agent and dividend disbursing agent (the
"Transfer Agent").  The Custodian and the Transfer Agent do not assist in, and
are not responsible for, the investment decisions and policies of the 
Funds.     

                         INDEPENDENT PUBLIC ACCOUNTANT
                         -----------------------------
    
Coopers & Lybrand L.L.P., located at 2300 Bay Bank Tower, 1500 Main Street,
Springfield, Massachusetts 01101, is the Trust's independent public accountants.
    
                      PORTFOLIO TRANSACTIONS AND BROKERAGE
                      ------------------------------------

Purchases and sales of securities on a securities exchange are effected by
brokers, and each Fund which purchases or sells securities on a securities
exchange pays a brokerage commission for this service.  In transactions on stock
exchanges in the United States, these commissions are negotiated, whereas on
many foreign stock exchanges these commissions are fixed.  In the overthecounter
markets, securities are generally traded on a "net" basis with dealers acting as
principal for their own accounts without a stated commission, although the price
of the security usually includes a profit to the dealer.  In underwritten
offerings, securities are purchased at a fixed price which includes an amount of
compensation to the underwriter, generally referred to as the underwriter's
concession or discount.  On occasion, certain money market instruments may be
purchased directly from an issuer, in which case no commissions or discounts are
paid.

The primary consideration in placing portfolio security transactions with
broker-dealers for execution is to obtain and maintain the availability of
execution at the most favorable prices and in the most effective manner
possible.  Each adviser attempts to achieve this result by selecting
brokerdealers to execute portfolio transactions on the basis of their
professional capability, the value and quality of their brokerage services and
the level of their brokerage commissions.

Under each Advisory Agreement and as permitted by Section 28(e) of the
Securities Exchange Act of 1934, an adviser may cause a Fund to pay a broker-
dealer which provides brokerage and research services to the adviser an amount
of commission for effecting a securities transaction for a Fund in excess of the
amount other broker-dealers would have charged for the transaction if the
adviser determines in good faith that the greater commission is reasonable in
relation to the value of the brokerage and research services provided by the
executing broker-dealer viewed in terms of either a particular transaction or
the adviser's overall responsibilities to the Trust and to its other clients.
The term "brokerage and research services" includes; advice as to the value of
securities, the advisability of investing in, purchasing, or selling securities,
and the availability of securities or of purchasers or sellers of securities;
furnishing analyses and reports concerning issuers, industries, securities,
economic factors and trends, portfolio strategy and the performance of accounts;
and effecting securities transactions and performing functions incidental
thereto such as clearance and settlement.

Although commissions paid on every transaction will, in the judgment of the
adviser, be reasonable in relation to the value of the brokerage services
provided, commissions exceeding those which another broker might charge may be
paid to broker-dealers (except the Distributor) who were selected to execute
transactions on behalf of the Trust and the adviser's other clients in part for
providing advice as to the availability of securities or of purchasers or
sellers of securities and services in effecting securities transactions and
performing functions incidental thereto such as clearance and settlement.

Broker-dealers may be willing to furnish statistical, research and other factual
information or services ("Research") to an adviser for no consideration other
than brokerage or underwriting commissions.  Securities may be bought or sold
through such brokerdealers, but at present, unless otherwise directed by the
Trust, a commission higher than one charged elsewhere will not be paid to such a
firm solely because it provided Research to the adviser.  Research provided by
brokers is used for the benefit of all of the adviser's clients and not solely
or necessarily for the benefit of the Trust. The adviser attempts to evaluate
the quality of Research provided by brokers. Results of this effort are
sometimes used by the adviser as a consideration in the selection of brokers to
execute portfolio transactions.

                                      B-19
<PAGE>
 
The investment advisory fee that the Trust pays on behalf of each Fund to
MassMutual will not be reduced as a consequence of an adviser's receipt of
brokerage and research services.  To the extent the Trust's portfolio
transactions are used to obtain such services, the brokerage commissions paid by
the Trust will exceed those that might otherwise be paid, by an amount which
cannot now be determined.  Such services would be useful and of value to an
adviser in serving both the Trust and other clients and, conversely, such
services obtained by the placement of brokerage business of other clients would
be useful to an adviser in carrying out its obligations to the Trust.
    
Brokerage commissions paid by the Funds for the fiscal years ended December 31,
1996 and December 31, 1995 and for the period ended December 31, 1994,
respectively, were as follows:   Balanced Fund $115,756, $87,156 and $20,315;
Value Equity Fund $933,716, $643,882 and $128,536; Small Cap Value Equity Fund
$430,964, $291,912 and $50,261; and International Equity Fund $1,103,103,
$1,218,802 and $55,656.  Approximately $24,000 of the brokerage commissions paid
by the Funds for the fiscal year ended December 31, 1996 were paid to Jefferies
& Co., Inc.  A Trustee of the Trust is a director of the parent company of
Jefferies & Co., Inc.      

The Prime Fund, ShortTerm Bond Fund and the Core Bond Fund did not incur
brokerage commissions during these periods.

                         SHAREHOLDER INVESTMENT ACCOUNT
                         ------------------------------

A Shareholder Investment Account is established for each Investor in the
Funds./1/  Each account contains a record of the shares of each Fund maintained
by the Transfer Agent.  No share certificate will be issued.  Whenever a
transaction takes place in the Shareholder Investment Account, the Investor will
be mailed a statement showing the transaction and the status of the account.

                              REDEMPTION OF SHARES
                              --------------------
    
With respect to each Fund, the Trustees may suspend the right of redemption,
postpone the date of payment or suspend the determination of net asset value (a)
for any period during which the New York Stock Exchange ("NYSE") is closed
(other than for customary weekend and holiday closing), (b) for any period
during which trading in the markets the Fund normally uses is restricted, (c)
when an emergency exists as determined by the SEC so that disposal of the Fund's
investments or a determination of its net asset value is not reasonably
practicable, or (d) for such other periods as the SEC by order may permit for
the protection of the Trust's shareholders.  While the Trust's Declaration of
Trust would permit it to redeem shares in cash or other assets of the Fund or
both, the Trust has filed an irrevocable election with the SEC to pay in cash
all requests for redemption received from any shareholder if the aggregate
amount of such requests in any 90day period does not exceed the lesser of
$250,000 or 1% of a Fund's net assets.      

                       VALUATION OF PORTFOLIO SECURITIES
                       ---------------------------------
    
The net asset value per share of each Fund is determined by the Transfer Agent
as of the close of the NYSE, currently 4:00 p.m., Eastern Time, on each day the
NYSE is open for trading and the Custodian is open for business.  The NYSE is
not open for trading on New Year's Day, Martin Luther King, Jr. Day, President's
Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day
and Christmas Day and on occasion is closed early or entirely due to weather or
other conditions.

Equity securities are valued on the basis of valuations furnished by a pricing
service, authorized by the Board of Trustees, which provides the last reported
sale price for securities listed on a national securities exchange or on the
NASDAQ national market system, or in the case of overthecounter securities not
so listed, the last reported bid price.  Debt securities (other than shortterm
obligations with a remaining maturity of sixty days or less) are valued on the
basis of valuations furnished by a pricing service, authorized by the Board of
Trustees, which determines valuations taking into account appropriate factors
such as institutionalsize trading in similar groups of securities, yield,
quality, coupon rate, maturity, type of issue, trading characteristics and other
market data.  Money market obligations with a remaining maturity of sixty days
or less are valued at amortized cost unless such value does not      

- -------------------------------
    
/1/ "Investor" includes a plan sponsor, plan fiduciary, trustee, institutional
investor, insurance company separate investment account and/or any other person
or entity described in the Prospectus as an eligible purchaser of shares, that
purchases shares of the Trust. An Investor that is a separate investment account
of MassMutual is referred to as a "SIA Investor." Investors that are purchasing
shares of a fund on behalf of a Plan are sometimes referred to as "Plan
Investors." The term Investor does not include a Plan Participant.     

                                      B-20
<PAGE>
 
    
represent fair value.  All other securities and other assets, including debt
securities the prices for which supplied by a pricing agent are deemed by
MassMutual not to be representative of market values, but excluding money market
instruments with a remaining maturity of sixty days or less and including some
restricted securities and securities for which no market quotation is available,
are valued at fair value in accordance with procedures approved by and
determined in good faith by the Trustees, although the actual calculation may be
done by others.      

Portfolio securities traded on more than one U.S. national securities exchange
or foreign securities exchange are valued at the last price on the business day
as of which such value is being determined at the close of the exchange
representing the principal market for such securities.  All assets and
liabilities expressed in foreign currencies will be converted into U.S. dollars
at the mean between the buying and selling rates of such currencies against U.S.
dollars last quoted by any major bank.  If such quotations are not available,
the rate of exchange will be determined in accordance with policies established
by the Trustees.
    
The proceeds received by each Fund for each issue or sale of its shares, and all
net investment income, realized and unrealized gain will be specifically
allocated to such Fund and constitute the underlying assets of that Fund.  The
underlying assets of each Fund will be segregated on the books of account, and
will be charged with the liabilities in respect of such Fund and with a share of
the general liabilities of the Trust.  Expenses with respect to any two or more
Funds are to be allocated in proportion to the net asset values of the
respective Funds except where allocations of direct expenses can otherwise be
fairly made.  Each class of shares of a Fund will be charged with liabilities
directly attributable to such class, and other Fund expenses are to be allocated
in proportion to the net asset values of the respective classes.      

                             DESCRIPTION OF SHARES
                             ---------------------
    
Under Massachusetts law, shareholders could, under certain circumstances, be
held personally liable for the obligations of the Trust.  However, the Trust's
Declaration of Trust disclaims liability of the shareholders, Trustees, or
officers of the Trust for acts or obligations of the Trust, which are binding
only on the assets and property of the Trust, and requires that notice of such
disclaimer be given in each agreement, obligation, or instrument entered into or
executed by the Trust or the Trustees.  The Trust's Declaration of Trust
provides for indemnification out of the Trust property for all loss and expense
of any shareholder held personally liable for the obligations of the Trust.
Thus, the risk of a shareholder incurring financial loss on account of
shareholder liability is considered remote since it is limited to circumstances
in which the disclaimer is inoperative and the Trust itself would be unable to
meet its obligations.      

                             INVESTMENT PERFORMANCE
                             ----------------------
    
The yield of the Prime Fund, the Short-Term Bond Fund and the Core Bond Fund, as
well as total return figures for all of the Funds, may be provided in reports,
sales literature and advertisements.  Any performance information with respect
to Class S shares will be provided net of any SIA and Fund expenses.      

Yield for each class of shares of such Funds will be based upon a stated 30-day
period and will be computed by dividing the net investment income per share
earned during the period by the maximum offering price per share on the last day
of the period, according to the following formula:

        YIELD = 2 [(a-b + 1)/6/ - 1]
                    -------
                      cd

     Where:   a = dividends and interest earned during the period.
              b = expenses accrued for the period (net of reimbursements, if 
                  any).
              c = the average daily number of shares outstanding during the
                  period that were entitled to receive dividends.
              d = the maximum offering price (which is the net asset value) per
                  share on the last day of the period.

                                      B-21
<PAGE>
 
Each of the Funds may also advertise its total return for each class of shares.
Total return quotations will be based upon a stated period and will be computed
by determining the average annual compounded rate of return over the stated
period that would equate an initial amount invested to the ending redeemable
value of the investment (assuming reinvestment of all distributions), according
to the following formula:

                               P(1 + T)/n/  = ERV

     Where:    P = a hypothetical initial payment of $1000.
               T = average annual total return.
               n = number of years.
             ERV = ending redeemable value at the end of the stated period of a
                   hypothetical $1000 payment made at the beginning of the
                   stated period .

    
The Funds may show total return calculated without giving effect to the
voluntary partial waiver of management fee by MassMutual, which terminated May
1, 1997  ("Standardized Total Return Without Reduction in Management Fee").  See
"Financial Highlights" in the Prospectus.  Each investment performance figure
will be carried to the nearest hundredth of one percent.      

A Fund's yield or total return is not fixed or guaranteed and the Fund's
principal is not insured.  Investment performance quotations should not be
considered to be representations of the performance for any period in the
future.  The yield is a function of available interest rates on securities in
which the Fund invests, which can be expected to fluctuate, as well as of the
quality, maturity and types of portfolio instruments held by the Fund and of the
Fund's operating expenses.  The yield may be affected if, through net sales of
its shares, there is a net investment of new money in the Fund which the Fund
invests at returns different from those being earned on current portfolio
instruments.  Yield may also vary if the Fund experiences net redemptions, which
may require the disposition of some of the Fund's current portfolio instruments.
Total return is a function of the value of the Fund's portfolio securities over
time, which may be expected to fluctuate, as well as of income earned by the
Fund on such securities and of the Fund's operating expenses.
    
Set forth below is the yield for Class S shares of the Prime Fund, Short-Term
Bond Fund and Core Bond Fund for the 30day period ended June 30, 1997.      
    
                YIELD FOR THE 30-DAY PERIOD ENDED JUNE 30, 1997
                          Class S Shares* (Unaudited)      
<TABLE>     
<CAPTION> 

Fund                              Yield
<S>                               <C> 
Prime Fund                        5.44%
Short-Term Bond Fund              5.72%
Core Bond Fund                    6.20%
</TABLE>      
    
*Yield for Class A and Y shares may differ due to different expense structures.
     
                                    TAXATION
                                    --------
    
Each Fund intends to qualify each year and elect to be taxed as a regulated
investment company under Subchapter M of the Internal Revenue Code of 1986, as
amended (the "Code").  In order to qualify as a "regulated investment company,"
a Fund must, among other things:  (a) derive at least 90% of its gross income
from dividends, interest, payments with respect to securities loans, gains from
the sale or other disposition of stock, securities, or foreign currencies, and
other income (including gains from forward contracts) derived with respect to
its business of investing in such stock, securities, or currencies; and (b)
diversify its holdings so that, at the close of each quarter of its taxable
year, (i) at least 50% of the value of its total assets consists of cash, cash
items, U.S. Government securities, and other securities limited generally with
respect to any one issuer to not more than 5% of the total assets of the Fund
and not more than 10% of the outstanding voting securities of such issuer, and
(ii) not more than 25% of the value of its total assets is invested in the
securities of any issuer (other than U.S. Government securities). If a Fund
fails to qualify as a regulated investment company, it will be treated as an
ordinary corporation for federal income tax purposes.      

                                      B-22
<PAGE>
 
As a regulated investment company electing to have its tax liability determined
under Subchapter M, in general a Fund will not be subject to federal income tax
on its ordinary income or capital gains that are distributed.  As a
Massachusetts business trust, a Fund under present law will not be subject to
any excise or income taxes imposed by Massachusetts.

An excise tax at the rate of 4% will be imposed on the excess, if any, of each
Fund's "required distribution" over its actual distributions in any calendar
year.  Generally, the "required distribution" is 98% of the Fund's ordinary
income for the calendar year plus 98% of its capital gain net income recognized
during the one-year period ending on October 31 (or December 31, if the Fund so
elects) plus undistributed amounts from prior years.  Each Fund intends to make
distributions sufficient to avoid imposition of the excise tax.  Distributions
declared by a Fund during October, November or December to shareholders of
record on a date in any such month and paid by the Fund during the following
January will be treated for federal tax purposes as paid by the Fund and
received by shareholders on December 31 of the year in which declared.
    
Except in the case of certain shareholders eligible for preferential tax
treatment, e.g., qualified retirement or pension trusts, shareholders of each
Fund will be subject to federal income taxes on distributions made by the Fund
whether received in cash or additional shares of the Fund.  Distributions by
each Fund of net income and short-term capital gains, if any, will be taxable to
shareholders as ordinary income.  Designated distributions of long-term capital
gains, if any, will be taxable to shareholders as long-term capital gains,
without regard to how long a shareholder has held shares of the Fund.  Under the
Taxpayer Relief Act of 1997, long-term capital gains generally will be subject
to a 28% or 20% tax rate, depending on the holding period in the portfolio
investment.      

Dividends and distributions on Fund shares received shortly after their
purchase, although in effect a return of capital, are subject to federal income
taxes.  Investment income and gains received by a Fund from sources outside the
United States might be subject to foreign taxes which are withheld at the
source.  The effective rate of these foreign taxes cannot be determined in
advance because it depends on the specific countries in which its assets will be
invested, the amount of the assets invested in each such country and the
possible applicability of treaty relief.
    
The International Equity Fund may be eligible to make an election under Section
853 of the Code so that any of its shareholders subject to federal income taxes
will be able to claim a credit or deduction on their income tax returns for, and
will be required to treat as part of the amounts distributed to them, their pro
rata portion of qualified taxes paid by the Fund to foreign countries.  The
ability of shareholders of the Fund to claim a foreign tax credit is subject to
certain limitations imposed by Section 904 of the Code, which in general limits
the amount of foreign tax that may be used to reduce a shareholder's U.S. tax
liability to that amount of U.S. tax which would be imposed on the amount and
type of income in respect of which the foreign tax was paid.  In addition, the
ability of shareholders to claim a foreign tax credit is subject to a holding
period requirement.  A shareholder who for U.S. income tax purposes claims a
foreign tax credit in respect of Fund distributions may not claim a deduction
for foreign taxes paid by the Fund, regardless of whether the shareholder
itemizes deductions.  Also, under Section 63 of the Code, no deduction for
foreign taxes may be claimed by shareholders who do not itemize deductions on
their federal income tax returns.  It should also be noted that a tax-exempt
shareholder, like other shareholders, will be required to treat as part of the
amounts distributed to it a pro rata portion of the income taxes paid by the
Fund to foreign countries.  However, that income will generally be exempt from
U.S. taxation by virtue of such shareholder's tax-exempt status and such a
shareholder will not be entitled to either a tax credit or a deduction with
respect to such income.  The International Equity Fund will notify shareholders
each year of the amount of dividends and distributions and the shareholder's pro
rata share of qualified taxes paid by the Fund to foreign countries.  Investment
by a Fund in "passive foreign investment companies" could subject the Fund to
a U.S. federal income tax or other charge on the proceeds from the sale of its
investment in such a company; however, this tax can be avoided by making an
election to mark such investments to market annually or to treat the passive
foreign investment company as a "qualified electing fund."

Redemptions and exchanges of each Fund's shares are taxable events and,
accordingly, shareholders subject to federal income taxes may realize gains and
losses on these transactions.  If shares have been held for more than one
year, gain or loss realized will be long-term capital gain or loss, provided the
shareholder holds the shares as a capital asset.  Under the Taxpayer Relief Act
of 1997, long-term capital gains generally will be subject to a 28% or 20% tax
rate depending on the Investor's holding period in Fund shares.  However, a loss
on the sale of shares held for six months or less will be treated as a long-term
capital loss to the extent of any long-term capital gain dividend      

                                      B-23
<PAGE>
 
    
paid to the shareholder with respect to such shares. Furthermore, no loss will
be allowed on the sale of Fund shares to the extent the shareholder acquired
other shares of the same Fund within 30 days prior to the sale of the loss
shares or 30 days after such sale. The state and local tax effects of
distributions received from a Fund, and any special tax considerations
associated with foreign investments of the Fund, should be examined by investors
with regard to their own tax situation.      

A Fund's transactions in foreign currency-denominated debt instruments and its
hedging activities will likely produce a difference between its book income and
its taxable income. This difference may cause a portion of the Fund's
distributions of book income to constitute returns of capital for tax purposes
or require the Fund to make distributions exceeding book income in order to
permit the Fund to continue to qualify, and be taxed under Subchapter M of the
Code, as a regulated investment company.
    
Under federal income tax law, a portion of the difference between the purchase
price of zero-coupon securities in which a Fund has invested and their face
value ("original issue discount") is considered to be income to the Fund each
year even though the Fund will not receive cash interest payments from these
securities. This original issue discount (imputed income) will make up a part of
the net investment income of the Fund which must be distributed to shareholders
in order to maintain the qualification of the Fund as a regulated investment
company and to avoid federal income tax at the level of the Fund.    
 
The foregoing is a general and abbreviated summary of the applicable provisions
of the Code and regulations currently in effect.  For the complete provisions,
reference should be made to the pertinent Code sections and regulations.  The
Code and regulations are subject to change by legislative or administrative
action.  This discussion of the federal income tax treatment of the Fund and its
shareholders does not describe in any respect the tax treatment of any
particular arrangement, e.g., tax-exempt trusts or insurance products, pursuant
to which or by which investments in the Fund may be made.

                                    EXPERTS
                                    -------
    
The financial statements of the MassMutual Prime Fund, MassMutual Short-Term
Bond Fund, MassMutual Core Bond Fund, MassMutual Balanced Fund, MassMutual Value
Equity Fund, MassMutual Small Cap Value Equity Fund, and MassMutual
International Equity Fund included in this Statement of Additional Information
for each period through December 31, 1996 have been included herein in reliance
on the report of Coopers & Lybrand L.L.P., independent accountants, given on the
authority of that firm as experts in accounting and auditing.

THE NAME MASSMUTUAL INSTITUTIONAL FUNDS IS THE DESIGNATION OF THE TRUSTEES UNDER
A DECLARATION OF TRUST DATED MAY 28, 1993, AS AMENDED FROM TIME TO TIME.  THE
OBLIGATIONS OF SUCH TRUST ARE NOT PERSONALLY BINDING UPON, NOR SHALL RESORT BE
HAD TO THE PROPERTY OF ANY OF THE TRUSTEES, SHAREHOLDERS, OFFICERS, EMPLOYEES OR
AGENTS OF SUCH TRUST, BUT ONLY THE PROPERTY OF THE RELEVANT FUND SHALL BE BOUND.
     

                                      B-24
<PAGE>
 
                  APPENDIX - DESCRIPTION OF SECURITIES RATINGS

Although the ratings of fixed-income securities by Standard & Poor's Ratings
Group ("S&P") and Moody's Investors Service, Inc. ("Moody's") are a
generally accepted measurement of credit risk, they are subject to certain
limitations.  For example, ratings are based primarily upon historical events
and do not necessarily reflect the future.  Furthermore, there is a period of
time between the issuance of a rating and the update of the rating, during which
time a published rating may be inaccurate.

The descriptions of the S&P and Moody's commercial paper, bond and municipal
securities ratings are set forth below.

COMMERCIAL PAPER RATINGS:

S&P commercial paper ratings are graded into four categories, ranging from A for
the highest quality obligations to D for the lowest.  The A, A-1 and A-w
categories are described as follows:

 A  Issues assigned this highest rating are regarded as having the greatest
 capacity for timely payment.  Issues in this category are further refined with
 the designations 1, 2, and 3 to indicate the relative degree of safety.

 A-1  This designation indicates that the degree of safety regarding timely
 payment is either overwhelming or very strong.  Those issues determined to
 possess overwhelming safety characteristics will be noted with a plus (+) sign
 designation.

 A-2  Capacity for timely payment on issues with this designation is strong.
 However, the relative degree of safety is not as high as for issues designated
 A-1.

Moody's employs three designations, all judged to be investment grade, to
indicate the relative repayment ability of rated issuers.  The two highest
designations are as follows:

 Issuers (or supporting institutions) rated Prime-1 (or P-1) have a superior
 ability for repayment of senior short-term debt obligations.  Prime-1 (or P-1)
 repayment ability will normally be evidenced by many of the following
 characteristics:

  . Leading market positions in well-established industries.
  . High rates of return on funds employed.
  . Conservative capitalization structure with moderate reliance on debt and
    ample asset protection.
  . Broad margins in earnings coverage of fixed financial charges and high
    internal cash generation.
  . Well-established access to a range of financial markets and assured sources
    of alternate liquidity.

 Issuers (or supporting institutions) rated Prime-2 (or P-2) have a strong 
 ability for repayment of senior short-term debt obligations. This will normally
 be evidenced by many of the characteristics cited above but to a lesser degree.
 Earnings trends and coverage ratios, while sound, may be more subject to
 variation. Capitalization characteristics, while still appropriate, may be more
 affected by external conditions. Ample alternate liquidity is maintained.

BOND RATINGS:

S&P describes its four highest ratings for corporate debt as follows:

 AAA  Debt rated AAA has the highest rating assigned by S&P.  Capacity to pay
 interest and repay principal is extremely strong.

 AA  Debt rated AA has a very strong capacity to pay interest and repay
 principal and differs from the higher rated issues only in a small degree.

 A  Debt rated A has a strong capacity to pay interest and repay principal
 although it is somewhat more susceptible to the adverse effects of changes in
 circumstances and economic conditions than debt in higher rated categories.

 BBB  Debt rated BBB is regarded as having an adequate capacity to pay interest
 and repay principal.  Whereas such debt normally exhibits adequate protection
 parameters, adverse economic conditions or changing circumstances are more
 likely to lead to a weakened capacity to pay interest and repay principal for
 debt in this category than in higher rated categories.

                                      B-25
<PAGE>
 
 The ratings from AA to CCC may be modified by the addition of a plus or minus
 sign to show relative standing within the major rating categories.

Moody's describes its four highest corporate bond ratings as follows:

 Aaa  Bonds which are rated Aaa are judged to be of the best quality. They carry
 the smallest degree of investment risk and are generally referred to as
 "gilt-edged." Interest payments are protected by a large or by an exceptionally
 stable margin and principal is secure. While the various protective elements
 are likely to change, such changes as can be visualized are most unlikely to
 impair the fundamentally strong position of such issues.

 Aa  Bonds which are rated Aa are judged to be of high quality by all standards.
 Together with the Aaa group they compose what are generally known as high grade
 bonds.  They are rated lower than the best bonds because margins of protection
 may not be as large as in Aaa securities or fluctuation of protective elements
 may be of greater amplitude or there may be other elements present which make
 the long-term risks appear somewhat larger than in Aaa securities.

 A  Bonds which are rated A possess many favorable investment attributes and may
 be considered as upper medium grade obligations.  Factors giving security to
 principal and interest are considered adequate but elements may be present
 which suggest a susceptibility to impairment in the future.

 Baa  Bonds which are rated Baa are considered as medium grade obligations,
 i.e., they are neither highly protected nor poorly secured. Interest payments
 and principal security appear adequate for the present but certain protective
 elements may be lacking or may be characteristically unreliable over any great
 length of time. Such bonds lack outstanding investment characteristics and in
 fact have speculative characteristics as well.

 Moody's applies numerical modifiers 1, 2 and 3 in each generic rating
 classification from Aa through B in its corporate bond rating system.  The
 modifier 1 indicates that the security ranks in the higher end of its generic
 rating category; the modifier 2 indicates a mid-range ranking; and the modifier
 3 indicates that the issue ranks in the lower end of its generic rating
 category.

                                      B-26
<PAGE>
 
- --------------------------------------------------------------------------------
Report of Independent Accountants
- --------------------------------------------------------------------------------

To the Board of Trustees and Shareholders of the MassMutual Institutional Funds:


We have audited the accompanying statements of assets and liabilities of the
MassMutual Institutional Funds, comprising, respectively, the Prime, Short-Term
Bond, Core Bond, Balanced, Value Equity, Small Cap Value Equity and
International Equity Funds, (the "Funds"), including the portfolios of
investments, as of December 31, 1996, and the related statement of operations
for the year then ended, the statement of changes in net assets for each of the
two years in the period then ended and the financial highlights for each of the
two years in the period then ended and for the period from October 3, 1994
(commencement of operations) through December 31, 1994. These financial
statements and financial highlights are the responsibility of the Funds'
management. Our responsibility is to express an opinion on these financial
statements and financial highlights on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned as of
December 31, 1996, by correspondence with the custodian and brokers. An audit
also includes assessing the accounting principles used and significant estimates
made by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, the financial statements and financial highlights referred to
above present fairly, in all material respects, the financial position of each
of the respective Funds constituting the MassMutual Institutional Funds as of
December 31, 1996 and the results of their operations for the year then ended,
the changes in their net assets for each of the two years in the period then
ended, and their financial highlights for each of the two years in the period
then ended and for the period from October 3, 1994 (commencement of operations)
through December 31, 1994, in conformity with generally accepted accounting
principles.

                     /s/ Coopers & Lybrand L.L.P.

Springfield, Massachusetts
February 14, 1997

                                                                              75
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996


<TABLE> 
<CAPTION> 
                                        Principal
                                         Amount     Market Value
                                         ------     ------------
<S>                                    <C>          <C> 
SHORT-TERM INVESTMENTS - 100.4%
Commercial Paper -- 99.8%
American Brands, Inc.
 5.320% 2/10/1997                      $ 4,925,000  $  4,895,888
Aristar, Inc.
 5.380% 1/28/1997                        4,445,000     4,427,064
Baxter International
 Inc.
 5.500% 3/21/1997                        4,425,000     4,370,622
Burlington Northern
 Santa Fe Corp.
 5.850% 1/30/1997                        8,800,000     8,758,530
Carter Holt Harvey
 Limited
 5.560% 3/11/1997                        5,270,000     5,213,435
Carter Holt Harvey
 Limited
 5.700% 1/10/1997                        3,855,000     3,849,507
Central and South
 West Corporation
 5.520% 1/14/1997                        9,435,000     9,416,193
Comdisco, Inc.
 5.520% 2/13/1997                        4,015,000     3,988,528
Comdisco, Inc.
 5.580% 3/14/1997                        5,000,000     4,944,000
ConAgra, Inc.
 5.500% 2/18/1997                        7,750,000     7,693,167
Cox Enterprises, Inc.
 5.480% 2/24/1997                        4,185,000     4,150,599
Cox Enterprises, Inc.
 5.530% 3/07/1997                        1,250,000     1,237,361
Crown Cork & Seal
 Company Inc.
 5.650% 3/06/1997                        2,865,000     2,836,477
CSX Corporation
 5.470% 1/31/1997                        4,980,000     4,957,299
CSX Corporation
 5.470% 2/14/1997                        4,450,000     4,420,249
Dana Credit
 Corporation
 5.470% 1/21/1997                        4,165,000     4,152,343
Dana Credit
 Corporation
 5.550% 1/10/1997                          890,000       888,765
Dean Witter, Discover
 & Company
 5.380% 1/31/1997                        4,955,000     4,932,785
Dominion Resources,
 Inc.
 5.500% 1/29/1997                        7,000,000     6,970,055
Dominion Resources,
 Inc.
 5.500% 2/20/1997                        2,300,000     2,282,431
Federal Signal Corp.
 5.450% 1/07/1997                        4,670,000     4,665,758
Frontier Corporation
 5.600% 2/14/1997                        5,385,000     5,348,143
General Motors
 Acceptance
 Corporation
 5.822% 2/04/1997                        7,690,000     7,881,516
Illinois Power
 Company
 5.590% 2/12/1997                        1,140,000     1,132,565
Illinois Power
 Company
 5.680% 2/19/1997                        7,800,000     7,739,697
ITT Corporation
 5.720% 2/06/1997                        4,870,000     4,842,144
ITT Corporation
 5.730% 1/13/1997                        4,900,000     4,890,641
Kerr-McGee Credit
 Corporation
 5.700% 2/11/1997                        6,475,000     6,432,966
Lockheed Martin
 Corporation
 5.480% 3/07/1997                        4,700,000     4,652,478
Lockheed Martin
 Corporation
 5.720% 1/24/1997                        2,290,000     2,281,632
Lockheed Martin
 Corporation
 5.750% 2/07/1997                        2,495,000     2,480,256
NYNEX Corporation
 5.420% 3/26/1997                        5,690,000     5,615,651
ORIX Credit Alliance,
 Inc.
 5.530% 2/28/1997                        4,700,000     4,658,125
ORIX Credit Alliance,
 Inc.
 5.550% 1/16/1997                        4,780,000     4,768,947
Praxair, Inc.
 5.450% 2/25/1997                        3,835,000     3,803,069
Praxair, Inc.
 5.450% 2/27/1997                        2,660,000     2,637,046
Praxair, Inc.
 5.450% 3/27/1997                        2,985,000     2,945,532
Public Service
 Company of Colorado
 5.600% 2/07/1997                        4,870,000     4,841,971
Public Service
 Electric and Gas
 Company
 5.520% 1/24/1997                          410,000       408,554
Ralston Purina
 Company
 5.500% 1/06/1997                        1,475,000     1,473,873
Rite Aid Corporation
 5.600% 3/04/1997                        5,510,000     5,456,859
Service Corporation
 International
 5.480% 2/03/1997                        7,170,000     7,133,983
Texas Utilities
 Electric Co.
 5.590% 2/12/1997                        8,800,000     8,742,609
Textron Financial
 Corporation
 5.550% 3/03/1997                        1,325,000     1,312,427
Textron Financial
 Corporation
 5.670% 3/24/1997                        8,700,000     8,589,027
Timken Company
 5.510% 3/04/1997                        5,000,000     4,951,778
Tyson Foods, Inc.
 5.720% 1/22/1997                        2,300,000     2,292,326
Union Camp Corp.
 5.475% 2/26/1997                        3,390,000     3,361,128
</TABLE> 

                                                                     (Continued)


   The accompanying notes are an integral part of the financial statements.

4
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                        Principal
                                         Amount     Market Value
                                         ------     ------------
<S>                                    <C>          <C> 
Union Pacific
 Corporation
 5.620% 3/18/1997                      $ 7,635,000  $  7,544,737
UOP                  
 5.620% 2/26/1997                        1,645,000     1,630,619
UOP                  
 5.650% 3/05/1997                        7,425,000     7,352,235
UOP                  
 6.000% 2/10/1997                        3,150,000     3,129,000
Western Resources    
 Inc.                
 5.470% 2/27/1997                          490,000       485,756
Western Resources    
 Inc.                
 5.600% 1/15/1997                        8,625,000     8,606,217
Whirlpool Financial  
 Corporation         
 5.600% 1/17/1997                       10,070,000    10,044,936
                                                    ------------- 
                                                     258,519,499
                                                    -------------

Discount Note -- 0.6%
Federal Farm Credit  
 Bank                
 5.230% 8/19/1997                        1,530,000     1,475,260
                                                    ------------- 
                     
TOTAL SHORT-TERM     
INVESTMENTS                                          259,994,759
                                                    ============= 
(Cost $260,002,847)+

TOTAL INVESTMENTS-- 100.4%                           259,994,759

Other Assets/
(Liabilities) - (0.4%)                                  (933,278)
                                                    ------------- 

NET ASSETS-- 100.0%                                 $259,061,481
                                                    ============= 
</TABLE> 

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)











            [The remainder of this page intentionally left blank.]










   The accompanying notes are an integral part of the financial statements.

                                                                               5
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements
- --------------------------------------------------------------------------------

                                                               December 31, 1996
                                                               -----------------
Statement of Assets and Liabilities

<TABLE>
<S>                                                                              <C> 
Assets:
     Short-term investments, at value (cost $260,002,847) (Note 2)............   $       259,994,759
     Cash.....................................................................                 1,293
     Receivables from:
       Fund shares sold.......................................................               967,627
       Investment manager (Note 3)............................................                 9,209
                                                                                 -------------------
         Total assets.........................................................           260,972,888
                                                                                 -------------------

Liabilities:
     Payables for:
       Fund shares redeemed...................................................             1,784,741
       Directors' fees and expenses (Note 3)..................................                 5,177
       Affiliates (Note 3):
         Investment management fees...........................................                95,194
         Administration fees..................................................                17,288
         Service and distribution fees........................................                   220
     Accrued expenses and other liabilities...................................                 8,787
                                                                                 -------------------
         Total liabilities....................................................             1,911,407
                                                                                 -------------------
     Net assets...............................................................   $       259,061,481
                                                                                 ===================

Net assets consist of:
     Paid-in capital..........................................................   $       258,996,044
     Undistributed net investment income......................................                80,676
     Accumulated net realized loss on investments.............................                (7,151)
     Net unrealized depreciation on investments...............................                (8,088)
                                                                                 -------------------
                                                                                 $       259,061,481
                                                                                 ===================
Net assets:
     Class 1..................................................................   $           109,724
                                                                                 ===================
     Class 2..................................................................   $           111,039
                                                                                 ===================
     Class 3..................................................................   $           111,694
                                                                                 ===================
     Class 4..................................................................   $       258,729,024
                                                                                 ===================
Shares outstanding:
     Class 1..................................................................               726.501
                                                                                 ===================
     Class 2..................................................................               734.255
                                                                                 ===================
     Class 3..................................................................               738.294
                                                                                 ===================
     Class 4..................................................................         1,713,473.880
                                                                                 ===================
Net asset value, offering price and
redemption price per share:
     Class 1..................................................................   $            151.03
                                                                                 ===================
     Class 2..................................................................   $            151.23
                                                                                 ===================
     Class 3..................................................................   $            151.29
                                                                                 ===================
     Class 4..................................................................   $            151.00
                                                                                 ===================
</TABLE> 


   The accompanying notes are an integral part of the financial statements.

6
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                              Year ended
                                                                           December 31, 1996
                                                                           -----------------
Statement of Operations
<S>                                                                   <C>
Investment income:
     Interest......................................................    $        14,350,850
                                                                       -------------------
Expenses (Note 1):
     Investment management fees (Note 3)...........................              1,150,292
     Custody fees..................................................                 26,962
     Audit and legal fees..........................................                  8,160
     Directors' fees (Note 3)......................................                 15,247
     Fees waived by the investment manager (Note 3)................                (89,223)
                                                                       -------------------
                                                                                 1,111,438
     Administration fees (Note 3):
       Class 1.....................................................                    605
       Class 2.....................................................                    557
       Class 3.....................................................                    344
       Class 4.....................................................                207,299
     Distribution and service fees (Note 3):
       Class 1.....................................................                    699
       Class 2.....................................................                    163
                                                                       -------------------
         Net expenses..............................................              1,321,105
                                                                       -------------------
         Net investment income.....................................             13,029,745
                                                                       -------------------

Realized and unrealized gain (loss):
     Net realized loss on investment transactions..................                 (5,068)
     Net change in unrealized appreciation (depreciation)
       on investments..............................................                 11,447
                                                                       -------------------
         Net realized and unrealized gain..........................                  6,379
                                                                       -------------------
     Net increase in net assets resulting from operations..........    $        13,036,124
                                                                       ===================

<CAPTION>
                                                                                 Year ended             Year ended
                                                                              December 31, 1996      December 31, 1995
                                                                              -----------------      -----------------
<S>                                                                    <C>                         <C>
Statements of Changes in Net Assets

Increase (Decrease) in Net Assets:
Operations:
     Net investment income..............................................     $        13,029,745    $        12,817,140
     Net realized loss on investment transactions.......................                  (5,068)                (1,781)
     Net change in unrealized appreciation (depreciation)
      on investments....................................................                  11,447                (15,459)
                                                                             -------------------    -------------------
         Net increase in net assets resulting from operations...........              13,036,124             12,799,900
                                                                             -------------------    -------------------

Distributions to shareholders (Note 2):
     From net investment income:
     Class 1............................................................                  (4,288)                (4,178)
     Class 2............................................................                  (4,922)                (4,746)
     Class 3............................................................                  (5,335)                (5,095)
     Class 4............................................................             (13,067,477)           (12,693,331)
                                                                             -------------------    -------------------
         Total distributions from net investment income.................             (13,082,022)           (12,707,350)
                                                                             -------------------    -------------------

Net fund share transactions (Note 5):
     Class 1............................................................                   4,288                  4,178
     Class 2............................................................                   4,922                  4,746
     Class 3............................................................                   5,335                  5,095
     Class 4............................................................               4,838,727             83,297,102
                                                                             -------------------    -------------------
         Increase in net assets from net fund share transactions........               4,853,272             83,311,121
                                                                             -------------------    -------------------
     Total increase in net assets.......................................               4,807,374             83,403,671

Net assets:
     Beginning of period................................................             254,254,107            170,850,436
                                                                             -------------------    -------------------
     End of period (including undistributed net investment income
      of $80,676 and $132,953, respectively)............................     $       259,061,481    $       254,254,107
                                                                             ===================    ===================
</TABLE>

   The accompanying notes are an integral part of the financial statements.    7
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                 Class 1
                                                                                              ------------                     
                                                                           Year ended           Year ended         Period Ended
                                                                            12/31/96             12/31/95           12/31/94+**
                                                                          -----------         ------------         ------------
<S>                                                                       <C>                <C>                 <C> 
Net asset value, beginning of period                                      $   151.05          $    150.39          $    150.00
                                                                          -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                         6.09***              6.90 ***             1.02
  Net realized and unrealized gain (loss) on investments                        0.03                (0.01)                0.42
                                                                          -----------         ------------         ------------
   Total income (loss) from investment operations                               6.12                 6.89                 1.44
                                                                          -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                   (6.14)               (6.23)               (1.05)
                                                                          -----------         ------------         ------------
Net asset value, end of period                                            $   151.03          $    151.05          $    150.39
                                                                          ===========         ============         ============
Total Return                                                                    4.05%                4.58%                0.96%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                             $110                 $105                 $101
  Net expenses to average daily net assets#                                     1.65%                1.65%                1.65%*
  Net investment income to average daily net assets                             3.97%                4.48%                4.07%*

   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                 1.68%                1.68%                1.69%*

<CAPTION> 
                                                                                                 Class 2
                                                                                              ------------                     
                                                                           Year ended           Year ended         Period Ended
                                                                            12/31/96             12/31/95           12/31/94+**
                                                                          -----------         ------------         ------------
<S>                                                                      <C>                <C>                   <C> 
Net asset value, beginning of period                                      $   151.24          $    150.56          $    150.00
                                                                          -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                         6.96***              7.78 ***             1.16
  Net realized and unrealized gain (loss) on investments                        0.04                (0.02)                0.57
                                                                          -----------         ------------         ------------
   Total income (loss) from investment operations                               7.00                 7.76                 1.73
                                                                          -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                   (7.01)               (7.08)               (1.17)
                                                                          -----------         ------------         ------------
Net asset value, end of period                                            $   151.23          $    151.24          $    150.56
                                                                          ===========         ============         ============
Total Return                                                                    4.63%                5.16%                1.15%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                             $111                 $106                 $101
  Net expenses to average daily net assets#                                     1.10%                1.10%                1.10%*
  Net investment income to average daily net assets                             4.52%                5.03%                4.62%*

   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                 1.13%                1.13%                1.14%*
</TABLE> 

+All per share amounts for the period have been restated to reflect a 1-for-15
 reverse stock split effective December 16, 1994. 
*Annualized 
**For the period from October 3, 1994 (commencement of operations) through 
  December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of
   the undistributed income method does not accord with the results of 
   operations.

8  The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                   Class 3
                                                                                                ------------                     
                                                                             Year ended           Year ended         Period Ended
                                                                              12/31/96             12/31/95           12/31/94+**
                                                                            -----------         ------------         ------------
<S>                                                                       <C>                 <C>                  <C> 
Net asset value, beginning of period                                        $   151.32          $    150.61          $    150.00
                                                                            -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                           7.51***              8.33 ***             1.21
  Net realized and unrealized gain (loss) on investments                          0.05                (0.01)                0.61
                                                                            -----------         ------------         ------------
   Total income (loss) from investment operations                                 7.56                 8.32                 1.82
                                                                            -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                     (7.59)               (7.61)               (1.21)
                                                                            -----------         ------------         ------------
Net asset value, end of period                                              $   151.29          $    151.32          $    150.61
                                                                            ===========         ============         ============
Total Return                                                                      5.00%                5.53%                1.21%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                               $112                 $106                 $101
  Net expenses to average daily net assets#                                       0.75%                0.75%                0.75%*
  Net investment income to average daily net assets                               4.86%                5.38%                4.99%*
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                   0.78%                0.78%                0.79%*

<CAPTION> 

                                                                                                   Class 4
                                                                                                ------------                     
                                                                             Year ended           Year ended         Period Ended
                                                                              12/31/96             12/31/95           12/31/94+**
                                                                            -----------         ------------         ------------
<S>                                                                        <C>                 <C>                 <C> 
Net asset value, beginning of period                                        $   151.06          $    150.36          $    150.00
                                                                            -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                           7.85***              8.70 ***             1.55
  Net realized and unrealized gain (loss) on investments                          0.06                (0.02)                0.34
                                                                            -----------         ------------         ------------
   Total income (loss) from investment operations                                 7.91                 8.68                 1.89
                                                                            -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                     (7.97)               (7.98)               (1.53)
                                                                            -----------         ------------         ------------
Net asset value, end of period                                              $   151.00          $    151.06          $    150.36
                                                                            ===========         ============         ============
Total Return@                                                                     5.24%                5.78%                1.26%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                           $258,729             $253,936             $170,548
  Net expenses to average daily net assets#                                     0.5160%              0.5160%              0.5160%*
  Net investment income to average daily net assets                               5.10%                5.61%                5.01%*
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                 0.5509%              0.5468%              0.5605%*
</TABLE> 
+All per share amounts for the period have been restated to reflect a 1-for-15
 reverse stock split effective December 16, 1994. 
*Annualized 
**For the period from October 3, 1994 (commencement of operations) through 
  December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.
@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.

   The accompanying notes are an integral part of the financial statements.    9
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996

<TABLE> 
<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                    <C>         <C> 
BONDS & NOTES - 83.9%
ASSET BACKED SECURITIES -- 7.6%
Capita Equipment
 Receivables Trust
 1996-1, Class A4
 6.280% 6/15/2000      $1,000,000  $  1,001,560
Chase Manhattan Auto
 Grantor Trust 1996-B,
 Class A
 6.610% 9/15/2002       1,829,055     1,841,621
Ford Credit 1994-B
 Grantor Trust
 7.300% 10/15/1999        357,498       361,520
Ford Credit Auto
 Loan Master Trust,
 Series 1992-1
 6.875% 1/15/1999       1,500,000     1,500,465
Ford Credit Auto
 Owner Trust 1996-B,
 Class A-4
 6.300% 1/15/2001       2,000,000     2,007,980
Nissan Auto
 Receivables 1994-A
 Grantor Trust,
 Class A
 6.450% 9/15/1999         626,917       628,484
Railcar Trust No.
 1992-1
 7.750% 6/01/2004       1,196,415     1,250,254
World Omni 1996-A
 Automobile Lease
 Securitization Trust,
 Class A1
 6.300% 6/25/2002       2,500,000     2,508,575
                                    ------------

TOTAL ASSET BACKED
SECURITIES                           11,100,459
                                    ------------
(Cost $11,074,953)

CORPORATE DEBT -- 16.1%
AirTouch
 Communications, Inc.
 7.500% 7/15/2006       1,000,000     1,026,480
America West Airlines
 1996-1, Class A
 6.850% 7/02/2009       2,000,000     1,960,000
Analog Devices, Inc.
 6.625% 3/01/2000       1,000,000       987,300
Associates Corporation
 of North America
 6.750% 8/01/2001       1,500,000     1,505,505
Bell Atlantic Financial
 Services, Inc.
 6.610% 2/07/2000       2,000,000     2,012,380
CSC Enterprises 144A
 6.500% 11/15/2001      2,000,000     1,992,380
Ford Motor Credit
 Company
 9.350% 6/10/1997       1,000,000     1,015,200
General American
 Transportation
 Corporation
 6.750% 3/01/2006       1,000,000       971,900
Lockheed Martin
 Corporation
 7.700% 6/15/2008       1,000,000     1,046,230
McDonnell Douglas
 Corporation
 6.875% 11/01/2006      1,000,000       981,260
Norfolk Southern
 Corporation
 7.400% 9/15/2006       1,000,000     1,015,570
NYNEX Capital
 Funding Company
 7.450% 5/01/1997       1,000,000     1,005,680
ORIX Credit Alliance,
 Inc. 144A
 6.480% 4/20/1999       2,000,000     1,997,600
Polaroid Corporation
 7.250% 1/15/1997       1,500,000     1,500,330
Rite Aid Corporation
 6.700% 12/15/2001      1,000,000       998,090
W.R. Grace & Co.
 8.000% 8/15/2004       3,240,000     3,430,253
                                    ------------
TOTAL CORPORATE DEBT                 23,446,158
                                    ------------
(Cost $23,230,308)

U.S. GOVERNMENT
AGENCY OBLIGATIONS -- 16.9%
Federal Home Loan Mortgage Corporation 
(FHLMC) -- 3.0%
Collateralized Mortgage Obligations -- 2.7%
FHLMC Series 1693
 Class G
 6.000% 7/15/2007       2,000,000     1,946,240
FHLMC Series 1704
 Class PE
 6.000% 7/15/2007       2,000,000     1,972,500
                                    ------------
                                      3,918,740
                                    ------------

Pass-Through Securities -- 0.3%
FHLMC
 4.750% 2/01/1997 -
        9/01/2006         531,541       508,060
                                    ------------
                                      4,426,800
                                    ------------

Federal National Mortgage Association
(FNMA) -- 3.9%
Collateralized Mortgage Obligations -- 2.7%
FNMA Series 1992-86
 Class C
 7.000% 6/25/2003          57,873        57,709
FNMA Series 1993-175
 Class PL
 5.000% 10/25/2002      1,390,909     1,381,770
FNMA Series 1993-71
 Class PG
 6.250% 7/25/2007       2,500,000     2,471,875
                                    ------------
                                      3,911,354
                                    ------------

Pass-Through Securities -- 1.2%
FNMA
 8.000% 5/01/2013         832,639       856,772
FNMA
 9.000% 10/01/2009        864,176       918,023
                                    ------------
                                      1,774,795
                                    ------------
                                      5,686,149
                                    ------------
</TABLE> 
                                                                     (Continued)

12 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                       <C>       <C> 
Government National Mortgage Association 
(GNMA) -- 1.3%
Pass-Through Securities -- 1.3%
GNMA
 8.000% 5/15/2001 -
         11/15/2007    $1,808,533  $  1,868,991
                                   -------------

U.S. Government Guaranteed Notes -- 8.7%
1991-A Jacksonville,
 FL
 8.400% 8/01/1997       1,150,000     1,167,250
1991-A St. Louis, MO
 8.400% 8/01/1997       3,350,000     3,400,250
1994-A Baxter
 Springs, KS
 6.310% 8/01/2001         500,000       497,390
1994-A Detroit, MI
 6.310% 8/01/2001         450,000       447,651
1994-A Jacksonville,
 FL
 6.310% 8/01/2001       1,485,000     1,477,248
1994-A Los Angeles
 County, CA
 6.310% 8/01/2001         225,000       223,826
1994-A Tacoma, WA
 6.310% 8/01/2001         195,000       193,982
1994-A Trenton, NJ
 6.310% 8/01/2001         145,000       144,243
U.S. Dept. of Housing
 and Urban
 Development, Series
 1995-A
 8.080% 8/01/1998       3,000,000     3,090,000
U.S. Dept. of Housing
 and Urban
 Development, Series
 1996-A
 6.440% 8/01/1999       2,000,000     2,012,500
                                   -------------
                                     12,654,340
                                   -------------

TOTAL U.S. GOVERNMENT
AGENCY OBLIGATIONS                   24,636,280
                                   -------------
(Cost $24,077,001)

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                  <C>           <C> 
U.S. TREASURY OBLIGATIONS -- 43.3%
U.S. Treasury Notes
U.S. Treasury Note
 5.750% 8/15/2003    $  6,000,000  $  5,820,000
U.S. Treasury Note
 7.125% 2/29/2000      22,000,000    22,649,660
U.S. Treasury Note
 7.250% 5/15/2004      15,200,000    15,993,288
U.S. Treasury Note
 8.875% 2/15/1999      17,500,000    18,514,475
                                   -------------

TOTAL U.S. TREASURY
OBLIGATIONS                          62,977,423
                                   -------------
(Cost $62,760,329)

TOTAL BONDS & NOTES                 122,160,320
                                   -------------
(Cost $121,142,591)

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                    <C>         <C> 
SHORT-TERM INVESTMENTS -- 14.7%
Commercial Paper
Bausch & Lomb Inc.
 5.600% 1/24/1997    $  4,435,000  $  4,419,133
Countrywide Home
 Loans, Inc.
 5.970% 1/14/1997         780,000       778,318
Crown Cork & Seal
 Company Inc.
 5.720% 1/09/1997         490,000       489,377
Crown Cork & Seal
 Company Inc.
 5.830% 2/13/1997       1,480,000     1,469,694
Crown Cork & Seal
 Company Inc.
 5.950% 2/13/1997         520,000       516,304
Dana Credit
 Corporation
 5.650% 1/30/1997         510,000       507,679
Illinois Power
 Company
 5.540% 1/16/1997       5,360,000     5,347,628
NYNEX Corporation
 6.250% 1/03/1997       4,360,000     4,358,486
ORIX Credit Alliance,
 Inc.
 6.080% 2/03/1997       1,210,000     1,203,256
Public Service
 Company of Colorado
 5.550% 1/03/1997         472,000       471,855
Public Service
 Electric and Gas
 Company
 5.600% 1/09/1997       1,840,000     1,837,710
                                   -------------

TOTAL SHORT-TERM
INVESTMENTS                          21,399,440
                                   -------------
(At Amortized Cost)

TOTAL INVESTMENTS -- 98.6%           143,559,760
(Cost $142,542,031)[

Other Assets/
(Liabilities) - 1.4%                  1,973,649
                                   -------------

NET ASSETS-- 100.0%                $145,533,409
                                   -------------
</TABLE> 

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)


144A: Securities exempt from registration under rule 144A of the Securities Act
 of 1933. The Securities may be resold in transactions exempt from registration,
 normally to qualified institutional buyers.

   The accompanying notes are an integral part of the financial statements.   13
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                                                                                      December 31, 1996
                                                                                      -----------------
<S>                                                                             <C> 
Statement of Assets and Liabilities

Assets:
     Investments, at value (cost $121,142,591) (Note 2).........................   $       122,160,320
     Short-term investments, at amortized cost (Note 2).........................            21,399,440
                                                                                   -------------------
       Total Investments........................................................           143,559,760
     Cash.......................................................................                 1,576
     Receivables from:
       Fund shares sold.........................................................                25,221
       Interest.................................................................             2,325,244
       Investment manager (Note 3)..............................................                 7,243
                                                                                   -------------------
         Total assets...........................................................           145,919,044
                                                                                   -------------------

Liabilities:
     Payables for:
       Fund shares redeemed.....................................................               305,355
       Directors' fees and expenses (Note 3)....................................                 5,177
       Affiliates (Note 3):
         Investment management fees.............................................                57,775
         Administration fees....................................................                10,156
         Service and distribution fees..........................................                   232
     Accrued expenses and other liabilities.....................................                 6,940
                                                                                   -------------------
         Total liabilities......................................................               385,635
                                                                                   -------------------
     Net assets.................................................................   $       145,533,409
                                                                                   -------------------

Net assets consist of:
     Paid-in capital............................................................   $       144,792,097
     Undistributed net investment income........................................                18,783
     Accumulated net realized loss on investments...............................              (295,200)
     Net unrealized appreciation on investments.................................             1,017,729
                                                                                   -------------------
                                                                                   $       145,533,409
                                                                                   ===================

Net assets:
     Class 1....................................................................   $           115,863
                                                                                   ===================
     Class 2....................................................................   $           117,250
                                                                                   ===================
     Class 3....................................................................   $           118,001
                                                                                   ===================
     Class 4....................................................................   $       145,182,295
                                                                                   ===================
Shares outstanding:
     Class 1....................................................................                11,415
                                                                                   ===================
     Class 2....................................................................                11,544
                                                                                   ===================
     Class 3....................................................................                11,599
                                                                                   ===================
     Class 4....................................................................            14,365,202
                                                                                   ===================
Net asset value, offering price and
redemption price per share:
     Class 1....................................................................   $             10.15
                                                                                   ===================
     Class 2....................................................................   $             10.16
                                                                                   ===================
     Class 3....................................................................   $             10.17
                                                                                   ===================
     Class 4....................................................................   $             10.11
                                                                                   ===================
</TABLE> 

14 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                              Year ended
                                                                                          December 31, 1996
                                                                                          -----------------
<S>                                                                                    <C>
Statement of Operations

Investment income:

     Interest.......................................................................    $         8,783,175
                                                                                        -------------------
Expenses (Note 1):
     Investment management fees (Note 3)............................................                606,206
     Custody fees...................................................................                 15,494
     Audit and legal fees...........................................................                  4,657
     Directors' fees (Note 3).......................................................                 15,247
     Fees waived by the investment manager (Note 3).................................                (47,791)
                                                                                        -------------------
                                                                                                    593,813
     Administration fees (Note 3):
       Class 1......................................................................                    628
       Class 2......................................................................                    577
       Class 3......................................................................                    353
       Class 4......................................................................                105,079
     Distribution and service fees (Note 3):
       Class 1......................................................................                    733
       Class 2......................................................................                    171
                                                                                        -------------------
         Net expenses...............................................................                701,354
                                                                                        -------------------
         Net investment income......................................................              8,081,821
                                                                                        -------------------

Realized and unrealized gain (loss):
     Net realized loss on investment transactions...................................               (274,845)
     Net change in unrealized appreciation (depreciation)
       on investments...............................................................               (384,702)
                                                                                        -------------------
         Net realized and unrealized loss...........................................               (659,547)
                                                                                        -------------------
     Net increase in net assets resulting from operations...........................    $         7,422,274
                                                                                        ===================
</TABLE>
   The accompanying notes are an integral part of the financial statements.   15
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                                                                                  Year ended             Year ended
                                                                               December 31, 1996      December 31, 1995
                                                                               -----------------      -----------------
Statements of Changes in Net Assets                                                              
<S>                                                                         <C>                    <C> 
Increase (Decrease) in Net Assets:                                                               
Operations:                                                                                      
     Net investment income                                                     $       8,081,821      $       7,424,141
     Net realized gain (loss) on investment transactions                                (274,845)             2,489,218
     Net change in unrealized appreciation (depreciation)                                        
      on investments                                                                    (384,702)             2,855,699
                                                                               -----------------      -----------------
      Net increase in net assets resulting from operations                             7,422,274             12,769,058
                                                                               -----------------      -----------------
Distributions to shareholders (Note 2):                                                           
     From net investment income:                                                                 
     Class 1                                                                              (5,225)                (5,481)
     Class 2                                                                              (5,891)                (6,066)
     Class 3                                                                              (6,321)                (6,421)
     Class 4                                                                          (8,133,246)            (7,354,246)
                                                                               -----------------      -----------------
      Total distributions from net investment income                                  (8,150,683)            (7,372,214)
                                                                               -----------------      -----------------
     In excess of net investment income:                                                         
     Class 1                                                                                  (1)                    --
     Class 2                                                                                  (1)                    --
     Class 3                                                                                  (1)                    --
     Class 4                                                                              (1,569)                    --
                                                                               -----------------      -----------------
      Total distributions in excess of net investment income                              (1,572)                    --
                                                                               -----------------      -----------------
     From net realized gains:
     Class 1                                                                                 (59)                (2,049)
     Class 2                                                                                 (59)                (2,050)
     Class 3                                                                                 (59)                (2,046)
     Class 4                                                                             (71,288)            (2,256,969)
                                                                               -----------------      -----------------
      Total distributions from net realized gains                                        (71,465)            (2,263,114)
                                                                               -----------------      -----------------
Net fund share transactions (Note 5):
     Class 1                                                                               5,285                  7,530
     Class 2                                                                               5,951                  8,116
     Class 3                                                                               6,381                  8,467
     Class 4                                                                          23,078,364             12,933,618
                                                                               -----------------      -----------------
      Increase in net assets from net fund share transactions                         23,095,981             12,957,731
                                                                               -----------------      -----------------
     Total increase in net assets                                                     22,294,535             16,091,461
Net assets:
     Beginning of period                                                             123,238,874            107,147,413
                                                                               -----------------      -----------------
     End of period (including undistributed net investment
       income of $18,783 and $68,862, respectively)                            $     145,533,409      $     123,238,874
                                                                               =================      =================
</TABLE> 
16 The accompanying notes are an integral part of the financial statements.   
<PAGE>
 
- ------------------------------------------------------------------------------- 
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights

(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                Class 1
                                                                                             ------------                     
                                                                          Year ended           Year ended         Period Ended
                                                                           12/31/96             12/31/95           12/31/94**
                                                                         -----------         ------------         ------------
<S>                                                                      <C>                <C>                  <C> 
Net asset value, beginning of period                                     $    10.19          $      9.89          $     10.00
                                                                         -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                        0.50                 0.55                 0.09
  Net realized and unrealized gain (loss) on investments                      (0.05)                0.49                (0.11)
                                                                         -----------         ------------         ------------
   Total income (loss) from investment operations                              0.45                 1.04                (0.02)
                                                                         -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                  (0.48)               (0.54)               (0.09)
  From net realized gains                                                     (0.01)               (0.20)                   --
                                                                         -----------         ------------         ------------
   Total distributions                                                        (0.49)               (0.74)               (0.09)
                                                                         -----------         ------------         ------------
Net asset value, end of period                                           $    10.15          $     10.19          $      9.89
                                                                         ===========         ============         ============
Total Return                                                                   4.35%               10.54%               (0.17)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                            $116                 $111                 $100
  Net expenses to average daily net assets#                                    1.65%                1.65%                1.65%*
  Net investment income to average daily net assets                            4.86%                5.20%                5.45%*
  Portfolio turnover rate                                                        61%                 114%                  15%
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                               1.68%                1.68%                1.70%*
</TABLE> 
<TABLE> 
<CAPTION> 

                                                                                                Class 2
                                                                                             ------------                     
                                                                          Year ended           Year ended         Period Ended
                                                                           12/31/96             12/31/95           12/31/94**
                                                                         -----------         ------------         ------------
<S>                                                                   <C>                   <C>                 <C> 
Net asset value, beginning of period                                     $    10.19          $      9.89          $     10.00
                                                                         -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                        0.56                 0.61                 0.10
  Net realized and unrealized gain (loss) on investments                      (0.04)                0.49                (0.11)
                                                                         -----------         ------------         ------------
   Total income (loss) from investment operations                              0.52                 1.10                (0.01)
                                                                         -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                  (0.54)               (0.60)               (0.10)
  From net realized gains                                                     (0.01)               (0.20)                  --
                                                                         -----------         ------------         ------------
   Total distributions                                                        (0.55)               (0.80)               (0.10)
                                                                         -----------         ------------         ------------
Net asset value, end of period                                           $    10.16          $     10.19          $      9.89
                                                                         ===========         ============         ============
Total Return                                                                   5.02%               11.11%               (0.09)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                            $117                 $112                 $101
  Net expenses to average daily net assets#                                    1.10%                1.10%                1.10%*
  Net investment income to average daily net assets                            5.41%                5.75%                5.99%*
  Portfolio turnover rate                                                        61%                 114%                  15%
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                               1.13%                1.13%                1.15%*
</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.

   The accompanying notes are an integral part of the financial statements.  17 
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
Financial Highlights

(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                      Class 3
                                                                                                   ------------                     

                                                                                Year ended           Year ended         Period Ended
                                                                                 12/31/96             12/31/95           12/31/94**
                                                                               -----------         ------------         ------------
<S>                                                                         <C>                 <C>                   <C> 
Net asset value, beginning of period                                           $    10.21          $      9.91          $    10.00
                                                                               -----------         ------------         ------------

Income (loss) from investment operations:                                                                                    
  Net investment income                                                              0.60                 0.64                0.10
  Net realized and unrealized gain (loss) on investments                            (0.05)                0.49               (0.09)
                                                                               -----------         ------------         ------------

   Total income (loss) from investment operations                                    0.55                 1.13                0.01
                                                                               -----------         ------------         ------------

Less distributions to shareholders:                                                                                          
  From net investment income                                                        (0.58)               (0.63)              (0.10)
  From net realized gains                                                           (0.01)               (0.20)                 --
                                                                               -----------         ------------         ------------

   Total distributions                                                              (0.59)               (0.83)              (0.10)
                                                                               -----------         ------------         ------------

Net asset value, end of period                                                 $    10.17          $     10.21          $     9.91
                                                                               ===========         ============         ============

Total Return                                                                         5.28%               11.46%               0.13%
Ratios / Supplemental Data:                                                                                                  
  Net assets, end of period (000's)                                                  $118                 $112                $100
  Net expenses to average daily net assets#                                          0.75%                0.75%               0.75%*

  Net investment income to average daily net assets                                  5.76%                6.10%               6.36%*
  Portfolio turnover rate                                                              61%                 114%                 15%
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                     0.79%                0.78%               0.80%*


<CAPTION> 

                                                                                                      Class 4
                                                                                                   ------------                     

                                                                                Year ended           Year ended         Period Ended
                                                                                 12/31/96             12/31/95           12/31/94**
                                                                               -----------         ------------         ------------
<S>                                                                         <C>                  <C>                    <C> 
Net asset value, beginning of period                                           $    10.15          $      9.85          $    10.00
                                                                               -----------         ------------         ------------
Income (loss) from investment operations:                                                                                 
  Net investment income                                                              0.60                 0.66                0.16
  Net realized and unrealized gain (loss) on investments                            (0.03)                0.50               (0.15)
                                                                               -----------         ------------         ------------
   Total income (loss) from investment operations                                    0.57                 1.16                0.01
                                                                               -----------         ------------         ------------
Less distributions to shareholders:                                                                                       
  From net investment income                                                        (0.60)               (0.66)              (0.16)
  From net realized gains                                                           (0.01)               (0.20)                 --
                                                                               -----------         ------------         ------------
   Total distributions                                                              (0.61)               (0.86)              (0.16)
                                                                               -----------         ------------         ------------
Net asset value, end of period                                                 $    10.11          $     10.15          $     9.85
                                                                               ==========          ============         ============
Total Return@                                                                        5.57%               11.77%               0.13%
Ratios / Supplemental Data:                                                                                               
  Net assets, end of period (000's)                                              $145,182             $122,904            $106,846
  Net expenses to average daily net assets#                                        0.5190%              0.5190%             0.5190%*

  Net investment income to average daily net assets                                  6.00%                6.32%               6.37%*

  Portfolio turnover rate                                                              61%                 114%                 15%
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                   0.5545%              0.5524%             0.5654%*

</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.

18 The accompanying notes are an integral part of the financial statements.  
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996
<TABLE> 
<CAPTION> 

                                  Principal
                                   Amount     Market Value
                                   ------     ------------
<S>                                <C>        <C> 
BONDS & NOTES - 97.0%
ASSET BACKED SECURITIES -- 8.1%
Capita Equipment
 Receivables Trust
 1996-1, Class A4
 6.280% 6/15/2000                 $3,000,000  $  3,004,680
Chase Manhattan Auto  
 Grantor Trust 1996-B,
 Class A              
 6.610% 9/15/2002                  4,572,639     4,604,053
Daimler-Benz Auto     
 Grantor Trust 1995-A,
 Class A              
 5.850% 5/15/2002                  2,505,290     2,503,712
Daimler-Benz Vehicle  
 Trust 1994-A         
 5.950% 12/15/2000                   220,873       221,079
Ford Credit 1994-B    
 Grantor Trust        
 7.300% 10/15/1999                   536,247       542,280
Ford Credit Auto      
 Loan Master Trust,   
 Series 1992-1        
 6.875% 1/15/1999                  2,000,000     2,000,620
Ford Credit Auto      
 Owner Trust 1996-B,  
 Class A-4            
 6.300% 1/15/2001                  5,000,000     5,019,950
Keystone Auto         
 Grantor Trust 1996-B,
 Class A 144A         
 6.150% 4/15/2003                  2,801,590     2,799,349
Nissan Auto           
 Receivables 1994-A   
 Grantor Trust,       
 Class A              
 6.450% 9/15/1999                  1,253,833     1,256,967
Railcar Trust No.     
 1992-1               
 7.750% 6/01/2004                  1,395,818     1,458,629
World Omni 1995-A     
 Automobile Lease     
 Securitization Trust,
 Class A              
 6.050% 11/25/2001                 2,835,307     2,838,852

<CAPTION> 
                                  Principal
                                    Amount     Market Value
                                    ------     ------------
<S>                                 <C>        <C> 
World Omni 1996-A     
 Automobile Lease     
 Securitization Trust,
 Class A1             
 6.300% 6/25/2002                  2,650,000     2,659,090
                                               ------------
                      
TOTAL ASSET BACKED    
SECURITIES                                      28,909,261
                                               ------------
(Cost $28,855,243)

CORPORATE DEBT -- 33.0%
AirTouch
 Communications, Inc.
 7.500% 7/15/2006                   3,000,000     3,079,440
America West Airlines              
 1996-1, Class A                   
 6.850% 7/02/2009                   4,000,000     3,920,000
American Airlines, Inc.  
 9.780% 11/26/2011                  2,000,000     2,277,500
AMR Corporation (D)                
 9.000% 8/01/2012                   2,000,000     2,263,880
Analog Devices, Inc. (D)                     
 6.625% 3/01/2000                   1,500,000     1,480,950
Associates Corporation   
 of North America        
 6.750% 8/01/2001                   2,000,000     2,007,340
Associates Corporation                       
 of North America (D)              
 7.875% 9/30/2001                   1,500,000     1,573,275
Bell Atlantic Financial  
 Services, Inc.                    
 6.610% 2/04/2000                   1,750,000     1,760,868
BHP Finance (USA)
 Limited
 6.420% 3/01/2026                   3,500,000     3,464,685
Capital Cities/ABC,              
 Inc.                            
 8.875% 12/15/2000                    875,000       944,151
Champion International 
 Corporation           
 6.400% 2/15/2026                   2,500,000     2,386,725
The Charles Schwab     
 Corporation                     
 6.250% 1/23/2003                   2,500,000     2,409,375
Chrysler Corporation   
 10.400% 8/01/1999                  1,500,000     1,537,440
                                 
<CAPTION>                        
                                    Principal
                                     Amount     Market Value
                                     ------     ------------
<S>                                <C>          <C> 
CITGO Petroleum      
 Corporation         
 7.875% 5/15/2006                   1,000,000     1,019,600
Columbia Gas System, 
 Inc.                            
 6.610% 11/28/2002                  3,000,000     2,976,750
Commercial Credit    
 Company (D)            
 7.750% 3/01/2005                   3,000,000     3,133,380
Continental Airlines,            
 Inc., Series 1996-2B
 8.560% 7/02/2014                   1,749,640     1,904,921
Continental Airlines,
 Inc., Series 1996-B
 7.820% 10/15/2013                  2,000,000     2,067,400
Corning Glass Works (D)            
 8.875% 3/15/2016                   1,000,000     1,128,240
English China Clays               
 Delaware Inc. (D)    
 7.375% 10/01/2002                  1,000,000     1,027,760
Equifax Inc.                      
 6.500% 6/15/2003                   1,000,000       973,260
ERAC USA Finance                              
 Company 144A                     
 6.950% 1/15/2006                   1,500,000     1,475,625
FBG Finance Ltd.      
 144A                             
 7.875% 6/01/2016                   3,000,000     3,049,830
Fletcher Challenge Ltd            
 7.750% 6/20/2006                   2,000,000     2,074,100
Foster Wheeler        
 Corporation                      
 6.750% 11/15/2005                  2,000,000     1,932,440
General American
 Transportation
 Corporation
 6.750% 3/01/2006                   3,000,000     2,915,700
General Electric
 Capital Corporation
 8.750% 5/21/2007                   1,500,000     1,700,370
General Telephone
 Company of Florida
 7.500% 8/01/2002                   1,000,000     1,011,310
The Goldman Sachs
 Group, L.P. 144A
 6.200% 2/15/2001                   2,500,000     2,450,000
</TABLE> 
                                                                     (Continued)

   The accompanying notes are an integral part of the financial statements.   21
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                      <C>        <C> 
Harrahs Operating Inc.
 8.750% 3/15/2000      $1,100,000  $  1,113,750
Hercules Incorporated (D)  
 6.625% 6/01/2003       2,000,000     1,979,860
IMCERA Group Inc. (D)    
 6.000% 10/15/2003      1,000,000       957,700
Leucadia National
 Corporation
 7.750% 8/15/2013       2,500,000     2,471,425
Lockheed Martin
 Corporation
 7.700% 6/15/2008       3,000,000     3,138,690
McDonnell Douglas
 Corporation 
 6.875% 11/01/2006      3,000,000     2,943,780
McDonnell Douglas
 Corporation (D)   
 9.250% 4/01/2002       1,500,000     1,675,350
Newmont Mining
 Corporation    
 8.625% 4/01/2002       2,000,000     2,111,380
News America
 Holdings Incorporated
 9.250% 2/01/2013       3,000,000     3,360,870
Norfolk Southern
 Corporation
 7.220% 9/15/2006       3,000,000     3,056,580
Norfolk Southern
 Corporation
 7.400% 9/15/2006       2,000,000     2,031,140
North Finance
 (Bermuda) Limited
 144A
 7.000% 9/15/2005       2,000,000     1,970,000
Pearson Inc. 144A
 7.375% 9/15/2006       3,000,000     3,012,900
Penske Truck Leasing
 Co., L.P.
 7.750% 5/15/1999       1,500,000     1,548,210
Ralston Purina
 Company
 7.750% 10/01/2015      2,000,000     2,050,920
Rite Aid Corporation
 6.700% 12/15/2001      2,000,000     1,996,180
Rolls-Royce Capital
 Inc.
 7.125% 7/29/2003       2,000,000     2,002,980
Scholastic Corporation
 7.000% 12/15/2003      4,000,000     3,992,280
Thomas & Betts
 Corporation (D)   
 8.250% 1/15/2004       2,500,000     2,597,825
Time Warner Inc.
 7.750% 6/15/2005       3,000,000     3,017,790
United Air Lines, Inc.
 10.110% 2/19/2006        939,710     1,040,390
US Air, Inc.
 7.500% 10/15/2009      1,461,057     1,475,667

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                      <C>       <C> 
Valassis
 Communications, Inc.
 9.550% 12/01/2003   $  2,000,000  $  2,081,280
Westinghouse Electric
 Corporation
 8.375% 6/15/2002       1,000,000     1,019,670
W.R. Grace & Co.
 8.000% 8/15/2004       5,000,000     5,293,600
                                   ------------
TOTAL CORPORATE DEBT                117,886,532
                                   ------------
(Cost $114,776,584)

NON - U.S. GOVERNMENT
AGENCY OBLIGATIONS -- 1.1%
Collateralized Mortgage Obligation
Prudential Home
 Mortgage Securities
 1993-26 Class A6
 6.750% 7/25/2008       4,000,000     4,008,720
                                   ------------
(Cost $3,955,000)

U.S. GOVERNMENT
AGENCY OBLIGATIONS -- 20.2%
Federal Home Loan Mortgage Corporation 
(FHLMC) -- 4.6%
Collateralized Mortgage Obligations -- 4.5%
FHLMC Series 1080
 Class D
 7.000% 7/15/2020       2,900,319     2,933,847
FHLMC Series 1322
 Class G
 7.500% 2/15/2007       2,000,000     2,048,120
FHLMC Series 1460
 Class H
 7.000% 5/15/2007       2,000,000     2,020,000
FHLMC Series 1490
 Class PJ
 6.000% 5/15/2007         600,000       589,122
FHLMC Series 1612
 Class PD
 5.750% 5/15/2006       5,000,000     4,915,600
FHLMC Series 1625
 Class EA
 5.750% 3/15/2007       3,500,000     3,436,545
                                   ------------
                                     15,943,234
                                   ------------
Pass-Through Securities -- 0.1%
FHLMC
 9.000% 3/01/2017         368,612       392,225
                                   ------------
                                     16,335,459
                                   ------------
Federal National Mortgage
Association (FNMA) -- 5.6%
Collateralized Mortgage Obligations -- 5.4%
FNMA Series 1989-20
 Class A
 6.750% 4/25/2018       4,267,616     4,107,580
FNMA Series 1992-86
 Class C
 7.000% 6/25/2003         115,745       115,419

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                      <C>       <C> 
FNMA Series 1993-134
 Class GA
 6.500% 2/25/2007    $  5,000,000  $  4,964,050
FNMA Series 1993-175
 Class PL
 5.000% 10/25/2002      1,390,909     1,381,770
FNMA Series 1993-191
 Class PD
 5.400% 3/25/2004       1,500,000     1,487,340
FNMA Series 1993-221
 Class D
 6.000% 12/25/2008      2,500,000     2,390,625
FNMA Series 1996-54
 Class C
 6.000% 9/25/2008       5,000,000     4,800,000
                                   ------------
                                     19,246,784
                                   ------------
Pass-Through Securities -- 0.2%
FNMA
 8.000% 5/01/2013         555,094       571,180
                                   ------------
                                     19,817,964
                                   ------------
Government National Mortgage
Association (GNMA) -- 8.3%
Collateralized Mortgage Obligation -- 0.5%
JHM Acceptance
 Corporation Series E
 Class 5
 8.960% 4/01/2019       1,633,748     1,718,491
                                    -----------
Pass-Through Securities -- 7.8%
GNMA
 6.000% 12/20/2025      5,579,916     5,706,355
GNMA    
 7.000% 7/20/2025 -
          9/20/2025     5,474,412     5,591,443
GNMA
 7.500% 1/15/2017 -
          6/15/2017     7,142,857     7,188,784
GNMA
 8.000% 4/15/2001 -
          3/15/2008     8,808,388     9,102,855
GNMA
 9.000% 12/15/2004 -
          10/15/2009      500,156       532,822
                                   ------------
                                     28,122,259
                                   ------------
                                     29,840,750
                                   ------------
U.S. Government Guaranteed Notes -- 1.7%
1994-A Baxter
 Springs, KS
 5.930% 8/01/1999         700,000       696,500
1994-A Erie, PA
 5.930% 8/01/1999       1,590,000     1,582,050
1994-A Los Angeles
 County, CA
 5.930% 8/01/1999         190,000       189,050

</TABLE> 
                                                                     (Continued)

22 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                      <C>        <C> 
1994-A Montgomery
 County, PA
 5.930% 8/01/1999      $  150,000  $    149,250
1994-A Pohatcong
 Township, NJ
 5.930% 8/01/1999         255,000       253,725
1994-A Rochester, NY
 5.930% 8/01/1999         135,000       134,325
1994-A Sacramento,
 CA
 5.930% 8/01/1999          60,000        59,700
1994-A Santa Ana,
 CA
 5.930% 8/01/1999         920,000       915,400
U.S. Dept. of Housing
 and Urban
 Development, Series
 1996-A
 6.670% 8/01/2001       2,000,000     2,020,000
                                   ------------
                                      6,000,000
                                   ------------
TOTAL U.S. GOVERNMENT
AGENCY OBLIGATIONS                   71,994,173
                                   ------------
(Cost $70,455,483)

U.S. TREASURY OBLIGATIONS -- 34.6%
U.S. Treasury Bonds -- 15.4%
U.S. Treasury Bond
 7.250% 5/15/2016      20,700,000    21,857,958
U.S. Treasury Bond
 8.875% 8/15/2017      26,750,000    33,040,530
                                   ------------
                                     54,898,488
                                   ------------
U.S. Treasury Notes -- 13.6%
U.S. Treasury Note
 5.875% 4/30/1998       7,000,000     7,010,920
U.S. Treasury Note
 6.375% 5/15/1999      23,500,000    23,701,865
U.S. Treasury Note
 8.875% 11/15/1998     17,000,000    17,887,230
                                   ------------
                                     48,600,015
                                   ------------
U.S. Treasury Strips -- 5.6%
U.S. Treasury Strip -- Principal Only
 0.000% 2/15/1999      19,500,000    17,237,220
U.S. Treasury Strip -- Principal Only
 0.000% 2/15/2015       9,250,000     2,708,308
                                   ------------
                                     19,945,528
                                   ------------
TOTAL U.S. TREASURY
OBLIGATIONS                         123,444,031
                                   ------------
(Cost $123,480,345)

TOTAL BONDS & NOTES                 346,242,717
                                   ------------
(Cost $341,522,655)

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                      <C>        <C> 
SHORT-TERM INVESTMENTS -- 1.8%
Commercial Paper
Bausch & Lomb Inc.
 6.850% 1/08/1997       1,140,000     1,138,482
Indiana Michigan
 Power Company
 6.700% 1/03/1997       3,000,000     2,998,883
Lockheed Martin
 Corporation
 7.000% 1/02/1997       2,355,000     2,354,542
                                   ------------
TOTAL SHORT-TERM
INVESTMENTS                           6,491,907
                                   ------------
(At Amortized Cost)

TOTAL INVESTMENTS -- 98.8%          352,734,624
(Cost $348,014,562)[

Other Assets/
(Liabilities) - 1.2%                  4,330,553
                                   ------------
NET ASSETS-- 100.0%                $357,065,177
                                   ------------

</TABLE> 
Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes 
(Note 7)

144A: Securities exempt from registration under rule 144A of the Securities Act
 of 1933. The Securities may be resold in transactions exempt from registration,
 normally to qualified institutional buyers.

(D) All or a portion of this security is segregated to cover forward purchase
commitments (Note 2).

   The accompanying notes are an integral part of the financial statements.   23
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                                                               December 31, 1996
                                                               ----------------
Statement of Assets and Liabilities
<S>                                                          <C> 
Assets:
     Investments, at value (cost $341,522,655) (Note 2).....   $    346,242,717
     Short-term investments, at amortized cost (Note 2).....          6,491,907
                                                               ----------------
       Total Investments....................................        352,734,624
     Cash...................................................              4,936
     Receivables from:
       Fund shares sold.....................................            380,193
       Interest.............................................          4,574,725
       Investment manager (Note 3)..........................             17,663
                                                               ----------------
         Total assets.......................................        357,712,141
                                                               ----------------
Liabilities:
     Payables for:
       Investments purchased................................            142,615
       Settlement of investments purchased on a
         forward commitment basis (Note 2)..................             11,739
       Fund shares redeemed.................................            306,112
       Directors' fees and expenses (Note 3)................              5,176
       Affiliates (Note 3):
         Investment management fees.........................            139,334
         Administration fees................................             26,194
         Service and distribution fees......................                243
     Accrued expenses and other liabilities.................             15,551
                                                               ----------------
         Total liabilities..................................            646,964
                                                               ----------------
     Net assets.............................................   $    357,065,177
                                                               ================
Net assets consist of:
     Paid-in capital........................................        352,396,989
     Undistributed net investment income....................          1,845,746
     Accumulated net realized loss on investments...........         (1,885,881)
     Net unrealized appreciation on investments
         and forward commitments............................          4,708,323
                                                               ----------------
                                                               $    357,065,177
                                                               ================
Net assets:
     Class 1................................................   $        120,838
                                                               ================
     Class 2................................................   $        122,293
                                                               ================
     Class 3................................................   $        123,107
                                                               ================
     Class 4................................................   $    356,698,939
                                                               ================
Shares outstanding:
     Class 1................................................             11,512
                                                               ================
     Class 2................................................             11,631
                                                               ================
     Class 3................................................             11,699
                                                               ================
     Class 4................................................         34,141,922
                                                               ================
Net asset value, offering price and
redemption price per share:
     Class 1................................................   $          10.50
                                                               ================
     Class 2................................................   $          10.51
                                                               ================
     Class 3................................................   $          10.52
                                                               ================
     Class 4................................................   $          10.45
                                                               ================
</TABLE> 

24  The accompanying notes are an integral part of the finanial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>    
<CAPTION> 
                                                              Year ended
                                                           December 31, 1996
                                                           -----------------
Statement of Operations                              
<S>                                                       <C> 
Investment income:
     Interest...........................................   $     20,691,459
                                                           -----------------
Expenses (Note 1):
     Investment management fees (Note 3)................          1,375,667
     Custody fees.......................................             38,056
     Audit and legal fees...............................             10,158
     Directors' fees (Note 3)...........................             15,247
     Fees waived by the investment manager (Note 3).....           (128,270)
                                                           -----------------
                                                                  1,310,858
     Administration fees (Note 3):
       Class 1..........................................                737
       Class 2..........................................                614
       Class 3..........................................                382
       Class 4..........................................            257,095
     Distribution and service fees (Note 3):
       Class 1..........................................                842
       Class 2..........................................                178
                                                           -----------------
         Net expenses...................................          1,570,706
                                                           -----------------
         Net investment income..........................         19,120,753
                                                           -----------------

Realized and unrealized gain (loss):
     Net realized loss on investment transactions
     and forward commitments............................         (1,886,093)
     Net change in unrealized appreciation
     (depreciation) on
       investments and forward commitments..............         (6,456,882)
                                                           -----------------
         Net realized and unrealized loss...............         (8,342,975)
                                                           -----------------
     Net increase in net assets resulting from
     operations.........................................   $     10,777,778
                                                           =================
</TABLE>     

   The accompanying notes are an integral part of the financial statements.   25
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                                                                                   Year ended             Year ended
                                                                                December 31, 1996      December 31, 1995
                                                                                -----------------      -----------------
Statements of Changes in Net Assets
<S>                                                                        <C>                     <C> 
Increase (Decrease) in Net Assets:
Operations:
     Net investment income................................................       $    19,120,753        $    14,053,804
     Net realized gain (loss) on investment transactions
      and forward commitments.............................................            (1,886,093)             9,143,745
     Net change in unrealized appreciation (depreciation) on
      investments and forward commitments.................................            (6,456,882)            14,064,619
                                                                                -----------------      -----------------
      Net increase in net assets resulting from operations................            10,777,778             37,262,168
                                                                                -----------------      -----------------
Distributions to shareholders (Note 2):
     From net investment income:
     Class 1..............................................................                (4,416)                (7,975)
     Class 2..............................................................                (5,227)                (5,956)
     Class 3..............................................................                (5,674)                (6,329)
     Class 4..............................................................           (17,374,307)           (13,924,661)
                                                                                -----------------      -----------------
      Total distributions from net investment income......................           (17,389,624)           (13,944,921)
                                                                                -----------------      -----------------
     From net realized gains:
     Class 1..............................................................                  (740)                (4,784)
     Class 2..............................................................                  (714)                (3,332)
     Class 3..............................................................                  (715)                (3,329)
     Class 4..............................................................            (1,942,817)            (7,028,844)
                                                                                -----------------      -----------------
      Total distributions from net realized gains.........................            (1,944,986)            (7,040,289)
                                                                                -----------------      -----------------
Net fund share transactions (Note 5):
     Class 1..............................................................               (45,858)                61,915
     Class 2..............................................................                 5,941                  9,288
     Class 3..............................................................                 6,389                  9,658
     Class 4..............................................................           111,704,711             43,139,641
                                                                                -----------------      -----------------
      Increase in net assets from net fund share transactions.............           111,671,183             43,220,502
                                                                                -----------------      -----------------
     Total increase in net assets.........................................           103,114,351             59,497,460
Net assets:
     Beginning of period..................................................           253,950,826            194,453,366
                                                                                -----------------      -----------------
     End of period (including undistributed net investment income
      of $1,845,746 and $114,829, respectively)...........................       $   357,065,177        $   253,950,826
                                                                                =================      =================
</TABLE> 

26 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE>    
<CAPTION> 
                                                                                                      Class 1     
                                                                                                   ------------                    
                                                                                Year ended           Year ended        Period Ended
                                                                                 12/31/96             12/31/95          12/31/94**
                                                                               -----------         ------------        ------------
<S>                                                                        <C>                   <C>                 <C> 
Net asset value, beginning of period                                           $    10.79          $      9.90         $     10.00
                                                                               -----------         ------------        ------------
Income (loss) from investment operations:                                                                         
  Net investment income                                                              0.53***              0.50                0.10
  Net realized and unrealized gain (loss) on investments                            (0.36)                1.26               (0.10)
                                                                               -----------         ------------        ------------
   Total income (loss) from investment operations                                    0.17                 1.76                  --
                                                                               -----------         ------------        ------------
Less distributions to shareholders:                                                                               
  From net investment income                                                        (0.40)               (0.54)              (0.10)
  From net realized gains                                                           (0.06)               (0.33)                 --
                                                                               -----------         ------------        ------------
   Total distributions                                                              (0.46)               (0.87)              (0.10)
                                                                               -----------         ------------        ------------
Net asset value, end of period                                                 $    10.50          $     10.79         $      9.90
                                                                               ===========         ============        ============
Total Return                                                                         1.60%               17.81%               0.00%
Ratios / Supplemental Data:                                                                                       
  Net assets, end of period (000's)                                                  $121                 $171                $101
  Net expenses to average daily net assets#                                          1.65%                1.65%               1.65%*
  Net investment income to average daily net assets                                  5.10%                5.39%               5.91%*
  Portfolio turnover rate                                                              54%                 104%                  7%
   #Computed after giving effect to the reduction in                                                              
    management fee by MassMutual. Without this reduction of                                                        
    fees by the investment manager, the ratio of expenses                                                          
    to average daily net assets would have been:                                     1.69%                1.69%               1.71%*

                                                                                                                  
<CAPTION>                                                                                                                   
                                                                                                                  
                                                                                                      Class 2     
                                                                                                   ------------                     

                                                                                Year ended           Year ended        Period Ended
                                                                                 12/31/96             12/31/95          12/31/94**
                                                                               -----------         ------------         ------------
<S>                                                                            <C>                 <C>                 <C> 
Net asset value, beginning of period                                           $    10.82          $      9.90         $     10.00
                                                                               -----------         ------------         ------------
Income (loss) from investment operations:                                                                         
  Net investment income                                                              0.60***              0.64                0.11
  Net realized and unrealized gain (loss) on investments                            (0.38)                1.19               (0.10)
                                                                               -----------         ------------         ------------
   Total income (loss) from investment operations                                    0.22                 1.83                0.01
                                                                               -----------         ------------         ------------
Less distributions to shareholders:                                                                               
  From net investment income                                                        (0.47)               (0.58)              (0.11)
  From net realized gains                                                           (0.06)               (0.33)                 --
                                                                               -----------         ------------         ------------
   Total distributions                                                              (0.53)               (0.91)              (0.11)
                                                                               -----------         ------------         ------------
Net asset value, end of period                                                 $    10.51          $     10.82         $      9.90
                                                                               ===========         ============         ============
Total Return                                                                         2.07%               18.51%               0.08%
Ratios / Supplemental Data:                                                                                       
  Net assets, end of period (000's)                                                  $122                 $120                $101
  Net expenses to average daily net assets#                                          1.10%                1.10%               1.10%*
  Net investment income to average daily net assets                                  5.67%                5.97%               6.46%*
  Portfolio turnover rate                                                              54%                 104%                  7%
   #Computed after giving effect to the reduction in                                                              
     management fee by MassMutual. Without this reduction of                                                        
     fees by the investment manager, the ratio of expenses                                                          
     to average daily net assets would have been:                                    1.14%                1.14%               1.16%*

</TABLE>     
*   Annualized
**  For the period from October 3, 1994 (commencement of operations) through
    December 31, 1994.
*** Per share amount calculated on the average shares method, which more
    appropriately presents the per share data for the period since the use of 
    the undistributed income method does not accord with the results of 
    operations.


   The accompanying notes are an integral part of the financial statesments.  27
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                     Class 3
                                                                                                  ------------                 
                                                                               Year ended           Year ended     Period Ended
                                                                                12/31/96             12/31/95       12/31/94**
                                                                              -----------         ------------     ------------
<S>                                                                         <C>                <C>                <C> 
Net asset value, beginning of period                                          $    10.82          $      9.90      $     10.00
                                                                              -----------         ------------     ------------
Income (loss) from investment operations:                                                                        
  Net investment income                                                             0.64***              0.68             0.11
  Net realized and unrealized gain (loss) on investments                           (0.37)                1.19            (0.10)
                                                                              -----------         ------------     ------------
   Total income (loss) from investment operations                                   0.27                 1.87             0.01
                                                                              -----------         ------------     ------------
Less distributions to shareholders:                                                                              
  From net investment income                                                       (0.51)               (0.62)           (0.11)
  From net realized gains                                                          (0.06)               (0.33)              --
                                                                              -----------         ------------     ------------
   Total distributions                                                             (0.57)               (0.95)           (0.11)
                                                                              -----------         ------------     ------------
Net asset value, end of period                                                $    10.52          $     10.82      $      9.90
                                                                              ===========         ============     ============
Total Return                                                                        2.52%               18.87%            0.09%
Ratios / Supplemental Data:                                                                                      
  Net assets, end of period (000's)                                                 $123                 $120             $101
  Net expenses to average daily net assets#                                         0.75%                0.75%            0.75%*
  Net investment income to average daily net assets                                 6.01%                6.32%            6.83%* 
  Portfolio turnover rate                                                             54%                 104%               7%
   #Computed after giving effect to the reduction in                                                             
   management fee by MassMutual. Without this reduction of                                                       
   fees by the investment manager, the ratio of expenses                                                         
   to average daily net assets would have been:                                     0.79%                0.79%            0.81%* 
                                                                                                                 
<CAPTION>                                                                                                        
                                                                                                     Class 4     
                                                                                                  ------------                 
                                                                               Year ended           Year ended     Period Ended
                                                                                12/31/96             12/31/95       12/31/94**
                                                                              -----------         ------------     ------------
Net asset value, beginning of period                                          $    10.75          $      9.84      $     10.00
                                                                              -----------         ------------     ------------
Income (loss) from investment operations:                                                                        
  Net investment income                                                             0.67***              0.72***          0.18
  Net realized and unrealized gain (loss) on investments                           (0.37)                1.17            (0.16)
                                                                              -----------         ------------     ------------
   Total income (loss) from investment operations                                   0.30                 1.89             0.02
                                                                              -----------         ------------     ------------
Less distributions to shareholders:                                                                              
  From net investment income                                                       (0.54)               (0.65)           (0.18)
  From net realized gains                                                          (0.06)               (0.33)              --
                                                                              -----------         ------------     ------------
   Total distributions                                                             (0.60)               (0.98)           (0.18)
                                                                              -----------         ------------     ------------
Net asset value, end of period                                                $    10.45          $     10.75      $      9.84
                                                                              ===========         ============     ============
Total Return/@/                                                                     2.80%               19.15%            0.20%
Ratios / Supplemental Data:                                                                                      
  Net assets, end of period (000's)                                             $356,699             $253,540         $194,150
  Net expenses to average daily net assets#                                       0.5130%              0.5130%          0.5130%* 
  Net investment income to average daily net assets                                 6.26%                6.56%            6.86%* 
  Portfolio turnover rate                                                             54%                 104%               7%
   #Computed after giving effect to the reduction in                                                             
   management fee by MassMutual. Without this reduction of                                                       
   fees by the investment manager, the ratio of expenses                                                         
   to average daily net assets would have been:                                   0.5550%              0.5553%          0.5672%*
</TABLE> 
/*/Annualized
/**/For the period from October 3, 1994 (commencement of operations) through
    December 31, 1994.
/***/Per share amount calculated on the average shares method, which more
     appropriately presents the per share data for the period since the use of
     the undistributed income method does not accord with the results of
     operations.
/@/Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.

28 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996

<TABLE> 
<CAPTION> 

                       Number of
                         Shares     Market Value
                         ------     ------------
<S>                     <C>        <C> 
EQUITIES -- 50.2%
Aerospace & Defense -- 0.9%
Boeing Company             27,000  $  2,872,125
Raytheon Company            1,200        57,750
TRW, Inc.                  48,200     2,385,900
                                   ------------
                                      5,315,775
                                   ------------

Agribusiness -- 0.6%
Pioneer Hi-Bred
 International, Inc.       45,500     3,185,000
                                   ------------

Apparel, Textiles & Shoes -- 0.5%
VF Corporation             44,500     3,003,750
                                   ------------

Automotive & Parts -- 2.4%
Ford Motor Company         97,300     3,101,438
Genuine Parts
 Company                  103,000     4,583,500
Goodyear Tire &
 Rubber Company           113,700     5,841,338
                                   ------------
                                     13,526,276
                                   ------------

Banking, Savings & Loans -- 3.2%
The Bank of New
 York Company,
 Incorporated             170,000     5,737,500
Comerica, Incorporated     41,500     2,173,563
CoreStates Financial
 Corp.                     81,500     4,227,813
Norwest Corporation        57,000     2,479,500
Wachovia Corp.             60,100     3,395,650
                                   ------------
                                     18,014,026
                                   ------------

Beverages -- 1.0%
Brown-Forman
 Corporation (Class B)     66,600     3,046,950
Pepsico, Inc.              84,000     2,457,000
                                   ------------
                                      5,503,950
                                   ------------

Chemicals -- 2.0%
E. I. du Pont de
 Nemours and Company       33,000     3,114,375
The Lubrizol
 Corporation               63,300     1,962,300
Nalco Chemical
 Company                   81,500     2,944,188
Rohm & Haas
 Company                   39,000     3,183,375
                                   ------------
                                     11,204,238
                                   ------------

Communications -- 0.6%
AT & T Corporation         84,000     3,654,000
                                   ------------

Computers & Office Equipment -- 3.7%
Hewlett-Packard
 Company                  122,000     6,130,500
International Business
 Machines Corporation      35,000     5,285,000
Pitney Bowes, Inc.         84,000     4,578,000
Xerox Corporation          90,000     4,736,250
                                   ------------
                                     20,729,750
                                   ------------

Containers -- 0.6%
Temple-Inland, Inc.        63,000     3,409,875
                                   ------------

Cosmetics & Personal Care -- 0.8%
Kimberly-Clark
 Corporation               48,400     4,610,100
                                   ------------

Drugs -- 0.6%
Pharmacia & Upjohn,
 Inc.                      85,000     3,368,125
                                   ------------

Electric Utilities -- 0.6%
NIPSCO Industries,
 Inc.                      40,000     1,585,000
SCANA Corporation          75,000     2,006,250
                                   ------------
                                      3,591,250
                                   ------------

Electrical Equipment & Electronics -- 3.8%
AMP, Incorporated         156,700     6,013,363
General Electric
 Company                   82,000     8,107,750
Honeywell Inc.             44,000     2,893,000
Hubbell, Incorporated
 (Class B)                 96,023     4,152,986
                                   ------------
                                     21,167,099
                                   ------------

Energy -- 4.3%
Amoco Corporation          74,000     5,957,000
Atlantic Richfield
 Company                   20,300     2,689,750
Chevron Corporation        70,500     4,582,500
Kerr-McGee
 Corporation               43,500     3,132,000
Mobil Corporation          35,000     4,278,750
Teco Energy, Inc.          57,000     1,375,125
Unocal Corporation         68,900     2,799,063
                                   ------------
                                     24,814,188
                                   ------------

Financial Services -- 0.8%
American Express
 Company                   76,500     4,322,250

Foods -- 1.4%
ConAgra, Inc.              62,200     3,094,450
CPC International, Inc.    61,000     4,727,500
                                   ------------
                                      7,821,950
                                   ------------

Forest Products & Paper -- 1.3%
Westvaco Corporation      101,500     2,918,125
Weyerhaeuser Company       90,400     4,282,700
                                   ------------
                                      7,200,825
                                   ------------

Hardware & Tools -- 0.6%
The Stanley Works         123,000     3,321,000
                                   ------------

Healthcare -- 4.4%
Becton, Dickinson and
 Company                  102,000     4,424,250
Bristol-Myers Squibb
 Company                   89,000     9,678,750
Pfizer, Incorporated       74,000     6,132,750
Schering-Plough Corp.      69,800     4,519,550
                                   ------------
                                     24,755,300
                                   ------------

Industrial Distribution -- 0.7%
W.W. Grainger, Inc.        48,000     3,852,000
                                   ------------

Industrial Transportation -- 0.7%
Norfolk Southern
 Corporation               48,000     4,200,000
                                   ------------
</TABLE> 

                                                                     (Continued)

   The accompanying notes are an integral part of the financial statements.   31
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                       Number of
                         Shares     Market Value
                         ------     ------------
<S>                     <C>        <C> 
Insurance -- 4.0%
Allstate Corporation       36,544  $  2,114,984
Jefferson-Pilot
 Corporation               39,750     2,250,844
Marsh & McLennan
 Companies, Inc.           55,000     5,720,000
MBIA, Inc.                 51,500     5,214,375
SAFECO Corporation        149,000     5,876,188
Unitrin, Inc.              28,500     1,588,875
                                   ------------
                                     22,765,266
                                   ------------

Machinery & Components -- 0.9%
Dover Corporation          62,000     3,115,500
Parker-Hannifin
 Corporation               48,000     1,860,000
                                   ------------
                                      4,975,500
                                   ------------

Miscellaneous -- 1.4%
Harsco Corporation         34,500     2,363,250
Minnesota Mining &
 Manufacturing
 Company                   68,000     5,635,500
                                   ------------
                                      7,998,750
                                   ------------

Oil & Gas -- 1.0%
Occidental Petroleum
 Corporation              128,500     3,003,688
Union Pacific
 Resources Group Inc.      89,500     2,617,875
                                   ------------
                                      5,621,563
                                   ------------

Photography -- 0.7%
Eastman Kodak
 Company                   49,300     3,956,325
                                   ------------

Publishing & Printing -- 1.1%
The McGraw-Hill
 Companies, Inc.           89,000     4,105,125
R.R. Donnelley & Sons
 Company                   75,500     2,368,813
                                   ------------
                                      6,473,938
                                   ------------

Retail -- 1.0%
The May Department
 Stores Company            70,500     3,295,875
Sears Roebuck and Co.      48,000     2,214,000
                                   ------------
                                      5,509,875
                                   ------------

Retail-Grocery -- 1.0%
Albertson's, Inc.         119,000     4,239,375
American Stores
 Company                   31,900     1,303,913
                                   ------------
                                      5,543,288
                                   ------------

Telecommunications -- 0.5%
GTE Corporation            57,000     2,593,500
                                   ------------

Telephone Utilities -- 1.5%
Ameritech Corporation      44,500     2,697,813
Frontier Corporation      134,500     3,043,063
Southern New England
 Telecommunications
 Corporation               66,000     2,565,750
                                   ------------
                                      8,306,626
                                   ------------

Tobacco -- 1.6%
American Brands, Inc.      88,500     4,391,813
UST Inc.                  135,000     4,370,625
                                   ------------
                                      8,762,438
                                   ------------

TOTAL EQUITIES                      283,077,796
                                   ------------
(Cost $198,917,229)

                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                     <C>          <C> 
BONDS & NOTES -- 15.9%
ASSET BACKED SECURITIES -- 1.5%
Capita Equipment
 Receivables Trust
 1996-1, Class A4
 6.280% 6/15/2000      $1,000,000  $  1,001,560
Chase Manhattan Auto
 Grantor Trust 1996-B,
 Class A
 6.610% 9/15/2002       2,286,319     2,302,026
Daimler-Benz Auto
 Grantor Trust 1995-A,
 Class A
 5.850% 5/15/2002       1,113,462     1,112,761
Daimler-Benz Vehicle
 Trust 1994-A
 5.950% 12/15/2000        147,249       147,386
Ford Credit 1994-B
 Grantor Trust
 7.300% 10/15/1999        357,498       361,520
Ford Credit Auto
 Owner Trust 1996-B,
 Class A-4
 6.300% 1/15/2001       1,000,000     1,003,990
Nissan Auto
 Receivables 1994-A
 Grantor Trust, Class A
 6.450% 9/15/1999         438,841       439,939
Railcar Trust No.
 1992-1
 7.750% 6/01/2004         398,805       416,751
World Omni 1996-A
 Automobile Lease
 Securitization Trust,
 Class A1
 6.300% 6/25/2002       1,500,000     1,505,145
                                   ------------

TOTAL ASSET BACKED
SECURITIES                            8,291,078
                                   ------------
(Cost $8,269,339)

CORPORATE DEBT -- 5.6%
AirTouch
 Communications, Inc.
 7.500% 7/15/2006       1,000,000     1,026,480
America West Airlines
 1996-1, Class A
 6.850% 7/02/2009       1,000,000       980,000
American Airlines, 
Inc. (D) 
 9.780% 11/26/2011      1,000,000     1,138,750
AMR Corporation (D)
 9.000% 8/01/2012         500,000       565,970
Analog Devices, Inc.
 6.625% 3/01/2000         500,000       493,650
Associates Corporation
 of North America
 6.750% 8/01/2001       1,000,000     1,003,670
Bell Atlantic Financial
 Services, Inc. (D)
 6.610% 2/04/2000       1,000,000     1,006,210
BHP Finance (USA)
 Limited
 6.420% 3/01/2026       1,000,000       989,910
Cardinal Distribution,
 Inc.
 8.000% 3/01/1997         500,000       501,565
Champion International
 Corporation
 6.400% 2/15/2026       1,000,000       954,690
The Charles Schwab
 Corporation
 6.250% 1/23/2003       1,000,000       963,750
CITGO Petroleum
 Corporation
 7.875% 5/15/2006         250,000       254,900
Continental Airlines,
 Inc., Series 1996-2B
 8.560% 7/02/2014         499,897       544,263
Continental Airlines,
 Inc., Series 1996-B
 7.820% 10/15/2013        500,000       516,850
Delta Air Lines, Inc.
 8.540% 1/02/2007         437,643       465,066
English China Clays
 Delaware Inc. (D)
 7.375% 10/01/2002        500,000       513,880
ERAC USA Finance
 Company 144A
 6.950% 1/15/2006         500,000       491,875
FBG Finance Ltd.
 144A
 7.875% 6/01/2016       1,000,000     1,016,610
Fletcher Challenge Ltd.
 7.750% 6/20/2006         500,000       518,525
General American
 Transportation
 Corporation
 6.750% 3/01/2006       1,000,000       971,900
</TABLE> 
                                                                     (Continued)

32 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                     <C>          <C> 
The Goldman Sachs
 Group, L.P. 144A
 6.200% 2/15/2001      $1,000,000  $    980,000
GTE Corporation
 9.100% 6/01/2003         500,000       557,745
Leucadia National
 Corporation
 7.750% 8/15/2013       1,000,000       988,570
Lockheed Martin
 Corporation
 7.700% 6/15/2008       1,000,000     1,046,230
McDonnell Douglas
 Corporation
 6.875% 11/01/2006        500,000       490,630
McDonnell Douglas
 Corporation  (D) 
 9.250% 4/01/2002         500,000       558,450
Newmont Mining
 Corporation  (D)
 8.625% 4/01/2002       1,000,000     1,055,690
News America
 Holdings Incorporated
 9.250% 2/01/2013       1,000,000     1,120,290
Norfolk Southern
 Corporation
 7.220% 9/15/2006         850,000       866,031
Norfolk Southern
 Corporation
 7.400% 9/15/2006       1,000,000     1,015,570
North Finance
 (Bermuda) Limited
 144A
 7.000% 9/15/2005       1,000,000       985,000
Pearson Inc. 144A
 7.375% 9/15/2006         500,000       502,150
Polaroid Corporation
 7.250% 1/15/1997       1,000,000     1,000,220
Rite Aid Corporation
 6.700% 12/15/2001        500,000       499,045
Rolls-Royce Capital
 Inc.
 7.125% 7/29/2003       1,000,000     1,001,490
Scholastic Corporation
 7.000% 12/15/2003      1,000,000       998,070
Thomas & Betts
 Corporation
 8.250% 1/15/2004         500,000       519,565
Time Warner Inc.
 7.750% 6/15/2005       1,000,000     1,005,930
US Air, Inc.
 7.500% 10/15/2009        487,019       491,889
W.R. Grace & Co.
 8.000% 8/15/2004       1,000,000     1,058,720
                                   ------------

TOTAL CORPORATE DEBT                 31,659,799
                                   ------------
(Cost $30,638,759)

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                     <C>          <C> 
U.S. GOVERNMENT AGENCY
OBLIGATIONS -- 4.4%
Federal Home Loan Mortgage Corporation (FHLMC) -- 0.9%
Collateralized Mortgage Obligations -- 0.8%
FHLMC Series 1322
 Class G
 7.500% 2/15/2007      $1,000,000  $  1,024,060
FHLMC Series 1625
 Class D
 5.250% 7/15/2004       3,100,000     3,067,047
FHLMC Series 1625
 Class EA
 5.750% 3/15/2007       1,000,000       981,870
                                   ------------
                                      5,072,977
                                   ------------

Pass-Through Securities -- 0.1%
FHLMC
 9.000% 3/01/2017         184,306       196,112
                                   ------------
                                      5,269,089
                                   ------------

Federal National Mortgage Association
(FNMA) -- 1.0%
Collateralized Mortgage Obligations -- 0.9%
FNMA Series 1993-134
 Class GA
 6.500% 2/25/2007       1,000,000       992,810
FNMA Series 1993-191
 Class PD
 5.400% 3/25/2004       1,000,000       991,560
FNMA Series 1993-221
 Class D
 6.000% 12/25/2008      1,000,000       956,250
FNMA Series 1996-54
 Class C
 6.000% 9/25/2008       2,000,000     1,920,000
                                   ------------
                                      4,860,620
                                   ------------

Pass-Through Securities -- 0.1%
FNMA
 8.000% 5/01/2013         555,094       571,180
                                   ------------
                                      5,431,800
                                   ------------

Government National Mortgage Association (GNMA) -- 1.4%
Pass-Through Securities
GNMA
 6.000% 12/20/2025        464,993       475,530
GNMA
 7.000% 7/20/2025       1,837,048     1,876,085
GNMA
 7.500% 10/15/2006 -
          6/15/2017     3,020,543     3,054,435

<CAPTION> 
                        Principal
                         Amount     Market Value
                         ------     ------------
<S>                     <C>          <C> 
GNMA
 8.000% 11/15/2004 -
          7/15/2008    $1,863,588  $  1,925,887
GNMA
 9.000% 12/15/2008 -
          5/15/2009       607,143       646,796
                                   ------------
                                      7,978,733
                                   ------------

U.S. Government Guaranteed Notes -- 1.1%
1991-A Fairfax
 County, VA
 8.740% 8/01/2001         200,000       216,374
1991-A Jefferson
 Park, CA
 8.740% 8/01/2001       1,740,000     1,882,454
1991-A Monroe
 County, NY
 8.740% 8/01/2001         500,000       540,935
1991-A Rochester, NY
 8.740% 8/01/2001          60,000        64,912
U.S. Dept. of Housing
 and Urban
 Development, Series
 1995-A  (D)
 8.240% 8/01/2002       3,000,000     3,255,060
                                   ------------
                                      5,959,735
                                   ------------

TOTAL U.S. GOVERNMENT
AGENCY OBLIGATIONS                   24,639,357
                                   ------------
(Cost $23,963,711)

U.S. TREASURY OBLIGATIONS -- 4.4%
U.S. Treasury Bonds -- 2.7%
U.S. Treasury Bond
 7.250% 5/15/2016       5,250,000     5,543,685
U.S. Treasury Bond
 8.750% 5/15/2017       8,250,000    10,066,320
                                   ------------
                                     15,610,005
                                   ------------

U.S. Treasury Notes -- 1.3%
U.S. Treasury Note
 6.125% 3/31/1998       3,700,000     3,717,908
U.S. Treasury Note
 7.125% 2/29/2000       3,300,000     3,397,449
                                   ------------
                                      7,115,357
                                   ------------

U.S. Treasury Strip -- 0.4%
U.S. Treasury Strip -- Principal Only
 0.000% 2/15/1999       2,250,000     1,988,910

TOTAL U.S. TREASURY
OBLIGATIONS                          24,714,272
                                   ------------
(Cost $24,499,494)

TOTAL BONDS & NOTES                  89,304,506
                                   ------------
(Cost $87,371,303)
</TABLE> 
                                                                     (Continued)

   The accompanying notes are an integral part of the financial statements.   33
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE>    
<CAPTION> 
                                    Principal
                                      Amount     Market Value
                                      ------     ------------
<S>                                 <C>          <C> 
SHORT-TERM INVESTMENTS -- 30.2%
Commercial Paper
Burlington Northern
 Santa Fe Corp.
 5.500% 1/21/1997                   $ 7,090,000   $  7,068,336
Burlington Northern
 Santa Fe Corp.
 5.970% 1/03/1997                     4,290,000      4,288,577
Carter Holt Harvey
 Limited
 5.500% 1/23/1997                     3,750,000      3,737,396
Central and South
 West Corporation
 5.520% 1/14/1997                     3,140,000      3,133,741
Central and South
 West Corporation
 5.620% 2/07/1997                     3,470,000      3,449,957
Central and South
 West Corporation
 5.630% 1/17/1997                     5,550,000      5,536,113
Comdisco, Inc.
 5.520% 1/15/1997                     2,790,000      2,784,011
Comdisco, Inc.
 5.820% 1/29/1997                     5,530,000      5,504,968
ConAgra, Inc.
 5.490% 2/04/1997                     4,135,000      4,113,560
Cox Enterprises, Inc.
 5.470% 2/28/1997                     3,000,000      2,973,562
Cox Enterprises, Inc.
 5.480% 2/05/1997                     2,680,000      2,665,722
Cox Enterprises, Inc.
 5.500% 2/13/1997                     6,170,000      6,129,467
Crown Cork & Seal
 Company Inc.
 5.800% 2/11/1997                     4,000,000      3,973,578
CSX Corporation
 5.800% 2/20/1997                     5,990,000      5,941,747
Dana Credit
 Corporation
 5.460% 1/02/1997                     4,320,000      4,319,345
Dana Credit
 Corporation
 5.530% 1/31/1997                     2,635,000      2,622,857
Dominion Resources,
 Inc.
 5.470% 1/22/1997                     4,300,000      4,286,279
Dominion Resources,
 Inc.
 5.520% 1/27/1997                     5,915,000      5,891,419
Dominion Resources,
 Inc.
 5.520% 1/28/1997                     3,335,000      3,321,193
ORIX Credit Alliance,
 Inc.
 5.490% 2/03/1997                     3,685,000      3,666,455
ORIX Credit Alliance,
 Inc.
 5.520% 1/08/1997                     2,230,000      2,227,606
ORIX Credit Alliance,
 Inc.
 5.620% 1/14/1997                       170,000        169,655
ORIX Credit Alliance,
 Inc.
 5.800% 1/06/1997                     5,335,000      5,330,702
ORIX Credit Alliance,
 Inc.
 5.850% 3/03/1997                     3,750,000      3,714,417
ORIX Credit Alliance,
 Inc.
 6.020% 2/27/1997                     2,285,000      2,263,220
Praxair, Inc.
 5.650% 2/21/1997                     3,435,000      3,407,506
Public Service
 Company of Colorado
 5.470% 1/17/1997                     2,355,000      2,349,275
Public Service
 Company of Colorado
 5.800% 2/25/1997                     4,200,000      4,162,783
Public Service
 Electric and Gas
 Company
 5.470% 1/10/1997                     3,955,000      3,949,592
Public Service
 Electric and Gas
 Company
 5.470% 1/24/1997                     2,360,000      2,351,753
Public Service
 Electric and Gas
 Company
 5.490% 1/13/1997                     3,655,000      3,648,311
Public Service
 Electric and Gas
 Company
 5.570% 2/06/1997                     5,655,000      5,623,502
Rayonier Inc.
 5.540% 1/07/1997                     3,000,000      2,997,230
Rite Aid Corporation
 5.600% 3/04/1997                     4,900,000      4,852,742
Sonat Inc.
 5.650% 1/09/1997                     5,030,000      5,023,685
Texas Utilities
 Electric Co.
 5.590% 2/14/1997                     4,500,000      4,469,255
Texas Utilities
 Electric Co.
 5.600% 2/10/1997                     3,800,000      3,776,356
Textron Financial
 Corporation
 5.500% 1/16/1997                     1,642,000      1,638,237
Textron Financial
 Corporation
 5.500% 2/18/1997                     3,000,000      2,978,000
Textron Financial
 Corporation
 5.560% 2/12/1997                     2,800,000      2,781,837
Union Pacific
 Corporation
 5.650% 1/30/1997                     2,920,000      2,906,710
Union Pacific
 Corporation
 5.800% 2/24/1997                     2,550,000      2,527,815
UOP
 5.600% 1/31/1997                     3,255,000      3,239,810
UOP
 5.620% 2/26/1997                     4,635,000      4,594,478
UOP
 5.750% 2/19/1997                     4,125,000      4,092,716
                                                 =============

TOTAL SHORT-TERM
INVESTMENTS                                        170,485,476
                                                 =============
(Cost $170,483,887)

TOTAL INVESTMENTS -- 96.3%                         542,867,778
(Cost $456,772,419)+

Other Assets/
(Liabilities) - 3.7%                                20,818,070
                                                  ============

NET ASSETS-- 100.0%                               $563,685,848
                                                  ============
</TABLE>     

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)

144A: Securities exempt from registration under Rule 144A of the Securities Act
      of 1933. These securities may be resold in transactions exempt from
      registration, normally to qualified institutional buyers.

 . All or a portion of this security is segregated to cover forward purchase
  commitments. (Note 2).

34  The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- -------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                                 December 31, 1996
                                                                                                -------------------
<S>                                                                                             <C>
Statement of
Assets and     Assets:
Liabilities         Investments, at value (cost $286,288,532) (Note 2).......................   $       372,382,302
                    Short-term investments, at value (cost $170,483,887) (Note 2)............           170,485,476
                                                                                                -------------------
                      Total Investments......................................................           542,867,778
                    Cash.....................................................................                 1,546
                    Receivables from:
                      Investments sold.......................................................               246,752
                      Fund shares sold.......................................................            19,719,860
                      Interest and dividends.................................................             1,898,035
                      Investment manager (Note 3)............................................                22,488
                                                                                                -------------------
                        Total assets.........................................................           564,756,459
                                                                                                -------------------

               Liabilities:
                    Payables for:
                      Investments purchased..................................................                87,044
                      Settlement of investments purchased on a
                        forward commitment basis (Note 2)....................................                 2,411
                      Fund shares redeemed...................................................               702,735
                      Directors' fees and expenses (Note 3)..................................                 5,176
                      Affiliates (Note 3):
                        Investment management fees...........................................               213,324
                        Administration fees..................................................                40,525
                        Service and distribution fees........................................                   266
                    Accrued expenses and other liabilities...................................                19,130
                                                                                                -------------------
                        Total liabilities....................................................             1,070,611
                                                                                                -------------------
                    Net assets...............................................................   $       563,685,848
                                                                                                ===================

               Net assets consist of:
                    Paid-in capital..........................................................   $       475,645,805
                    Undistributed net investment income......................................                26,102
                    Accumulated net realized gain on investments.............................             1,920,993
                    Net unrealized appreciation on investments
                        and forward commitments..............................................            86,092,948
                                                                                                -------------------
                                                                                                $       563,685,848
                                                                                                ===================

               Net assets:
                    Class 1..................................................................   $           133,821
                                                                                                ===================
                    Class 2..................................................................   $           135,418
                                                                                                ===================
                    Class 3..................................................................   $           136,218
                                                                                                ===================
                    Class 4..................................................................   $       563,280,391
                                                                                                ===================

               Shares outstanding:
                    Class 1..................................................................                10,838
                                                                                                ===================
                    Class 2..................................................................                10,948
                                                                                                ===================
                    Class 3..................................................................                10,994
                                                                                                ===================
                    Class 4..................................................................            45,632,444
                                                                                                ===================

               Net asset value, offering price and
               redemption price per share:
                    Class 1..................................................................   $             12.35
                                                                                                ===================
                    Class 2..................................................................   $             12.37
                                                                                                ===================
                    Class 3..................................................................   $             12.39
                                                                                                ===================
                    Class 4..................................................................   $             12.34
                                                                                                ===================
</TABLE>


   The accompanying notes are an integral part of the financial statements.

                                                                              35
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                                     Year ended
                                                                                                  December 31, 1996
                                                                                                -------------------
<S>                                                                                             <C>
Statement of
Operations     Investment income:
                    Interest.................................................................   $        15,133,862
                    Dividends................................................................             6,800,485
                                                                                                -------------------
                      Total investment income................................................            21,934,347
                                                                                                -------------------
               Expenses (Note 1):
                    Investment management fees (Note 3)......................................             2,271,174
                    Custody fees.............................................................                53,996
                    Audit and legal fees.....................................................                16,737
                    Directors' fees (Note 3).................................................                15,247
                    Fees waived by the investment manager (Note 3)...........................              (203,071)
                                                                                                -------------------
                                                                                                          2,154,083
                    Administration fees (Note 3):
                      Class 1................................................................                   794
                      Class 2................................................................                   661
                      Class 3................................................................                   412
                      Class 4................................................................               429,674
                    Distribution and service fees (Note 3):
                      Class 1................................................................                   903
                      Class 2................................................................                   191
                                                                                                -------------------
                        Net expenses.........................................................             2,586,718
                                                                                                -------------------
                        Net investment income................................................            19,347,629
                                                                                                -------------------

               Realized and unrealized gain (loss):
                    Net realized gain on investment transactions and forward commitments.....             8,885,806
                    Net change in unrealized appreciation (depreciation) on
                      investments and forward commitments....................................            33,108,845
                                                                                                -------------------
                        Net realized and unrealized gain.....................................            41,994,651
                                                                                                -------------------
                     Net increase in net assets resulting from operations....................   $        61,342,280
                                                                                                ===================
</TABLE>

   The accompanying notes are an integral part of the financial statements.

36
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                               Year ended             Year ended
                                                                                           December 31, 1996      December 31, 1995
                                                                                          -------------------    ------------------
<S>                                                                                      <C>                     <C>
Statements of
Changes in Net  Increase(Decrease) in Net Assets:
Assets          Operations:
                    Net investment income............................................     $        19,347,629    $       16,724,229
                    Net realized gain on investment transactions
                     and forward commitments.........................................               8,885,806             4,359,989
                    Net change in unrealized appreciation (depreciation) on
                     investments and forward commitments.............................              33,108,845            55,498,858
                                                                                          -------------------    ------------------
                     Net increase in net assets resulting from operations............              61,342,280            76,583,076
                                                                                          -------------------    ------------------
               Distributions to shareholders (Note 2):
                    From net investment income:
                    Class 1..........................................................                  (3,204)               (4,846)
                    Class 2..........................................................                  (4,068)               (3,751)
                    Class 3..........................................................                  (4,538)               (4,120)
                    Class 4..........................................................             (19,441,756)          (16,528,781)
                                                                                          -------------------    ------------------
                     Total distributions from net investment income..................             (19,453,566)          (16,541,498)
                                                                                          -------------------    ------------------
                    From net realized gains:
                    Class 1..........................................................                  (1,969)               (1,239)
                    Class 2..........................................................                  (1,970)                 (859)
                    Class 3..........................................................                  (1,972)                 (857)
                    Class 4..........................................................              (7,883,759)           (3,230,318)
                                                                                          -------------------    ------------------
                     Total distributions from net realized gains.....................              (7,889,670)           (3,233,273)
                                                                                          -------------------    ------------------
               Net fund share transactions (Note 5):
                    Class 1..........................................................                 (49,367)               55,401
                    Class 2..........................................................                   6,038                 4,610
                    Class 3..........................................................                   6,510                 4,977
                    Class 4..........................................................              72,536,092            50,326,522
                                                                                          -------------------    ------------------
                     Increase in net assets from net fund share transactions.........              72,499,273            50,391,510
                                                                                          -------------------    ------------------
                    Total increase in net assets.....................................             106,498,317           107,199,815
               Net assets:
                    Beginning of period..............................................             457,187,531           349,987,716
                                                                                          -------------------    ------------------
                    End of period (including undistributed net investment income
                      of $26,102 and $179,574, respectively).........................     $       563,685,848    $      457,187,531
                                                                                          ===================    ==================
</TABLE>

   The accompanying notes are an integral part of the financial statements.

                                                                              37
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                     Class 1
                                                                                                   ------------
                                                                               Year ended           Year ended         Period Ended
                                                                                12/31/96             12/31/95           12/31/94**
                                                                              -----------         ------------         ------------
<S>                                                                           <C>                 <C>                  <C> 
Net asset value, beginning of period                                          $    11.50          $      9.94          $     10.00
                                                                              -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                             0.34                 0.28                 0.06
  Net realized and unrealized gain (loss) on investments                            1.01                 1.70                (0.06)
                                                                              -----------         ------------         ------------
  Total income (loss) from investment operations                                    1.35                 1.98                   --
                                                                              -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                       (0.31)               (0.33)               (0.06)
  From net realized gains                                                          (0.19)               (0.09)                  --
                                                                              -----------         ------------         ------------
    Total distributions                                                            (0.50)               (0.42)               (0.06)
                                                                              -----------         ------------         ------------
Net asset value, end of period                                                $    12.35          $     11.50          $      9.94
                                                                              ===========         ============         ============
Total Return                                                                      11.67%               19.92%                0.00%
Ratios / Supplemental Data:
Net assets, end of period (000's)                                                   $134                 $173                 $100
  Net expenses to average daily net assets#                                        1.65%                1.65%               1.65%*
  Net investment income to average daily net assets                                2.71%                3.03%               3.39%*
  Portfolio turnover rate                                                            26%                  23%                   2%
  Average broker commission rate (a)                                          $    .0594                  N/A                  N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                   1.69%                1.69%               1.71%*


<CAPTION> 
                                                                                                     Class 2
                                                                                                    __________
                                                                               Year ended           Year ended         Period Ended
                                                                                12/31/96             12/31/95           12/31/94**
                                                                              -----------         ------------         ------------
<S>                                                                           <C>                 <C>                  <C> 
Net asset value, beginning of period                                          $    11.53          $      9.95          $     10.00
                                                                              -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                             0.39                 0.39                 0.06
  Net realized and unrealized gain (loss) on investments                            1.03                 1.65                (0.04)
                                                                              -----------         ------------         ------------
   Total income (loss) from investment operations                                   1.42                 2.04                 0.02
                                                                              -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                       (0.39)               (0.37)               (0.07)
  From net realized gains                                                          (0.19)               (0.09)                   --
                                                                              -----------         ------------         ------------
   Total distributions                                                             (0.58)               (0.46)               (0.07)
                                                                              -----------         ------------         ------------
Net asset value, end of period                                                $    12.37          $     11.53          $      9.95
                                                                              ===========         ============         ============
Total Return                                                                       12.25%               20.50%                0.17%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                                 $135                 $121                 $100
  Net expenses to average daily net assets#                                         1.10%                1.10%                1.10%*

  Net investment income to average daily net assets                                 3.23%                3.60%                3.94%*

  Portfolio turnover rate                                                             26%                  23%                   2%
  Average broker commission rate (a)                                          $    .0594                  N/A                  N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                    1.14%                1.14%                1.16%*

</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

   The accompanying notes are an integral part of the financial statements.

38
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights

(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                  Class 3
                                                                                               ------------         
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                           -----------         ------------         ------------
<S>                                                                        <C>                 <C>                  <C> 
Net asset value, beginning of period                                       $    11.55          $      9.96          $     10.00
                                                                           -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                          0.44                 0.43                 0.07
  Net realized and unrealized gain (loss) on investments                         1.02                 1.66                (0.04)
                                                                           -----------         ------------         ------------
   Total income (loss) from investment operations                                1.46                 2.09                 0.03
                                                                           -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                    (0.43)               (0.41)               (0.07)
  From net realized gains                                                       (0.19)               (0.09)                   --
                                                                           -----------         ------------         ------------
   Total distributions                                                          (0.62)               (0.50)               (0.07)
                                                                           -----------         ------------         ------------
Net asset value, end of period                                             $    12.39          $     11.55          $      9.96
                                                                           ===========         ============         ============
Total Return                                                                    12.61%               20.96%                0.28%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                              $136                 $121                 $100
  Net expenses to average daily net assets#                                      0.75%                0.75%                0.75%*
  Net investment income to average daily net assets                              3.60%                3.94%                4.32%*
  Portfolio turnover rate                                                          26%                  23%                   2%
  Average broker commission rate (a)                                       $    .0594                  N/A                   N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                0.79%                0.79%               0.81%*

<CAPTION> 
                                                                                                  Class 4
                                                                                               ------------         
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                           -----------         ------------         ------------
<S>                                                                        <C>                 <C>                  <C> 
Net asset value, beginning of period                                       $    11.51          $      9.92          $     10.00
                                                                           -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                          0.46                 0.44                 0.11
  Net realized and unrealized gain (loss) on investments                         1.02                 1.68                (0.08)
                                                                           -----------         ------------         ------------
   Total income (loss) from investment operations                                1.48                 2.12                 0.03
                                                                           -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                    (0.46)               (0.44)               (0.11)
  From net realized gains                                                       (0.19)               (0.09)                   --
                                                                           -----------         ------------         ------------
   Total distributions                                                          (0.65)               (0.53)               (0.11)
                                                                           -----------         ------------         ------------
Net asset value, end of period                                             $    12.34          $     11.51          $      9.92
                                                                           ===========         ============         ============
Total Return@                                                                   12.83%               21.31%                0.29%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                          $563,280             $456,773             $349,688
  Net expenses to average daily net assets#                                    0.5120%              0.5120%              0.5120%*
  Net investment income to average daily net assets                              3.83%                4.18%                4.29%*
  Portfolio turnover rate                                                          26%                  23%                   2%
  Average broker commission rate (a)                                       $    .0594                  N/A                  N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                               0.5522%              0.5514%              0.5650%*
</TABLE> 

*Annualized
**  For the period from October 3, 1994 (commencement of operations) through
    December 31, 1994.
@   Employee retirement benefit plans that invest plan assets in the Separate
    Investment Accounts (SIAs) may be subject to certain charges as set forth in
    their respective Plan Documents. Total return figures would be lower for the
    periods presented if they reflected these charges.
(a) Average commission rate paid is computed by dividing the total amount of
    commissions paid during the fiscal year by the total number of shares
    purchased and sold during the fiscal year for which commissions were
    charged. For fiscal years beginning on or after September 1, 1995, a Fund is
    required to disclose its average commission rate per share for security
    trades on which commissions are charged.

   The accompanying notes are an integral part of the financial statements.

                                                                              39
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996
<TABLE> 
<CAPTION> 
                               Number of
                                Shares      Market Value
                                ------      ------------
<S>                            <C>          <C> 
EQUITIES - 95.2%
Aerospace & Defense -- 1.8%
Boeing Company                   230,000    $ 24,466,250
Raytheon Company                  10,000         481,250
TRW, Inc.                        396,600      19,631,700
                                            ------------
                                              44,579,200
                                            ============
Agribusiness -- 1.1%
Pioneer Hi-Bred
 International, Inc.             385,000      26,950,000
                                            ------------
Apparel, Textiles & Shoes -- 1.0%
VF Corporation                   365,000      24,637,500
                                            ============
Automotive & Parts -- 4.7%
Ford Motor Company               945,300      30,131,438
Genuine Parts
 Company                         860,000      38,270,000
Goodyear Tire &
 Rubber Company                  955,000      49,063,125
                                            ------------
                                             117,464,563
                                            ============
Banking, Savings & Loans -- 6.1%
The Bank of New
 York Company,
 Incorporated                  1,440,000      48,600,000
Comerica, Incorporated           338,000      17,702,750
CoreStates Financial
 Corp.                           700,000      36,312,500
Norwest Corporation              485,000      21,097,500
Wachovia Corp.                   494,000      27,911,000
                                            ------------
                                             151,623,750
                                            ------------    
Beverages -- 1.9%
Brown-Forman
 Corporation (Class B)           575,000      26,306,250
Pepsico, Inc.                    700,000      20,475,000
                                            ------------
                                              46,781,250
                                            ============
Chemicals -- 3.7%
E. I. du Pont de
 Nemours and Company             275,000      25,953,125
The Lubrizol
 Corporation                     529,500      16,414,500
Nalco Chemical
 Company                         680,000      24,565,000
Rohm & Haas
 Company                         315,000      25,711,875
                                            ------------
                                              92,644,500
                                            ------------
Communications -- 1.2%
AT & T Corporation               700,000      30,450,000
                                            ============

Computers & Office Equipment -- 6.9%
Hewlett-Packard
 Company                       1,020,000      51,255,000
International Business
 Machines Corporation            291,000      43,941,000
Pitney Bowes, Inc.               700,000      38,150,000
Xerox Corporation                723,000      38,047,875
                                            ------------
                                             171,393,875
                                            ============
Containers -- 1.1%
Temple-Inland, Inc.              525,000      28,415,625
                                            ------------
Cosmetics & Personal Care -- 1.5%
Kimberly-Clark
 Corporation                     403,000      38,385,750
                                            ============
Drugs -- 1.2%
Pharmacia & Upjohn,
 Inc.                            725,000      28,728,125
                                            ============
Electric Utilities -- 1.2%
NIPSCO Industries,
 Inc.                            330,000      13,076,250
SCANA Corporation                625,000      16,718,750
                                            ============
                                              29,795,000
                                            ------------
Electrical Equipment & Electronics -- 7.0%
AMP, Incorporated              1,313,000      50,386,375
General Electric
 Company                         680,000      67,235,000
Honeywell Inc.                   365,000      23,998,750
Hubbell, Incorporated
 (Class B)                       800,071      34,603,088
                                            ============
                                             176,223,213
                                            ============
Energy -- 8.3%
Amoco Corporation                615,000      49,507,500
Atlantic Richfield
 Company                         168,000      22,260,000
Chevron Corporation              600,000      39,000,000
Kerr-McGee
 Corporation                     360,000      25,920,000
Mobil Corporation                290,000      35,452,500
Teco Energy, Inc.                487,700      11,765,763
Unocal Corporation               574,900      23,355,313
                                            ------------
                                             207,261,076
                                            ============
Financial Services -- 1.5%
American Express
 Company                         665,000      37,572,500
                                            ------------
Foods -- 2.5%
ConAgra, Inc.                    518,000      25,770,500
CPC International, Inc.          462,500      35,843,748
                                            ============
                                              61,614,248
                                            ============
Forest Products & Paper -- 2.5%
Westvaco Corporation             855,000      24,581,250
Weyerhaeuser Company             775,000      36,715,625
                                            ------------
                                              61,296,875
                                            ============
Hardware & Tools -- 1.1%
The Stanley Works              1,030,000      27,810,000
                                            ============
</TABLE> 
                                                                     (Continued)


   The accompanying notes are an integral part of the financial statements.

42
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                                Number of
                                 Shares      Market Value
                                 ------      ------------
<S>                              <C>      <C> 
Healthcare -- 8.3%
Becton, Dickinson and
 Company                         850,000  $   36,868,750
Bristol-Myers Squibb
 Company                         750,000      81,562,500
Pfizer, Incorporated             610,000      50,553,750
Schering-Plough Corp.            565,600      36,622,600
                                          -------------- 
                                             205,607,600
                                          --------------
Industrial Distribution -- 1.3%
W.W. Grainger, Inc.              400,000      32,100,000
                                          --------------
Industrial Transportation -- 1.4%
Norfolk Southern
 Corporation                     400,000      35,000,000
                                          --------------
Insurance -- 7.7%
Allstate Corporation             305,921      17,705,178
Jefferson-Pilot
 Corporation                     345,000      19,535,625
Marsh & McLennan
 Companies, Inc.                 454,900      47,309,600
MBIA, Inc.                       435,000      44,043,750
SAFECO Corporation             1,240,000      48,902,500
Unitrin, Inc.                    234,950      13,098,463
                                          --------------
                                             190,595,116
                                          --------------
Machinery & Components -- 1.7%
Dover Corporation                540,000      27,135,000
Parker-Hannifin
 Corporation                     400,000      15,500,000
                                          --------------
                                              42,635,000
                                          --------------
Miscellaneous -- 2.7%
Harsco Corporation               300,000      20,550,000
Minnesota Mining &
 Manufacturing
 Company                         565,000      46,824,375
                                          --------------
                                              67,374,375
                                          --------------
Oil & Gas -- 1.9%
Occidental Petroleum
 Corporation                   1,067,000      24,941,125
Union Pacific
 Resources Group Inc.            729,700      21,343,725
                                          --------------
                                              46,284,850
                                          --------------
Photography -- 1.3%
Eastman Kodak
 Company                         413,600      33,191,400
                                          --------------
Publishing & Printing -- 2.2%
The McGraw-Hill
 Companies, Inc.                 740,000      34,132,500
R.R. Donnelley & Sons
 Company                         630,000      19,766,250
                                          --------------
                                              53,898,750
                                          --------------
Retail -- 1.9%
The May Department
 Stores Company                  600,000      28,050,000
Sears Roebuck and Co.            400,000      18,450,000
                                          --------------
                                              46,500,000
                                          --------------
Retail-Grocery -- 1.9%
Albertson's, Inc.              1,000,001      35,625,010
American Stores
 Company                         262,300      10,721,513
                                          --------------
                                              46,346,523
                                          --------------
Telecommunications -- 0.9%
GTE Corporation                  475,300      21,626,150
                                          --------------
Telephone Utilities -- 2.8%
Ameritech Corporation            372,000      22,552,500
Frontier Corporation           1,112,200      25,163,525
Southern New England
 Telecommunications
 Corporation                     555,000      21,575,625
                                          --------------
                                              69,291,650
                                          --------------
Tobacco -- 2.9%
American Brands, Inc.            735,000      36,474,375
UST Inc.                       1,111,000      35,968,625
                                          --------------
                                              72,443,000
                                          --------------

TOTAL EQUITIES                             2,366,521,464
(Cost $1,654,626,282)                     --------------

<CAPTION> 
                                Principal
                                 Amount      Market Value
                                 ------      ------------
<S>                            <C>        <C> 
SHORT-TERM INVESTMENTS -- 4.6%
Commercial Paper
AIG Funding Inc.
 5.280% 2/28/1997              5,668,000       5,619,784
CoreStates Capital
 Corporation
 5.270% 4/28/1997              2,000,000       1,963,600
E. I. du Pont de
 Nemours and Company
 5.250% 5/09/1997              5,000,000       4,900,444
E. I. du Pont de
 Nemours and Company
 5.250% 5/19/1997              9,000,000       8,806,800
First Union
 Corporation
 5.270% 4/23/1997              3,000,000       2,947,733
First Union
 Corporation
 5.280% 3/28/1997              5,000,000       4,933,111
Ford Motor Credit
 Company
 5.290% 3/10/1997             14,000,000      13,851,912
Heinz (H.J.) Company
 5.330% 1/21/1997              3,000,000       2,991,117
Heinz (H.J.) Company
 5.400% 1/21/1997              8,000,000       7,976,000
J. P. Morgan &
 Company Incorporated
 5.280% 2/03/1997             14,000,000      13,932,240
Shell Oil Company
 6.500% 1/02/1997              6,861,000       6,859,761
Sunoco Credit
 Corporation
 5.320% 2/04/1997              8,000,000       7,959,804
Sunoco Credit
 Corporation
 5.370% 1/21/1997              6,000,000       5,982,100
Transamerica
 Financial Corporation
 5.270% 3/14/1997              2,595,000       2,565,936
The Walt Disney
 Company
 5.320% 1/24/1997             10,000,000       9,966,011
Weyerhaeuser Company
 5.300% 2/10/1997              9,000,000       8,947,000
Weyerhaeuser Company
 5.300% 2/12/1997              4,000,000       3,975,267
                                          --------------

TOTAL SHORT-TERM
INVESTMENTS                                  114,178,620
(Cost $114,215,876)                       --------------

TOTAL INVESTMENTS -- 99.8%                 2,480,700,084
(Cost $1,768,842,158)+                     

Other Assets/
(Liabilities) - 0.2%                           5,508,151
                                          --------------  

NET ASSETS-- 100.0%                       $2,486,208,235
                                          --------------
</TABLE> 


Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)



   The accompanying notes are an integral part of the financial statements.

                                                                              43
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements
- --------------------------------------------------------------------------------
                                                               
Statement of Assets and Liabilities                            
<TABLE> 
<CAPTION> 
                                                               December 31, 1996
                                                               -----------------
<S>                                                            <C> 
Assets:                                                        
  Investments, at value (cost $1,654,626,282) (Note 2).....    $   2,366,521,464
  Short-term investments, at value (cost $114,215,876) (Note 2)      114,178,620
                                                               -----------------
    Total Investments......................................        2,480,700,084
  Cash.....................................................                  190
  Receivables from:                                             
    Investments sold.......................................            2,044,107
    Fund shares sold.......................................            1,696,480
    Interest and dividends.................................            5,329,158
    Investment manager (Note 3)............................              106,983
                                                               -----------------
      Total assets.........................................        2,489,877,002
                                                               -----------------
Liabilities:                                                    
  Payables for:                                                 
    Investments purchased..................................              481,850
    Fund shares redeemed...................................            1,916,768
    Directors' fees and expenses (Note 3)..................                5,176
    Affiliates (Note 3):                                        
      Investment management fees...........................              987,506
      Administration fees..................................              198,758
      Service and distribution fees........................                  303
  Accrued expenses and other liabilities...................               78,406
                                                               -----------------
      Total liabilities....................................            3,668,767
                                                               -----------------
  Net assets...............................................    $   2,486,208,235
                                                               =================
Net assets consist of:                                          
  Paid-in capital..........................................    $   1,759,761,092
  Undistributed net investment income......................              410,862
  Accumulated net realized gain on investments.............           14,178,355
  Net unrealized appreciation on investments...............          711,857,926
                                                               -----------------
                                                               $   2,486,208,235
                                                               =================
Net assets:                                                     
  Class 1..................................................    $         153,607
                                                               =================
  Class 2..................................................    $         155,446
                                                               =================
  Class 3..................................................    $         156,351
                                                               =================
  Class 4..................................................    $   2,485,742,831
                                                               =================
Shares outstanding:                                             
  Class 1..................................................               10,640
                                                               =================
  Class 2..................................................               10,740
                                                               =================
  Class 3..................................................               10,793
                                                               =================
  Class 4..................................................          171,928,663
                                                               =================
Net asset value, offering price and                             
redemption price per share:                                     
  Class 1..................................................    $           14.44
                                                               =================
  Class 2..................................................    $           14.47
                                                               =================
  Class 3..................................................    $           14.49
                                                               =================
  Class 4..................................................    $           14.46
                                                               =================
</TABLE> 

   The accompanying notes are an integral part of the financial statements.

44
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statement of Operations
<TABLE> 
<CAPTION> 
                                                                      Year ended
                                                               December 31, 1996
                                                               -----------------
<S>                                                            <C> 
Investment income:
  Dividends................................................    $     56,941,194
  Interest.................................................          10,459,062
                                                               ----------------
    Total investment income................................          67,400,256
                                                               ----------------
Expenses (Note 1):                             
  Investment management fees (Note 3)......................          10,377,627
  Custody fees.............................................             205,814
  Audit and legal fees.....................................              77,183
  Directors' fees (Note 3).................................              15,195
  Fees waived by the investment manager (Note 3)...........          (1,077,667)
                                                               ----------------
                                                                      9,598,152
  Administration fees (Note 3):                 
    Class 1................................................                 814
    Class 2................................................                 751
    Class 3................................................                 474
    Class 4................................................           2,086,673
  Distribution and service fees (Note 3):       
    Class 1................................................                 911
    Class 2................................................                 212
                                                               ----------------
      Net expenses.........................................          11,687,987
                                                               ----------------
      Net investment income................................          55,712,269
                                                               ----------------
Realized and unrealized gain (loss):            
  Net realized gain on investment transactions.............          74,040,546
  Net change in unrealized appreciation (depreciation)
    on investments.........................................         296,454,766
                                                               ----------------
      Net realized and unrealized gain.....................         370,495,312
                                                               ----------------
  Net increase in net assets resulting from operations.....    $    426,207,581
                                                               ================
</TABLE> 

   The accompanying notes are an integral part of the financial statements.   45

                                                                              
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
Statements of Changes in Net Assets 

<TABLE> 
<CAPTION> 
                                                                                   Year ended             Year ended
                                                                               December 31, 1996       December 31, 1995
                                                                               -----------------       -----------------
<S>                                                                            <C>                     <C> 
Increase (Decrease) in Net Assets:
Operations:
     Net investment income...........................................          $      55,712,269       $     50,082,342
     Net realized gain on investment transactions....................                 74,040,546             21,371,652
     Net change in unrealized appreciation (depreciation)
      on investments.................................................                296,454,766            429,724,511
                                                                               -----------------       ----------------
      Net increase in net assets resulting from operations...........                426,207,581            501,178,505
                                                                               -----------------       ----------------
Distributions to shareholders (Note 2):
     From net investment income:
     Class 1.........................................................                     (1,849)                (1,761)
     Class 2.........................................................                     (2,628)                (2,382)
     Class 3.........................................................                     (3,152)                (2,774)
     Class 4.........................................................                (55,920,646)           (49,597,273)
                                                                               -----------------       ---------------- 
      Total distributions from net investment income.................                (55,928,275)           (49,604,190)
                                                                               -----------------       ---------------- 
     From net realized gains:
     Class 1.........................................................                     (4,035)                  (990)
     Class 2.........................................................                     (4,054)                  (990)
     Class 3.........................................................                     (4,061)                  (988)
     Class 4.........................................................                (64,653,761)           (16,056,271)
                                                                               -----------------       ----------------
      Total distributions from net realized gains....................                (64,665,911)           (16,059,239)
                                                                               -----------------       ----------------
Net fund share transactions (Note 5):
     Class 1.........................................................                      5,884                  2,751
     Class 2.........................................................                      6,682                  3,372
     Class 3.........................................................                      7,213                  3,763
     Class 4.........................................................                 54,936,919            126,252,551
                                                                               -----------------       ----------------
      Increase in net assets from net fund share transactions........                 54,956,698            126,262,437
                                                                               -----------------       ----------------
     Total increase in net assets....................................                360,570,093            561,777,513
                                
Net assets:
     Beginning of period.............................................              2,125,638,142          1,563,860,629
                                                                               -----------------       ----------------
     End of period (including undistributed net investment income
      of $410,862 and $626,868, respectively)........................          $   2,486,208,235       $  2,125,638,142
                                                                               =================       ================
</TABLE> 

46   The accompanying notes are an integral part of the financial statements.


<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                   Class 1
                                                                                                  ----------
                                                                             Year ended           Year ended         Period Ended
                                                                              12/31/96             12/31/95           12/31/94**
                                                                            ----------            ----------          ----------
<S>                                                                         <C>                   <C>                 <C> 
Net asset value, beginning of period                                        $    12.63            $     9.92          $    10.00
                                                                            ----------            ----------          ----------
Income (loss) from investment operations:
  Net investment income                                                           0.17                  0.18                0.04
  Net realized and unrealized gain (loss) on investments                          2.21                  2.81               (0.08)
                                                                            ----------            ----------          ----------
   Total income (loss) from investment operations                                 2.38                  2.99               (0.04)
                                                                            ----------            ----------          ----------
Less distributions to shareholders:
  From net investment income                                                     (0.18)                (0.18)              (0.04)
  From net realized gains                                                        (0.39)                (0.10)                 --
                                                                            ----------            ----------          ---------- 
   Total distributions                                                           (0.57)                (0.28)              (0.04)
                                                                            ----------            ----------          ----------
Net asset value, end of period                                              $    14.44            $    12.63          $     9.92
                                                                            ==========            ==========          ==========
Total Return                                                                     18.83%                30.10%              (0.39)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                               $154                  $129                 $99
  Net expenses to average daily net assets#                                       1.65%                 1.65%               1.65%*
  Net investment income to average daily net assets                               1.28%                 1.58%               2.31%*
  Portfolio turnover rate                                                           13%                   16%                  3%
  Average broker commission rate (a)                                        $    .0585                   N/A                 N/A
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                   1.69%                 1.70%               1.71%*

<CAPTION> 
                                                                                                   Class 2
                                                                                                  ----------
                                                                             Year ended           Year ended         Period Ended
                                                                              12/31/96             12/31/95           12/31/94**
                                                                            ----------            ----------          ----------
<S>                                                                         <C>                   <C>                 <C> 
Net asset value, beginning of period                                        $    12.65            $     9.93          $    10.00
                                                                            ----------            ----------          ----------
Income (loss) from investment operations:
  Net investment income                                                           0.25                  0.24                0.05
  Net realized and unrealized gain (loss) on investments                          2.22                  2.82               (0.07)
                                                                            ----------            ----------          ----------
   Total income (loss) from investment operations                                 2.47                  3.06               (0.02)
                                                                            ----------            ----------          ----------
Less distributions to shareholders:
  From net investment income                                                     (0.26)                (0.24)              (0.05)
  From net realized gains                                                        (0.39)                (0.10)                 --
                                                                            ----------            ----------          ----------
   Total distributions                                                           (0.65)                (0.34)              (0.05)
                                                                            ----------            ----------          ----------
Net asset value, end of period                                              $    14.47            $    12.65          $     9.93
                                                                            ==========            ==========          ==========
Total Return                                                                     19.46%                30.80%              (0.22)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                               $155                  $130                 $99
  Net expenses to average daily net assets#                                       1.10%                 1.10%               1.10%*
  Net investment income to average daily net assets                               1.82%                 2.13%               2.86%*
  Portfolio turnover rate                                                           13%                   16%                  3%
  Average broker commission rate (a)                                        $    .0585                   N/A                 N/A
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                   1.14%                 1.15%               1.16%*
</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

   The accompanying notes are an integral part of the financial statements.   47

                                                                                
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                   Class 3
                                                                                                  ----------
                                                                            Year ended            Year ended         Period Ended
                                                                             12/31/96              12/31/95           12/31/94**
                                                                            ----------            ----------          ----------
<S>                                                                         <C>                   <C>                 <C> 
Net asset value, beginning of period                                        $    12.66            $     9.93          $    10.00
                                                                            ----------            ----------          ----------
Income (loss) from investment operations:
  Net investment income                                                           0.30                  0.28                0.05
  Net realized and unrealized gain (loss) on investments                          2.23                  2.83               (0.07)
                                                                            ----------            ----------          ----------
   Total income (loss) from investment operations                                 2.53                  3.11               (0.02)
                                                                            ----------            ----------          ----------
Less distributions to shareholders:
  From net investment income                                                     (0.31)                (0.28)              (0.05)
  From net realized gains                                                        (0.39)                (0.10)                 --
                                                                            ----------            ----------          ----------
   Total distributions                                                           (0.70)                (0.38)              (0.05)
                                                                            ----------            ----------          ----------
Net asset value, end of period                                              $    14.49            $    12.66          $     9.93
                                                                            ==========            ==========          ==========
Total Return                                                                     19.92%                31.30%              (0.18)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                               $156                  $130                 $99
  Net expenses to average daily net assets#                                       0.75%                 0.75%               0.75%*
  Net investment income to average daily net assets                               2.17%                 2.48%               3.23%*
  Portfolio turnover rate                                                           13%                   16%                  3%
  Average broker commission rate (a)                                        $    .0585                   N/A                 N/A

   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                   0.80%                 0.80%               0.81%*

<CAPTION> 
                                                                                                   Class 4
                                                                                                  ----------
                                                                            Year ended            Year ended         Period Ended
                                                                             12/31/96              12/31/95           12/31/94**
                                                                            ----------            ----------          ----------
<S>                                                                         <C>                   <C>                 <C> 
Net asset value, beginning of period                                        $    12.63            $     9.91          $    10.00
                                                                            ----------            ----------          ----------
Income (loss) from investment operations:
  Net investment income                                                           0.34                  0.31                0.08
  Net realized and unrealized gain (loss) on investments                          2.22                  2.82               (0.09)
                                                                            ----------            ----------          ----------
   Total income (loss) from investment operations                                 2.56                  3.13               (0.01)
                                                                            ----------            ----------          ----------
Less distributions to shareholders:
  From net investment income                                                     (0.34)                (0.31)              (0.08)
  From net realized gains                                                        (0.39)                (0.10)                 --
                                                                            ----------            ----------          ----------
   Total distributions                                                           (0.73)                (0.41)              (0.08)
                                                                            ----------            ----------          ----------
Net asset value, end of period                                              $    14.46            $    12.63          $     9.91
                                                                            ==========            ==========          ==========
Total Return@                                                                    20.24%                31.54%              (0.10)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                         $2,485,743            $2,125,248          $1,563,563
  Net expenses to average daily net assets#                                     0.5067%               0.5067%             0.5067%*
  Net investment income to average daily net assets                               2.42%                 2.72%               3.20%*
  Portfolio turnover rate                                                           13%                   16%                  3%
  Average broker commission rate (a)                                        $    .0585                   N/A                 N/A

   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                 0.5534%               0.5528%             0.5681%*
</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

48   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996
<TABLE> 
<CAPTION> 
                                                 Number of    
                                                  Shares        Market Value
                                                  ------        ------------
<S>                                              <C>            <C> 
EQUITIES - 98.4%
Air Transportation -- 1.4%
Atlantic Southeast
 Airlines, Inc.                                    297,800      $  6,514,375
                                                                ------------ 
  
Apparel, Textiles & Shoes -- 1.2%
Unitog Company                                     206,500         5,627,125
                                                                ------------   
Automotive & Parts -- 5.7%
Amcast Industrial
 Corporation                                       228,100         5,645,475
Excel Industries, Inc.                             355,100         5,903,538
Myers Industries, Inc.                             321,154         5,419,469
Titan Wheel
 International, Inc.                               698,500         8,905,875
                                                                ------------ 
                                                                  25,874,357
                                                                ------------ 
Banking, Savings & Loans -- 10.9%
Astoria Financial
 Corporation                                       293,000        10,804,375
Bank United Corp.                                           
 Class A                                           173,200         4,633,100
CCB Financial                                               
 Corporation                                       139,900         9,548,175
First Colorado                                              
 Bancorp, Inc.                                     284,200         4,831,400
Keystone Financial,                                         
 Inc.                                              221,150         5,528,750
One Valley Bancorp of                                       
 West Virginia, Inc.                               183,750         6,821,719
Security Capital                                            
 Corporation                                       102,800         7,581,500
                                                                ------------ 
                                                                  49,749,019
                                                                ------------ 

Building Materials & Construction -- 0.7%
Apogee Enterprises,
 Inc.                                               76,800         3,052,800
                                                                ------------ 
Chemicals -- 1.1%                                          
OM Group, Inc.                                     188,100         5,078,700
                                                                ------------ 
Communications -- 2.3%                                     
True North                                                 
 Communications, Inc.                              483,500        10,576,563
                                                                ------------ 
Computers & Office Equipment -- 1.0%
Cognex Corporation. (D)                            238,500         4,412,250
                                                                ------------ 
Containers -- 1.7%
Rock-Tenn Company
 (Class A)                                         391,490         7,731,928
                                                                ------------ 
Electrical Equipment & Electronics -- 8.2%
Belden, Inc.                                       293,700        10,866,900
Dallas Semiconductor
 Corporation                                       468,600        10,777,800
Teleflex, Incorporated                             128,100         6,677,213
Wyle Laboratories                                  227,200         8,974,390
                                                                ------------ 
                                                                  37,296,303
                                                                ------------ 
Energy -- 3.2%
NGC Corporation                                    165,595         3,850,084
Production Operators                                        
 Corp.                                             156,100         7,258,650
TNP Enterprises, Inc.                              137,100         3,753,113
                                                                ------------ 
                                                                  14,861,847
                                                                ------------ 
Foods -- 3.2%
Midwest Grain
 Products, Inc. (D)                                167,100         2,840,700
Morrison Health Care,                                      
 Inc.                                              377,200         5,563,700
Riser Foods, Inc.                                          
 Class A                                           197,700         6,276,975
                                                                ------------ 
                                                                  14,681,375
                                                                ------------ 
Forest Products & Paper -- 2.4%
Mosinee Paper
 Corporation                                       125,833         4,467,072
Wausau Paper Mills                                         
 Company                                           357,775         6,618,838
                                                                ------------ 
                                                                  11,085,910
                                                                ------------ 
Gas Distribution -- 1.9%
WICOR, Inc.                                        237,300         8,513,138
                                                                ------------ 
Healthcare -- 1.0%                                         
Beckman Instruments,                                       
 Inc.                                              113,800         4,367,075
                                                                ------------  
Industrial Transportation -- 3.1%
ABC Rail Products
 Corporation . (D)                                 115,000      $  2,285,625
Arnold Industries, Inc.                            511,500         8,120,063
The Greenbrier                                            
 Companies, Inc.                                   385,300         3,997,488
                                                                ------------ 
                                                                  14,403,176
                                                                ------------ 

Insurance -- 11.7%
ALLIED Group,
 Incorporated                                      346,350        11,299,669
Capital RE Corp.                                   334,500        15,596,063
Executive Risk, Inc.                               172,900         6,397,300
Frontier Insurance                                         
 Group, Inc.                                       290,080        11,095,560
Orion Capital                                              
 Corporation                                       147,137         8,993,749
                                                                ------------ 
                                                                  53,382,341
                                                                ------------ 
Leasing Companies -- 2.0%
Rollins Truck Leasing
 Company                                           715,750         9,036,344
                                                                ------------ 
Machinery & Components -- 13.3%
Columbus McKinnon
 Corporation                                       266,500         4,164,063
DT Industries, Inc.                                269,200         9,422,000
The Gorman-Rupp                                           
 Company                                           257,825         3,512,866
Graco, Incorporated                                427,000        10,461,500
Greenfield Industries,                                    
 Inc.                                              327,600        10,032,750
Hardinge, Inc.                                     224,300         5,971,988
Helix Technology                                          
 Corporation                                       247,300         7,171,700
Regal-Beloit                                              
 Corporation                                       297,750         5,843,344
Roper Industries, Inc.                             109,200         4,272,450
                                                                ------------ 
                                                                  60,852,661
                                                                ------------ 
Metals & Mining -- 1.8%
Reliance Steel &
 Aluminum Company                                  229,600         8,036,000
                                                                ------------ 
</TABLE> 
    The accompanying notes are an integral part of the financial statement.

                                                                             

                                                                              51
<PAGE>
 
- -------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Portfolio of Investments (Continued)
- -------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

                                                 Number of 
                                                  Shares        Market Value
                                                 ---------      ------------
<S>                                              <C>            <C>         
Miscellaneous -- 2.1%                                         
Trimas Corporation                                407,100       $  9,719,513
                                                              
Miscellaneous Distributor Wholesale -- 1.2%                   
Hughes Supply, Inc.                               130,200          5,614,875
                                                              
Office Products -- 1.1%                                       
American Business                                             
 Products, Inc.                                   197,700          4,967,213
                                                              
Oil & Gas -- 2.9%                                             
The Houston                                                   
 Exploration Company.                             261,800          4,581,500
Stone Energy                                                  
 Corporation.                                     211,000          6,303,625
Titan Exploration, Inc.                           200,000          2,400,000
                                                                ------------ 
                                                                  13,285,125
                                                                ------------ 
Other Services -- 3.0%                                        
Analysts International                                        
 Corporation                                      340,200          9,610,650
Landauer, Inc.                                    173,900          4,260,550
                                                                ------------ 
                                                                  13,871,200
                                                                ------------ 
Publishing & Printing -- 8.4%                                 
Banta Corporation                                 284,250          6,502,219
Harte Hanks                                                   
 Communications, Inc.                             398,300         11,052,825
Houghton Mifflin                                              
 Company                                          173,200          9,807,450
McClatchy                                                     
 Newspapers, Inc.                                 327,400         11,459,000
                                                                ------------ 
                                                                  38,821,494
                                                                ------------ 
Retail -- 1.9%                                                
Arbor Drugs, Inc.                                 502,250          8,726,594
                                                                ------------ 

TOTAL EQUITIES                                                   450,139,301
                                                                ------------
(Cost $338,729,733)

<CAPTION> 

                                                 Principal
                                                  Amount        Market Value
                                                 ---------      ------------
<S>                                              <C>            <C> 
SHORT-TERM INVESTMENTS -- 1.4%
Commercial Paper
Ford Motor Credit
 Company
 5.330% 1/29/1997                              1,000,000            995,854
Shell Oil Company                                        
 6.500% 1/02/1997                              4,350,000          4,349,215
Sunoco Credit                                            
 Corporation                                             
 5.370% 1/21/1997                              1,000,000            997,017
                                                                -----------
TOTAL SHORT-TERM                                         
INVESTMENTS                                                       6,342,086
                                                                ----------- 
(At Amortized Cost)                                           

TOTAL INVESTMENTS -- 99.8%                                      456,481,387
(Cost $345,071,819)+

Other Assets/
(Liabilities)  - .2%                                                886,996
                                                                -----------

NET ASSETS--100.0%                                            $ 457,368,383
                                                               ------------ 

</TABLE> 

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)


(D) Non-income producing security.


   The accompanying notes are an integral part of the financial statements.

52
<PAGE>
 
- -------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements
- -------------------------------------------------------------------------------

Statement of  
Assets and   
Liabilities   

<TABLE> 
<CAPTION> 

                                                              December 31, 1996
                                                              ----------------- 
<S>                                                           <C> 
Assets:
     Investments, at value (cost $338,729,733) (Note 2).....  $    450,139,301
     Short-term investments, at amortized cost (Note 2).....         6,342,086
                                                              ----------------  
       Total Investments....................................       456,481,387
     Cash...................................................            16,575
     Receivables from:
       Investments sold.....................................           590,252
       Fund shares sold.....................................           391,223
       Interest and dividends...............................           614,637
       Investment manager (Note 3)..........................            20,289
                                                              ----------------  
         Total assets.......................................       458,114,363
                                                              ----------------  

Liabilities:
     Payables for:
       Investments purchased................................           124,059
       Fund shares redeemed.................................           349,247
       Directors' fees and expenses (Note 3)................             5,176
       Affiliates (Note 3):
         Investment management fees.........................           216,574
         Administration fees................................            34,087
         Service and distribution fees......................               274
     Accrued expenses and other liabilities.................            16,563
                                                              ----------------  
         Total liabilities..................................           745,980
                                                              ----------------  
     Net assets.............................................  $    457,368,383
                                                              ================  

Net assets consist of:
     Paid-in capital........................................  $    340,794,078
     Undistributed net investment income....................           192,363
     Accumulated net realized gain on investments...........         4,972,374
     Net unrealized appreciation on investments.............       111,409,568
                                                              ----------------  
                                                              $    457,368,383
                                                              ================  

Net assets:
     Class 1................................................  $        142,813
                                                              ================  
     Class 2................................................  $        144,545
                                                              ================  
     Class 3................................................  $        145,609
                                                              ================  
     Class 4................................................  $    456,935,416
                                                              ================  
Shares outstanding:
     Class 1................................................            10,666
                                                              ================  
     Class 2................................................            10,767
                                                              ================  
     Class 3................................................            10,837
                                                              ================  
     Class 4................................................        34,013,589
                                                              ================  

Net asset value, offering price and
redemption price per share:
     Class 1................................................  $          13.39
                                                              ================  
     Class 2................................................  $          13.42
                                                              ================  
     Class 3................................................  $          13.44
                                                              ================  
     Class 4................................................  $          13.43
                                                              ================  

</TABLE> 
    The accompanying notes are an integral part of the financial statement.

                                                                              53
<PAGE>
 
- -------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>


                                                                  Year ended
                                                              December 31, 1996
                                                              -----------------
<S>                                                          <C>
Statement of Operations

Investment income:
     Dividends..............................................  $      10,401,752
     Interest...............................................          2,168,316
                                                              -----------------
       Total investment income..............................         12,570,068
                                                              -----------------

Expenses (Note 1):
     Investment management fees (Note 3)....................          2,298,488
     Custody fees...........................................             47,464
     Audit and legal fees...................................             14,282
     Directors' fees (Note 3)...............................             15,246
     Fees waived by the investment manager (Note 3).........           (182,305)
                                                              -----------------
                                                                      2,193,175
                                                              -----------------
     Administration fees (Note 3):
       Class 1..............................................                844
       Class 2..............................................                667
       Class 3..............................................                417
       Class 4..............................................            359,887
     Distribution and service fees (Note 3):
       Class 1..............................................                958
       Class 2..............................................                191
                                                              -----------------
         Net expenses.......................................          2,556,139
                                                              -----------------
        Net investment income...............................         10,013,929
                                                              -----------------

Realized and unrealized gain (loss):
     Net realized gain on investment transactions...........         15,188,213
     Net change in unrealized appreciation (depreciation) on
       investments..........................................         63,151,095
                                                              -----------------
        Net realized and unrealized gain....................         78,339,308
                                                              -----------------
     Net increase in net assets resulting from operations...  $      88,353,237
                                                              =================
</TABLE>

   The accompanying notes are an integral part of the financial statements.

54
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statements of                   
Changes in Net 
Assets

<TABLE>    
<CAPTION>
                                                                                Year ended               Year ended
                                                                             December 31, 1996        December 31, 1995
                                                                             -----------------        -----------------
<S>                                                                         <C>                       <C>
Increase (Decrease) in Net Assets:
Operations:
     Net investment income.................................................  $      10,013,929        $      6,234,130
     Net realized gain on investment transactions..........................         15,188,213                 776,790
     Net change in unrealized appreciation (depreciation)
      on investments.......................................................         63,151,095              57,391,484
                                                                             -----------------        ----------------
      Net increase in net assets resulting from operations.................         88,353,237              64,402,404
                                                                             -----------------        ----------------

Distributions to shareholders (Note 2):
     From net investment income:
     Class 1...............................................................             (1,430)                 (1,356)
     Class 2...............................................................             (2,382)                 (1,300)
     Class 3...............................................................             (2,845)                 (1,672)
     Class 4...............................................................         (9,914,239)             (6,159,231)
                                                                             -----------------        ----------------
      Total distributions from net investment income.......................         (9,920,896)             (6,163,559)
                                                                             -----------------        ----------------
     From net realized gains:
     Class 1...............................................................             (3,230)                     --
     Class 2...............................................................             (3,240)                     --
     Class 3...............................................................             (3,251)                     --
     Class 4...............................................................        (10,172,978)                     --
                                                                             -----------------        ----------------
                                                                                   (10,182,699)                     --
                                                                             -----------------        ----------------
      Total distributions from net realized gains
      Net fund share
      transactions (Note 5):
     Class 1...............................................................            (49,286)                  51,075
     Class 2...............................................................              5,622                    1,300
     Class 3...............................................................              6,096                    1,672
     Class 4...............................................................          8,348,780               11,428,353
      Increase in net assets from net fund share transactions..............          8,311,212               11,482,400
                                                                             -----------------        ----------------
     Total increase in net assets..........................................         76,560,854               69,721,245
                                                                             -----------------        ----------------

Net assets:
     Beginning of period...................................................        380,807,529              311,086,284
     End of period (including undistributed net investment income
      of $192,363 and $99,330, respectively)...............................  $     457,368,383        $     380,807,529
                                                                             =================        =================
</TABLE>     

   The accompanying notes are an integral part of the financial statements.

                                                                              55
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights

(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
 
                                                                                                 Class 1
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                           ----------          -----------          ----------- 
<S>                                                                        <C>                 <C>                  <C>       
Net asset value, beginning of period                                       $    11.40          $      9.69          $     10.00
                                                                           ----------          -----------          ----------- 
Income (loss) from investment operations:
  Net investment income                                                          0.21                 0.06                 0.02
  Net realized and unrealized gain (loss) on investments                         2.23                 1.74                (0.31)
                                                                           ----------          -----------          ----------- 
   Total income (loss) from investment operations                                2.44                 1.80                (0.29)
                                                                           ----------          -----------          ----------- 
Less distributions to shareholders:
  From net investment income                                                    (0.14)               (0.09)               (0.02)
  From net realized gains                                                       (0.31)                  --                   --
                                                                           ----------          -----------          ----------- 
   Total distributions                                                          (0.45)               (0.09)               (0.02)
                                                                           ----------          -----------          ----------- 
Net asset value, end of period                                             $    13.39          $     11.40          $      9.69
                                                                           ==========          ===========          =========== 
Total Return                                                                    21.43%               18.58%               (2.89)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                              $143                 $172                  $99
  Net expenses to average daily net assets#                                      1.75%                1.75%                1.75%*
  Net investment income to average daily net assets                              1.56%                0.63%                1.14%*
  Portfolio turnover rate                                                          28%                  28%                   4%
  Average broker commission rate (a)                                       $    .0585                  N/A                  N/A
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                  1.79%                1.79%               1.81%*

                                                                                                  Class 2
                                                                                               -----------          
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                           ----------          -----------          ----------- 
Net asset value, beginning of period                                       $    11.44          $      9.70          $     10.00
                                                                           ----------          -----------          ----------- 
Income (loss) from investment operations:
  Net investment income                                                          0.22                 0.13                 0.03
  Net realized and unrealized gain (loss) on investments                         2.30                 1.74                (0.30)
                                                                           ----------          -----------          ----------- 
   Total income (loss) from investment operations                                2.52                 1.87                (0.27)
Less distributions to shareholders:
  From net investment income                                                    (0.23)               (0.13)               (0.03)
  From net realized gains                                                       (0.31)                  --                   --
                                                                           ----------          -----------          ----------- 
   Total distributions                                                          (0.54)               (0.13)               (0.03)
                                                                           ----------          -----------          ----------- 
Net asset value, end of period                                             $    13.42          $     11.44          $      9.70
                                                                           ==========          ===========          =========== 
Total Return                                                                    22.07%               19.25%               (2.72)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                              $145                 $118                  $99
  Net expenses to average daily net assets#                                      1.20%                1.20%                1.20%*
  Net investment income to average daily net assets                              1.81%                1.19%                1.69%*
  Portfolio turnover rate                                                          28%                  28%                   4%
  Average broker commission rate (a)                                       $    .0585                  N/A                  N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                 1.24%               1.24%                1.26%*

</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

   The accompanying notes are an integral part of the financial statements.

56
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE> 
<CAPTION> 
                                                                                                  Class 3
                                                                                                 --------- 
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                           -----------         ------------         ------------
<S>                                                                      <C>                 <C>                  <C> 
Net asset value, beginning of period                                       $    11.44          $      9.70          $     10.00
                                                                           -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                          0.27                 0.16                 0.03
  Net realized and unrealized gain (loss) on investments                         2.31                 1.74                (0.30)
                                                                           -----------         ------------         ------------
   Total income (loss) from investment operations                                2.58                 1.90                (0.27)
                                                                           -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                    (0.27)               (0.16)               (0.03)
  From net realized gains                                                       (0.31)                  --                   --
                                                                           -----------         ------------         ------------
   Total distributions                                                          (0.58)               (0.16)               (0.03)
                                                                           -----------         ------------         ------------
Net asset value, end of period                                             $    13.44          $     11.44          $      9.70
                                                                           ===========         ============         ============
Total Return                                                                    22.64%               19.62%               (2.68)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                              $146                 $119                  $99
  Net expenses to average daily net assets#                                      0.85%                0.85%                0.85%*
  Net investment income to average daily net assets                              2.16%                1.54%                2.09%*
  Portfolio turnover rate                                                          28%                  28%                   4%
  Average broker commission rate (a)                                       $    .0585                  N/A                  N/A
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                  0.89%                0.89%                0.91%*

<CAPTION> 

                                                                                                  Class 4
                                                                                                 ---------
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                           -----------         ------------         ------------
Net asset value, beginning of period                                       $    11.44          $      9.69          $     10.00
                                                                           -----------         ------------         ------------
Income (loss) from investment operations:
  Net investment income                                                          0.31                 0.19                 0.04
  Net realized and unrealized gain (loss) on investments                         2.29                 1.75                (0.31)
                                                                           -----------         ------------         ------------
   Total income (loss) from investment operations                                2.60                 1.94                (0.27)
                                                                           -----------         ------------         ------------
Less distributions to shareholders:
  From net investment income                                                    (0.30)               (0.19)               (0.04)
  From net realized gains                                                       (0.31)                  --                   --
                                                                           -----------         ------------         ------------
   Total distributions                                                          (0.61)               (0.19)               (0.04)
                                                                           -----------         ------------         ------------
Net asset value, end of period                                             $    13.43          $     11.44          $      9.69
                                                                           ===========         ============         ============
Total Return@                                                                   22.82%               20.01%               (2.66)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                          $456,935             $380,398             $310,789
  Net expenses to average daily net assets#                                    0.6110%              0.6110%              0.6110%*
  Net investment income to average daily net assets                              2.40%                1.78%                1.78%*
  Portfolio turnover rate                                                          28%                  28%                   4%
  Average broker commission rate (a)                                       $    .0585                  N/A                  N/A
   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                0.6546%              0.6553%              0.6681%*
</TABLE> 
*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.
(a)Average commission rate paid is computed by dividing the total amount of
  commissions paid during the fiscal year by the total number of shares
  purchased and sold during the fiscal year for which commissions were charged.
  For fiscal years beginning on or after September 1, 1995, a Fund
  is required to disclose its average commission rate per share for security
  trades on which commissions are charged.

   The accompanying notes are an integral part of the financial statements.   57
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments
December 31, 1996

<TABLE> 
<CAPTION> 
                        Number of
                         Shares     Market Value
                         ------     ------------
<S>                     <C>        <C> 
EQUITIES - 99.9%
Automobiles -- 2.8%
Ciadea SA (D)             280,885  $  1,334,428
Mahindra & Mahindra
 Ltd., GDR                140,683     1,653,025
Orbital Engine
 Corporation Ltd. (D)   2,000,000     1,509,000
Porsche AG,
 Preference                 6,000     5,353,287
                                   -------------
                                      9,849,740
                                   -------------

Banking -- 8.3%
Banco Bradesco SA,
 Preference           230,260,951     1,657,879
Banco de Galicia y
 Buenos Aires SA de
 CV, Sponsored ADR        127,000     3,079,750
Banco Frances del Rio
 de la Plata SA, ADR       57,500     1,581,250
Bank of Scotland        1,250,000     6,588,500
Bil GT Gruppe AG            2,500     1,277,256
Development Bank of
 Singapore Limited        200,000     2,702,260
HSBC Holdings PLC         261,214     5,588,987
Skandinaviska Enskilda
 Banken Group             150,000     1,537,770
Standard Chartered
 Bank PLC                 350,000     4,294,500
Turkiye Garanti
 Bankasi, ADR             252,000     1,131,808
                                   -------------
                                     29,439,960
                                   -------------

Commercial Services -- 0.3%
Adecco SA                   4,000     1,000,952
                                   -------------

Computer Hardware -- 0.8%
Canon, Inc.               100,000     2,205,560
PT Multipolar
 Corporation              933,000       533,116
                                   -------------
                                      2,738,676
                                   -------------

Computer Services -- 1.1%
Sligos SA                  30,000     3,924,027
                                   -------------

Computer Software -- 7.4%
Ines Corp.                 42,000       611,524
Misys PLC                 450,872     8,572,204
Nintendo Co. Ltd.         185,000    13,213,144
SAP AG, Preference         30,000     4,123,002
                                   -------------
                                     26,519,874
                                   -------------

Conglomerates -- 2.1%
Chargeurs
 International SA (D)     120,000   $ 5,932,200
First Philippine
 Holdings Corp., B
 Shares                   700,000     1,596,910
                                   -------------
                                      7,529,110
                                   -------------

Diversified Financial -- 5.8%
ABN Amro Holding
 NV                       101,630     6,604,009
ING Groep NV              137,500     4,944,390
IRSA Inversiones y
 Representaciones, SA   1,014,404     3,256,744
Nomura Securities
 Company Ltd.             250,000     3,747,725
Societe Generale de
 Paris                     20,000     2,158,216
                                   -------------
                                     20,711,084
                                   -------------

Drugs -- 9.3%
Altana AG                   6,000     4,668,067
Ares-Serono Group B        10,500     9,986,057
Biocompatibles
 International PLC (D)    411,665     5,762,651
Glaxo Wellcome PLC,
 Sponsored ADR            250,000     4,064,325
Sanofi SA                  35,000     3,473,918
Takeda Chemical
 Industries Ltd.          250,000     5,233,900
                                   -------------
                                     33,188,918
                                   -------------

Electric Utilities -- 0.4%
Capex SA, GDR              76,000     1,262,360
                                   -------------

Electrical Equipment & Electronics -- 6.5%
Austria Mikro
 Systeme International
 AG                        54,800     4,226,450
Keyence Corporation        20,000     2,464,030
LEM Holdings SA            11,192     2,258,868
Matsushita Electric
 Industrial Company
 Ltd.                     175,000     2,849,560
Rohm Company               40,000     2,619,108
SGS-Thomson
 Microelectronics NV (D)   58,800     4,116,000
Yamatake-Honeywell
 Co., Ltd.                 70,000     1,127,763
Yokogawa Electric
 Corp.                    400,000     3,446,160
                                   -------------
                                     23,107,939
                                   -------------

Energy Services & Producers -- 1.0%
Compagnie Generale de
 Geophysique SA (D)        50,000  $  3,462,375
                                   -------------

Engineering -- 1.7%
Fugro NV                  200,000     3,549,660
Internatio-Muller NV      100,000     2,509,050
                                   -------------
                                      6,058,710
                                   -------------

Financial Services -- 3.8%
Compagnie Bancaire
 SA                        35,000     4,133,693
CS Holding AG              40,000     4,096,156
Merita Ltd.
 A Shares (D)           1,399,600     4,342,399
Van der Hoop
 Effektenbank NV          145,000     1,106,524
                                   -------------
                                     13,678,772
                                   -------------

Food & Beverage -- 2.5%
Hellenic Bottling Co.,
 SA                        70,000     2,242,912
Remy Cointreau            120,000     3,393,120
Sermsuk Public
 Company Limited           50,000       725,425
South African
 Breweries Limited        100,000     2,533,400
                                   -------------
                                      8,894,857
                                   -------------

Healthcare -- 1.4%
Novartis AG                 4,264     4,868,254
                                   -------------

Hotel/Gaming -- 0.8%
Lusomundo, SGPS,
 SA (D)                   257,500     2,962,280
                                   -------------

Household Products -- 0.2%
Srithai Superware Co.
 Ltd.                     175,000       846,318
                                   -------------

Industrial Services -- 3.2%
Boskalis Westminster      347,290     7,027,135
PT Citra Marga
 Nusaphala Persada      2,120,000     1,660,106
VBH - Vereinigter
 Baubeschlag Handel
 AG                       125,000     2,778,025
                                   -------------
                                     11,465,266
                                   -------------
</TABLE> 


                                                                     (Continued)

60 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

                        Number of
                         Shares     Market Value
                         ------     ------------
<S>                    <C>        <C> 
Insurance -- 7.1%
AXA SA                     75,000  $  4,760,768
Marschollek,
 Lautenschlaeger und
 Partner AG                44,000     6,109,884
National Mutual Asia
 Ltd.                   1,816,000     1,725,563
Ockham Holdings PLC     1,000,000     1,283,400
Reinsurance Australia
 Corp. Ltd.             2,910,000    11,325,138
                                   -------------
                                     25,204,753
                                   -------------

Manufacturing -- 3.8%
Bucher Holding AG, B
 Shares                     1,750     1,199,057
Powerscreen
 International PLC        494,100     4,777,354
Rolls-Royce PLC           750,000     3,298,500
SMH AG (Registered)        30,000     4,267,449
                                   -------------
                                     13,542,360
                                   -------------

Medical Products -- 0.4%
Elekta Instrument AB
 Free, Series B            40,000     1,420,612

Metals & Mining -- 2.1%
Boehler-Uddeholm AG        12,000       857,970
Boehler-Uddeholm AG
 144A .                    24,000     1,715,946
Compania de Minas
 Buenaventura SA,
 Sponsored ADR            200,000     3,375,000
Hoganas AB Cl. B           40,000     1,400,108
                                   -------------
                                      7,349,024
                                   -------------

Non-Durable Household Goods -- 1.8%
Wella AG                    2,000     1,057,680
Wella AG Preference        10,000     5,320,843
                                   -------------
                                      6,378,523
                                   -------------

Oil & Gas -- 5.2%
Belle Corporation  .    5,000,000     1,387,500
Coflexip SA,
 Sponsored ADR             90,000     2,362,500
Expro International
 Group PLC                775,000     6,266,495
Hong Kong and China
 Gas Company Ltd.         720,000     1,391,544
PTT Exploration and
 Production                50,000       721,525
Smedvig ASA A
 Shares                   165,000     3,617,625
Smedvig ASA B
 Shares .                 160,000     3,282,496
                                   -------------
                                     19,029,685
                                   -------------

Publishing & Printing-- 0.9%
News Corp. Ltd., ADR      150,000     3,131,250
                                   -------------

Real Estate -- 1.3%
Brazil Realty SA,
 GDR 144A                  59,000     1,121,000
MRC Allied Industries,
 Inc. .                 4,000,000       532,000
Sun Hung Kai
 Properties Ltd.          250,000     3,062,375
                                   -------------
                                      4,715,375
                                   -------------

Retail -- 2.4%
Autobacs Seven Co.
 Limited                   50,000     3,528,040
PT Matahari Putra
 Prima                    700,000       818,518
Vendex International
 NV                       100,000     4,272,320
                                   -------------
                                      8,618,878
                                   -------------

Shipping -- 0.2%
Lisnave-Estaleiros
 Navais de Lisbona SA  .  306,300       806,917
                                   -------------

Specialty Retail -- 3.7%
Adidas AG                  42,200     3,641,919
FamilyMart Co.             60,000     2,393,382
Giordano International
 Ltd.                   1,500,000     1,279,800
Jusco Co.                 100,000     3,385,880
Moebel Walther AG,
 Preference                40,000     2,621,488
                                   -------------
                                     13,322,469
                                   -------------

Telecommunications -- 4.0%
CPT Telefonica del
 Peru SA, Cl. B         1,600,000     2,994,080
Korea Mobile
 Telecommunications
 Corporation                4,300     4,368,962
Millicom International
 Cellular SA .             37,500     1,204,688
Portugal Telecom SA        86,000     2,448,437
Telecom Italia Mobile
 SpA                    1,299,900     3,278,478
                                   -------------
                                     14,294,645
                                   -------------

Telephone Utilities -- 1.4%
Telecomunicacoes
 Brasileiras S/A-
 Telebras                  18,500     1,415,250
Telefonica de Espana
 ADS                      150,000     3,476,835
                                   -------------
                                      4,892,085
                                   -------------

Television -- 0.7%
Groupe AB SA .            165,000     2,371,875
                                   -------------

Textiles -- 1.9%
Bulgari SpA               225,000     4,557,690
Gucci Group NV             35,000     2,235,625
                                   -------------
                                      6,793,315
                                   -------------

Tobacco -- 0.4%
Compagnie Financiere
 Richemont AG               1,000     1,400,141
                                   -------------

Transportation -- 3.2%
Argonaut AB-B Shares .  1,100,000     2,207,040
East Japan Railway Co.        750     3,366,503
Frontline AB .            650,000     2,246,595
MIF Ltd.                  250,000     3,719,425
                                   -------------
                                     11,539,563
                                   -------------

TOTAL EQUITIES                      356,320,942
                                   -------------
(Cost $309,944,622)

WARRANTS -- 0.3%

Drugs -- 0.3%
Biocompatibles
 International PLC  .      71,593       912,676
                                   -------------

Oil & Gas -- 0.0%
Hong Kong and China
 Gas Company Ltd.  .       72,000         3,723
                                   -------------
TOTAL WARRANTS                          916,399
                                   -------------
(Cost $0)

TOTAL INVESTMENTS -- 100.2%          357,237,341
                                   -------------
(Cost $309,944,622)+

Other Assets/
(Liabilities) - (0.2%)                 (585,529)
                                   -------------

NET ASSETS-- 100.0%                $356,651,812
                                   -------------
</TABLE> 
Notes to Portfolio of Investments
 . Non-income producing security
+ Aggregate cost for Federal tax purposes (Note 7)
ADR: American Depository Receipt
GDR: Global Depository Receipt
ADS: American Depository Shares

144A: Securities exempt from registration under rule 144A of the Securities Act
 of 1933. The Securities may be resold in transactions exempt from registration,
 normally to qualified institutional buyers.

   The accompanying notes are an integral part of the financial statements.   61
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                                        December 31, 1996
                                                                                        -----------------
<S>                                                                                   <C>
Statement of Assets and Liabilities

Assets:
     Investments, at value (cost $309,944,622) (Note 2).......................        $       357,237,341
     Cash.....................................................................                     83,359
     Foreign currency, at value (cost $4,918,907).............................                  4,903,738
     Receivables from:
       Investments sold.......................................................                  1,783,534
       Open forward foreign currency contracts (Note 2).......................                    612,258
       Fund shares sold.......................................................                    216,824
       Interest and dividends.................................................                    267,791
       Foreign taxes withheld.................................................                    274,223
       Investment manager (Note 3)............................................                     54,877
                                                                                      -------------------
         Total assets.........................................................                365,433,945
                                                                                      -------------------

Liabilities:
     Payables for:
       Investments purchased..................................................                  6,371,010
       Borrowings under line of credit (Note 8)...............................                  1,600,000
       Fund shares redeemed...................................................                    456,891
       Directors' fees and expenses (Note 3)..................................                      5,177
       Affiliates (Note 3):
         Investment management fees...........................................                    254,834
         Administration fees..................................................                     29,289
         Service and distribution fees........................................                        219
     Accrued expenses and other liabilities...................................                     64,713
                                                                                      -------------------
         Total liabilities....................................................                  8,782,133
                                                                                      -------------------
     Net assets...............................................................        $       356,651,812
                                                                                      ===================

Net assets consist of:
     Paid-in capital..........................................................        $       320,990,580
     Undistributed net investment income......................................                    113,978
     Accumulated net realized loss on investments and
       foreign currency translations..........................................               (12,355,482)
     Net unrealized appreciation on investments, forward foreign currency
       contracts, foreign currency and other assets and liabilities...........                 47,902,736
                                                                                      -------------------
                                                                                      $       356,651,812
                                                                                      ===================

Net assets:
     Class 1..................................................................        $           112,681
                                                                                      ===================
     Class 2..................................................................        $           114,019
                                                                                      ===================
     Class 3..................................................................        $           114,468
                                                                                      ===================
     Class 4..................................................................        $       356,310,644
                                                                                      ===================
Shares outstanding:
     Class 1..................................................................                     10,176
                                                                                      ===================
     Class 2..................................................................                     10,281
                                                                                      ===================
     Class 3..................................................................                     10,315
                                                                                      ===================
     Class 4..................................................................                 32,070,618
                                                                                      ===================
Net asset value, offering price and
redemption price per share:
     Class 1..................................................................        $             11.07
                                                                                      ===================
     Class 2..................................................................        $             11.09
                                                                                      ===================
     Class 3..................................................................        $             11.10
                                                                                      ===================
     Class 4..................................................................        $             11.11
                                                                                      ===================
</TABLE> 

62 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                        Year ended
                                                                                     December 31, 1996
                                                                                     ----------------
<S>                                                                              <C>
Statement of Operations

Investment income:
     Dividends (net of withholding tax of $468,717)............................   $         4,155,451
     Interest..................................................................               350,237
                                                                                  -------------------
       Total investment income.................................................             4,505,688
                                                                                  -------------------
Expenses (Note 1):
     Investment management fees (Note 3).......................................             2,398,114
     Custody fees..............................................................               319,874
     Audit and legal fees......................................................                 9,403
     Excise taxes..............................................................                 6,854
     Directors' fees (Note 3)..................................................                15,246
     Fees waived by the investment manager (Note 3)............................              (196,769)
                                                                                  -------------------
                                                                                            2,552,722
     Administration fees (Note 3):
       Class 1.................................................................                   698
       Class 2.................................................................                   569
       Class 3.................................................................                   465
       Class 4.................................................................               273,938
     Distribution and service fees (Note 3):
       Class 1.................................................................                   763
       Class 2.................................................................                   157
                                                                                  -------------------
         Net operating expenses................................................             2,829,312
     Interest expense (Note 8).................................................                25,373
                                                                                  -------------------
         Net investment income.................................................             1,651,003
                                                                                  -------------------

Realized and unrealized gain (loss) from investments
and foreign currency:
     Net realized gain on:
       Investment transactions.................................................             5,099,336
       Foreign currency transactions...........................................             5,633,016
                                                                                  -------------------
         Net realized gain.....................................................            10,732,352
                                                                                  -------------------
     Net change in unrealized appreciation
     (depreciation) on:
       Investments.............................................................            36,945,058
       Translation of assets and liabilities in foreign currencies.............              (414,384)
                                                                                  -------------------
         Net unrealized gain...................................................            36,530,674
                                                                                  -------------------
         Net realized and unrealized gain from investments
          and foreign currency.................................................            47,263,026
                                                                                  -------------------
     Net increase in net assets resulting from operations......................   $        48,914,029
                                                                                  ===================
</TABLE>
   The accompanying notes are an integral part of the financial statements.   63
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                                  Year ended             Year ended
                                                                               December 31, 1996      December 31, 1995
                                                                               -----------------      -----------------
<S>                                                                          <C>                     <C>
Statements of Changes in Net Assets

Increase (Decrease) in Net Assets:
Operations:
     Net investment income..............................................     $         1,651,003    $         1,410,289
     Net realized gain (loss) on investment and foreign
      currency transactions.............................................              10,732,352           (11,680,240)
     Net change in unrealized appreciation (depreciation) on
      investments and translation of assets and liabilities in
      foreign currencies................................................              36,530,674             19,939,116
                                                                             -------------------    -------------------
         Net increase in net assets resulting from operations...........              48,914,029              9,669,165
                                                                             -------------------    -------------------

Distributions to shareholders (Note 2):
     From net investment income:
     Class 1............................................................                   (263)                     --
     Class 2............................................................                   (433)                  (195)
     Class 3............................................................                   (501)                  (467)
     Class 4............................................................             (1,825,896)            (1,565,611)
                                                                             -------------------    -------------------
         Total distributions from net investment income.................             (1,827,093)            (1,566,273)
                                                                             -------------------    -------------------
     In excess of net investment income:
     Class 1............................................................                   (794)                  (830)
     Class 2............................................................                 (1,308)                  (952)
     Class 3............................................................                 (1,513)                  (947)
     Class 4............................................................             (5,515,423)            (2,389,653)
                                                                             -------------------    -------------------
         Total distributions in excess of net investment income.........             (5,519,038)            (2,392,382)
                                                                             -------------------    -------------------

Net fund share transactions (Note 5):
     Class 1............................................................                 (13,956)                16,103
     Class 2............................................................                   1,742                  1,191
     Class 3............................................................                   2,018                  1,430
     Class 4............................................................              94,070,522             64,817,475
                                                                             -------------------    -------------------
      Increase in net assets from net fund share transactions...........              94,060,326             64,836,199
                                                                             -------------------    -------------------
     Total increase in net assets.......................................             135,628,224             70,546,709
Net assets:
     Beginning of period................................................             221,023,588            150,476,879
                                                                             -------------------    -------------------
     End of period (including undistributed net investment income
      of $113,978 and distributions in excess of net investment
     income of $215,389)................................................     $       356,651,812    $       221,023,588
                                                                             ===================    ===================
</TABLE>

64 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE> 
<CAPTION> 
                                                                                                      Class 1
                                                                                                    ----------
                                                                               Year ended           Year ended         Period Ended
                                                                                12/31/96             12/31/95           12/31/94**
                                                                               ----------           ----------         ------------
<S>                                                                            <C>                  <C>                <C> 
Net asset value, beginning of period                                           $     9.54           $     9.25         $    10.00
                                                                               ----------           ----------         -----------

Income (loss) from investment operations:
  Net investment income                                                             (0.07)               (0.03)             (0.02)
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                               1.70                 0.40              (0.73)
                                                                               ----------           ----------         -----------
   Total income (loss) from investment operations                                    1.63                 0.37              (0.75)
                                                                               ----------           ----------         -----------
Less distributions to shareholders:
  From net investment income                                                        (0.10)                  --                 --
  In excess of net investment income                                                   --                (0.08)                --
                                                                               ----------           ----------         -----------
   Total distributions                                                              (0.10)               (0.08)                --
                                                                               ----------           ----------         -----------
Net asset value, end of period                                                 $    11.07           $     9.54         $     9.25
                                                                               ==========           ==========         ===========
Total Return                                                                        17.09%                3.96%             (7.50)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                                  $113                 $112                $93
  Net expenses to average daily net assets#                                          2.15%                2.15%              2.15%*
  Net investment income to average daily net assets                                 (0.51)%              (0.40)%            (1.10)%*

  Portfolio turnover rate                                                             58%                  121%                18%
  Average broker commission rate (a)                                           $   .0254                   N/A                N/A

   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                     2.22%                 2.24%              2.24%*
<CAPTION> 
                                                                                                      Class 2
                                                                                                    ----------
                                                                               Year ended           Year ended         Period Ended
                                                                                12/31/96             12/31/95           12/31/94**
                                                                               ----------           ----------         ------------
<S>                                                                            <C>                  <C>                <C> 
Net asset value, beginning of period                                           $     9.56           $     9.26         $    10.00
                                                                               ----------           ----------         ----------
Income (loss) from investment operations:
  Net investment income                                                              0.00                 0.02              (0.01)
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                               1.70                 0.40              (0.73)
                                                                               ----------           ----------         ----------
   Total income (loss) from investment operations                                    1.70                 0.42              (0.74)
                                                                               ----------           ----------         ----------
Less distributions to shareholders:
  From net investment income                                                        (0.17)               (0.02)                --
  In excess of net investment income                                                   --                (0.10)                --
                                                                               ----------           ----------         ----------
   Total distributions                                                              (0.17)               (0.12)                --
                                                                               ----------           ----------         -----------
Net asset value, end of period                                                 $    11.09           $     9.56         $     9.26
                                                                               ==========           ==========         ==========
Total Return                                                                        17.85%                4.52%             (7.40)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                                  $114                  $97                $93
  Net expenses to average daily net assets#                                          1.60%                1.60%              1.60%*
  Net investment income to average daily net assets                                  0.02%                0.19%             (0.55)%*

  Portfolio turnover rate                                                              58%                 121%                18%
  Average broker commission rate (a)                                           $    .0254                  N/A                N/A

   #Computed after giving effect to the reduction in
   management fee by MassMutual. Without this reduction of
   fees by the investment manager, the ratio of expenses
   to average daily net assets would have been:                                      1.67%                1.69%              1.69%*
</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

   The accompanying notes are an integral part of the financial statements.   65
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE> 
<CAPTION> 
                                                                                                  Class 3
                                                                                                 ----------
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                            ----------           ----------         ------------
<S>                                                                         <C>                  <C>                <C> 
Net asset value, beginning of period                                        $     9.57           $     9.27         $     10.00
                                                                            ----------           ----------         -----------

Income (loss) from investment operations:
  Net investment income                                                           0.03                 0.04               (0.00)
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                            1.70                 0.40               (0.73)
                                                                            ----------           ----------         -----------
   Total income (loss) from investment operations                                 1.73                 0.44               (0.73)
                                                                            ----------           ----------         -----------
Less distributions to shareholders:
  From net investment income                                                     (0.20)               (0.05)                 --
  In excess of net investment income                                                --                (0.09)                 --
                                                                            ----------           ----------         ----------- 
   Total distributions                                                           (0.20)               (0.14)                 --
                                                                            ----------           ----------         -----------
Net asset value, end of period                                              $    11.10           $     9.57         $      9.27
                                                                            ==========           ==========         ===========
Total Return                                                                     18.11%                4.78%              (7.30)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                               $114                  $97                 $93
  Net expenses to average daily net assets#                                       1.35%                1.35%               1.35%*
  Net investment income to average daily net assets                               0.27%                0.45%              (0.30)%*
  Portfolio turnover rate                                                           58%                 121%                 18%
  Average broker commission rate (a)                                        $    .0254                  N/A                 N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                  1.42%                1.44%               1.44%*
<CAPTION> 
                                                                                                  Class 4
                                                                                                  -------
                                                                            Year ended           Year ended         Period Ended
                                                                             12/31/96             12/31/95           12/31/94**
                                                                            ----------           ----------         ------------
<S>                                                                         <C>                  <C>                <C> 
Net asset value, beginning of period                                        $     9.58           $     9.28         $     10.00
                                                                            ----------           ----------         -----------
Income (loss) from investment operations:
  Net investment income                                                           0.06                 0.07                0.00
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                            1.71                 0.41               (0.72)
                                                                            ----------           ----------         ----------- 
   Total income (loss) from investment operations                                 1.77                 0.48               (0.72)
                                                                            ----------           ----------         -----------
Less distributions to shareholders:
  From net investment income                                                     (0.24)               (0.07)                 --
  In excess of net investment income                                                --                (0.11)                 --
                                                                            ----------           ----------         -----------
   Total distributions                                                           (0.24)               (0.18)                 --
                                                                            ----------           ----------         -----------
Net asset value, end of period                                              $    11.11           $     9.58         $      9.28
                                                                            ==========           ==========         ===========
Total Return@                                                                    18.51%                5.13%              (7.20)%
                                         
Ratios / Supplemental Data:

  Net assets, end of period (000's)                                           $356,311             $220,718            $150,199
  Net expenses to average daily net assets#                                     1.0020%              1.0020%             1.0020%*
  Net investment income to average daily net assets                               0.59%                0.76%               0.04%*
  Portfolio turnover rate                                                           58%                 121%                 18%
  Average broker commission rate (a)                                        $    .0254                  N/A                 N/A
   #Computed after giving effect to the reduction in
    management fee by MassMutual. Without this reduction of
    fees by the investment manager, the ratio of expenses
    to average daily net assets would have been:                                1.0718%              1.0920%             1.0877%*
</TABLE> 

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
 @ Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

66   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements
- --------------------------------------------------------------------------------

1.  The Trust

MassMutual Institutional Funds (the "Trust") is registered under the Investment
Company Act of 1940, as amended (the "1940 Act"), as an open-end, diversified
management investment company. The Trust is organized under the laws of the
Commonwealth of Massachusetts as a Massachusetts business trust pursuant to an
Agreement and Declaration of Trust dated May 28, 1993, as amended. The Trust
consists of seven separate series of shares (each individually referred to as a
"Fund" or collectively as the "Funds"), each having four classes of shares:
Class 1, Class 2, Class 3 and Class 4. Class 1, Class 2 and Class 3 shares of
each Fund are offered primarily to employer-sponsored defined contribution plans
that satisfy the qualification requirements of Section 401(a) of the Internal
Revenue Code of 1986, as amended (the "Code"). Class 4 shares of each Fund are
available only to separate investment accounts ("SIAs") of Massachusetts Mutual
Life Insurance Company ("MassMutual") in which corporate qualified plans
including defined contribution plans and defined benefit plans are permitted to
invest pursuant to the issuance of group annuity contracts. The Funds are
MassMutual Prime Fund ("Prime Fund"), MassMutual Short-Term Bond Fund
("Short-Term Bond Fund"), MassMutual Core Bond Fund ("Core Bond Fund"),
MassMutual Balanced Fund ("Balanced Fund"), MassMutual Value Equity Fund ("Value
Equity Fund"), MassMutual Small Cap Value Equity Fund ("Small Cap Value Equity
Fund"), and MassMutual International Equity Fund ("International Equity Fund"),
all of which commenced operations on October 3, 1994.


2.  Significant Accounting Policies

The following is a summary of significant accounting policies followed
consistently by each Fund in the preparation of the financial statements in
conformity with generally accepted accounting principles. The preparation of the
financial statements in accordance with generally accepted accounting principles
requires management to make estimates and assumptions that affect the reported
amounts and disclosures in the financial statements. Actual results could differ
from those estimates.


Investment Valuation

Equity securities are valued on the basis of valuations furnished by a pricing
service, authorized by the Board of Trustees ("Trustees"), which provides the
last reported sale price for securities listed on a national securities exchange
or on the NASDAQ national market system, or in the case of over-the-counter
securities not so listed, the last reported bid price. Debt securities (other
than short-term obligations with a remaining maturity of sixty days or less) are
valued on the basis of valuations furnished by a pricing service, authorized by
the Trustees, which determines valuations taking into account appropriate
factors such as institutional-size trading in similar groups of securities,
yield, quality, coupon rate, maturity, type of issue, trading characteristics
and other market data. Money market obligations with a remaining maturity of
sixty days or less are valued at either amortized cost or at original cost plus
accrued interest, whichever approximates current market value. All other
securities and other assets, including debt securities for which the prices
supplied by a pricing agent are deemed by MassMutual not to be representative of
market values, and including restricted securities and securities for which no
market quotation is available, are valued at fair value in accordance with
procedures approved by and determined in good faith by the Trustees, although
the actual calculation may be done by others.


Portfolio securities traded on more than one national securities exchange are
valued at the last price on the business day as of which such value is being
determined at the close of the exchange representing the principal market for
such securities. All assets and liabilities expressed in foreign currencies will
be converted into U.S. dollars at the mean between the buying and selling rates
of such currencies against U.S. dollars last quoted by any major bank. If such
quotations are not available, the rate of exchange will be determined in
accordance with policies established by the Trustees.

                                                                              67
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

Accounting for Investments


Investment transactions are accounted for on the trade date. Realized gains and
losses on sales of investments and unrealized appreciation and depreciation of
investments are computed on the specific identification cost method. Interest
income, adjusted for amortization of discounts and premiums on investments, is
earned from the settlement date and is recorded on the accrual basis. Dividend
income is recorded on the ex-dividend date.


Federal Income Tax


It is each Fund's intent to continue to comply with the provisions of subchapter
M of the Code applicable to a regulated investment company. Under such
provisions, the Funds will not be subject to federal income taxes on their
ordinary income and net realized capital gain to the extent they are distributed
or deemed to have been distributed to their shareholders. Therefore, no Federal
income tax provision is required.


Dividends and Distributions to Shareholders


Dividends from net investment income and distributions of any net realized
capital gains of each Fund are declared and paid annually and at other times as
may be required to satisfy tax or regulatory requirements. Distributions to
shareholders are recorded on the ex-dividend date. Income and capital gain
distributions are determined in accordance with income tax regulations which may
differ from generally accepted accounting principles. These differences are
primarily due to investments in forward contracts, passive foreign investment
companies, the deferral of wash sale losses, and paydowns on certain
mortgage-backed securities. As a result, net investment income (loss) and net
realized gain (loss) on investment transactions for a reporting period may
differ significantly from distributions during such period. Accordingly, the
Funds may periodically make reclassifications among certain of their capital
accounts without impacting the net asset value of the Funds.


Foreign Currency Translation


The books and records of the Funds are maintained in U.S. dollars. The market
values of foreign currencies, foreign securities and other assets and
liabilities denominated in foreign currencies are translated into U.S. dollars
at the mean of the buying and selling rates of such currencies against the U.S.
dollar at the end of each business day. Purchases and sales of foreign
securities and income and expense items are translated at the rates of exchange
prevailing on the respective dates of such transactions. The Funds do not
isolate that portion of the results of operations arising from changes in the
exchange rates from that portion arising from changes in the market prices of
securities.

Net realized foreign currency gains and losses resulting from changes in
exchange rates include foreign currency gains and losses between trade date and
settlement date on investment securities transactions, foreign currency
transactions and the difference between the amounts of dividends recorded on the
books of the Funds and the amount actually received.


Forward Foreign Currency Contracts


Each Fund may enter into forward foreign currency contracts in order to convert
foreign denominated securities or obligations to U.S. dollar denominated
investments. The International Equity Fund may engage in such transactions to
manage the value of portfolio holdings against future movements in certain
foreign currency exchange rates. A forward foreign currency contract is an
agreement between two parties to buy and sell a currency at a set price on a
future date. The market value of a forward currency contract fluctuates with
changes in forward foreign currency exchange rates. Forward foreign currency
contracts are marked to market daily and the change in their value is recorded
by the Funds as an unrealized gain or loss. When a forward foreign currency
contract is extinguished, through delivery or offset by entering into another
forward foreign currency contract, the Funds record a realized gain or loss
equal to the difference between the value of the contract at the time it was
opened and the value of the contract at the time it was extinguished or offset.

Forward foreign currency contracts involve a risk of loss from the potential
inability of counterparties to meet the terms of their contracts and from
unanticipated movements in foreign currency values and interest rates.

68
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

The notional or contractual amounts of these instruments represent the
investments the Funds have in particular classes of financial instruments and do
not necessarily represent the amounts potentially subject to risk. The
measurement of the risk associated with these instruments is meaningful only
when all related and offsetting transactions are considered. A summary of
obligations for the International Equity Fund under these financial instruments
at December 31, 1996 is as follows:

<TABLE> 
<CAPTION> 
                                                                 In
                     Contracts                                Exchange                                Unrealized
Settlement              to                Units of            for U.S.           Contracts at        Appreciation
   Date           Deliver/Receive         Currency             Dollars               Value          (Depreciation)
- ----------        ---------------         --------            --------           ------------       --------------
 <S>        <C>                         <C>               <C>                  <C>                  <C> 
 BUYS
 01/13/97   Austrian Schilling              2,124,732     $       196,807      $      196,017       $        (790)

 SELLS
 01/02/97   British Pound                     114,041             190,471             195,147               (4,676)
 01/03/97   British Pound                     334,350             562,433             572,139               (9,706)
 01/07/97   British Pound                     110,538             188,114             189,153               (1,039)
 01/27/97   Japanese Yen                4,007,200,000          35,305,727          34,677,258               628,469
                                                                                                    ---------------
                                                                                                            613,048
                                                                                                    ---------------
                                                                                                    $       612,258
                                                                                                    ===============
</TABLE> 

Forward Commitments


Each Fund may purchase or sell securities on a "when issued" or delayed delivery
or on a forward commitment basis. The Funds use forward commitments to manage
interest rate exposure or as a temporary substitute for purchasing or selling
particular debt securities. Forward commitments are not used for purposes of
trading. Delivery and payment for securities purchased on a forward commitment
basis can take place a month or more after the date of the transaction. The
Funds instruct the custodian to segregate assets in a separate account with a
current market value at least equal to the amount of its forward purchase
commitments. The price of the underlying security and the date when the
securities will be delivered and paid for are fixed at the time the transaction
is negotiated. The value of the forward commitment is determined by management
using a commonly accepted pricing model and fluctuates based upon changes in the
value of the underlying security and market repurchase rates. Such rates equate
the counterparty's cost to purchase and finance the underlying security to the
earnings received on the security and forward delivery proceeds. The Funds
record on a daily basis the unrealized appreciation/depreciation based upon
changes in the value of the forward commitment. When a forward commitment
contract is closed, the Funds record a realized gain or loss equal to the
difference between the value of the contract at the time it was opened and the
value of the contract at the time it was extinguished. Forward commitments
involve a risk of loss if the value of the security to be purchased declines
prior to the settlement date. The Funds could also be exposed to loss if they
cannot close out their forward commitments because of an illiquid secondary
market, or the inability of counterparties to perform. The Funds monitor
exposure to ensure counterparties are creditworthy and concentration of exposure
is minimized. A summary of open obligations under these forward commitments at
December 31, 1996, is as follows:

<TABLE> 
<CAPTION> 

       Forward               Expiration       Aggregate
     Commitment                 of            Face Value                             Market        Unrealized
  Contracts to Buy           Contracts       of Contracts           Cost              Value      (Depreciation)
  ----------------           ----------      ------------           ----             ------      --------------
<S>                        <C>               <C>                 <C>               <C>               <C> 
Core Bond Fund
 U.S. Treasury Note
5.875% 11/15/1999          February 1997     $ 9,250,000         $ 9,215,674       $ 9,203,935       ($11,739)

Balanced Fund
 U.S. Treasury Note
5.875% 11/15/1999          February 1997      $1,900,000          $1,892,949        $1,890,538       ($ 2,411)
</TABLE> 

                                                                              69
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

Allocation of Operating Activity


In maintaining the records for the Funds, the income and expense accounts are
allocated to each class of shares. Investment income, unrealized and realized
gains or losses are prorated among the classes of shares based on the relative
net assets of each. Expenses are allocated to each class of shares depending on
the nature of the expenditures. Administration and distribution and service
fees, which are directly attributable to a class of shares, are charged to that
class' operations. Expenses of the Fund not directly attributable to the
operations of any class of shares or Fund are prorated among the Funds and
classes to which the expense relates based on the relative net assets of each.
Total expenses per class are currently limited to a percentage of average daily
net assets, as discussed in Note 3.


3.   Management Fees and Other Transactions With Affiliates


Investment Management Fees


Under an agreement between the Trust and MassMutual, MassMutual is responsible
for providing investment management of each Fund. In return for this service,
MassMutual receives advisory fees monthly based upon each Fund's average daily
net assets at the following annual rates:

<TABLE> 
<S>                                                                <C> 
Prime Fund                                                         .45%
Short-Term Bond Fund                                               .45%
Core Bond Fund                                                     .45%
Balanced Fund                                                      .45%
Value Equity Fund                                                  .45%
Small Cap Value Equity Fund                                        .55%
International Equity Fund                                          .85%
</TABLE> 

MassMutual has entered into investment sub-advisory agreements with two
subsidiaries: David L. Babson & Company, Inc. ("Babson") and HarbourView Asset
Management Corporation ("HarbourView"). These agreements provide that (1)
effective January 1, 1997, Babson will manage the investment and reinvestment of
the assets of the Value Equity Fund, the Small Cap Value Equity Fund and the
Value Equity sector of the Balanced Fund, and (2) HarbourView will manage the
investment and reinvestment of the assets of the International Equity Fund.
Prior to January 1, 1997, Concert Capital Management ("Concert Capital") served
as the investment sub-advisor to the Value Equity Fund, the Small Cap Value
Equity Fund and the Value Equity sector of the Balanced Fund. On January 1,
1996, the employees of Concert Capital became co-employees of Babson. At the
time, both Concert Capital and Babson were wholly-owned subsidiaries of DLB
Acquisition Corporation, a controlled subsidiary of MassMutual. Concert Capital
merged with and into Babson effective December 31, 1996.

MassMutual pays Babson a fee equal to an annual rate of .13% of the average
daily net asset value of the Value Equity Fund and the Value Equity sector of
the Balanced Fund and .25% of the average daily net asset value of the Small Cap
Value Equity Fund. MassMutual pays HarbourView a fee equal to an annual rate of
 .50% of the average daily net asset value of the International Equity Fund.


Administration Fees


Under separate administrative and shareholder services agreements between each
Fund and MassMutual, MassMutual provides certain administrative and shareholder
services and bears some class specific administrative expenses. In return for
these services, MassMutual receives an administrative services fee monthly based
upon the average daily net assets of the applicable class of shares of the Fund
at the following annual rates:

<TABLE> 
<CAPTION> 
                                  Class 1       Class 2        Class 3        Class 4
                               -------------- -------------  -------------  ------------
<S>                                   <C>           <C>            <C>           <C>  
Prime Fund                            .5628%        .5128%         .3152%        .0812%
Short-Term Bond Fund                  .5568%        .5068%         .3092%        .0782%
Core Bond Fund                        .5688%        .5188%         .3212%        .0842%
Balanced Fund                         .5708%        .5208%         .3232%        .0852%
Value Equity Fund                     .5814%        .5314%         .3338%        .0905%
Small Cap Value Equity Fund           .5728%        .5228%         .3252%        .0862%
International Equity Fund             .5948%        .5448%         .4448%        .0972%
</TABLE> 

70
<PAGE>
 
Notes to Financial Statements (Continued)


Distribution and Service Fees

                                                                    
OppenheimerFunds Distributor, Inc. ("Oppenheimer") acts as distributor to each
Fund. MML Investor Services, Inc. ("MMLISI") serves as sub-distributor to each
Fund. MassMutual has a controlling interest in OppenheimerFunds and MMLISI is a
wholly owned subsidiary of MassMutual. Oppenheimer is paid a distribution fee
with respect to Class 1 and Class 2 at the annual rate of .40% and .15%,
respectively, of the value of average daily net assets attributable to those
classes of shares of which a portion is subsequently allocated to MMLISI. The
Funds do not pay any fees directly to MMLISI. MassMutual is also paid a fee for
shareholder services with respect to Class 1 shares of the Funds at the annual
rate of .25% of the value of the average daily net assets of the respective
class of each Fund. These fees are authorized pursuant to separate service and
distribution plans for each of the classes of shares adopted by the Funds
pursuant to Rule 12b-1 under the Investment Company Act and are used by
Oppenheimer to cover expenses primarily intended to result in the sale of those
shares of the Funds.


Expense Limitations

MassMutual has voluntarily agreed to waive a portion of its management fee to
the extent that the aggregate annual operating expenses incurred during the year
exceed the following percentages of the average daily net assets:

<TABLE> 
<CAPTION> 

                                          Class 1        Class 2        Class 3        Class 4
                                       -------------- -------------- -------------- --------------
<S>                                      <C>         <C>             <C>          <C>  
 Prime Fund                               1.65%          1.10%           .75%         .5160%
 Short-Term Bond Fund                     1.65%          1.10%           .75%         .5190%
 Core Bond Fund                           1.65%          1.10%           .75%         .5130%
 Balanced Fund                            1.65%          1.10%           .75%         .5120%
 Value Equity Fund                        1.65%          1.10%           .75%         .5067%
 Small Cap Value Equity Fund              1.75%          1.20%           .85%         .6110%
 International Equity Fund                2.15%          1.60%          1.35%         1.002%
</TABLE> 

MassMutual's management fee for the year ended December 31, 1996 was
$20,477,568, of which $1,925,096 was reimbursed to the Funds.

Other 

Certain officers and directors of the Funds are also officers of
MassMutual. The compensation of unaffiliated directors of the Funds is borne by
the Funds.

At December 31, 1996, MassMutual or separate investment accounts thereof owned
all of the outstanding shares of the Trust.

4.  Purchases And Sales Of Investments

Cost of purchases and proceeds from sales of investment securities (excluding
short-term investments) for the year ended December 31, 1996 were as follows:

<TABLE> 
<CAPTION> 
                                        Long-term U.S.
                                          Government                 Other Long-term
                                          Securities                   Securities
                                  ---------------------        ----------------------
Purchases
<S>                          <C>                             <C> 
Short-Term Bond Fund              $         102,126,595        $          32,662,257
Core Bond Fund                              168,040,130                  117,409,164
Balanced Fund                                48,825,564                   81,833,743
Value Equity Fund                                    --                  366,428,008
Small Cap Value Equity Fund                          --                  126,866,361
International Equity Fund                            --                  255,790,219

Sales

Short-Term Bond Fund               $          39,099,687        $          14,835,789
Core Bond Fund                               111,228,535                   37,231,689
Balanced Fund                                 39,076,581                   45,001,025
Value Equity Fund                                     --                  281,828,695
Small Cap Value Equity Fund                           --                  107,156,414
International Equity Fund                             --                  161,400,001
</TABLE> 

                                                                              71
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

5.     Capital Share Transactions

The Funds are authorized to issue an unlimited number of shares, with no par
value, in one or more of four classes of shares: Class 1, Class 2, Class 3 and
Class 4. Class 1 and Class 2 shares of each Fund are subject to distribution and
service fees. Class 3 shares are not subject to any distribution or service
fees. SIA Investors purchase Class 4 shares directly from the Funds and pay no
distribution or service fees. Changes in shares outstanding for each Fund are as
follows:

<TABLE> 
<CAPTION> 
                                                      Class 1                                 

                                     Year ended                    Year ended                 
                                  December 31, 1996             December 31, 1995             

                                   Shares         Amount         Shares          Amount        
                                  --------       --------       --------        --------       
<S>                               <C>           <C>            <C>              <C> 
Prime Fund
  Sold                                  --             --             --              --      
  Issued as reinvestment
   of dividends                         28          4,288             28           4,178      
  Redeemed                              --             --             --              --      
                                  --------       --------       --------        --------       
  Net increase                          28       $  4,288             28        $  4,178      
                                  ========       ========       ========        ========       

Short-Term Bond Fund
  Sold                                  --             --             --              --      
  Issued as reinvestment
   of dividends                        519          5,285            740           7,530      
  Redeemed                              --             --             --              --      
                                  --------       --------       --------        --------       
  Net increase                         519       $  5,285            740        $  7,530      
                                  ========       ========       ========        ========       

Core Bond Fund
  Sold                                 429          4,520          4,457          49,156      
  Issued as reinvestment
   of dividends                        489          5,156          1,186          12,759      
  Redeemed                          (5,250)       (55,534)            --              --      
                                  --------       --------       --------        --------       
  Net increase (decrease)           (4,332)      $(45,858)         5,643        $ 61,915      
                                  ========       ========       ========        ========       

Balanced Fund
  Sold                                 931         10,969          4,480          49,577      
  Issued as reinvestment
   of dividends                        416          5,173            530           6,084      
  Redeemed                          (5,552)       (65,509)           (23)           (260)     
                                  --------       --------       --------        --------       
  Net increase (decrease)           (4,205)      $(49,367)         4,987        $ 55,401      
                                  ========       ========       ========        ========       

Value Equity Fund
  Sold                                  --             --             --              --      
  Issued as reinvestment
   of dividends                        403          5,884            219           2,751      
  Redeemed                              --             --             --              --      
                                  --------       --------       --------        --------       
  Net increase                         403       $  5,884            219        $  2,751      
                                  ========       ========       ========        ========       

Small Cap Value Equity Fund
  Sold                               4,373         54,090          4,740          49,719      
  Issued as reinvestment
   of dividends                        349          4,660            119           1,356      
  Redeemed                          (9,150)      (108,036)            --              --      
                                  --------       --------       --------        --------       
  Net increase (decrease)           (4,428)      $(49,286)         4,859        $ 51,075      
                                  ========       ========       ========        ========       

International Equity Fund
  Sold                               5,377         55,098          1,610          15,218      
  Issued as reinvestment
   of dividends                        100          1,065             93             885      
  Redeemed                          (7,009)       (70,119)            --              --      
                                  --------       --------       --------        --------       
  Net increase (decrease)           (1,532)      $(13,956)         1,703        $ 16,103      
                                  ========       ========       ========        ========       

<CAPTION> 

                                                           Class 2
                      
                                         Year ended                     Year ended
                                      December 31, 1996              December 31, 1995
                      
                                      Shares          Amount         Shares            Amount
                                     --------        --------       --------          -------
<S>                               <C>               <C>            <C>             <C> 
Prime Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                            33           4,922             32            4,746
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase                             33        $  4,922             32          $ 4,746
                                     ========        ========       ========          =======

Short-Term Bond Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                           584           5,951            796            8,116
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase                            584        $  5,951            796          $ 8,116
                                     ========        ========       ========          =======

Core Bond Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                           562           5,941            861            9,288
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase (decrease)                 562        $  5,941            861          $ 9,288
                                     ========        ========       ========          =======

Balanced Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                           484           6,038            401            4,610
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase (decrease)                 484        $  6,038            401          $ 4,610
                                     ========        ========       ========          =======

Value Equity Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                           456           6,682            267            3,372
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase                            456        $  6,682            267          $ 3,372
                                     ========        ========       ========          =======

Small Cap Value Equity Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                           420           5,622            114            1,300
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase (decrease)                 420        $  5,622            114          $ 1,300
                                     ========        ========       ========          =======

International Equity Fund
  Sold                                     --              --             --               --
  Issued as reinvestment
   of dividends                           161           1,742            124            1,191
  Redeemed                                 --              --             --               --
                                     --------        --------       --------          -------
  Net increase (decrease)                 161        $  1,742            124          $ 1,191
                                     ========        ========       ========          =======
</TABLE> 

72
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                        Class 3                               

                                       Year ended                    Year ended               
                                    December 31, 1996             December 31, 1995           

                                   Shares          Amount         Shares          Amount      
                                  --------       --------       --------        --------     
<S>                             <C>              <C>           <C>              <C> 
Prime Fund
  Sold                                  --             --             --              --    
  Issued as reinvestment                         
   of dividends                         35          5,335             34           5,095    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                          35       $  5,335             34        $  5,095    
                                  ========       ========       ========        ========     
                                                 
Short-Term Bond Fund                             
  Sold                                  --             --             --              --    
  Issued as reinvestment                         
   of dividends                        625          6,381            830           8,467    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                         625       $  6,381            830        $  8,467    
                                  ========       ========       ========        ========     
                                                 
Core Bond Fund                                   
  Sold                                  --             --             --              --    
  Issued as reinvestment                         
   of dividends                        604          6,389            894           9,658    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                         604       $  6,389            894        $  9,658    
                                  ========       ========       ========        ========     
                                                  
Balanced Fund                                     
  Sold                                  --             --             --              --    
  Issued as reinvestment                          
   of dividends                        521          6,510            433           4,977    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                         521       $  6,510            433        $  4,977    
                                  ========       ========       ========        ========     
                                                  
Value Equity Fund                                 
  Sold                                  --             --             --              --    
  Issued as reinvestment                          
   of dividends                        492          7,213            299           3,763    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                         492       $  7,213            299        $  3,763    
                                  ========       ========       ========        ========     
                                                  
Small Cap Value Equity Fund                       
  Sold                                  --             --             --              --    
  Issued as reinvestment                          
   of dividends                        455          6,096            146           1,672    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                         455       $  6,096            146        $  1,672    
                                  ========       ========       ========        ========     
                                                  
International Equity Fund                         
  Sold                                  --             --             --              --    
  Issued as reinvestment                          
   of dividends                        186          2,018            149           1,430    
  Redeemed                              --             --             --              --    
                                  --------       --------       --------        --------     
  Net increase                         186       $  2,018            149        $  1,430    
                                  ========       ========       ========        ========     

<CAPTION> 

                                                          Class 4

                                        Year ended                     Year ended
                                     December 31, 1996              December 31, 1995

                                     Shares          Amount         Shares         Amount
                                    --------        --------       --------       -------
<S>                              <C>             <C>             <C>            <C> 
Prime Fund
  Sold                              2,391,584     370,653,176      1,826,450      281,187,060
  Issued as reinvestment
   of dividends                        86,522      13,067,477         84,068       12,693,332
  Redeemed                         (2,445,697)   (378,881,926)    (1,363,706)    (210,583,290)
                                   ----------   -------------     ----------    -------------
  Net increase                         32,409   $   4,838,727        546,812    $  83,297,102
                                   ==========   =============     ==========    =============

Short-Term Bond Fund
  Sold                              6,074,656      62,871,971      5,136,925       53,696,509
  Issued as reinvestment
   of dividends                       808,935       8,206,104        947,825        9,611,215
  Redeemed                         (4,631,745)    (47,999,711)    (4,819,336)     (50,374,106)
                                   ----------   -------------     ----------    -------------
  Net increase                      2,251,846   $  23,078,364      1,265,414    $  12,933,618
                                   ==========   =============     ==========    =============

Core Bond Fund
  Sold                             15,244,478     161,638,362      8,241,236       89,191,723
  Issued as reinvestment
   of dividends                     1,838,613      19,317,124      1,952,750       20,953,505
  Redeemed                         (6,519,179)    (69,250,775)    (6,340,632)     (67,005,587)
                                   ----------   -------------     ----------    -------------
  Net increase                     10,563,912   $ 111,704,711      3,853,354    $  43,139,641
                                   ==========   =============     ==========    =============

Balanced Fund
  Sold                             16,529,257     200,170,935     17,612,664      191,493,187
  Issued as reinvestment
   of dividends                     2,193,746      27,325,515      1,722,693       19,759,099
  Redeemed                        (12,780,860)   (154,960,358)   (14,889,389)    (160,925,764)
                                   ----------   -------------     ----------    -------------
  Net increase                      5,942,143   $  72,536,092      4,445,968    $  50,326,522
                                   ==========   =============     ==========    =============

Value Equity Fund
  Sold                             42,761,147     585,609,490     39,224,457      451,052,424
  Issued as reinvestment
   of dividends                     8,235,214     120,574,407      5,223,526       65,653,544
  Redeemed                        (47,300,940)   (651,246,978)   (34,020,780)    (390,453,417)
                                   ----------   -------------     ----------    -------------
  Net increase                      3,695,421   $  54,936,919     10,427,203    $ 126,252,551
                                   ==========   =============     ==========    =============

Small Cap Value Equity Fund
  Sold                             10,428,037     129,033,258      9,765,741      102,623,894
  Issued as reinvestment
   of dividends                     1,500,824      20,087,217        539,817       $6,159,231
  Redeemed                        (11,168,365)   (140,771,695)    (9,110,662)     (97,354,772)
                                   ----------   -------------     ----------    -------------
  Net increase                        760,496   $   8,348,780      1,194,896    $  11,428,353
                                   ==========   =============     ==========    =============

International Equity Fund
  Sold                             14,964,804     154,912,942     11,931,440      112,672,627
  Issued as reinvestment
   of dividends                       672,906       7,341,306        412,266        3,955,148
  Redeemed                         (6,611,341)    (68,183,726)    (5,487,562)     (51,810,300)
                                   ----------   -------------     ----------    -------------
  Net increase                      9,026,369   $  94,070,522      6,856,144    $  64,817,475
                                   ==========   =============     ==========    =============
</TABLE> 

                                                                              73
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

6.  Foreign Securities

The International Equity Fund invests substantially all of its assets in foreign
securities. The other Funds may also invest in foreign securities, subject to
certain percentage restrictions. Investing in securities of foreign companies
and foreign governments involves special risks and considerations not typically
associated with investing in securities of U.S. companies and the U.S.
Government. These risks include revaluation of currencies and future adverse
political and economic developments. Moreover, securities of many foreign
companies and foreign governments and their markets may be less liquid and their
prices more volatile than those of securities of comparable U.S. companies and
the U.S. Government.

7.  Federal Income Tax Information

At December 31, 1996, the cost of securities and the unrealized appreciation
(depreciation) in the value of investments owned by the Funds, as computed on a
Federal income tax basis, are as follows:

<TABLE> 
<CAPTION> 
                                              Federal           Tax Basis            Tax Basis           Net Unrealized
                                             Income Tax         Unrealized           Unrealized           Appreciation
                                               Cost            Appreciation         Depreciation         (Depreciation)
                                         ---------------     ---------------       -------------      -----------------
<S>                                   <C>                  <C>                  <C>                   <C> 
Prime Fund                             $     260,002,847    $          2,614      $      (10,702)      $         (8,088)
Short-Term Bond Fund                         142,542,031           1,257,932            (240,203)             1,017,729
Core Bond Fund                               348,014,562           6,739,419          (2,019,357)             4,720,062
Balanced Fund                                456,772,419          86,711,748            (616,389)            86,095,359
Value Equity Fund                          1,768,842,158         713,420,243          (1,562,317)           711,857,926
Small Cap Value Equity Fund                  345,263,421         119,498,338          (8,280,372)           111,217,966
International Equity Fund                    309,948,749          59,397,218         (12,108,626)            47,288,592
</TABLE> 

At December 31, 1996, the following Funds have available, for Federal income tax
purposes, unused capital losses:

<TABLE> 
<CAPTION> 
                                         Amount                            Expiration Date
                              ---------------------------------  -------------------------------------
<S>                               <C>                                  <C> 
Prime Fund                                  $     2,082                      December 31, 2003
Prime Fund                                        2,368                      December 31, 2004
Short-Term Bond Fund                            295,197                      December 31, 2004
Core Bond Fund                                1,885,881                      December 31, 2004
International Equity Fund                    11,789,843                      December 31, 2003
</TABLE> 

8.  Line of Credit

On January 11, 1996, the Trust, on behalf of each Fund, entered into a
discretionary line of credit agreement with PNC Bank, N.A. Each Fund may borrow
under the line of credit, provided that the Trust's borrowings do not exceed
$50,000,000 in the aggregate at any one time. Interest is charged based on
outstanding borrowings at the Federal Funds Rate plus .45%. Only the
International Equity Fund utilized the line of credit during the year ended
December 31, 1996. Average daily borrowings for the year ended December 31, 1996
were $3,517,944 and the average interest rate was 5.77%. The maximum borrowing
outstanding during the year ended December 31, 1996 was $9,870,500.

74
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Portfolio Manager Report (Continued)
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                       <C>            <C> 
SHORT-TERM INVESTMENTS - 99.9%
Commercial Paper -- 99.3%
Aristar, Inc.
 5.660% 8/28/1997          $ 4,450,000     $  4,409,421
Boston Scientific
 Corporation
 5.800% 7/01/1997              315,000          315,000
Boston Scientific
 Corporation
 5.820% 9/03/1997            1,045,000        1,034,318
Boston Scientific
 Corporation
 5.850% 9/03/1997            3,100,000        3,068,311
Boston Scientific
 Corporation
 5.870% 7/10/1997            1,725,000        1,722,468
Burlington Northern
 Santa Fe Corporation
 5.800% 8/07/1997            9,830,000        9,771,402
Carter Holt Harvey
 Limited
 5.810% 9/15/1997            5,500,000        5,433,236
Carter Holt Harvey
 Limited
 5.810% 9/16/1997            5,200,000        5,136,047
Central and South
 West Corporation
 5.800% 8/26/1997            7,435,000        7,367,920
Cincinnati Bell Inc.
 5.560% 8/18/1997            6,000,000        5,955,520
Comdisco, Inc.
 5.820% 7/17/1997            5,330,000        5,316,213
Comdisco, Inc.
 5.830% 9/15/1997            1,900,000        1,876,936
Comdisco, Inc.
 5.850% 9/19/1997            1,200,000        1,184,667
ConAgra, Inc.
 5.750% 8/29/1997            4,535,000        4,492,264
Cox Enterprises, Inc.
 5.780% 7/16/1997            5,245,000        5,232,368
Cox Enterprises, Inc.
 5.790% 7/11/1997            3,385,000        3,379,556
Crown Cork & Seal
 Company Inc.
 5.820% 8/08/1997            4,400,000        4,372,969
Crown Cork & Seal
 Company Inc.
 5.830% 9/29/1997            2,640,000        2,602,050
CSX Corporation
 5.750% 7/14/1997            3,695,000        3,687,328
CSX Corporation
 5.800% 12/01/1997           6,000,000        5,853,375
Dominion Resources,
 Inc.
 5.800% 8/27/1997            4,375,000        4,334,823
Dominion Resources,
 Inc.
 5.840% 7/22/1997            6,300,000        6,278,538
Echlin, Inc.
 5.640% 8/01/1997            4,130,000        4,109,942
Finova Capital
 Corporation
 5.640% 1/29/1998            4,630,000        4,473,224
General Motors
 Acceptance
 Corporation
 5.420% 7/30/1997            3,640,000        3,624,107
General Motors
 Acceptance
 Corporation
 5.700% 12/03/1997           6,800,000        6,631,653
Harris Corporation
 5.800% 7/09/1997            5,700,000        5,692,653
Harris Corporation
 5.800% 7/21/1997            2,140,000        2,133,105
Illinois Power
 Company
 5.750% 7/08/1997              815,000          814,089
Illinois Power
 Company
 5.800% 7/23/1997            5,080,000        5,061,994
Illinois Power
 Company
 5.820% 8/05/1997            4,715,000        4,688,321
Lockheed Martin
 Corporation
 5.500% 7/28/1997            4,000,000        3,983,500
Lockheed Martin
 Corporation
 5.740% 7/31/1997            1,500,000        1,492,825
Lockheed Martin
 Corporation
 5.780% 7/08/1997            4,965,000        4,959,420
Mead Corporation
 5.880% 9/22/1997            8,580,000        8,466,255
ORIX Credit Alliance,  Inc.
 5.530% 7/24/1997            3,550,000        3,537,458
ORIX Credit Alliance,
 Inc.
 5.830% 9/19/1997            3,875,000        3,825,486
ORIX Credit Alliance,
 Inc.
 5.920% 10/31/1997           2,200,000        2,157,131
Praxair, Inc.
 5.450% 7/18/1997            3,555,000        3,545,851
Praxair, Inc.
 5.790% 7/02/1997              315,000          314,949
Praxair, Inc.
 5.790% 11/17/1997           1,150,000        1,124,468
Public Service
 Company of Colorado
 5.840% 9/24/1997            6,170,000        6,086,234
Public Service
 Company of Colorado
 5.850% 7/22/1997            1,415,000        1,410,171
Public Service
 Electric and Gas
 Company
 5.820% 7/07/1997            2,750,000        2,747,332
Public Service
 Electric and Gas
 Company
 5.820% 8/04/1997            8,000,000        7,956,027
Rite Aid Corporation
 5.750% 7/10/1997            2,900,000        2,895,831
Rite Aid Corporation
 5.770% 7/01/1997            2,950,000        2,950,000
</TABLE> 
                                                                     (Continued)

   The accompanying notes are an integral part of the financial statements.    5
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                        <C>           <C> 
Rite Aid Corporation
 5.800% 7/14/1997          $ 1,100,000     $  1,097,696
Rite Aid Corporation
 5.800% 7/25/1997            3,000,000        2,988,400
Textron Financial
 Corporation
 5.820% 7/03/1997            5,465,000        5,463,233
Textron Financial
 Corporation
 5.830% 7/07/1997              800,000          799,223
Textron Financial
 Corporation
 5.850% 7/07/1997            1,035,000        1,033,991
Timken Company
 5.800% 7/15/1997            4,000,000        3,990,977
Timken Company
 5.850% 9/16/1997            4,550,000        4,494,041
Union Camp Corp.
 5.650% 10/17/1997           2,500,000        2,456,875
Union Camp Corp.
 5.720% 7/23/1997            3,165,000        3,153,936
Union Pacific
 Corporation
 5.830% 9/11/1997            4,735,000        4,680,547
Union Pacific
 Corporation
 5.850% 7/28/1997            3,275,000        3,260,631
Union Pacific
 Corporation
 5.850% 9/17/1997            2,735,000        2,700,926
UOP
 5.830% 8/01/1997            6,000,000        5,969,879
UOP
 5.830% 8/06/1997            2,885,000        2,868,180
Whirlpool Financial
 Corporation
 5.800% 8/12/1997            1,915,000        1,902,042
Whirlpool Financial
 Corporation
 5.800% 9/04/1997            3,030,000        2,998,543
Whirlpool Financial
 Corporation
 5.820% 8/22/1997            5,760,000        5,711,578
                                           ------------
                                            243,077,454
                                           ------------ 

Discount Note -- 0.6%
Federal Farm Credit
 Bank
 5.230% 8/19/1997            1,530,000        1,519,109
                                           ------------ 
TOTAL SHORT-TERM
INVESTMENTS                                 244,596,563
                                           ------------ 
(Cost $244,588,726)+

TOTAL INVESTMENTS -- 99.9%                  244,596,563

Other Assets/
(Liabilities) - 0.1%                            358,000
                                           ------------ 

NET ASSETS -- 100.0%                       $244,954,563
                                           ============
</TABLE> 

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)

6    The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                                   June 30, 1997
                                                                                    (Unaudited)
                                                                                  --------------
<S>                                                                             <C>
Statement of Assets and Liabilities

Assets:
   Short-term investments, at value (cost $244,588,726) (Note 2)...............   $  244,596,563
   Cash........................................................................            2,640
   Receivables from:                                                            
     Fund shares sold..........................................................        1,938,518
                                                                                  --------------
       Total assets............................................................      246,537,721
                                                                                  --------------
                                                                                
Liabilities:                                                                    
   Payables for:                                                                
     Fund shares redeemed......................................................        1,454,783
     Directors' fees and expenses (Note 3).....................................            5,202
     Affiliates (Note 3):                                                       
        Investment management fees.............................................           98,510
        Administration fees....................................................           17,885
        Service and distribution fees..........................................              223
   Accrued expenses and other liabilities......................................            6,555
                                                                                  --------------
        Total liabilities......................................................        1,583,158
                                                                                  --------------
   Net assets..................................................................   $  244,954,563
                                                                                  ==============
                                                                                
Net assets consist of:                                                          
   Paid-in capital.............................................................   $  238,247,351
   Undistributed net investment income.........................................        6,710,299
   Accumulated net realized loss on investments................................          (10,924)
   Net unrealized appreciation on investments..................................            7,837
                                                                                  --------------
                                                                                  $  244,954,563
                                                                                  ==============
Net assets:                                                                     
      Class 1..................................................................   $      111,959
                                                                                  ==============
      Class 2..................................................................   $      113,610
                                                                                  ==============
      Class 3..................................................................   $      114,477
                                                                                  ==============
      Class 4..................................................................   $  244,614,517
                                                                                  ==============
Shares outstanding:                                                             
      Class 1..................................................................          726.501
                                                                                  ==============
      Class 2..................................................................          734.255
                                                                                  ==============
      Class 3..................................................................          738.294
                                                                                  ==============
      Class 4..................................................................    1,578,770.623
                                                                                  ==============
Net asset value, offering price and                                             
redemption price per share:                                                     
      Class 1..................................................................   $       154.11
                                                                                  ==============
      Class 2..................................................................   $       154.73
                                                                                  ==============
      Class 3..................................................................   $       155.06
                                                                                  ==============
      Class 4..................................................................   $       154.94
                                                                                  ==============
</TABLE>

   The accompanying notes are an integral part of the financial statements.    7
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                                                 Six months ended
                                                                                   June 30, 1997
                                                                                    (Unaudited)
                                                                                   ------------
<S>                                                                              <C> 
Statement of Operations

Investment income:
     Interest...................................................................    $  7,305,942 
                                                                                    ------------ 
     Expenses (Note 1):                                                                          
     Investment management fees (Note 3)........................................         576,162 
     Custody fees...............................................................          11,181 
     Audit and legal fees.......................................................           3,281 
     Directors' fees (Note 3)...................................................          10,410 
     Fees waived by the investment manager (Note 3).............................         (29,758)
                                                                                    ------------ 
                                                                                         571,276 
     Administration fees (Note 3):                                                               
       Class 1..................................................................             309 
       Class 2..................................................................             286 
       Class 3..................................................................             177 
       Class 4..................................................................         103,830 
     Distribution and service fees (Note 3):                                                     
       Class 1..................................................................             357 
       Class 2..................................................................              84 
                                                                                    ------------ 
         Net expenses...........................................................         676,319 
                                                                                    ------------ 
         Net investment income..................................................       6,629,623 
                                                                                    ------------  

Realized and unrealized gain (loss):
     Net realized loss on investment transactions...............................          (3,773)
     Net change in unrealized appreciation (depreciation)                                        
     on investments.............................................................          15,925 
                                                                                    ------------ 
         Net realized and unrealized gain.......................................          12,152 
                                                                                    ------------ 
Net increase in net assets resulting from operations.....................           $  6,641,775 
                                                                                    ============  
<CAPTION> 
                                                               Six months ended
                                                                 June 30, 1997       Year ended
                                                                 (Unaudited)      December 31, 1996
                                                                ---------------    -------------
<S>                                                            <C>               <C> 
Statements of Changes in Net Assets

Increase (Decrease) in Net Assets:
Operations:
      Net investment income...................................  $     6,629,623    $  13,029,745
      Net realized loss on investment transactions............           (3,773)          (5,068)
      Net change in unrealized appreciation (depreciation)
       on investments.........................................           15,925           11,447
                                                                ---------------    -------------
       Net increase in net assets resulting from operations...        6,641,775       13,036,124
                                                                ---------------    -------------
Distributions to shareholders (Note 2):
      From net investment income:
      Class 1.................................................               --           (4,288)
      Class 2.................................................               --           (4,922)
      Class 3.................................................               --           (5,335)
      Class 4.................................................               --      (13,067,477)
                                                                ---------------    -------------
       Total distributions from net investment income.........               --      (13,082,022)
                                                                ---------------    -------------
Net fund share transactions (Note 5):
      Class 1.................................................               --            4,288
      Class 2.................................................               --            4,922
      Class 3.................................................               --            5,335
      Class 4.................................................      (20,748,693)       4,838,727
                                                                ---------------    -------------
        Increase (Decrease) in net assets from net fund
          share transactions..................................      (20,748,693)       4,853,272
                                                                ---------------    -------------
      Total increase (decrease) in net assets.................      (14,106,918)       4,807,374
   Net assets:
      Beginning of period.....................................      259,061,481      254,254,107
                                                                ---------------    -------------
      End of period (including undistributed net investment
       income of $6,710,299 and $80,676, respectively)........  $   244,954,563    $ 259,061,481
                                                                ===============    =============
</TABLE> 

8  The accompanying notes are an integral part of the financial statements.    
 
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 
                                                                                               Class 1
                                                                                               -------
                                                                Six months ended
                                                                     6/30/97        Year ended        Year ended      Period ended
                                                                   (Unaudited)       12/31/96          12/31/95        12/31/94+**
                                                                 -------------    -------------     -------------    -------------
<S>                                                             <C>             <C>                <C>              <C> 
Net asset value, beginning of period                             $     151.03     $     151.05      $     150.39     $     150.00
                                                                 -------------    -------------     -------------    -------------
Income (loss) from investment operations:
  Net investment income                                                  3.06***          6.09***           6.90 ***         1.02
  Net realized and unrealized gain (loss) on investments                 0.02             0.03             (0.01)            0.42
                                                                 -------------    -------------     -------------    -------------
   Total income (loss) from investment operations                        3.08             6.12              6.89             1.44
                                                                 -------------    -------------     -------------    -------------
Less distributions to shareholders:
  From net investment income                                               --            (6.14)            (6.23)           (1.05)
                                                                 -------------    -------------     -------------    -------------
Net asset value, end of period                                   $     154.11     $     151.03      $     151.05     $     150.39
                                                                 =============    =============     =============    =============
Total Return                                                             2.04%            4.05%             4.58%            0.96%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                      $112             $110              $105             $101
  Net expenses to average daily net assets#                              1.66%*           1.65%             1.65%            1.65%*
  Net investment income to average daily net assets                      4.05%*           3.97%             4.48%            4.07%*
   #Computed after giving effect to the voluntary 
   partial waiver of management fee by MassMutual, 
   which terminated May 1, 1997. Without this 
   partial waiver of fees by MassMutual, the 
   ratio of expenses to average daily net assets 
   would have been:                                                      1.68%*           1.68%             1.68%            1.69%*

<CAPTION> 

                                                                                                Class 2
                                                                                                -------
                                                                Six months ended
                                                                     6/30/97        Year ended        Year ended      Period ended
                                                                   (Unaudited)       12/31/96          12/31/95        12/31/94+**
                                                                 -------------    -------------     -------------    -------------
<S>                                                             <C>              <C>               <C>              <C> 
Net asset value, beginning of period                             $     151.23     $     151.24      $     150.56     $     150.00
                                                                 -------------    -------------     -------------    -------------
Income (loss) from investment operations:
  Net investment income                                                  3.49***          6.96***           7.78 ***         1.16
  Net realized and unrealized gain (loss) on investments                 0.01             0.04             (0.02)            0.57
                                                                 -------------    -------------     -------------    -------------
   Total income (loss) from investment operations                        3.50             7.00              7.76             1.73
                                                                 -------------    -------------     -------------    -------------
Less distributions to shareholders:
  From net investment income                                               --            (7.01)            (7.08)           (1.17)
                                                                 -------------    -------------     -------------    -------------
Net asset value, end of period                                   $     154.73     $     151.23      $     151.24     $     150.56
                                                                 =============    =============     =============    =============
Total Return                                                             2.31%            4.63%             5.16%            1.15%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                      $114             $111              $106             $101
  Net expenses to average daily net assets#                              1.11%*           1.10%             1.10%            1.10%*
  Net investment income to average daily net assets                      4.60%*           4.52%             5.03%            4.62%*
   #Computed after giving effect to the voluntary 
   partial waiver of management fee by MassMutual, 
   which terminated May 1, 1997. Without this 
   partial waiver of fees by MassMutual, the ratio 
   of expenses to average daily net assets would 
   have been:                                                            1.13%*           1.13%             1.13%            1.14%*
</TABLE>      

+  All per share amounts for the period have been restated to reflect a 1-for-15
   reverse stock split effective December 16, 1994. 
*  Annualized 
** For the period from October 3, 1994 (commencement of operations) through
   December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.

   The accompanying notes are an integral part of the financial statements.    9
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Prime Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 
                                                                                              Class 3
                                                                                              -------
                                                               Six months ended
                                                                    6/30/97         Year ended       Year ended     Period ended
                                                                  (Unaudited)        12/31/96         12/31/95       12/31/94+**
                                                                -------------     -------------    -------------   -------------
<S>                                                           <C>               <C>               <C>            <C> 
Net asset value, beginning of period                            $     151.29      $     151.32     $     150.61    $     150.00
                                                                -------------     -------------    -------------   -------------
Income (loss) from investment operations:
  Net investment income                                                 3.76***           7.51***         8.33 ***         1.21
  Net realized and unrealized gain (loss) on investments                0.01              0.05           (0.01)            0.61
                                                                -------------     -------------    -------------   -------------
   Total income (loss) from investment operations                       3.77              7.56             8.32            1.82
                                                                -------------     -------------    -------------   -------------
Less distributions to shareholders:
  From net investment income                                              --            (7.59)           (7.61)          (1.21)
                                                                -------------     -------------    -------------   -------------
Net asset value, end of period                                  $     155.06      $     151.29     $     151.32    $     150.61
                                                                =============     =============    =============   =============
Total Return                                                            2.49%             5.00%            5.53%           1.21%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                     $114              $112             $106            $101
  Net expenses to average daily net assets#                             0.76%*            0.75%            0.75%           0.75%*
  Net investment income to average daily net assets                     4.95%*            4.86%            5.38%           4.99%*
  #Computed after giving effect to the voluntary 
   partial waiver of management fee by 
   MassMutual, which terminated May 1, 1997. Without 
   this partial waiver of fees by MassMutual, 
   the ratio of expenses to average daily net 
   assets would have been:                                              0.78%*            0.78%            0.78%           0.79%*
<CAPTION> 

                                                                                              Class 4
                                                                                              -------
                                                               Six months ended
                                                                    6/30/97         Year ended       Year ended     Period ended
                                                                  (Unaudited)        12/31/96         12/31/95       12/31/94+**
                                                                -------------     -------------    -------------   -------------
<S>                                                           <C>                <C>               <C>            <C> 
Net asset value, beginning of period                            $     151.00      $     151.06     $     150.36    $     150.00
                                                                -------------     -------------    -------------   -------------
Income (loss) from investment operations:
  Net investment income                                                 3.93***           7.85***         8.70 ***         1.55
  Net realized and unrealized gain (loss) on investments                0.01              0.06           (0.02)            0.34
                                                                -------------     -------------    -------------   -------------
   Total income (loss) from investment operations                       3.94              7.91             8.68            1.89
                                                                -------------     -------------    -------------   -------------
Less distributions to shareholders:
  From net investment income                                              --            (7.97)           (7.98)          (1.53)
                                                                -------------     -------------    -------------   -------------
Net asset value, end of period                                  $     154.94      $     151.00     $     151.06    $     150.36
                                                                =============     =============    =============   =============
Total Return@                                                           2.61%             5.24%            5.78%           1.26%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                 $244,615          $258,729         $253,936        $170,548
  Net expenses to average daily net assets#                           0.5274%*          0.5160%          0.5160%         0.5160%*
  Net investment income to average daily net assets                     5.18%*            5.10%            5.61%           5.01%*
  #Computed after giving effect to the voluntary
   partial waiver of management fee by MassMutual, 
   which terminated May 1, 1997. Without this partial
   waiver of fees by MassMutual, the ratio of expenses
   to average daily net assets would have been:                       0.5506%*          0.5509%          0.5468%         0.5605%*
</TABLE>      

+All per share amounts for the period have been restated to reflect a 1-for-15
 reverse stock split effective December 16, 1994. 

*Annualized 

**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.

***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.

@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.

10 The accompanying notes are an integral part of the financial statements.    
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 

                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                         <C>            <C>  
BONDS & NOTES - 83.9%
ASSET BACKED SECURITIES - 6.5%
Capital Equipment
 Receivables Trust
 1996-1, Class A4
 6.280% 6/15/2000           $1,000,000     $    999,060
Chase Manhattan Auto
 Grantor Trust 1996-B,
 Class A
 6.610% 9/15/2002            1,505,214        1,510,859
Chase Manhattan Auto
 Owner Trust 1997-A,
 Class A4
 6.400% 7/16/2001            1,500,000        1,499,835
Ford Credit 1994-B
 Grantor Trust
 7.300% 10/15/1999             249,094          251,194
Ford Credit Auto
 Owner Trust 1996-B,
 Class A-4
 6.300% 1/15/2001            2,000,000        1,996,240
Metlife Capital
 Equipment Loan Trust
 Series 1997-A, Class A
 6.850% 5/20/2008            1,000,000          995,070
Nissan Auto
 Receivables 1994-A
 Grantor Trust, Class A
 6.450% 9/15/1999              400,290          400,790
Railcar Trust No.
 1992-1
 7.750% 6/01/2004            1,142,115        1,184,225
World Omni 1996-A
 Automobile Lease
 Securitization Trust,
 Class A1
 6.300% 6/25/2002            2,426,059        2,432,124
                                           -------------

TOTAL ASSET BACKED
SECURITIES                                   11,269,397
                                           -------------
(Cost $11,284,986)

CORPORATE DEBT -- 18.5% 
AirTouch  
 Communications, Inc.
 7.500% 7/15/2006           $1,000,000     $  1,021,200
America West Airlines
 1996-1, Class A
 6.850% 7/02/2009            2,000,000        1,947,500
Analog Devices, Inc.
 6.625% 3/01/2000            1,000,000          994,310
Associates Corporation
 of North America
 6.750% 8/01/2001            1,500,000        1,501,860
Bell Atlantic Financial
 Services, Inc.
 6.610% 2/07/2000            2,000,000        2,004,640
Carlisle Companies
 Incorporated
 7.250% 1/15/2007            1,000,000          998,110
The CIT Group
 Holdings, Inc.
 6.250% 3/22/1999            2,200,000        2,204,906
CSC Enterprises 144A
 6.500% 11/15/2001           2,000,000        1,982,660
First Brands
 Corporation
 7.250% 3/01/2007            1,500,000        1,497,720
General American
 Transportation
 Corporation
 6.750% 3/01/2006            1,000,000          967,720
Lockheed Martin
 Corporation
 7.700% 6/15/2008            1,000,000        1,043,040
Lucent Technologies
 Inc.
 6.900% 7/15/2001            2,000,000        2,017,640
MAPCO Inc.
 7.250% 3/01/2009            1,250,000        1,251,150
Norfolk Southern
 Corporation
 7.350% 5/15/2007            1,000,000        1,014,840
Orchard Supply
 Hardware Stores
 Corporation
 9.375% 2/15/2002            2,000,000        2,096,380
ORIX Credit Alliance,
 Inc. 144A
 6.480% 4/20/1999            2,000,000        1,990,400
Rite Aid Corporation
 6.700% 12/15/2001           1,000,000          992,410
The US West Capital
 Funding, Inc.
 6.850% 1/15/2002            1,500,000        1,498,395
Walt Disney Company,
 The
 6.375% 3/30/2001            1,500,000        1,488,810
W.R. Grace & Co.
 8.000% 8/15/2004            3,240,000        3,391,567
                                           -------------
TOTAL CORPORATE DEBT                         31,905,258
                                           -------------
(Cost $31,717,048)

U.S. GOVERNMENT
AGENCY OBLIGATIONS -- 13.4%
Federal Home Loan Mortgage Corporation 
(FHLMC) -- 2.5%
Collateralized Mortgage Obligations -- 2.2%
FHLMC Series 1693
 Class G
 6.000% 7/15/2007            2,000,000        1,946,860
FHLMC Series 1704
 Class PE
 6.000% 7/15/2007            2,000,000        1,974,360
                                           -------------
                                              3,921,220
                                           -------------

Pass-Through Securities -- 0.3%
FHLMC
 4.750% 9/01/2006              466,658          446,093
                                           -------------
                                              4,367,313
                                           -------------

</TABLE> 

                                                                     (Continued)

   The accompanying notes are an integral part of the financial statements.

                                                                              13
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 

                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                         <C>            <C> 
Federal National Mortgage Association
(FNMA) -- 2.6%
Collateralized Mortgage Obligations -- 1.7%
FNMA Series 1993-
 175 Class PL
 5.000% 10/25/2002          $  468,248     $    466,052
FNMA Series 1993-71
 Class PG
 6.250% 7/25/2007            2,500,000        2,459,375
                                           -------------
                                              2,925,427
                                           -------------

Pass-Through Securities -- 0.9%
FNMA
 8.000% 5/01/2013              693,195          705,520
FNMA
 9.000% 10/01/2009             805,661          849,956
                                           -------------
                                              1,555,476
                                           -------------
                                              4,480,903
                                           -------------

Government National Mortgage Association 
(GNMA) -- 1.0% 
Pass-Through Securities -- 1.0% 
GNMA  8.000% 5/15/2001 -
            11/15/2007       1,611,297        1,666,886
                                           -------------

U.S. Government Guaranteed Notes -- 7.3%
1991-A Jacksonville,
 FL
 8.400% 8/01/1997            1,150,000        1,152,507
1991-A St. Louis, MO
 8.400% 8/01/1997            3,350,000        3,357,303
1994-A Baxter
 Springs, KS
 6.310% 8/01/2001              500,000          492,595
1994-A Detroit, MI
 6.310% 8/01/2001              450,000          443,336
1994-A Jacksonville,
 FL
 6.310% 8/01/2001            1,485,000        1,463,007
1994-A Los Angeles
 County, CA
 6.310% 8/01/2001              225,000          221,668
1994-A Tacoma, WA
 6.310% 8/01/2001              195,000          192,112
1994-A Trenton, NJ
 6.310% 8/01/2001              145,000          142,853
U.S. Dept. of Housing
 and Urban
 Development, Series
 1995-A
 8.080% 8/01/1998            3,000,000        3,063,750
U.S. Dept. of Housing
 and Urban
 Development, Series
 1996-A
 6.440% 8/01/1999            2,000,000        2,007,500
                                           -------------
                                             12,536,631
                                           -------------

TOTAL U.S. GOVERNMENT
AGENCY OBLIGATIONS                           23,051,733
                                           -------------
(Cost $22,661,354)

U.S. TREASURY OBLIGATIONS -- 45.5%
U.S. Treasury Notes
U.S. Treasury Note
 5.750% 8/15/2003           11,800,000       11,394,316
U.S. Treasury Note
 7.125% 2/29/2000           27,000,000       27,590,490
U.S. Treasury Note
 7.250% 5/15/2004           20,400,000       21,263,736
U.S. Treasury Note
 8.875% 2/15/1999           17,500,000       18,260,200
                                           -------------

TOTAL U.S. TREASURY
OBLIGATIONS                                  78,508,742
                                           -------------
(Cost $78,829,547)
TOTAL BONDS & NOTES                         144,735,130
                                           -------------
(Cost $144,492,935)

SHORT-TERM INVESTMENTS -- 11.9%
Commercial Paper
Boston Scientific
 Corporation
 5.870% 9/03/1997            1,185,000        1,172,634
Carter Holt Harvey
 Limited
 5.760% 7/03/1997              665,000          664,787
Carter Holt Harvey
 Limited
 5.770% 7/03/1997              500,000          499,840
Carter Holt Harvey
 Limited
 5.900% 8/19/1997            2,355,000        2,336,088
Comdisco, Inc.
 5.850% 7/30/1997            2,015,000        2,005,504
Crown Cork & Seal
 Company Inc.
 5.700% 7/01/1997              161,000          161,000
Crown Cork & Seal
 Company Inc.
 5.780% 7/01/1997              117,000          117,000
Federal Signal Corp.
 5.820% 7/21/1997            1,045,000        1,041,621
ORIX Credit Alliance,  Inc.
 5.830% 7/01/1997            1,050,000        1,050,000
ORIX Credit Alliance,  Inc.
 5.870% 7/09/1997            2,840,000        2,836,295
ORIX Credit Alliance,
 Inc.
 5.900% 7/09/1997              114,000          113,851
Pennsylvania Power &
 Light Co.
 5.750% 7/01/1997              995,000          995,000
Sonat Inc.
 5.780% 7/07/1997            1,750,000        1,748,314
Union Pacific
 Corporation
 5.840% 9/11/1997            1,150,000        1,136,568
Union Pacific
 Corporation
 5.850% 7/28/1997            3,210,000        3,195,917
Union Pacific
 Corporation
 5.850% 9/11/1997            1,390,000        1,373,737
                                           -------------

TOTAL SHORT-TERM
INVESTMENTS                                  20,448,156
                                           -------------
(At Amortized Cost)

TOTAL INVESTMENTS -- 95.8%                   165,183,286
(Cost $164,941,091)+

Other Assets/
(Liabilities) - 4.2%                          7,239,656
                                           -------------

NET ASSETS-- 100.0%                        $172,422,942
                                           -------------

</TABLE> 

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)


144A: Securities exempt from registration under rule 144A of the Securities Act
 of 1933. The Securities may be resold in transactions exempt from
 registration, normally to qualified institutional buyers.

14    The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements
- --------------------------------------------------------------------------------

Statement of Assets and Liabilities

<TABLE>
<CAPTION> 
                                                                            June 30, 1997
                                                                             (Unaudited)
                                                                           ---------------
<S>                                                                       <C> 
Assets:
      Investments, at value (cost $144,492,935) (Note 2)...............   $   144,735,130
      Short-term investments, at amortized cost (Note 2)...............        20,448,156
                                                                          ---------------
        Total Investments..............................................       165,183,286
      Cash.............................................................               426
      Receivables from:
        Fund shares sold...............................................         4,621,175
        Interest.......................................................         2,860,601
                                                                          ---------------
           Total assets................................................       172,665,488
                                                                          ---------------

Liabilities:
      Payables for:
        Fund shares redeemed...........................................           159,130
        Directors' fees and expenses (Note 3)..........................             5,318
        Affiliates (Note 3):
          Investment management fees...................................            60,940
          Administration fees..........................................            10,705
          Service and distribution fees................................               233
      Accrued expenses and other liabilities...........................             6,220
                                                                          ---------------
          Total liabilities............................................           242,546
                                                                          ---------------
      Net assets.......................................................   $   172,422,942
                                                                          ===============

Net assets consist of:
      Paid-in capital..................................................   $   167,618,985
      Undistributed net investment income..............................         4,939,839
      Accumulated net realized loss on investments.....................          (378,077)
      Net unrealized appreciation on investments.......................           242,195
                                                                          ---------------
                                                                          $   172,422,942
                                                                          ===============

Net assets:
      Class 1..........................................................   $       118,259
                                                                          ===============
      Class 2..........................................................   $       120,003
                                                                          ===============
      Class 3..........................................................   $       120,979
                                                                          ===============
      Class 4..........................................................   $   172,063,701
                                                                          ===============

Shares outstanding:

      Class 1..........................................................            11,415
                                                                          ===============
      Class 2..........................................................            11,544
                                                                          ===============
      Class 3..........................................................            11,599
                                                                          ===============
      Class 4..........................................................        16,587,139
                                                                          ===============

Net asset value, offering price and
redemption price per share:

      Class 1..........................................................   $         10.36
                                                                          ===============
      Class 2..........................................................   $         10.40
                                                                          ===============
      Class 3..........................................................   $         10.43
                                                                          ===============
      Class 4..........................................................   $         10.37
                                                                          ===============

</TABLE> 

    The accompanying notes are an integral part of the financial statements.  15
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statement of Operations

<TABLE> 
<CAPTION> 
                                                                            Six months ended
                                                                              June 30, 1997
                                                                               (Unaudited)
                                                                           ------------------
<S>                                                                        <C> 
Investment income:
     Interest.........................................................     $        5,330,859
                                                                           ------------------

Expenses (Note 1):
     Investment management fees (Note 3)..............................                346,373
     Custody fees.....................................................                  7,799
     Audit and legal fees.............................................                  2,032
     Directors' fees (Note 3).........................................                 10,526
     Fees waived by the investment manager (Note 3)...................                (18,246)
                                                                           ------------------
                                                                                      348,484 
     Administration fees (Note 3):
       Class 1........................................................                    322
       Class 2........................................................                    297
       Class 3........................................................                    182
       Class 4........................................................                 60,055
     Distribution and service fees (Note 3):
       Class 1........................................................                    375
       Class 2........................................................                     88
                                                                           ------------------
         Net expenses.................................................                409,803
                                                                           ------------------
         Net investment income........................................              4,921,056
Realized and unrealized gain (loss):
     Net realized loss on investment transactions.....................                (82,877)
     Net change in unrealized appreciation (depreciation)
       on investments.................................................               (775,534)
                                                                           ------------------
         Net realized and unrealized loss.............................               (858,411)
                                                                           ------------------
     Net increase in net assets resulting from operations.............     $        4,062,645
                                                                           ==================

</TABLE> 

16   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statements of Changes in Net Assets

<TABLE> 
<CAPTION> 

                                                                        Six months ended
                                                                          June 30, 1997         Year ended
                                                                           (Unaudited)       December 31, 1996
                                                                       ------------------    -----------------
<S>                                                                    <C>                   <C> 
Increase (Decrease) in Net Assets:
Operations:
      Net investment income..........................................  $        4,921,056    $       8,081,821
      Net realized loss on investment transactions...................             (82,877)            (274,845)
      Net change in unrealized appreciation (depreciation)
       on investments................................................            (775,534)            (384,702)
                                                                       ------------------    -----------------
       Net increase in net assets resulting from operations..........           4,062,645            7,422,274
                                                                       ------------------    -----------------
Distributions to shareholders (Note 2):
      From net investment income:
      Class 1........................................................                  --               (5,225)
      Class 2........................................................                  --               (5,891)
      Class 3........................................................                  --               (6,321)
      Class 4........................................................                  --           (8,133,246)
                                                                       ------------------    -----------------
       Total distributions from net investment income................                  --           (8,150,683)
                                                                       ------------------    -----------------
      In excess of net investment income:
      Class 1........................................................                  --                   (1)
      Class 2........................................................                  --                   (1)
      Class 3........................................................                  --                   (1)
      Class 4........................................................                  --               (1,569)
                                                                       ------------------    -----------------
       Total distributions in excess of net investment income........                  --               (1,572)
                                                                       ------------------    -----------------
      From net realized gains:
      Class 1........................................................                  --                  (59)
      Class 2........................................................                  --                  (59)
      Class 3........................................................                  --                  (59)
      Class 4........................................................                  --              (71,288)
                                                                       ------------------    -----------------
       Total distributions from net realized gains...................                  --              (71,465)
                                                                       ------------------    -----------------
Net fund share transactions (Note 5):
      Class 1........................................................                  --                5,285
      Class 2........................................................                  --                5,951
      Class 3........................................................                  --                6,381
      Class 4........................................................          22,826,888           23,078,364
                                                                       ------------------    -----------------
       Increase in net assets from net fund share transactions.......          22,826,888           23,095,981
                                                                       ------------------    -----------------
      Total increase in net assets...................................          26,889,533           22,294,535
Net assets:
      Beginning of period............................................         145,533,409          123,238,874
                                                                       ------------------    -----------------
      End of period (including undistributed net investment
       income of $4,939,839 and $18,783, respectively................  $      172,422,942    $     145,533,409
                                                                       ------------------    -----------------

</TABLE> 

   The accompanying notes are an integral part of the financial statements.   17

<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 

                                                                                                 Class 1
                                                                                                 -------
                                                                    Six months ended
                                                                        6/30/97        Year ended       Year ended     Period ended
                                                                      (Unaudited)       12/31/96         12/31/95       12/31/94**
                                                                      -----------      ----------       ----------      ----------
<S>                                                                   <C>              <C>              <C>             <C> 
Net asset value, beginning of period                                  $   10.15        $   10.19        $    9.89       $   10.00
                                                                      -----------      -----------      -----------     -----------
Income (loss) from investment operations:
  Net investment income                                                    0.27***          0.50             0.55            0.09
  Net realized and unrealized gain (loss) on investments                  (0.06)           (0.05)            0.49           (0.11)
                                                                      -----------      -----------      -----------     -----------
   Total income (loss) from investment operations                           0.21             0.45             1.04          (0.02)
                                                                      -----------      -----------      -----------     -----------
Less distributions to shareholders:
  From net investment income                                                  --            (0.48)           (0.54)         (0.09)
  From net realized gains                                                     --            (0.01)           (0.20)            --
                                                                      -----------      -----------      -----------     -----------
   Total distributions                                                        --            (0.49)           (0.74)         (0.09)
                                                                      -----------      -----------      -----------     -----------
Net asset value, end of period                                        $    10.36       $    10.15       $    10.19      $    9.89
                                                                      ===========      ===========      ===========     ===========
Total Return                                                                2.07%            4.35%           10.54%         (0.17)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                         $118             $116             $111           $100
  Net expenses to average daily net assets#                                 1.66%*           1.65%            1.65%          1.65%*
  Net investment income to average daily net assets                         5.26%*           4.86%            5.20%          5.45%*
  Portfolio turnover rate                                                      9%              61%             114%            15%
   #Computed after giving effect to the voluntary partial
    waiver of management fee by MassMutual, which terminated
    May 1, 1997. Without this partial waiver of
    fees by MassMutual, the ratio of expenses
    to average daily net assets would have been:                             1.68%*           1.68%            1.68%          1.70%*

</TABLE>      

<TABLE>     
<CAPTION> 

                                                                                                 Class 2
                                                                                                --------
                                                                   Six months ended
                                                                        6/30/97        Year ended       Year ended     Period ended
                                                                      (Unaudited)       12/31/96         12/31/95       12/31/94**
                                                                      -----------      ----------       ----------      ----------
<S>                                                                   <C>              <C>              <C>             <C> 
Net asset value, beginning of period                                  $    10.16       $   10.19        $    9.89       $   10.00
                                                                      -----------      -----------      -----------     -----------
Income (loss) from investment operations:
  Net investment income                                                     0.29***         0.56             0.61            0.10
  Net realized and unrealized gain (loss) on investments                   (0.05)          (0.04)            0.49           (0.11)
                                                                      -----------      -----------      -----------     -----------
   Total income (loss) from investment operations                           0.24            0.52             1.10           (0.01)
                                                                      -----------      -----------      -----------     -----------
Less distributions to shareholders:
  From net investment income                                                  --           (0.54)           (0.60)          (0.10)
  From net realized gains                                                     --           (0.01)           (0.20)             --
                                                                      -----------      -----------      -----------     -----------
   Total distributions                                                        --           (0.55)           (0.80)          (0.10)
                                                                      -----------      -----------      -----------     -----------
Net asset value, end of period                                        $    10.40       $   10.16        $   10.19       $    9.89
                                                                      ===========      ===========      ===========     ===========
Total Return                                                                2.36%           5.02%           11.11%          (0.09)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                         $120            $117             $112            $101
  Net expenses to average daily net assets#                                 1.11%*          1.10%            1.10%           1.10%*
  Net investment income to average daily net assets                         5.81%*          5.41%            5.75%           5.99%*
  Portfolio turnover rate                                                      9%             61%             114%             15%
   #Computed after giving effect to the voluntary partial
    waiver of management fee by MassMutual, which terminated
    May 1, 1997. Without this partial waiver of
    fees by MassMutual, the ratio of expenses                                                                                      
    to average daily net assets would have been:                            1.13%*          1.13%            1.13%           1.15%* 

</TABLE>      

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.

18      The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Short-Term Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>    
<CAPTION> 

                                                                                                 Class 3
                                                                                                 -------
                                                                   Six months ended
                                                                       6/30/97        Year ended       Year ended      Period ended
                                                                     (Unaudited)       12/31/96         12/31/95        12/31/94**
                                                                     -----------      ----------       ----------       ----------
<S>                                                                  <C>              <C>              <C>              <C> 
Net asset value, beginning of period                                 $    10.17       $   10.21        $    9.91        $   10.00
                                                                      ----------       ----------       ----------      ---------- 
Income (loss) from investment operations:                                                                                          
  Net investment income                                                    0.31***         0.60             0.64             0.10  
  Net realized and unrealized gain (loss) on investments                  (0.05)          (0.05)            0.49            (0.09) 
                                                                      ----------       ----------       ----------      ---------- 
   Total income (loss) from investment operations                          0.26            0.55             1.13             0.01  
                                                                      ----------       ----------       ----------      ---------- 
Less distributions to shareholders:                                                                                                
  From net investment income                                                 --           (0.58)           (0.63)           (0.10) 
  From net realized gains                                                    --           (0.01)           (0.20)              --  
                                                                      ----------       ----------       ----------      ---------- 
   Total distributions                                                       --           (0.59)           (0.83)           (0.10) 
                                                                      ----------       ----------       ----------      ---------- 
Net asset value, end of period                                        $   10.43        $  10.17         $  10.21        $    9.91  
                                                                      ==========       ==========       ==========      ========== 
Total Return                                                               2.56%           5.28%           11.46%            0.13%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                        $121            $118             $112             $100
  Net expenses to average daily net assets#                                0.76%*          0.75%            0.75%            0.75%*
  Net investment income to average daily net assets                        6.16%*          5.76%            6.10%            6.36%*
  Portfolio turnover rate                                                     9%             61%             114%              15%
   #Computed after giving effect to the voluntary partial waiver  
   of management fee by MassMutual, which terminated May 1, 1997. 
   Without this partial waiver of fees by MassMutual, the ratio 
   of expenses to average daily net assets would have been:                0.79%*          0.79%            0.78%            0.80%*

</TABLE> 

<TABLE> 
<CAPTION> 

                                                                                                Class 4
                                                                                                -------
                                                                   Six months ended
                                                                       6/30/97        Year ended       Year ended      Period ended
                                                                     (Unaudited)       12/31/96         12/31/95        12/31/94**
                                                                     -----------      ----------       ----------       ----------
<S>                                                                  <C>              <C>              <C>              <C> 
Net asset value, beginning of period                                 $    10.11       $   10.15        $    9.85        $   10.00
                                                                      ----------       ----------       ----------      ---------- 
Income (loss) from investment operations:
  Net investment income                                                    0.32***         0.60             0.66             0.16
  Net realized and unrealized gain (loss) on investments                  (0.06)          (0.03)            0.50            (0.15)
                                                                      ----------       ----------       ----------      ---------- 
   Total income (loss) from investment operations                          0.26            0.57             1.16             0.01
                                                                      ----------       ----------       ----------      ---------- 
Less distributions to shareholders:
  From net investment income                                                 --           (0.60)           (0.66)           (0.16)
  From net realized gains                                                    --           (0.01)           (0.20)              --
                                                                      ----------       ----------       ----------      ---------- 
   Total distributions                                                       --           (0.61)           (0.86)           (0.16)
                                                                      ----------       ----------       ----------      ---------- 
Net asset value, end of period                                       $    10.37       $   10.11        $   10.15        $    9.85
                                                                      ==========       ==========       ==========      ========== 
Total Return@                                                              2.57%           5.57%           11.77%            0.13%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                  $  172,064       $ 145,182        $ 122,904        $ 106,846
  Net expenses to average daily net assets#                              0.5309%*        0.5190%          0.5190%          0.5190%*
  Net investment income to average daily net assets                        6.39%*          6.00%            6.32%            6.37%*
  Portfolio turnover rate                                                     9%             61%             114%              15%
   #Computed after giving effect to the voluntary partial waiver 
   of management fee by MassMutual, which terminated May 1, 1997. 
   Without this partial waiver of fees by MassMutual, the ratio 
   of expenses to average daily net assets would have been:              0.5546%*        0.5545%          0.5524%          0.5654%*

</TABLE>     

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.
@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth  in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.

The accompanying notes are an integral part of the financial statements.      19
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                                       <C> 
BONDS & NOTES - 95.2%
ASSET BACKED SECURITIES -- 5.9%
Capita Equipment
 Receivables Trust
 1996-1, Class A4
 6.280% 6/15/2000           $3,000,000     $  2,997,180
Chase Manhattan Auto
 Grantor Trust 1996-B,
 Class A
 6.610% 9/15/2002            3,763,036        3,777,147
Daimler-Benz Auto
 Grantor Trust 1995-A,
 Class A
 5.850% 5/15/2002            1,802,634        1,800,381
Ford Credit 1994-B
 Grantor Trust
 7.300% 10/15/1999             373,641          376,791
Ford Credit Auto
 Owner Trust 1996-B
 Class A-4
 6.300% 1/15/2001            5,000,000        4,990,600
Keystone Auto
 Grantor Trust 1996-B,
 Class A 144A
 6.150% 4/15/2003            2,220,084        2,216,776
Metlife Capital
 Equipment Loan Trust
 Series 1997-A, Class A
 6.850% 5/20/2008            1,500,000        1,492,605
Nissan Auto
 Receivables 1994-A
 Grantor Trust, Class A
 6.450% 9/15/1999              800,586          801,587
Railcar Trust No.
 1992-1
 7.750% 6/01/2004            1,332,468        1,381,596
World Omni 1995-A
 Automobile Lease
 Securitization Trust,
 Class A
 6.050% 11/25/2001           2,258,513        2,259,913
World Omni 1996-A
 Automobile Lease
 Securitization Trust,
 Class A1
 6.300% 6/25/2002           $2,571,622     $  2,578,051
                                          --------------

TOTAL ASSET BACKED
SECURITIES                                   24,672,627
                                          --------------
(Cost $24,704,112)

CORPORATE DEBT -- 42.1% 
Airgas, Inc.
 7.140% 3/08/2004            4,000,000        4,012,744
AirTouch
 Communications, Inc.
 7.500% 7/15/2006            3,000,000        3,063,600
America West Airlines
 1996-1, Class A
 6.850% 7/02/2009            4,000,000        3,895,000
American Airlines
 1994-A Pass-Through
 Trusts, Class A4 ++
 9.780% 11/26/2011           2,000,000        2,275,000
AMR Corporation ++
 9.000% 8/01/2012            2,000,000        2,240,280
Analog Devices, Inc. ++
 6.625% 3/01/2000            1,500,000        1,491,465
Associates Corporation
 of North America
 6.750% 8/01/2001            2,000,000        2,002,480
Associates Corporation
 of North America ++
 7.875% 9/30/2001            1,500,000        1,563,300
Barrick Gold
 Corporation
 7.500% 5/01/2007            4,000,000        4,092,280
Bell Atlantic Financial
 Services, Inc.
 6.610% 2/04/2000            1,750,000        1,754,130
BHP Finance (USA)
 Limited
 6.420% 3/01/2026            3,500,000        3,429,580
Capital Cities/ABC,
 Inc.
 8.875% 12/15/2000             875,000          931,184
Carlisle Companies
 Incorporated
 7.250% 1/15/2007           $2,500,000       $2,495,275
Champion International
 Corporation
 6.400% 2/15/2026            2,500,000        2,379,350
The Charles Schwab
 Corporation
 6.250% 1/23/2003            2,500,000        2,406,250
Chrysler Corporation
 10.400% 8/01/1999           1,500,000        1,504,935
CITGO Petroleum
 Corporation
 7.875% 5/15/2006            1,000,000        1,033,200
The Columbia Gas
 System, Inc.
 6.610% 11/28/2002           3,000,000        2,966,100
Comcast Cable
 Communications, Inc.
 144A
 8.375% 5/01/2007            2,500,000        2,644,675
Commercial Credit
 Company ++
 7.750% 3/01/2005            3,000,000        3,117,120
Continental Airlines,
 Inc., Series 1996-2B
 8.560% 1/02/2016            1,701,186        1,835,155
Continental Airlines,
 Inc., Series 1996-B
 7.820% 4/15/2015            1,960,784        2,022,000
Corning Glass Works ++
 8.875% 3/15/2016            1,000,000        1,113,940
Crown Cork & Seal
 Company Inc.
 6.750% 12/15/2003           3,550,000        3,498,419
CSX Corporation 144A
 7.250% 5/01/2027            4,000,000        4,081,040
English China Clays
 Delaware Inc. ++
 7.375% 10/01/2002           1,000,000        1,017,100
Equifax Inc.
 6.500% 6/15/2003            1,000,000          976,130
</TABLE> 

                                                                     (Continued)

22 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                        <C>            <C> 
ERAC USA Finance
 Company 144A
 6.950% 1/15/2006           $1,500,000     $  1,467,345
FBG Finance Limited
 144A
 7.875% 6/01/2016            3,000,000        3,012,090
First Brands
 Corporation
 7.250% 3/01/2007            2,000,000        1,996,960
Fletcher Challenge Ltd.
 7.750% 6/20/2006            2,000,000        2,058,840
Foodbrands America,
 Inc.
 10.750% 5/15/2006           3,000,000        3,516,960
Foster Wheeler
 Corporation
 6.750% 11/15/2005           2,000,000        1,937,060
General American
 Transportation
 Corporation
 6.750% 3/01/2006            3,000,000        2,903,160
General Electric
 Capital Corporation
 8.750% 5/21/2007            1,500,000        1,689,060
General Mills, Inc.
 8.900% 6/15/2006            2,250,000        2,506,613
General Motors
 Acceptance
 Corporation
 8.625% 6/15/1999            4,175,000        4,343,127
General Telephone
 Company of Florida
 7.500% 8/01/2002            1,000,000        1,014,420
The Goldman Sachs
 Group, L.P. 144A
 6.200% 2/15/2001            2,500,000        2,460,100
Harrahs Operating Inc.
 8.750% 3/15/2000            1,100,000        1,122,000
Hercules Incorporated ++
 6.625% 6/01/2003            1,000,000          985,850
Hilton Hotels
 Corporation
 7.375% 6/01/2002            1,750,000        1,762,548
IMCERA Group Inc. ++
 6.000% 10/15/2003           1,000,000          953,810
Leucadia National
 Corporation
 7.750% 8/15/2013            2,500,000        2,436,950
Lockheed Martin
 Corporation
 7.700% 6/15/2008            3,000,000        3,129,120
MAPCO Inc.
 7.250% 3/01/2009            3,250,000        3,252,990
McDonnell Douglas
 Corporation ++
 9.250% 4/01/2002            1,500,000        1,649,310
MFS Communications
 Company, Inc.
 (Step Up)
 0.000% 1/15/2004            1,750,000        1,628,900
Millipore Corporation
 7.500% 4/01/2007            3,750,000        3,799,350
Mobil Corporation
 8.625% 8/15/2021            4,000,000        4,605,360
Newmont Mining
 Corporation ++
 8.625% 4/01/2002            2,000,000        2,130,760
News America
 Holdings Incorporated
 9.250% 2/01/2013            3,000,000        3,344,910
Norfolk Southern
 Corporation
 7.050% 5/01/2037            5,000,000        5,074,700
North Finance
 (Bermuda) Limited
 144A
 7.000% 9/15/2005            2,000,000        1,970,000
Orchard Supply
 Hardware Stores
 Corporation
 9.375% 2/15/2002            3,871,000        4,057,543
Penske Truck Leasing
 Co., L.P.
 7.750% 5/15/1999            1,500,000        1,537,080
Petroleum Geo-
 Services ASA
 7.500% 3/31/2007              750,000          755,693
Ralston Purina
 Company
 7.750% 10/01/2015           2,000,000        2,027,600
Rite Aid Corporation
 6.700% 12/15/2001           2,000,000        1,984,820
Rolls-Royce Capital
 Inc.
 7.125% 7/29/2003            2,000,000        2,008,060
Scholastic Corporation
 7.000% 12/15/2003           4,000,000        3,968,840
Texaco Inc.
 8.500% 2/15/2003            2,500,000        2,696,700
Thomas & Betts
 Corporation ++
 8.250% 1/15/2004            2,500,000        2,640,825
Time Warner Inc.
 7.750% 6/15/2005            3,000,000        3,048,750
Time Warner Inc.
 Pass-Thru Asset
 Trust 1997-1 144A
 6.100% 12/30/2001           4,000,000        3,831,520
United Air Lines, Inc.
 10.110% 2/19/2006             924,283        1,026,056
US Air, Inc., Class B
 7.500% 10/15/2009           1,443,239        1,452,259
The US West Capital
 Funding, Inc.
 6.850% 1/15/2002            3,750,000        3,745,988
Valassis
 Communications, Inc.
 9.550% 12/01/2003           2,000,000        2,130,340
Westinghouse Electric
 Corporation
 8.375% 6/15/2002            1,000,000        1,032,480
WorldCom, Inc.
 7.750% 4/01/2007            2,000,000        2,045,360
W.R. Grace & Co.
 8.000% 8/15/2004            5,000,000        5,233,900
                                          --------------

TOTAL CORPORATE DEBT                        175,817,839
                                          --------------
(Cost $172,717,962)

NON - U.S. GOVERNMENT
AGENCY OBLIGATIONS -- 1.0%
Collateralized Mortgage Obligations
Prudential Home
 Mortgage Securities
 1993-26 Class A6
 6.750% 7/25/2008            4,000,000        3,975,000
                                          --------------
(Cost  $3,955,000)

U.S. GOVERNMENT
AGENCY OBLIGATIONS -- 19.2%
Federal Home Loan Mortgage Corporation 
(FHLMC) -- 3.8%
Collateralized Mortgage Obligations -- 3.7%
FHLMC Series 1080
 Class D
 7.000% 7/15/2020            2,352,997        2,376,527
FHLMC Series 1322
 Class G
 7.500% 2/15/2007            2,000,000        2,040,620
FHLMC Series 1460
 Class H
 7.000% 5/15/2007            2,000,000        2,007,500
FHLMC Series 1490
 Class PJ
 6.000% 5/15/2007              600,000          585,936
FHLMC Series 1612
 Class PD
 5.750% 5/15/2006            4,976,042        4,901,401
FHLMC Series 1625
 Class EA
 5.750% 3/15/2007            3,500,000        3,444,210
                                          --------------
                                             15,356,194
                                          --------------

Pass-Through Securities -- 0.1%
FHLMC
 9.000% 3/01/2017              339,937          361,727
                                          --------------
                                             15,717,921
                                          --------------
</TABLE> 

                                                                    (Continued)

   The accompanying notes are an integral part of the financial statements.   23
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------
<S>                         <C>            <C> 
Federal National Mortgage Association
(FNMA) -- 4.5%
Collateralized Mortgage Obligations -- 4.4%
FNMA Series 1989-20
 Class A
 6.750% 4/25/2018           $4,203,676     $  4,019,765
FNMA Series 1993-
 134 Class GA
 6.500% 2/25/2007            5,000,000        4,954,650
FNMA Series 1993-
 175 Class PL
 5.000% 10/25/2002             468,248          466,052
FNMA Series 1993-
 191 Class PD
 5.400% 3/25/2004            1,500,000        1,488,750
FNMA Series 1993-
 221 Class D
 6.000% 12/25/2008           2,487,500        2,378,672
FNMA Series 1996-54
 Class C
 6.000% 9/25/2008            5,000,000        4,793,750
                                          --------------
                                             18,101,639
                                          --------------

Pass-Through Securities -- 0.1%
FNMA
 8.000% 5/01/2013              462,130          470,346
                                          --------------
                                             18,571,985
                                          --------------

Government National Mortgage Association 
(GNMA) -- 9.5%
Collateralized Mortgage Obligations -- 0.4%
JHM Acceptance
 Corporation Series E
 Class 5
 8.960% 4/01/2019            1,603,881        1,676,553
                                          --------------

Pass-Through Securities -- 9.1%
GNMA
 6.000% 1/20/2027 -
        5/20/2027           11,973,792       12,046,389
GNMA
 6.875% 12/20/2025           5,112,361        5,237,000
GNMA
 7.000% 7/20/2025 -
        9/20/2025            4,942,952        5,077,456
GNMA
 7.500% 1/15/2017 -
        6/15/2017            6,828,298        6,922,118
GNMA
 8.000% 4/15/2001 -
        3/15/2008            7,917,527        8,190,677
GNMA
 9.000% 12/15/2004 -
        10/15/2009             465,099          496,400
                                          --------------
                                             37,970,040
                                          --------------
                                             39,646,593
                                          --------------

U.S. Government Guaranteed Notes -- 1.4%
1994-A Baxter
 Springs, KS
 5.930% 8/01/1999              700,000          695,625
1994-A Erie, PA
 5.930% 8/01/1999            1,590,000        1,580,063
1994-A Los Angeles
 County, CA
 5.930% 8/01/1999              190,000          188,813
1994-A Montgomery
 County, PA
 5.930% 8/01/1999              150,000          149,063
1994-A Pohatcong
 Township, NJ
 5.930% 8/01/1999              255,000          253,406
1994-A Rochester, NY
 5.930% 8/01/1999              135,000          134,156
1994-A Sacramento, CA
 5.930% 8/01/1999               60,000           59,625
1994-A Santa Ana, CA
 5.930% 8/01/1999              920,000          914,250
U.S. Dept. of Housing
 and Urban
 Development, Series
 1996-A
 6.670% 8/01/2001            2,000,000        2,010,000
                                          --------------

TOTAL U.S. Government
Guaranteed Notes                              5,985,001
                                          --------------


TOTAL U.S. GOVERNMENT
AGENCY OBLIGATIONS                           79,921,500
                                          --------------
(Cost $78,353,097)

U.S. TREASURY OBLIGATIONS -- 27.0%
U.S. Treasury Bonds -- 14.7%
U.S. Treasury Bond
 7.250% 5/15/2016           27,550,000       28,729,416
U.S. Treasury Bond
 8.875% 8/15/2017           26,750,000       32,580,698
                                          --------------
                                             61,310,114
                                          --------------

U.S. Treasury Notes -- 7.9%
U.S. Treasury Note
 6.375% 5/15/1999           14,500,000       14,572,500
U.S. Treasury Note
 7.250% 8/15/2004           17,500,000       18,243,750
                                          --------------
                                             32,816,250
                                          --------------

U.S. Treasury Strips -- 4.4%
U.S. Treasury Strip -- Principal Only
 0.000% 2/15/1999           19,500,000       17,710,485
U.S. Treasury Strip -- Principal Only
 0.000% 2/15/2015            2,750,000          816,530
                                          --------------
                                             18,527,015
                                          --------------

TOTAL U.S. TREASURY
OBLIGATIONS                                 112,653,379
                                          --------------
(Cost $113,665,970)

TOTAL BONDS & NOTES                         397,040,345
                                          --------------
(Cost $393,396,141)

SHORT-TERM INVESTMENTS -- 1.7%
Commercial Paper
ConAgra, Inc.
 5.800% 7/02/1997              337,000          336,946
Maytag Corporation
 6.450% 7/01/1997            2,690,000        2,690,000
Service Corporation
 International
 5.900% 7/03/1997            4,000,000        3,998,689
                                          --------------

TOTAL SHORT-TERM
INVESTMENTS                                   7,025,635
                                          --------------
(At Amortized Cost)

TOTAL INVESTMENTS -- 96.9%                  404,065,980
(Cost $400,421,776)+

Other Assets/
(Liabilities) - 3.1%                         12,996,873
                                          --------------

NET ASSETS -- 100.0%                       $417,062,853
                                          ==============
</TABLE> 

Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)

144A: Securities exempt from registration under rule 144A of the Securities Act
  of 1933. The Securities may be resold in transactions exempt from
  registration, normally to qualified institutional buyers.

++All or a portion of this security is segregated to cover forward purchase
  commitments (Note 2).

24   The accompanying notes are an integral part of the financial statements.   
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                                          June 30, 1997
                                                                           (Unaudited)
                                                                      -----------------
<S>                                                                  <C> 
Statement of Assets and Liabilities

Assets:
      Investments, at value (cost $393,396,141) (Note 2)..........    $     397,040,345
      Short-term investments, at amortized cost (Note 2)..........            7,025,635
                                                                      -----------------
        Total Investments.........................................          404,065,980
      Cash........................................................                1,302
      Receivables from:
        Investments sold..........................................            1,009,917
        Fund shares sold..........................................            6,398,717
        Interest..................................................            6,039,483
                                                                      -----------------
           Total assets...........................................          417,515,399
                                                                      -----------------

Liabilities:
      Payables for:
        Investments purchased.....................................              135,859
        Settlement of investments purchased on a
           forward commitment basis (Note 2)......................               23,599
        Fund shares redeemed......................................               92,829
        Directors' fees and expenses (Note 3).....................                5,317
        Affiliates (Note 3):
           Investment management fees.............................              151,927
           Administration fees....................................               28,550
           Service and distribution fees..........................                  243
      Accrued expenses and other liabilities......................               14,222
                                                                      -----------------
           Total liabilities......................................              452,546
                                                                      -----------------
      Net assets..................................................    $     417,062,853
                                                                      =================
Net assets consist of:
      Paid-in capital.............................................    $     401,263,451
      Undistributed net investment income.........................           14,267,081
      Accumulated net realized loss on investments................           (2,088,284)
      Net unrealized appreciation on investments
           and forward commitments................................            3,620,605
                                                                      -----------------
                                                                      $     417,062,853
                                                                      =================
Net assets:
      Class 1.....................................................    $         123,665
                                                                      =================
      Class 2.....................................................    $         125,495
                                                                      =================
      Class 3.....................................................    $         126,549
                                                                      =================
      Class 4.....................................................    $     416,687,144
                                                                      =================
Shares outstanding:
      Class 1.....................................................               11,512
                                                                      =================
      Class 2.....................................................               11,631
                                                                      =================
      Class 3.....................................................               11,699
                                                                      =================
      Class 4.....................................................           38,753,822
                                                                      =================
Net asset value, offering price and
redemption price per share:
      Class 1.....................................................    $           10.74
                                                                      =================
      Class 2.....................................................    $           10.79
                                                                      =================
      Class 3.....................................................    $           10.82
                                                                      =================
      Class 4.....................................................    $           10.75
                                                                      =================
</TABLE> 

   The accompanying notes are an integral part of the financial statements.   25
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                                     Six months ended
                                                                       June 30, 1997
                                                                        (Unaudited)
                                                                     ----------------- 
<S>                                                               <C> 
Statement of Operations

Investment income:
      Interest.....................................................  $      13,415,692
                                                                     -----------------
Expenses (Note 1):
      Investment management fees (Note 3)..........................            848,056
      Custody fees.................................................             20,260
      Audit and legal fees.........................................              5,012
      Directors' fees (Note 3).....................................             10,526
      Fees waived by the investment manager (Note 3)...............            (49,361)
                                                                     -----------------
                                                                               834,493
      Administration fees (Note 3):
        Class 1....................................................                342
        Class 2....................................................                316
        Class 3....................................................                197
        Class 4....................................................            158,527
      Distribution and service fees (Note 3):
        Class 1....................................................                391
        Class 2....................................................                 91
                                                                     -----------------
          Net expenses.............................................            994,357
                                                                     -----------------
          Net investment income....................................         12,421,335
                                                                     -----------------
Realized and unrealized gain (loss):
      Net realized loss on investment transactions and forward
        commitments................................................           (202,403)
      Net change in unrealized appreciation (depreciation) on
        investments and forward commitments........................         (1,087,718)
                                                                     -----------------
          Net realized and unrealized loss.........................         (1,290,121)
                                                                     -----------------
      Net increase in net assets resulting from operations.........  $      11,131,214
                                                                     ================= 
</TABLE> 

26   The accompanying notes are an integral part of the financial statements.   
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                                                                       Six months ended
                                                                         June 30, 1997        Year ended
                                                                          (Unaudited)      December 31, 1996
                                                                        ---------------    -----------------
<S>                                                                  <C>                 <C> 
Statements of Changes in Net Assets                               
                                                                  
Increase (Decrease) in Net Assets:                                
Operations:                                                       
      Net investment income...........................................  $    12,421,335     $     19,120,753
      Net realized loss on investment transactions
       and forward commitments........................................         (202,403)          (1,886,093)
      Net change in unrealized appreciation (depreciation) on
       investments and forward commitments............................       (1,087,718)          (6,456,882)
                                                                        ---------------     ----------------
       Net increase in net assets resulting from operations...........       11,131,214           10,777,778
                                                                        ---------------     ----------------
Distributions to shareholders (Note 2):
      From net investment income:
      Class 1.........................................................               --               (4,416)
      Class 2.........................................................               --               (5,227)
      Class 3.........................................................               --               (5,674)
      Class 4.........................................................               --          (17,374,307)
                                                                        ---------------     ----------------
       Total distributions from net investment income.................               --          (17,389,624)
                                                                        ---------------     ----------------
      From net realized gains:
      Class 1.........................................................               --                 (740)
      Class 2.........................................................               --                 (714)
      Class 3.........................................................               --                 (715)
      Class 4.........................................................               --           (1,942,817)
                                                                        ---------------     ----------------
       Total distributions from net realized gains....................               --           (1,944,986)
                                                                        ---------------     ----------------
Net fund share transactions (Note 5):
      Class 1.........................................................               --              (45,858)
      Class 2.........................................................               --                5,941
      Class 3.........................................................               --                6,389
      Class 4.........................................................       48,866,462          111,704,711
                                                                        ---------------     ----------------
       Increase in net assets from net fund share transactions........       48,866,462          111,671,183
                                                                        ---------------     ----------------
      Total increase in net assets....................................       59,997,676          103,114,351
Net assets:
      Beginning of period.............................................      357,065,177          253,950,826
                                                                        ---------------     ----------------
      End of period (including undistributed net investment income
       of $14,267,081 and $1,845,746 respectively)....................  $   417,062,853     $    357,065,177
                                                                        ===============     ================
</TABLE> 
 
   The accompanying notes are an integral part of the financial statements.   27
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>    
<CAPTION> 
                                                                                                 Class 1
                                                                                                 -------
                                                                    Six months ended
                                                                        6/30/97       Year ended       Year ended     Period ended
                                                                      (Unaudited)      12/31/96         12/31/95       12/31/94**
                                                                     -------------   -------------    -------------   -------------
<S>                                                               <C>              <C>              <C>             <C> 
Net asset value, beginning of period                                 $      10.50    $      10.79     $       9.90    $      10.00
                                                                     -------------   -------------    -------------   -------------
Income (loss) from investment operations:
  Net investment income                                                      0.28***         0.53***          0.50            0.10
  Net realized and unrealized gain (loss) on investments                    (0.04)          (0.36)            1.26           (0.10)
                                                                     -------------   -------------    -------------   -------------
   Total income (loss) from investment operations                            0.24            0.17             1.76              --
                                                                     -------------   -------------    -------------   -------------
Less distributions to shareholders:
  From net investment income                                                   --           (0.40)           (0.54)          (0.10)
  From net realized gains                                                      --           (0.06)           (0.33)             --
                                                                     -------------   -------------    -------------   -------------
   Total distributions                                                         --           (0.46)           (0.87)          (0.10)
                                                                     -------------   -------------    -------------   -------------
Net asset value, end of period                                       $      10.74    $      10.50     $      10.79    $       9.90
                                                                     =============   =============    =============   =============
Total Return                                                                 2.29%           1.60%           17.81%           0.00%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                          $124            $121             $171            $101
  Net expenses to average daily net assets#                                  1.66%*          1.65%            1.65%           1.65%*
  Net investment income to average daily net assets                          5.45%*          5.10%            5.39%           5.91%*
  Portfolio turnover rate                                                      22%             54%             104%              7%
   #Computed after giving effect to the voluntary partial waiver 
   of management fee by MassMutual, which terminated May 1, 1997. 
   Without this partial waiver of fees by MassMutual, the ratio 
   of expenses to average daily net assets would have been:                  1.69%*          1.69%            1.69%           1.71%*

<CAPTION> 
                                                                                                 Class 2
                                                                                                 -------
                                                                    Six months ended
                                                                         6/30/97       Year ended       Year ended     Period ended
                                                                       (Unaudited)      12/31/96         12/31/95       12/31/94**
                                                                     -------------   -------------    -------------   -------------
Net asset value, beginning of period                                 $      10.51    $      10.82     $       9.90    $      10.00
                                                                     -------------   -------------    -------------   -------------
Income (loss) from investment operations:
  Net investment income                                                      0.31***         0.60***          0.64            0.11
  Net realized and unrealized gain (loss) on investments                    (0.03)          (0.38)            1.19          (0.10)
                                                                     -------------   -------------    -------------   -------------
   Total income (loss) from investment operations                            0.28            0.22             1.83            0.01
                                                                     -------------   -------------    -------------   -------------
Less distributions to shareholders:
  From net investment income                                                   --           (0.47)           (0.58)          (0.11)
  From net realized gains                                                      --           (0.06)           (0.33)             --
                                                                     -------------   -------------    -------------   -------------
   Total distributions                                                         --           (0.53)           (0.91)          (0.11)
                                                                     -------------   -------------    -------------   -------------
Net asset value, end of period                                       $      10.79    $      10.51     $      10.82    $       9.90
                                                                     =============   =============    =============   =============
Total Return                                                                 2.66%           2.07%           18.51%           0.08%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                          $125            $122             $120            $101
  Net expenses to average daily net assets#                                 $1.11%*          1.10%            1.10%           1.10%*
  Net investment income to average daily net assets                          6.00%*          5.67%            5.97%           6.46%*
  Portfolio turnover rate                                                      22%             54%             104%              7%
   #Computed after giving effect to the voluntary partial waiver
   of management fee by MassMutual, which terminated May 1, 1997. 
   Without this partial waiver of fees by MassMutual, the ratio of 
   expenses to average daily net assets would have been:                     1.14%*          1.14%            1.14%           1.16%*


</TABLE>     
*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.

28 The accompanying notes are an integral part of the financial statements.   
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Core Bond Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 
                                                                                                 Class 3
                                                                                                 -------
                                                                    Six months ended
                                                                        6/30/97         Year ended      Year ended     Period ended
                                                                      (Unaudited)        12/31/96        12/31/95       12/31/94**
                                                                     ------------     ------------    ------------   -------------
<S>                                                                  <C>              <C>             <C>            <C> 
Net asset value, beginning of period                                 $      10.52     $      10.82    $       9.90    $      10.00
                                                                     ------------     ------------    ------------    ------------
Income (loss) from investment operations:
  Net investment income                                                   0.33***          0.64***            0.68            0.11
  Net realized and unrealized gain (loss) on investments                   (0.03)           (0.37)            1.19          (0.10)
                                                                     ------------     ------------    ------------    ------------
   Total income (loss) from investment operations                            0.30             0.27            1.87            0.01
                                                                     ------------     ------------    ------------    ------------
Less distributions to shareholders:
  From net investment income                                                   --           (0.51)          (0.62)          (0.11)
  From net realized gains                                                      --           (0.06)          (0.33)              --
                                                                     ------------     ------------    ------------    ------------
   Total distributions                                                         --           (0.57)          (0.95)          (0.11)
                                                                     ------------     ------------    ------------    ------------
Net asset value, end of period                                       $      10.82     $      10.52    $      10.82    $       9.90
                                                                     ============     ============    ============    ============
Total Return                                                                 2.85%            2.52%          18.87%           0.09%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                         $127             $123            $120            $101
  Net expenses to average daily net assets#                                  0.76%*           0.75%           0.75%           0.75%*
  Net investment income to average daily net assets                          6.35%*           6.01%           6.32%           6.83%*
  Portfolio turnover rate                                                      22%              54%            104%              7%

   #Computed after giving effect to the voluntary 
   partial waiver of management fee by MassMutual, 
   which terminated May 1, 1997. Without this 
   partial waiver of fees by MassMutual, the ratio 
   of expenses to average daily net assets would 
   have been:                                                                0.79%*           0.79%           0.79%           0.81%*

</TABLE>      

<TABLE>     
<CAPTION> 
                                                                                                 Class 4
                                                                                                 ------- 
                                                                    Six months ended
                                                                        6/30/97        Year ended      Year ended     Period ended
                                                                      (Unaudited)       12/31/96        12/31/95       12/31/94**
                                                                     ------------     ------------    ------------    ------------ 
<S>                                                                  <C>              <C>             <C>             <C> 
Net asset value, beginning of period                                 $      10.45     $      10.75    $       9.84    $      10.00
                                                                     ------------     ------------    ------------    ------------
Income (loss) from investment operations:
  Net investment income                                                      0.34***          0.67***         0.72***         0.18
  Net realized and unrealized gain (loss) on investments                    (0.04)           (0.37)           1.17           (0.16)
                                                                     ------------     ------------    ------------    ------------ 
   Total income (loss) from investment operations                            0.30             0.30            1.89            0.02
                                                                     ------------     ------------    ------------    ------------ 
Less distributions to shareholders:
  From net investment income                                                   --            (0.54)          (0.65)          (0.18)
  From net realized gains                                                      --            (0.06)          (0.33)             --
                                                                     ------------     ------------    ------------    ------------ 
   Total distributions                                                         --            (0.60)          (0.98)          (0.18)
                                                                     ------------     ------------    ------------    ------------ 
Net asset value, end of period                                       $      10.75     $      10.45    $      10.75    $       9.84
                                                                     ============     ============    ============    ============ 
Total Return@                                                                2.87%            2.80%          19.15%           0.20%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                     $416,687          $356,699        $253,540        $194,150
  Net expenses to average daily net assets#                               0.5270%*          0.5130%         0.5130%         0.5130%*
  Net investment income to average daily net assets                         6.59%*            6.26%           6.56%           6.86%*
  Portfolio turnover rate                                                     22%               54%            104%              7%

   #Computed after giving effect to the voluntary 
   partial waiver of management fee by MassMutual, 
   which terminated May 1, 1997. Without this 
   partial waiver of fees by MassMutual, the ratio 
   of expenses to average daily net assets would 
   have been:                                                             0.5532%*          0.5550%         0.5553%         0.5672%*

</TABLE>      

*Annualized

**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.

***Per share amount calculated on the average shares method, which more
   appropriately presents the per share data for the period since the use of the
   undistributed income method does not accord with the results of operations.

@Employee retirement benefit plans that invest plan assets in the Separate
 Investment Accounts (SIAs) may be subject to certain charges as set forth in
 their respective Plan Documents. Total return figures would be lower for the
 periods presented if they reflected these charges.

   The accompanying notes are an integral part of the financial statements.  29
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 
                           Number of
                             Shares        Market Value
                             ------        ------------     
<S>                        <C>             <C>  
EQUITIES -- 53.4%
Aerospace & Defense -- 1.6%
Boeing Company                  54,000     $  2,865,375
Raytheon Company                92,000        4,692,000
TRW Inc.                        48,200        2,738,363
                                           ------------
                                             10,295,738
                                           ------------
Agribusiness -- 0.6%
Pioneer Hi-Bred
 International, Inc.            45,500        3,640,000
                                           ------------
Apparel, Textiles & Shoes -- 0.6%
VF Corporation                  44,500        3,771,375
                                           ------------
Automotive & Parts -- 2.6%
Ford Motor Company              97,300        3,673,075
Genuine Parts
 Company                       154,500        5,233,688
Goodyear Tire &
 Rubber Company                113,700        7,198,631
                                           ------------
                                             16,105,394
                                           ------------
Banking, Savings & Loans -- 3.6%
The Bank of New
 York Company,
 Incorporated                  150,000        6,525,000
Comerica, Incorporated          53,000        3,604,000
CoreStates Financial
 Corp.                          81,500        4,380,625
Norwest Corporation             57,000        3,206,250
Pacific Century
 Financial Corporation          25,600        1,184,000
Wachovia Corp.                  60,100        3,504,581
                                           ------------
                                             22,404,456
                                           ------------
Beverages -- 1.0%
Brown-Forman
 Corporation (Class B)          66,600        3,250,913
PepsiCo, Inc                    84,000        3,155,250
                                           ------------
                                              6,406,163
                                           ------------
Chemicals -- 2.5%
E. I. du Pont de
 Nemours and Company            66,000        4,149,750
The Lubrizol
 Corporation                    68,300        2,864,331
Nalco Chemical
 Company                        81,500        3,147,938
Rohm & Haas
 Company                        60,000        5,403,750
                                           ------------
                                             15,565,769
                                           ------------
Commercial Services -- 0.3%
Pinnacle West Capital
 Corporation                    70,500     $  2,119,406
                                           ------------
Communications -- 0.2%
AT & T Corporation              27,000          946,688
                                           ------------
Computers & Office Equipment -- 4.0%
Hewlett-Packard
 Company                       122,000        6,832,000
International Business
 Machines Corporation           70,000        6,313,125
Pitney Bowes, Inc.              84,000        5,838,000
Xerox Corporation               90,000        7,098,750
                                           ------------
                                             26,081,875
                                           ------------
Containers -- 0.5%
Temple-Inland, Inc.             63,000        3,402,000
                                           ------------
Cosmetics & Personal Care -- 0.8%
Kimberly-Clark
 Corporation                    96,800        4,815,800
                                           ------------
Drugs -- 0.5%
Pharmacia & Upjohn,
 Inc.                           94,000        3,266,500
                                           ------------
Electric Utilities -- 0.8%
New England Electric
 System                          6,000          222,000
NIPSCO Industries,
 Inc.                           40,000        1,652,500
SCANA Corporation              130,500        3,238,031
                                           ------------
                                              5,112,531
                                           ------------
Electrical Equipment & Electronics-- 3.9%
AMP, Incorporated              156,700        6,542,225
General Electric
 Company                       164,000       10,721,500
Honeywell Inc.                  44,000        3,338,500
Hubbell, Incorporated
 (Class B)                      96,023        4,224,994
                                           ------------
                                             24,827,219
                                           ------------
Energy -- 3.1%
Amoco Corporation               74,000        6,433,375
Kerr-McGee
 Corporation                    43,500        2,756,813
Mobil Corporation               70,000        4,891,250
Teco Energy, Inc.               95,700        2,446,331
Unocal Corporation              68,900        2,674,181
                                           ------------
                                             19,201,950
                                           ------------
Financial Services -- 0.9%
American Express
 Company                        76,500     $  5,699,250
                                           ------------
Foods -- 1.7%
Archer-Daniels-Midland
 Company                        12,400          291,400
ConAgra, Inc.                   74,200        4,758,075
CPC International, Inc.         61,000        5,631,063
                                           ------------
                                             10,680,538
                                           ------------
Forest Products & Paper -- 1.2%
Westvaco Corporation           101,500        3,190,906
Weyerhaeuser Company            84,600        4,399,200
                                           ------------
                                              7,590,106
                                           ------------
Hardware & Tools -- 0.5%
The Stanley Works               77,000        3,080,000
                                           ------------
Healthcare -- 4.4%
Becton, Dickinson and
 Company                       102,000        5,163,750
Bristol-Myers Squibb
 Company                       178,000       14,418,000
Pfizer, Incorporated            22,500        2,688,750
Schering-Plough Corp.          119,600        5,725,850
                                           ------------
                                             27,996,350
                                           ------------
Industrial Distribution -- 0.6%
W.W. Grainger, Inc.             48,000        3,753,000
                                           ------------
Industrial Transportation -- 1.5%
Burlington Northern
 Santa Fe Corporation           51,900        4,664,513
Norfolk Southern
 Corporation                    48,000        4,836,000
                                           ------------
                                              9,500,513
                                           ------------
Insurance -- 3.9%
Jefferson-Pilot
 Corporation                    52,250        3,650,969
Marsh & McLennan
 Companies, Inc.               110,000        7,851,250
MBIA, Inc.                      51,500        5,809,844
SAFECO Corporation             149,000        6,956,438
                                           ------------
                                             24,268,501
                                           ------------
Machinery & Components -- 1.1%
Dover Corporation               62,000        3,813,000
Parker-Hannifin
 Corporation                    48,000        2,913,000
                                           ------------
                                              6,726,000
                                           ------------
                                             (Continued)
</TABLE> 

32   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                           Number of
                             Shares        Market Value
                             ------        ------------     
<S>                        <C>             <C>  
Manufacturing -- 0.4%
Pall Corporation                99,600     $  2,315,700
                                           ------------
Miscellaneous -- 1.0%
Harsco Corporation              69,000        2,794,500
Minnesota Mining &
 Manufacturing
 Company                        34,200        3,488,400
                                           ------------
                                              6,282,900
                                           ------------
Oil & Gas -- 1.2%
ENI SPA, Sponsored
 ADR                            31,900        1,814,313
Occidental Petroleum
 Corporation                   128,500        3,220,531
Union Pacific
 Resources Group Inc.          108,300        2,693,963
                                           ------------
                                              7,728,807
                                           ------------
Photography -- 0.6%
Eastman Kodak
 Company                        49,300        3,783,775
                                           ------------
Publishing & Printing -- 1.3%
The McGraw-Hill
 Companies, Inc.                89,000        5,234,313
R.R. Donnelley & Sons
 Company                        75,500        2,765,188
                                           ------------
                                              7,999,501
                                           ------------
Retail -- 1.4%
The May Department
 Stores Company                 98,500        4,654,125
Sears Roebuck and Co.           78,000        4,192,500
                                           ------------
                                              8,846,625
                                           ------------
Retail-Grocery -- 1.5%
Albertson's, Inc.              169,100        6,172,150
American Stores
 Company                        61,900        3,056,313
                                           ------------
                                              9,228,463
                                           ------------
Telecommunications -- 0.8%
GTE Corporation                116,000        5,089,500
                                           ------------
Telephone Utilities -- 1.4%
Ameritech Corporation           44,500        3,023,219
Frontier Corporation           159,500        3,180,031
Southern New England
 Telecommunications
 Corporation                    63,200        2,456,900
                                           ------------
                                              8,660,150
                                           ------------
Tobacco -- 1.4%
Fortune Brands, Inc.            88,500        3,302,156
Gallaher Group PLC,
 ADR*                           88,500        1,631,719
UST Inc.                       136,800        3,796,200
                                           ------------
                                              8,730,075
                                           ------------

TOTAL EQUITIES                             $335,922,618
                                           ------------
(Cost $214,936,985)

                            Principal
                             Amount        Market Value
                            ---------      ------------ 
BONDS & NOTES -- 16.5%
ASSET BACKED SECURITIES -- 1.2%
Capita Equipment
 Receivables Trust
 1996-1, Class A4
 6.280% 6/15/2000           $1,000,000       $  999,060
Chase Manhattan Auto
 Grantor Trust 1996-B,
 Class A
 6.610% 9/15/2002            1,881,518        1,888,573
Daimler-Benz Auto
 Grantor Trust 1995-A,
 Class A
 5.850% 5/15/2002              801,171          800,169
Ford Credit 1994-B
 Grantor Trust
 7.300% 10/15/1999             249,094          251,194
Ford Credit Auto
 Owner Trust 1996-B,
 Class A-4
 6.300% 1/15/2001            1,000,000          998,120
Metlife Capital
 Equipment Loan Trust
 Series 1997-A, Class A
 6.850% 5/20/2008              500,000          497,535
Nissan Auto
 Receivables 1994-A
 Grantor Trust, Class A
 6.450% 9/15/1999              280,204          280,555
Railcar Trust No.
 1992-1
 7.750% 6/01/2004              380,705          394,742
World Omni 1996-A
 Automobile Lease
 Securitization Trust,
 Class A1
 6.300% 6/25/2002            1,455,635        1,459,274
                                           ------------
TOTAL ASSET BACKED
SECURITIES                                    7,569,222
                                           ------------
(Cost $7,572,210)

CORPORATE DEBT -- 6.6% 
AirTouch  
 Communications, Inc.
 7.500% 7/15/2006            1,000,000        1,021,200
America West Airlines
 1996-1, Class A
 6.850% 7/02/2009            1,000,000          973,750
American Airlines
 1994-A Pass-Through
 Trusts, Class A4 ++
 9.780% 11/26/2011           1,000,000        1,137,500
AMR Corporation ++
 9.000% 8/01/2012              500,000          560,070
Analog Devices, Inc.
 6.625% 3/01/2000              500,000          497,155
Associates Corporation
 of North America
 6.750% 8/01/2001            1,000,000        1,001,240
Barrick Gold
 Corporation
 7.500% 5/01/2007            1,000,000        1,023,070
Bell Atlantic Financial
 Services, Inc. ++
 6.610% 2/04/2000            1,000,000        1,002,352
BHP Finance (USA)
 Limited
 6.420% 3/01/2026            1,000,000          979,880
Carlisle Companies
 Incorporated
 7.250% 1/15/2007              500,000          499,055
Champion International
 Corporation
 6.400% 2/15/2026            1,000,000          951,740
The Charles Schwab
 Corporation
 6.250% 1/23/2003            1,000,000          962,500
CITGO Petroleum
 Corporation
 7.875% 5/15/2006              250,000          258,300
Comcast Cable
 Communications, Inc.
 144A
 8.375% 5/01/2007              750,000          793,403
Continental Airlines,
 Inc., Series 1996-2B
 8.560% 1/02/2016              486,053          524,330
Continental Airlines,
 Inc., Series 1996-B
 7.820% 4/15/2015              490,196          505,500
Crown Cork & Seal
 Company Inc.
 6.750% 12/15/2003           1,000,000          985,470
CSX Corporation 144A
 7.250% 5/01/2027            1,200,000        1,224,312
Delta Air Lines, Inc.,
 1992, Series C
 8.540% 1/02/2007              419,455          446,170

                                             (Continued)
</TABLE> 

The accompanying notes are an integral part of the financial statements.     33
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------ 
<S>                         <C>            <C>  
English China Clays
 Delaware Inc. ++
 7.375% 10/01/2002          $  500,000     $    508,550
ERAC USA Finance
 Company 144A
 6.950% 1/15/2006              500,000          489,115
FBG Finance Limited
 144A
 7.875% 6/01/2016            1,000,000        1,004,030
Fletcher Challenge Ltd.
 7.750% 6/20/2006              500,000          514,710
Foodbrands America, Inc.
 10.750% 5/15/2006           1,000,000        1,172,320
General American
 Transportation
 Corporation
 6.750% 3/01/2006            1,000,000          967,720
General Mills, Inc.
 8.900% 6/15/2006              500,000          557,025
The Goldman Sachs
 Group, L.P. 144A
 6.200% 2/15/2001            1,000,000          984,040
GTE Corporation
 9.100% 6/01/2003              500,000          553,055
Hilton Hotels
 Corporation
 7.375% 6/01/2002              500,000          503,585
Leucadia National
 Corporation
 7.750% 8/15/2013            1,000,000          974,780
Lockheed Martin
 Corporation
 7.700% 6/15/2008            1,000,000        1,043,040
MAPCO Inc.
 7.250% 3/01/2009            1,000,000        1,000,920
McDonnell Douglas
 Corporation ++
 9.250% 4/01/2002              500,000          549,770
MFS Communications
 Company, Inc. (Step Up)
 0.000% 1/15/2004              500,000          465,400
Millipore Corporation
 7.500% 4/01/2007            1,000,000        1,013,160
Mobil Corporation
 8.625% 8/15/2021            1,000,000        1,151,340
Newmont Mining
 Corporation ++
 8.625% 4/01/2002            1,000,000        1,065,380
News America
 Holdings Incorporated
 9.250% 2/01/2013            1,000,000        1,114,970
Norfolk Southern
 Corporation
 7.050% 5/01/2037            1,350,000        1,370,169
North Finance
 (Bermuda) Limited
 144A
 7.000% 9/15/2005            1,000,000          985,000
Petroleum Geo-
 Services ASA
 7.500% 3/31/2007              250,000          251,898
Rite Aid Corporation
 6.700% 12/15/2001             500,000          496,205
Rolls-Royce Capital
 Inc.
 7.125% 7/29/2003            1,000,000        1,004,030
Scholastic Corporation
 7.000% 12/15/2003           1,000,000          992,210
Thomas & Betts
 Corporation
 8.250% 1/15/2004              500,000          528,165
Time Warner Inc.
 7.750% 6/15/2005            1,000,000        1,016,250
Time Warner Inc.
 Pass-Thru Asset
 Trust 1997-1 144A
 6.100% 12/30/2001             750,000          718,410
US Air, Inc., Class B
 7.500% 10/15/2009             481,080          484,086
The US West Capital
 Funding, Inc.
 6.850% 1/15/2002            1,000,000          998,930
WorldCom, Inc.
 7.750% 4/01/2007              500,000          511,340
W.R. Grace & Co.
 8.000% 8/15/2004            1,000,000        1,046,780
                                           ------------
TOTAL CORPORATE DEBT                         41,383,380
                                           ------------
(Cost $40,328,848)

U.S. GOVERNMENT AGENCY
OBLIGATIONS -- 4.2%
Federal Home Loan Mortgage Corporation (FHLMC) -- 0.8%
Collateralized Mortgage Obligations -- 0.7%
FHLMC Series 1322
 Class G
 7.500% 2/15/2007            1,000,000        1,020,310
FHLMC Series 1625
 Class D
 5.250% 7/15/2004            3,100,000        3,074,797
FHLMC Series 1625
 Class EA
 5.750% 3/15/2007            1,000,000          984,060
                                           ------------
                                              5,079,167
                                           ------------
Pass-Through Securities -- 0.1%
FHLMC
 9.000% 3/01/2017              169,969          180,864
                                           ------------
                                              5,260,031
                                           ------------
Federal National Mortgage Association
(FNMA) -- 0.9%
Collateralized Mortgage Obligations -- 0.8%
FNMA Series 1993-134
 Class GA
 6.500% 2/25/2007            1,000,000          990,930
FNMA Series 1993-191
 Class PD
 5.400% 3/25/2004            1,000,000          992,500
FNMA Series 1993-221
 Class D
 6.000% 12/25/2008             995,000          951,469
FNMA Series 1996-54
 Class C
 6.000% 9/25/2008            2,000,000        1,917,500
                                           ------------
                                              4,852,399
                                           ------------
Pass-Through Securities -- 0.1%
FNMA
 8.000% 5/01/2013              462,130          470,346
                                           ------------
                                              5,322,745
                                           ------------
Government National Mortgage Association 
(GNMA) -- 1.6%
Pass-Through Securities
GNMA
 6.000% 5/20/2027            2,472,203        2,479,941
GNMA
 6.875% 12/20/2025             426,030          436,417
GNMA
 7.000% 7/20/2025            1,651,054        1,696,194
GNMA
 7.500% 10/15/2006 -
            6/15/2017        2,798,797        2,844,158
GNMA
 8.000% 11/15/2004 -
            7/15/2008        1,653,057        1,710,087
GNMA
 9.000% 12/15/2008 -
            5/15/2009          561,048          598,805
                                           ------------
                                              9,765,602
                                           ------------
U.S. Government Guaranteed Notes -- 0.9%
1991-A Fairfax
 County, VA
 8.740% 8/01/2001              200,000          213,750
1991-A Jefferson
 Park, CA
 8.740% 8/01/2001            1,740,000        1,859,625
1991-A Monroe
 County, NY
 8.740% 8/01/2001              500,000          534,375
1991-A Rochester, NY
 8.740% 8/01/2001               60,000           64,125
U.S. Dept. of Housing
 and Urban
 Development, Series
 1995-A ++
 8.240% 8/01/2002            3,000,000        3,215,760
                                           ------------
                                              5,887,635
                                           ------------
TOTAL U.S. GOVERNMENT
AGENCY OBLIGATIONS                           26,236,013
                                           ------------
(Cost $25,577,145)
                                             (Continued)

</TABLE> 

34   The accompanying notes are an integral part of the financial statements.
 
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 
                           Principal
                             Amount        Market Value
                           ---------       ------------ 
<S>                        <C>             <C> 
U.S. TREASURY OBLIGATIONS -- 4.5%
U.S. Treasury Bonds -- 2.4%
U.S. Treasury Bond
 7.250% 5/15/2016          $ 7,750,000     $  8,081,778
U.S. Treasury Bond
 8.750% 5/15/2017            6,000,000        7,218,720
                                           ------------
                                             15,300,498
                                           ------------
U.S. Treasury Notes -- 1.8%
U.S. Treasury Note
 5.875% 1/31/1999            4,000,000        3,991,880
U.S. Treasury Note
 7.250% 8/15/2004            7,125,000        7,427,813
                                           ------------
                                             11,419,693
                                           ------------

U.S. Treasury Strip -- 0.3%
U.S. Treasury Strip -- Principal Only
 0.000% 2/15/1999            2,250,000        2,043,518
                                           ------------
TOTAL U.S. TREASURY
OBLIGATIONS                                  28,763,709
                                           ------------
(Cost $28,715,544)

TOTAL BONDS & NOTES                         103,952,324
                                           ------------
(Cost $102,193,747)

SHORT-TERM INVESTMENTS -- 30.0%
Commercial Paper
Boston Scientific
 Corporation
 5.800% 7/01/1997            4,745,000        4,745,000
Boston Scientific
 Corporation
 5.820% 8/06/1997            3,155,000        3,136,638
Boston Scientific
 Corporation
 5.870% 7/10/1997            1,895,000        1,892,219
Burlington Northern
 Santa Fe Corporation
 5.750% 8/04/1997            6,725,000        6,688,479
Carter Holt Harvey
 Limited
 5.800% 7/18/1997            2,730,000        2,722,523
Carter Holt Harvey
 Limited
 5.820% 7/08/1997            4,540,000        4,534,862
Comdisco, Inc.
 5.770% 7/29/1997            2,400,000        2,389,229
Comdisco, Inc.
 5.800% 8/18/1997            5,060,000        5,020,869
Comdisco, Inc.
 5.810% 8/15/1997            3,555,000        3,529,182
Cox Enterprises, Inc.
 5.800% 7/17/1997            5,560,000        5,545,668
Crown Cork & Seal
 Company Inc.
 5.840% 8/26/1997            4,070,000        4,033,026
CSX Corporation
 5.760% 8/11/1997            6,185,000        6,144,426
CSX Corporation
 5.810% 7/03/1997            5,465,000        5,463,236
Dana Credit
 Corporation
 5.790% 7/28/1997            2,270,000        2,259,777
Dominion Resources,
 Inc.
 5.780% 7/30/1997            4,670,000        4,648,256
Dominion Resources,
 Inc.
 5.820% 7/21/1997            3,585,000        3,572,829
Enron Corp.
 5.780% 8/01/1997            6,275,000        6,243,768
Federal Signal Corp.
 5.760% 7/02/1997            6,715,000        6,713,926
Harris Corporation
 5.790% 8/13/1997            4,155,000        4,126,265
Illinois Power
 Company
 5.780% 7/24/1997            2,200,000        2,191,876
Illinois Power
 Company
 5.780% 7/31/1997            2,935,000        2,920,863
Illinois Power
 Company
 5.820% 8/05/1997            5,285,000        5,255,096
Lockheed Martin
 Corporation
 5.810% 8/25/1997            4,100,000        4,063,607
Lockheed Martin
 Corporation
 5.900% 7/10/1997            5,800,000        5,792,390
Mattel, Inc.
 5.780% 7/25/1997            3,280,000        3,267,361
Mattel, Inc.
 5.780% 8/22/1997            1,605,000        1,591,600
ORIX Credit Alliance, Inc.
 5.820% 7/09/1997            2,155,000        2,152,213
ORIX Credit Alliance, Inc.
 5.850% 7/15/1997            4,660,000        4,649,399
ORIX Credit Alliance, Inc.
 5.880% 7/16/1997            6,000,000        5,985,300
Praxair, Inc.
 5.760% 8/14/1997            4,945,000        4,910,187
Public Service
 Company of Colorado
 5.800% 8/19/1997            6,055,000        6,007,199
Public Service
 Company of Colorado
 5.840% 9/19/1997            3,980,000        3,929,144
Public Service
 Electric and Gas
 Company
 5.780% 7/23/1997            2,750,000        2,740,286
Public Service
 Electric and Gas
 Company
 5.820% 7/07/1997            3,460,000        3,456,644
Rite Aid Corporation
 5.780% 7/22/1997            2,100,000        2,092,920
Rite Aid Corporation
 5.800% 7/14/1997            3,295,000        3,288,099
Textron Financial
 Corporation
 5.800% 7/11/1997            6,700,000        6,689,205
Textron Financial
 Corporation
 5.820% 7/02/1997            2,465,000        2,464,602
Union Pacific
 Corporation
 5.850% 8/07/1997            4,675,000        4,646,892
Union Pacific
 Corporation
 5.850% 9/11/1997            5,400,000        5,337,900
Union Pacific
 Corporation
 5.850% 9/15/1997            4,535,000        4,479,950
UOP
 5.830% 8/08/1997            5,090,000        5,058,677
Whirlpool Financial
 Corporation
 5.800% 8/12/1997            6,620,000        6,575,205
Whirlpool Financial
 Corporation
 5.800% 8/20/1997            5,375,000        5,331,701
                                           ------------
TOTAL SHORT-TERM
INVESTMENTS                                 188,288,494
                                           ------------
(Cost $188,285,661)

TOTAL INVESTMENTS -- 99.9%                  628,163,436
(Cost $505,416,393)+

Other Assets/
(Liabilities) 0.1%                              527,625
                                           ------------

NET ASSETS -- 100.0%                       $628,691,061
                                           ------------
</TABLE> 
Notes to Portfolio of Investments 
+Aggregate cost for Federal tax purposes (Note 7)


144A: Securities exempt from registration under Rule 144A of the Securities Act
      of 1933. 144A: These securities may be resold in transactions exempt from
      registration, normally to qualified institutional buyers.

*Non-income producing security

++ All or a portion of this security is segregated to cover forward purchase
commitments. (Note 2).


 The accompanying notes are an integral part of the financial statements.    35
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

Statement of Assets and Liabilities
                                                                                  June 30, 1997  
                                                                                   (Unaudited)   
                                                                                ---------------- 
<S>                                                                             <C>              
Assets:
      Investments, at value (cost $317,130,732) (Note 2).....................   $    439,874,942
      Short-term investments, at value (cost $188,285,661) (Note 2)..........        188,288,494
                                                                                ----------------
        Total Investments....................................................        628,163,436
      Cash...................................................................              8,223
      Receivables from:
        Investments sold.....................................................          1,158,998
        Fund shares sold.....................................................            830,703
        Interest and dividends...............................................          2,214,668
                                                                                ----------------
           Total assets......................................................        632,376,028
                                                                                ----------------

Liabilities:
      Payables for:
        Investments purchased................................................          3,102,397
        Settlement of investments purchased on a
           forward commitment basis (Note 2).................................              4,847
        Fund shares redeemed.................................................            272,626
        Directors' fees and expenses (Note 3)................................              5,316
        Affiliates (Note 3):
           Investment management fees........................................            238,126
           Administration fees...............................................             45,229
           Service and distribution fees.....................................                281
      Accrued expenses and other liabilities.................................             16,145
                                                                                ----------------
           Total liabilities.................................................          3,684,967
                                                                                ----------------
      Net assets.............................................................   $    628,691,061
                                                                                ================
Net assets consist of:
      Paid-in capital........................................................   $    483,414,936
      Undistributed net investment income....................................         10,713,433
      Accumulated net realized gain on investments...........................         11,820,496
      Net unrealized appreciation on investments
           and forward commitments...........................................        122,742,196
                                                                                ----------------
                                                                                $    628,691,061
                                                                                ================
Net assets:
      Class 1................................................................   $        146,563
                                                                                ================
      Class 2................................................................   $        148,717
                                                                                ================
      Class 3................................................................   $        149,854
                                                                                ================
      Class 4................................................................   $    628,245,927
                                                                                ================
Shares outstanding:
      Class 1................................................................             10,838
                                                                                ================
      Class 2................................................................             10,948
                                                                                ================
      Class 3................................................................             10,994
                                                                                ================
      Class 4................................................................         46,209,722
                                                                                ================
Net asset value, offering price and
redemption price per share:
      Class 1................................................................   $          13.52
                                                                                ================
      Class 2................................................................   $          13.58
                                                                                ================
      Class 3................................................................   $          13.63
                                                                                ================
      Class 4................................................................   $          13.60
                                                                                ================
</TABLE> 

36   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statement of Operations

<TABLE> 
<CAPTION> 
                                                                                Six months ended  
                                                                                 June 30, 1997    
                                                                                  (Unaudited)     
                                                                                ---------------   
<S>                                                                             <C>               
Investment income:                                                                                
      Interest................................................................  $     8,622,309
      Dividends...............................................................        3,596,262
                                                                                ---------------
        Total investment income...............................................       12,218,571
                                                                                ---------------

Expenses (Note 1):
      Investment management fees (Note 3).....................................        1,309,860
      Custody fees............................................................           29,090
      Audit and legal fees....................................................            7,400
      Directors' fees (Note 3)................................................           10,526
      Fees waived by the investment manager (Note 3)..........................          (74,994)
                                                                                ---------------
                                                                                      1,281,882
      Administration fees (Note 3):
        Class 1...............................................................              393
        Class 2...............................................................              363
        Class 3...............................................................              227
        Class 4...............................................................          247,822
      Distribution and service fees (Note 3):
        Class 1...............................................................              448
        Class 2...............................................................              105
                                                                                ---------------
          Net expenses........................................................        1,531,240
                                                                                ---------------
          Net investment income...............................................       10,687,331
                                                                                ---------------
Realized and unrealized gain (loss):
      Net realized gain on investment transactions and forward commitments....        9,899,503
      Net change in unrealized appreciation (depreciation) on
        investments and forward commitments...................................       36,649,248
                                                                                --------------- 
          Net realized and unrealized gain....................................       46,548,751
                                                                                ---------------
      Net increase in net assets resulting from operations....................  $    57,236,082
                                                                                ================
</TABLE> 

  The accompanying notes are an integral part of the financial statements.    37
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>                    
<CAPTION>                                               
                                                                                         Six months ended                           
Statements of                                                                             June 30, 1997          Year ended    
Changes in Net                                                                             (Unaudited)        December 31, 1996
Assets                                                                                  -----------------    ------------------
                   <S>                                                                  <C>                  <C> 
                   Increase(Decrease) in Net Assets:                                                                              
                   Operations:                                                                                                    
                         Net investment income ......................................   $      10,687,331    $       19,347,629   
                         Net realized gain on investment transactions 
                          and forward commitments ...................................           9,899,503             8,885,806   
                         Net change in unrealized appreciation (depreciation) on                                                  
                          investments and forward commitments .......................          36,649,248            33,108,845   
                                                                                        -----------------    ------------------
                          Net increase in net assets resulting from operations ......          57,236,082            61,342,280   
                                                                                        -----------------    ------------------
                   Distributions to shareholders (Note 2):                                                                        
                         From net investment income:                                                                              
                         Class 1 ....................................................                  --                (3,204)   
                         Class 2 ....................................................                  --                (4,068)   
                         Class 3 ....................................................                  --                (4,538)   
                         Class 4 ....................................................                  --           (19,441,756)   
                                                                                        -----------------    ------------------
                          Total distributions from net investment income.............                  --           (19,453,566)   
                                                                                        -----------------    ------------------
                         From net realized gains:                                                                                 
                         Class 1 ....................................................                  --                (1,969)   
                         Class 2 ....................................................                  --                (1,970)   
                         Class 3 ....................................................                  --                (1,972)   
                         Class 4 ....................................................                  --            (7,883,759)   
                                                                                        -----------------    ------------------
                          Total distributions from net realized gains................                  --            (7,889,670)   
                                                                                        -----------------    ------------------
                   Net fund share transactions (Note 5):                                                                          
                         Class 1 ....................................................                  --               (49,367)   
                         Class 2 ....................................................                  --                 6,038   
                         Class 3 ....................................................                  --                 6,510   
                         Class 4 ....................................................           7,769,131            72,536,092   
                                                                                        -----------------    ------------------
                          Increase in net assets from net fund share transactions ...           7,769,131            72,499,273   
                                                                                        -----------------    ------------------
                         Total increase in net assets ...............................          65,005,213           106,498,317   
                   Net assets:                                                                                                    
                         Beginning of period ........................................         563,685,848           457,187,531   
                                                                                        -----------------    ------------------
                         End of period (including undistributed net investment income                                             
                          of $10,713,433 and $26,102, respectively) .................   $     628,691,061    $      563,685,848   
                                                                                        =================    ==================
</TABLE> 

38   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>     
<CAPTION> 

Financial Highlights
(For a share outstanding throughout each period)
                                                                                                Class 1
                                                                                                -------
                                                                   Six months ended
                                                                       6/30/97         Year ended      Year ended   Period ended
                                                                     (Unaudited)        12/31/96        12/31/95      12/31/94**
                                                                    ------------     ------------    ------------   ------------    

<S>                                                                 <C>              <C>             <C>            <C> 
Net asset value, beginning of period                                $      12.35     $      11.50    $       9.94   $      10.00
                                                                    ------------     ------------    ------------   ------------    

Income (loss) from investment operations:
  Net investment income                                                     0.16             0.34            0.28           0.06
  Net realized and unrealized gain (loss) on investments                    1.01             1.01            1.70          (0.06)
                                                                    ------------     ------------    ------------   ------------    

  Total income (loss) from investment operations                            1.17             1.35            1.98             --
                                                                    ------------     ------------    ------------   ------------    

Less distributions to shareholders:
  From net investment income                                                  --            (0.31)          (0.33)         (0.06)
  From net realized gains                                                     --            (0.19)          (0.09)            --
                                                                    ------------     ------------    ------------   ------------    

    Total distributions                                                       --            (0.50)          (0.42)         (0.06)
                                                                    ------------     ------------    ------------   ------------    

Net asset value, end of period                                      $      13.52     $      12.35    $      11.50   $       9.94
                                                                    ============     ============    ============   ============
Total Return                                                                9.47%           11.67%          19.92%          0.00%

Ratios / Supplemental Data:
Net assets, end of period (000's)                                           $147             $134            $173           $100
  Net expenses to average daily net assets#                                 1.66%*           1.65%           1.65%          1.65%*
  Net investment income to average daily net assets                         2.54%*           2.71%           3.03%          3.39%*
  Portfolio turnover rate                                                     13%              26%             23%             2%
  Average broker commission rate (a)                                $     0.0593     $     0.0594              N/A            N/A

   #Computed after giving effect to the voluntary partial waiver
    of management fee by MassMutual, which terminated May 1, 1997. 
    Without this partial waiver of fees by MassMutual, the ratio 
    of expenses to average daily net assets would have been:                1.69%*           1.69%           1.69%          1.71%*

<CAPTION> 
                                                                                                Class 2
                                                                                                -------
                                                                   Six months ended
                                                                       6/30/97        Year ended      Year ended    Period ended
                                                                     (Unaudited)       12/31/96        12/31/95      12/31/94**
                                                                    ------------     ------------    ------------   ------------    

<S>                                                                 <C>              <C>             <C>            <C> 
Net asset value, beginning of period                                $      12.37     $      11.53    $       9.95   $      10.00
                                                                    ------------     ------------    ------------   ------------    

Income (loss) from investment operations:
  Net investment income                                                     0.20             0.39            0.39           0.06
  Net realized and unrealized gain (loss) on investments                    1.01             1.03            1.65          (0.04)
                                                                    ------------     ------------    ------------   ------------    

   Total income (loss) from investment operations                           1.21             1.42            2.04           0.02
                                                                    ------------     ------------    ------------   ------------    

Less distributions to shareholders:
  From net investment income                                                  --            (0.39)          (0.37)         (0.07)
  From net realized gains                                                     --            (0.19)          (0.09)            --
                                                                    ------------     ------------    ------------   ------------    

   Total distributions                                                        --            (0.58)          (0.46)         (0.07)
                                                                    ------------     ------------    ------------   ------------    

Net asset value, end of period                                      $      13.58     $      12.37    $      11.53   $       9.95
                                                                    ============     ============    ============   ============
Total Return                                                                9.78%           12.25%          20.50%          0.17%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                         $149             $135            $121           $100
  Net expenses to average daily net assets#                                 1.11%*           1.10%           1.10%          1.10%*
  Net investment income to average daily net assets                         3.09%*           3.23%           3.60%          3.94%*
  Portfolio turnover rate                                                     13%              26%             23%             2%
  Average broker commission rate (a)                                $     0.0593     $     0.0594              N/A            N/A

   #Computed after giving effect to the voluntary partial waiver
    of management fee by MassMutual, which terminated May 1, 1997. 
    Without this partial waiver of fees by MassMutual, the ratio 
    of expenses to average daily net assets would have been:                1.14%*           1.14%           1.14%          1.16%*
</TABLE>      

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.


   The accompanying notes are an integral part of the financial statements.   39
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Balanced Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE>     
<CAPTION> 

Financial Highlights
(For a share outstanding throughout each period)
                                                                                              Class 3
                                                                                              -------  
                                                                 Six months ended
                                                                     6/30/97       Year ended       Year ended      Period ended
                                                                   (Unaudited)      12/31/96         12/31/95        12/31/94**
                                                                  ------------    ------------     ------------     ------------    
<S>                                                               <C>             <C>              <C>              <C> 
Net asset value, beginning of period                              $      12.39    $      11.55     $       9.96     $      10.00
                                                                  ------------    ------------     ------------     ------------    

Income (loss) from investment operations:
  Net investment income                                                   0.22            0.44             0.43             0.07
  Net realized and unrealized gain (loss) on investments                  1.02            1.02             1.66            (0.04)
                                                                  ------------    ------------     ------------     ------------    
   Total income (loss) from investment operations                         1.24            1.46             2.09             0.03
                                                                  ------------    ------------     ------------     ------------    

Less distributions to shareholders:
  From net investment income                                                --           (0.43)           (0.41)           (0.07)
  From net realized gains                                                   --           (0.19)           (0.09)              --
                                                                  ------------    ------------     ------------     ------------    
   Total distributions                                                      --           (0.62)           (0.50)           (0.07)
                                                                  ------------    ------------     ------------     ------------    
Net asset value, end of period                                    $      13.63    $      12.39     $      11.55     $       9.96
                                                                  ============    ============     ============     ============
Total Return                                                             10.01%          12.61%           20.96%            0.28%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                       $150            $136             $121             $100
  Net expenses to average daily net assets#                               0.76%*          0.75%            0.75%            0.75%*
  Net investment income to average daily net assets                       3.43%*          3.60%            3.94%            4.32%*
  Portfolio turnover rate                                                   13%             26%              23%               2%
  Average broker commission rate (a)                              $     0.0593    $     0.0594               N/A              N/A

   #Computed after giving effect to the voluntary 
    partial waiver of management fee by 
    MassMutual, which terminated May 1, 1997. 
    Without this partial waiver of fees 
    by MassMutual, the ratio of expenses to average  
    daily net assets would have been:                                     0.79%*          0.79%            0.79%            0.81%*
<CAPTION> 
                                                                                             Class 4
                                                                                             -------   
                                                                 Six months ended
                                                                     6/30/97       Year ended       Year ended      Period ended
                                                                   (Unaudited)      12/31/96         12/31/95        12/31/94**
                                                                  ------------    ------------     ------------     ------------    
<S>                                                               <C>             <C>              <C>              <C> 
Net asset value, beginning of period                              $      12.34    $      11.51     $       9.92     $      10.00
                                                                  ------------    ------------     ------------     ------------    

Income (loss) from investment operations:
  Net investment income                                                   0.23            0.46             0.44             0.11
  Net realized and unrealized gain (loss) on investments                  1.03            1.02             1.68           (0.08)
                                                                  ------------    ------------     ------------     ------------    
   Total income (loss) from investment operations                         1.26            1.48             2.12             0.03
                                                                  ------------    ------------     ------------     ------------    

Less distributions to shareholders:
  From net investment income                                                --           (0.46)           (0.44)           (0.11)
  From net realized gains                                                   --           (0.19)           (0.09)              --
                                                                  ------------    ------------     ------------     ------------    
   Total distributions                                                      --           (0.65)           (0.53)           (0.11)
                                                                  ------------    ------------     ------------     ------------    
Net asset value, end of period                                    $      13.60    $      12.34     $      11.51     $       9.92
                                                                  ============    ============     ============     ============
Total Return@                                                            10.21%          12.83%           21.31%            0.29%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                   $628,246        $563,280         $456,773         $349,688
  Net expenses to average daily net assets#                             0.5256%*        0.5120%          0.5120%          0.5120%*
  Net investment income to average daily net assets                       3.67%*          3.83%            4.18%            4.29%*
  Portfolio turnover rate                                                   13%             26%              23%               2%
  Average broker commission rate (a)                              $     0.0593    $     0.0594               N/A              N/A
 
   #Computed after giving effect to the voluntary 
    partial waiver of management fee by 
    MassMutual, which terminated May 1, 1997. 
    Without this partial waiver of fees 
    by MassMutual, the ratio of expenses to average  
    daily net assets would have been:                                   0.5514%*        0.5522%          0.5514%          0.5650%* 
</TABLE>      

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.
@ Employee retirement benefit plans that invest plan assets in the Separate
  Investment Accounts (SIAs) may be subject to certain charges as set forth in
  their respective Plan Documents. Total return figures would be lower for the
  periods presented if they reflected these charges.


40   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 
                              Number of
                               Shares      Market Value
                               ------      ------------ 
<S>                           <C>          <C>   
EQUITIES -- 95.3%
Aerospace & Defense -- 2.9%
Boeing Company                 460,000     $ 24,408,750
Raytheon Company               772,000       39,372,000
TRW Inc.                       396,600       22,531,838
                                           ------------
                                             86,312,588
                                           ------------

Agribusiness -- 1.0%
Pioneer Hi-Bred
 International, Inc.           385,000       30,800,000
                                           ------------

Apparel, Textiles & Shoes -- 1.1%
VF Corporation                 365,000       30,933,750
                                           ------------

Automotive & Parts -- 4.8%
Ford Motor Company             945,300       35,685,075
Genuine Parts
 Company                     1,290,000       43,698,750
Goodyear Tire &
 Rubber Company                955,000       60,463,438
                                           ------------
                                            139,847,263
                                           ------------

Banking, Savings & Loans -- 6.4%
The Bank of New
 York Company,
 Incorporated                1,265,000       55,027,500
Comerica, Incorporated         450,000       30,600,000
CoreStates Financial
 Corp.                         700,000       37,625,000
Norwest Corporation            485,000       27,281,250
Pacific Century
 Financial Corporation         214,600        9,925,250
Wachovia Corp.                 494,000       28,806,375
                                           ------------
                                            189,265,375
                                           ------------

Beverages -- 1.8%
Brown-Forman
 Corporation (Class B)         575,000       28,067,188
PepsiCo, Inc                   700,000       26,293,750
                                           ------------
                                             54,360,938
                                           ------------

Chemicals -- 4.4%
E. I. du Pont de
 Nemours and Company           550,000       34,581,250
The Lubrizol
 Corporation                   571,200       23,954,700
Nalco Chemical
 Company                       680,000       26,265,000
Rohm & Haas
 Company                       503,000       45,301,438
                                           ------------
                                            130,102,388
                                           ------------

Commercial Services -- 0.6%
Pinnacle West Capital
 Corporation                   588,792       17,700,560
                                           ------------

Communications -- 0.3%
AT & T Corporation             224,800        7,882,050
                                           ------------

Computers & Office Equipment -- 7.3%
Hewlett-Packard
 Company                     1,020,000       57,120,000
International Business
 Machines Corporation          582,000       52,489,125
Pitney Bowes, Inc.             700,000       48,650,000
Xerox Corporation              723,000       57,026,625
                                           ------------
                                            215,285,750
                                           ------------

Containers -- 1.0%
Temple-Inland, Inc.            525,000       28,350,000
                                           ------------

Cosmetics & Personal Care -- 1.4%
Kimberly-Clark
 Corporation                   806,000       40,098,500
                                           ------------

Drugs -- 0.9%
Pharmacia & Upjohn,
 Inc.                          792,000       27,522,000
                                           ------------

Electric Utilities -- 1.4%
New England Electric
 System                         52,000        1,924,000
NIPSCO Industries,
 Inc.                          330,000       13,633,125
SCANA Corporation            1,090,600       27,060,513
                                           ------------
                                             42,617,638
                                           ------------

Electrical Equipment & Electronics -- 6.9%
AMP, Incorporated            1,213,000       50,642,750
General Electric
 Company                     1,360,000       88,910,000
Honeywell Inc.                 365,000       27,694,375
Hubbell, Incorporated
 (Class B)                     800,071       35,203,142
                                           ------------
                                            202,450,267
                                           ------------

Energy -- 5.4%
Amoco Corporation              615,000       53,466,563
Kerr-McGee
 Corporation                   360,000       22,815,000
Mobil Corporation              580,000       40,527,500
Teco Energy, Inc.              818,700       20,928,019
Unocal Corporation             574,900       22,313,306
                                           ------------
                                            160,050,388
                                           ------------

Financial Services -- 1.7%
American Express
 Company                       665,000       49,542,500
                                           ------------

Foods -- 2.9%
Archer-Daniels-Midland
 Company                       102,600        2,411,100
ConAgra, Inc.                  613,000       39,308,625
CPC International, Inc.        462,500       42,694,531
                                           ------------
                                             84,414,256
                                           ------------

Forest Products & Paper -- 2.2%
Westvaco Corporation           855,000       26,879,063
Weyerhaeuser Company           721,900       37,538,800
                                           ------------
                                             64,417,863
                                           ------------

Hardware & Tools -- 0.9%
The Stanley Works              639,000       25,560,000
                                           ------------

Healthcare -- 7.7%
Becton, Dickinson and
 Company                       850,000       43,031,250
Bristol-Myers Squibb
 Company                     1,500,000      121,500,000
Pfizer, Incorporated           184,130       22,003,535
Schering-Plough Corp.          907,200       43,432,200
                                           ------------
                                            229,966,985
                                           ------------

Industrial Distribution -- 1.1%
W.W. Grainger, Inc.            400,000       31,275,000
                                           ------------

Industrial Transportation -- 2.7%
Burlington Northern
 Santa Fe Corporation          432,200       38,843,975
Norfolk Southern
 Corporation                   400,000       40,300,000
                                           ------------
                                             79,143,975
                                           ------------
</TABLE> 
                                                                     (Continued)


   The accompanying notes are an integral part of the financial statements.   43
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                              Number of
                               Shares      Market Value
                               ------      ------------
<S>                           <C>          <C>   
Insurance -- 6.9%
Jefferson-Pilot
 Corporation                   437,000     $ 30,535,375
Marsh & McLennan
 Companies, Inc.               909,800       64,936,975
MBIA, Inc.                     435,000       49,073,438
SAFECO Corporation           1,240,000       57,892,500
                                           ------------
                                            202,438,288
                                           ------------

Machinery & Components -- 2.0%
Dover Corporation              540,000       33,210,000
Parker-Hannifin
 Corporation                   400,000       24,275,000
                                           ------------
                                             57,485,000
                                           ------------

Manufacturing -- 0.7%
Pall Corporation               830,500       19,309,117
                                           ------------

Miscellaneous -- 1.8%
Harsco Corporation             600,000       24,300,000
Minnesota Mining &
 Manufacturing
 Company                       279,700       28,529,400
                                           ------------
                                             52,829,400
                                           ------------

Oil & Gas -- 2.2%
ENI SPA, Sponsored
 ADR                           266,700       15,168,563
Occidental Petroleum
 Corporation                 1,067,000       26,741,688
Union Pacific
 Resources Group Inc.          897,700       22,330,288
                                           ------------
                                             64,240,539
                                           ------------

Photography -- 1.1%
Eastman Kodak
 Company                       413,600       31,743,800
                                           ------------

Publishing & Printing -- 2.3%
The McGraw-Hill
 Companies, Inc.               740,000       43,521,250
R.R. Donnelley & Sons
 Company                       630,000       23,073,750
                                           ------------
                                             66,595,000
                                           ------------

Retail -- 2.5%
The May Department
 Stores Company                825,000       38,981,250
Sears Roebuck and Co.          648,100       34,835,375
                                           ------------
                                             73,816,625
                                           ------------

Retail-Grocery -- 2.6%
Albertson's, Inc.            1,414,000       51,611,000
American Stores
 Company                       518,300       25,591,063
                                           ------------
                                             77,202,063
                                           ------------

Telecommunications -- 1.4%
GTE Corporation                965,800     $ 42,374,475
                                           ------------

Telephone Utilities -- 2.5%
Ameritech Corporation          372,000       25,272,750
Frontier Corporation         1,319,000       26,297,563
Southern New England
 Telecommunications
 Corporation                   531,000       20,642,625
                                           ------------
                                             72,212,938
                                           ------------

Tobacco -- 2.5%
Fortune Brands, Inc.           735,000       27,424,688
Gallaher Group PLC,
 ADR ++                        735,000       13,551,563
UST Inc.                     1,126,800       31,268,700
                                           ------------
                                             72,244,951
                                           ------------

TOTAL EQUITIES                           $2,800,392,230
                                         --------------
(Cost $1,787,766,969)
</TABLE> 

<TABLE> 
<CAPTION> 
                            Principal
                             Amount        Market Value
                             ------        ------------   
<S>                        <C>             <C> 
SHORT-TERM INVESTMENTS -- 4.9%
Commercial Paper
Abbott Laboratories
 5.460% 7/10/1997          $ 5,000,000     $  4,993,175
Abbott Laboratories
 5.470% 7/09/1997            2,015,000        2,012,551
American International
 Group, Inc.
 5.520% 7/23/1997           10,000,000        9,966,267
Anheuser-Busch
 Companies, Inc.
 5.540% 7/07/1997            7,000,000        6,993,537
Anheuser-Busch
 Companies, Inc.
 6.000% 7/01/1997            7,766,000        7,766,000
AT & T Corporation
 5.240% 7/18/1997            3,000,000        2,992,577
AT & T Corporation
 5.240% 8/21/1997            8,000,000        7,940,613
Coca-Cola Company,
 The
 5.490% 8/22/1997           13,000,000       12,896,910
Eastman Kodak
 Company
 5.525% 7/21/1997            9,338,000        9,309,338
E. I. du Pont de
 Nemours and Company
 5.490% 8/11/1997           $7,000,000     $  6,956,233
E. I. du Pont de
 Nemours and Company
 5.610% 11/17/1997           1,419,000        1,387,496
E. I. du Pont de
 Nemours and Company
 5.630% 11/12/1997           4,000,000        3,914,389
Ford Motor Credit
 Company
 5.580% 12/09/1997           5,000,000        4,871,424
Ford Motor Credit
 Company
 5.630% 12/05/1997           5,000,000        4,874,618
General Electric
 Capital Corporation
 5.580% 12/08/1997           4,000,000        3,897,778
IBM Credit
 Corporation
 5.520% 8/25/1997            3,000,000        2,974,700
IBM Credit
 Corporation
 5.520% 7/22/1997            8,000,000        7,974,238
J.P. Morgan & Co.,
 Inc.
 5.510% 7/28/1997            7,000,000        6,971,073
J.P. Morgan & Co.,
 Inc.
 5.530% 7/25/1997            5,872,000        5,850,352
PepsiCo, Inc
 5.500% 7/14/1997           10,000,000        9,980,139
Procter & Gamble
 Company, The
 5.520% 9/17/1997            5,000,000        4,937,708
Toys "R" Us, Inc.
 5.480% 7/09/1997            7,015,000        7,006,457
Weyerhaeuser Company
 5.530% 8/06/1997            8,354,000        8,307,802
                                           ------------

TOTAL SHORT-TERM
INVESTMENTS                                 144,775,375
                                           ------------
(Cost $144,789,861)

TOTAL INVESTMENTS -- 100.2%               2,945,167,605
(Cost $1,932,556,830)+

Other Assets/
(Liabilities) - (0.2%)                       (5,563,503)
                                           ------------

NET ASSETS -- 100.0%                     $2,939,604,102
                                         --------------
</TABLE> 

Notes to Portfolio of Investments

+Aggregate cost for Federal tax purposes (Note 7)

++Non-Income producing security


44   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

Statement of                                                                                              June 30, 1997       
Assets and                                                                                                 (Unaudited)   
Liabilities                                                                                             -----------------
                     <S>                                                                                <C>    
                     Assets:                                                                                             
                        Investments, at value (cost $1,787,766,969) (Note 2) ......................     $   2,800,392,230 
                        Short-term investments, at value (cost $144,789,861) (Note 2) .............           144,775,375 
                                                                                                        -----------------
                          Total Investments .......................................................         2,945,167,605 
                        Cash.......................................................................                   925 
                        Receivables from:                                                                                 
                          Investments sold ........................................................             9,540,659 
                          Fund shares sold ........................................................             7,984,118 
                          Interest and dividends ..................................................             5,038,019 
                                                                                                        -----------------
                             Total assets .........................................................         2,967,731,326 
                                                                                                        -----------------
                                                                                                                          
                     Liabilities:                                                                                         
                        Payables for:                                                                                     
                          Investments purchased ...................................................            25,412,280 
                          Fund shares redeemed ....................................................             1,309,733 
                          Directors' fees and expenses (Note 3) ...................................                 5,317 
                          Affiliates (Note 3):                                                                            
                             Investment management fees ...........................................             1,109,735 
                             Administration fees ..................................................               223,358 
                             Service and distribution fees ........................................                   333 
                        Accrued expenses and other liabilities ....................................                66,468 
                                                                                                        -----------------
                             Total liabilities ....................................................            28,127,224 
                                                                                                        -----------------
                        Net assets ................................................................     $   2,939,604,102 
                                                                                                        =================
                     Net assets consist of:                                                                               
                        Paid-in capital ...........................................................     $   1,796,583,622 
                        Undistributed net investment income .......................................            26,785,147 
                        Accumulated net realized gain on investments ..............................           103,624,558 
                        Net unrealized appreciation on investments ................................         1,012,610,775 
                                                                                                        -----------------
                                                                                                        $   2,939,604,102
                                                                                                        =================
                     Net assets:                                                                                         
                        Class 1 ...................................................................     $         178,268 
                                                                                                        =================
                        Class 2 ...................................................................     $         180,894 
                                                                                                        =================
                        Class 3 ...................................................................     $         182,261 
                                                                                                        =================
                        Class 4 ...................................................................     $   2,939,062,679 
                                                                                                        =================
                     Shares outstanding:                                                                                  
                        Class 1 ...................................................................                10,640 
                                                                                                        =================
                        Class 2 ...................................................................                10,740 
                                                                                                        =================
                        Class 3 ...................................................................                10,793 
                                                                                                        =================
                        Class 4 ...................................................................           174,174,339 
                                                                                                        =================
                     Net asset value, offering price and                                                                  
                     redemption price per share:                                                                          
                        Class 1 ...................................................................     $           16.75 
                                                                                                        =================
                        Class 2 ...................................................................     $           16.84 
                                                                                                        =================
                        Class 3 ...................................................................     $           16.89 
                                                                                                        =================
                        Class 4 ...................................................................     $           16.87 
                                                                                                        ================= 
</TABLE> 

   The accompanying notes are an integral part of the financial statements.   45
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statement of Operations

<TABLE>
<CAPTION>
                                                                        Six months ended
                                                                         June 30, 1997
                                                                          (Unaudited)
                                                                        ----------------
<S>                                                                     <C>
Investment income:
   Dividends........................................................    $     30,007,475
   Interest.........................................................           3,288,686
                                                                        ----------------
     Total investment income........................................          33,296,161
                                                                        ----------------

Expenses (Note 1):
   Investment management fees (Note 3)..............................           5,958,697
   Custody fees.....................................................             109,941
   Audit and legal fees.............................................              33,755
   Directors' fees (Note 3).........................................              10,526
   Fees waived by the investment manager (Note 3)...................            (391,015)
                                                                        ----------------
                                                                               5,721,904

   Administration fees (Note 3):
     Class 1........................................................                 471
     Class 2........................................................                 437
     Class 3........................................................                 276
     Class 4........................................................           1,198,138
   Distribution and service fees (Note 3):
     Class 1........................................................                 527
     Class 2........................................................                 123
                                                                        ----------------
       Net expenses.................................................           6,921,876
                                                                        ----------------
       Net investment income........................................          26,374,285
                                                                        ----------------

Realized and unrealized gain (loss):
   Net realized gain on investment transactions.....................          89,446,203
   Net change in unrealized appreciation (depreciation)
     on investments.................................................         300,752,849
                                                                        ----------------
       Net realized and unrealized gain.............................         390,199,052
                                                                        ----------------
   Net increase in net assets resulting from operations.............    $    416,573,337
                                                                        ================
</TABLE>

46 The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Statements of 
Changes in Net 
Assets
<TABLE>
<CAPTION>
                                                                       Six months ended
                                                                         June 30, 1997          Year ended
                                                                          (Unaudited)        December 31, 1996
                                                                       ----------------      ----------------
<S>                                                                    <C>                   <C>
Increase (Decrease) in Net Assets:
Operations:
      Net investment income.........................................   $     26,374,285      $     55,712,269
      Net realized gain on investment transactions..................         89,446,203            74,040,546
      Net change in unrealized appreciation (depreciation)
       on investments...............................................        300,752,849           296,454,766
                                                                       ----------------      ----------------
       Net increase in net assets resulting from operations.........        416,573,337           426,207,581
                                                                       ----------------      ----------------

Distributions to shareholders (Note 2):
      From net investment income:
      Class 1.......................................................                 --                (1,849)
      Class 2.......................................................                 --                (2,628)
      Class 3.......................................................                 --                (3,152)
      Class 4.......................................................                 --           (55,920,646)
                                                                       ----------------      ----------------
       Total distributions from net investment income...............                 --           (55,928,275)
                                                                       ----------------      ----------------
      From net realized gains:
      Class 1.......................................................                 --                (4,035)
      Class 2.......................................................                 --                (4,054)
      Class 3.......................................................                 --                (4,061)
      Class 4.......................................................                 --           (64,653,761)
                                                                       ----------------      ----------------
       Total distributions from net realized gains..................                 --           (64,665,911)
                                                                       ----------------      ----------------

Net fund share transactions (Note 5):
      Class 1.......................................................                 --                 5,884
      Class 2.......................................................                 --                 6,682
      Class 3.......................................................                 --                 7,213
      Class 4.......................................................         36,822,530            54,936,919
                                                                       ----------------      ----------------
       Increase in net assets from net fund share transactions......         36,822,530            54,956,698
                                                                       ----------------      ----------------
      Total increase in net assets..................................        453,395,867           360,570,093

Net assets:
      Beginning of period...........................................      2,486,208,235         2,125,638,142
                                                                       ----------------      ----------------
      End of period (including undistributed net investment income
       of $26,785,147 and $410,862, respectively)...................   $  2,939,604,102      $  2,486,208,235
                                                                       ================      ================
</TABLE>


   The accompanying notes are an integral part of the financial statements.
                                                                              47
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE>     
<CAPTION> 
                                                                                           Class 1
                                                                                           -------
                                                              Six months ended
                                                                  6/30/97        Year ended       Year ended      Period ended
                                                                (Unaudited)       12/31/96         12/31/95        12/31/94**
                                                                ----------       ----------       ----------      -----------
<S>                                                             <C>              <C>              <C>             <C> 
Net asset value, beginning of period                            $    14.44       $    12.63       $     9.92      $     10.00
                                                                ----------       ----------       ----------      -----------
Income (loss) from investment operations:
  Net investment income                                               0.06             0.17             0.18             0.04
  Net realized and unrealized gain (loss) on investments              2.25             2.21             2.81            (0.08)
                                                                ----------       ----------       ----------      -----------
   Total income (loss) from investment operations                     2.31             2.38             2.99            (0.04)
                                                                ----------       ----------       ----------      -----------
Less distributions to shareholders:
  From net investment income                                            --            (0.18)           (0.18)           (0.04)
  From net realized gains                                               --            (0.39)           (0.10)              --
                                                                ----------       ----------       ----------      -----------
   Total distributions                                                  --            (0.57)           (0.28)           (0.04)
                                                                ----------       ----------       ----------      -----------
Net asset value, end of period                                  $    16.75       $    14.44       $    12.63      $      9.92
                                                                ==========       ==========       ==========      ===========
Total Return                                                         16.00%           18.83%           30.10%           (0.39)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                   $178             $154             $129              $99
  Net expenses to average daily net assets#                           1.66%*           1.65%            1.65%            1.65%*
  Net investment income to average daily net assets                   0.85%*           1.28%            1.58%            2.31%*
  Portfolio turnover rate                                                9%              13%              16%               3%

  Average broker commission rate (a)                            $   0.0593       $    .0585               N/A              N/A
   #Computed after giving effect to the voluntary 
    partial waiver of management fee by MassMutual, 
    which terminated May 1, 1997. Without this 
    partial waiver of fees by MassMutual, the ratio 
    of expenses to average daily net assets would 
    have been:                                                        1.69%*           1.69%            1.70%            1.71%*
<CAPTION> 

                                                                                           Class 2
                                                                                           ------- 
                                                              Six months ended
                                                                  6/30/97        Year ended       Year ended      Period ended
                                                                (Unaudited)       12/31/96         12/31/95        12/31/94**
                                                                ----------       ----------       ----------      -----------
<S>                                                             <C>              <C>              <C>             <C> 
Net asset value, beginning of period                            $    14.47       $    12.65       $     9.93      $     10.00
                                                                ----------       ----------       ----------      -----------
Income (loss) from investment operations:
  Net investment income                                               0.11             0.25             0.24             0.05
  Net realized and unrealized gain (loss) on investments              2.26             2.22             2.82            (0.07)
                                                                ----------       ----------       ----------      -----------
   Total income (loss) from investment operations                     2.37             2.47             3.06            (0.02)
                                                                ----------       ----------       ----------      -----------
Less distributions to shareholders:
  From net investment income                                            --            (0.26)           (0.24)           (0.05)
  From net realized gains                                               --            (0.39)           (0.10)              --
                                                                ----------       ----------       ----------      -----------
   Total distributions                                                  --            (0.65)           (0.34)           (0.05)
                                                                ----------       ----------       ----------      -----------
Net asset value, end of period                                  $    16.84       $    14.47       $    12.65      $      9.93
                                                                ==========       ==========       ==========      ===========
Total Return                                                         16.38%           19.46%           30.80%           (0.22)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                   $181             $155             $130              $99
  Net expenses to average daily net assets#                           1.11%*           1.10%            1.10%            1.10%*
  Net investment income to average daily net assets                   1.40%*           1.82%            2.13%            2.86%*
  Portfolio turnover rate                                                9%              13%              16%               3%
  Average broker commission rate (a)                            $   0.0593       $   0.0585               N/A              N/A
   #Computed after giving effect to the voluntary 
    partial waiver of management fee by MassMutual, 
    which terminated May 1, 1997. Without this 
    partial waiver of fees by MassMutual, the ratio 
    of expenses to average daily net assets would 
    have been:                                                        1.14%*           1.14%            1.15%            1.16%*
</TABLE>      

*Annualized 
**For the period from October 3, 1994 (commencement of operations)
through December 31, 1994. 
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.


   The accompanying notes are an integral part of the financial statements.
48
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Value Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE>     
<CAPTION> 
                                                                                           Class 3
                                                                                           -------
                                                              Six months ended
                                                                  6/30/97        Year ended       Year ended      Period ended
                                                                (Unaudited)       12/31/96         12/31/95       12/31/94**
                                                                ----------       ----------       ----------      -----------
<S>                                                             <C>              <C>              <C>             <C> 
Net asset value, beginning of period                            $    14.49       $    12.66       $     9.93      $    10.00
                                                                ----------       ----------       ----------      -----------
Income (loss) from investment operations:
  Net investment income                                               0.13             0.30             0.28            0.05
  Net realized and unrealized gain (loss) on investments              2.27             2.23             2.83           (0.07)
                                                                ----------       ----------       ----------      -----------
   Total income (loss) from investment operations                     2.40             2.53             3.11           (0.02)
                                                                ----------       ----------       ----------      -----------
Less distributions to shareholders:
  From net investment income                                            --            (0.31)           (0.28)          (0.05)
  From net realized gains                                               --            (0.39)           (0.10)             --
                                                                ----------       ----------       ----------      -----------
   Total distributions                                                  --            (0.70)           (0.38)          (0.05)
                                                                ----------       ----------       ----------      -----------
Net asset value, end of period                                  $    16.89       $    14.49       $    12.66      $     9.93
                                                                ==========       ==========       ==========      ===========
Total Return                                                         16.56%           19.92%           31.30%          (0.18)%

Ratios / Supplemental Data:                                         
  Net assets, end of period (000's)                                   $182             $156             $130             $99
  Net expenses to average daily net assets#                           0.77%*           0.75%            0.75%           0.75%*
  Net investment income to average daily net assets                   1.75%*           2.17%            2.48%           3.23%*
  Portfolio turnover rate                                                9%              13%              16%              3%
  Average broker commission rate (a)                            $   0.0593       $   0.0585               N/A             N/A
   #Computed after giving effect to the voluntary 
    partial waiver of management fee by MassMutual, 
    which terminated May 1, 1997. Without this 
    partial waiver of fees by MassMutual, the 
    ratio of expenses to average daily net assets 
    would have been:                                                  0.79%*           0.80%            0.80%           0.81%*

<CAPTION> 
                                                                                           Class 4
                                                                                           -------
                                                              Six months ended
                                                                  6/30/97        Year ended       Year ended      Period ended
                                                                (Unaudited)       12/31/96         12/31/95       12/31/94**
                                                                ----------       ----------       ----------      -----------
<S>                                                             <C>              <C>              <C>             <C> 
Net asset value, beginning of period                            $    14.46       $    12.63       $     9.91      $    10.00
                                                                ----------       ----------       ----------      -----------
Income (loss) from investment operations:
  Net investment income                                               0.15             0.34             0.31            0.08
  Net realized and unrealized gain (loss) on investments              2.26             2.22             2.82           (0.09)
                                                                ----------       ----------       ----------      -----------
   Total income (loss) from investment operations                     2.41             2.56             3.13           (0.01)
                                                                ----------       ----------       ----------      -----------
Less distributions to shareholders:                               
  From net investment income                                           --            (0.34)           (0.31)          (0.08)
  From net realized gains                                              --            (0.39)           (0.10)             --
                                                                ----------       ----------       ----------      -----------
   Total distributions                                                  --            (0.73)           (0.41)          (0.08)
                                                                ----------       ----------       ----------      -----------
Net asset value, end of period                                  $    16.87       $    14.46       $    12.63      $     9.91
                                                                ==========       ==========       ==========      ===========
Total Return@                                                        16.67%           20.24%           31.54%          (0.10)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                             $2,939,063       $2,485,743       $2,125,248      $1,563,563
  Net expenses to average daily net assets#                         0.5226%*         0.5067%          0.5067%         0.5067%*
  Net investment income to average daily net assets                   1.99%*           2.42%            2.72%           3.20%*
  Portfolio turnover rate                                                9%              13%              16%              3%
  Average broker commission rate (a)                            $   0.0593       $   0.0585               N/A             N/A
   #Computed after giving effect to the voluntary 
    partial waiver of management fee by MassMutual, 
    which terminated May 1, 1997. Without this 
    partial waiver of fees by MassMutual, the 
    ratio of expenses to average daily net assets 
    would have been:                                                0.5521%*         0.5534%          0.5528%          0.5681%*
</TABLE>      

*Annualized

**For the period from October 3, 1994 (commencement of operations) through
December 31, 1994.

(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.

@  Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth  in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.


   The accompanying notes are an integral part of the financial statements.
                                                                              49
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 

                            Number of
                             Shares        Market Value
                             ------        ------------
<S>                         <C>            <C>     
EQUITIES -- 92.7%
Air Transportation -- 1.3%
Atlantic Southeast
 Airlines, Inc.                247,800     $  7,093,275
                                           ------------

Apparel, Textiles & Shoes -- 1.1%
Culp, Inc.                      55,000          996,875
Unitog Company                 203,500        5,494,500
                                           ------------
                                              6,491,375
                                           ------------

Automotive & Parts -- 6.1%
Amcast Industrial
 Corporation                   228,100        5,702,500
Excel Industries, Inc.         355,100        6,924,450
Keystone Automotive
 Industries, Inc. ++           250,000        4,250,000
Myers Industries, Inc.         321,154        5,419,469
Titan Wheel
 International, Inc.           698,500       12,311,063
                                           ------------
                                             34,607,482
                                           ------------

Banking, Savings & Loans -- 12.1%
Astoria Financial
 Corporation                   245,900       11,680,250
Bank United Corp.
 Class A                       173,200        6,581,600
CCB Financial
 Corporation                   139,900       10,230,188
First Colorado
 Bancorp, Inc.                 284,200        5,435,325
Keystone Financial,
 Inc.                          221,150        6,910,938
One Valley Bancorp of
 West Virginia, Inc.           183,750        7,717,500
Security Capital
 Corporation                   102,800        9,714,600
Sovereign Bancorp,
 Inc.                          431,080        6,573,966
St. Paul Bancorp, Inc.          11,000          364,375
Webster Financial
 Corporation                    75,500        3,435,250
                                           ------------
                                             68,643,992
                                           ------------

Beverages -- 1.3%
The Robert Mondavi
 Corporation ++                158,400     $  7,484,400
                                           ------------

Building Materials & Construction -- 0.6%
Apogee Enterprises,
 Inc.                          153,600        3,302,400
                                           ------------

Chemicals -- 1.9%
OM Group, Inc.                 319,800       10,593,375
                                           ------------

Communications -- 2.1%
True North
 Communications, Inc.          483,500       11,966,625
                                           ------------

Computer Services -- 0.9%
Pomeroy Computer
 Resources, Inc. ++            200,000        4,950,000
                                           ------------

Computers & Office Equipment -- 1.3%
Cognex Corporation ++          285,900        7,576,350
                                           ------------

Diversified Operations -- 0.3%
SPS Technologies, Inc. ++       25,000        1,768,750
                                           ------------

Electrical Equipment & Electronics -- 7.9%
AFC Cable Systems,
 Inc. ++                       147,500        3,982,500
Belden, Inc.                   293,700       10,004,156
Dallas Semiconductor
 Corporation                   345,800       13,572,650
Teleflex, Incorporated         256,200        8,006,250
Wyle Laboratories              227,200        8,974,400
                                           ------------
                                             44,539,956
                                           ------------

Energy -- 1.0%
NGC Corporation                176,041        2,717,633
TNP Enterprises, Inc.          137,100        3,179,006
                                           ------------
                                              5,896,639
                                           ------------

Financial Services -- 0.1%
Eaton Vance Corp.               25,900          720,344
                                           ------------

Foods -- 1.4%
JP Foodservice, Inc. ++         42,800     $  1,227,825
Midwest Grain
 Products, Inc. ++              49,850          660,513
Morrison Health Care,
 Inc.                          367,200        5,852,250
                                           ------------
                                              7,740,588
                                           ------------

Forest Products & Paper -- 2.1%
Mosinee Paper
 Corporation                   218,749        5,359,351
Wausau Paper Mills
 Company                       357,775        6,753,003
                                           ------------
                                             12,112,354
                                           ------------

Gas Distribution -- 1.6%
WICOR, Inc.                    237,300        9,239,869
                                           ------------

Industrial Transportation -- 3.2%
ABC Rail Products
 Corporation ++                445,000        7,620,625
Arnold Industries, Inc.        371,300        6,312,100
The Greenbrier
 Companies, Inc.               385,300        4,358,706
                                           ------------
                                             18,291,431
                                           ------------

Insurance -- 8.2%
ALLIED Group,
 Incorporated                  271,950       10,334,100
Capital RE Corp.               205,300       10,983,550
Executive Risk, Inc.           172,900        8,990,800
Frontier Insurance
 Group, Inc.                   190,680       12,346,530
Nationwide Financial
 Services, Inc. Class A        152,000        4,037,500
                                           ------------
                                             46,692,480
                                           ------------

Leasing Companies -- 1.9%
Rollins Truck Leasing
 Company                       715,750       10,646,781
                                           ------------
</TABLE> 

                                                                     (Continued)

52      The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 

                            Number of
                             Shares        Market Value
                             ------        ------------
<S>                         <C>            <C> 
Machinery & Components -- 14.0%
Columbus McKinnon
 Corporation                   266,500     $  5,063,500
DT Industries, Inc.            269,200        9,623,900
Graco, Incorporated            427,000       12,863,375
Greenfield Industries,
 Inc.                          413,200       11,156,400
Hardinge, Inc.                 224,300        6,560,775
Helix Technology
 Corporation                   247,300       10,015,650
OmniQuip
 International, Inc. ++        292,600        6,766,375
Regal-Beloit
 Corporation                   297,750        7,797,328
Roper Industries, Inc.         171,100        8,875,813
                                           -------------
                                             78,723,116
                                           -------------

Medical Supplies -- 0.9%
Invacare Corporation           223,800        5,231,325
                                           -------------

Metals & Mining -- 2.2%
Reliance Steel &
 Aluminum Company              489,300       12,721,800
                                           -------------

Miscellaneous -- 2.0%
Trimas Corporation             407,100       11,449,688
                                           -------------

Miscellaneous Distributor Wholesale -- 1.9%
Hughes Supply, Inc.            266,600       10,664,000
                                           -------------

Office Products -- 0.8%
American Business
 Products, Inc.                197,700        4,497,675
                                           -------------

Oil & Gas -- 2.2%
The Houston
 Exploration Company ++        261,800        4,074,263
Parker Drilling
 Company ++                    400,000        4,450,000
Stone Energy
 Corporation ++                138,800        3,799,650
                                           -------------
                                             12,323,913
                                           -------------

Other Services -- 2.9%
Analysts International
 Corporation                   340,200       11,396,700
Landauer, Inc.                 206,200        4,781,263
                                           -------------
                                             16,177,963
                                           -------------

Publishing & Printing -- 7.6%
Banta Corporation              284,250        7,710,281
Harte Hanks
 Communications, Inc.          398,300       11,749,850
Houghton Mifflin
 Company                       173,200       11,561,100
McClatchy
 Newspapers, Inc.              409,250       12,021,719
                                           -------------
                                             43,042,950
                                           -------------

Retail -- 1.8%
Arbor Drugs, Inc.              502,250       10,107,781
                                           -------------

TOTAL EQUITIES                             $525,298,677
                                           -------------
(Cost $360,676,948)

                            Principal
                             Amount        Market Value
                             ------        ------------

SHORT-TERM INVESTMENTS -- 7.7%
Commercial Paper
Abbott Laboratories
 5.470% 7/09/1997           $2,315,000     $  2,312,186
American International
 Group, Inc.
 6.100% 7/01/1997            4,000,000        4,000,000
AT & T Corporation
 5.430% 7/10/1997            4,000,000        3,994,570
Eastman Kodak
 Company
 5.500% 7/10/1997            2,644,000        2,640,364
E. I. du Pont de
 Nemours and Company
 6.000% 7/01/1997            4,000,000        4,000,000
Ford Motor Credit
 Company
 5.520% 7/31/1997            4,000,000        3,981,600
IBM Credit
 Corporation
 5.510% 7/11/1997            4,000,000        3,993,878
J.P. Morgan & Co.,
 Inc.
 5.510% 7/28/1997            4,000,000        3,983,470
PepsiCo, Inc
 5.500% 7/14/1997            2,000,000        1,996,028
PepsiCo, Inc
 6.050% 7/01/1997            2,016,000        2,016,000
Transamerica
 Corporation
 6.200% 7/01/1997            4,000,000        4,000,000
Walt Disney Company,
 The
 6.100% 7/01/1997            4,000,000        4,000,000
Weyerhaeuser Company
 5.540% 7/23/1997            2,500,000        2,491,536
                                           -------------

TOTAL SHORT-TERM
INVESTMENTS                                  43,409,632
                                           -------------
(At Amortized Cost)

TOTAL INVESTMENTS -- 100.4%                 568,708,309
(Cost $404,086,580) +

Other Assets/
(Liabilities) - (0.4%)                       (2,545,251)
                                           -------------

NET ASSETS -- 100.0%                       $566,163,058
                                           -------------
</TABLE> 



Notes to Portfolio of Investments 
+  Aggregate cost for Federal tax purposes (Note 7)

++ Non-income producing security.


   The accompanying notes are an integral part of the financial statements.   53
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

Statement of                                                                         June 30, 1997
Assets and                                                                            (Unaudited) 
Liabilities                                                                         ----------------
                   <S>                                                              <C> 
                   Assets:                                                                                                      
                         Investments, at value (cost $360,676,948) (Note 2) .....   $    525,298,677                            
                         Short-term investments, at amortized cost (Note 2) .....         43,409,632                            
                                                                                    ----------------
                           Total Investments ....................................        568,708,309                            
                         Cash ...................................................                839                            
                         Receivables from:                                                                                      
                           Investments sold .....................................            446,235                            
                           Fund shares sold .....................................          1,952,959                            
                           Interest and dividends ...............................            553,997                            
                                                                                    ----------------
                              Total assets ......................................        571,662,339                            
                                                                                    ----------------
                                                                                                                                
                   Liabilities:                                                                                                 
                         Payables for:                                                                                          
                           Investments purchased ................................          4,764,297                            
                           Fund shares redeemed .................................            421,324                            
                           Directors' fees and expenses (Note 3) ................              5,317                            
                           Affiliates (Note 3):                                                                                 
                              Investment management fees ........................            254,735                            
                              Administration fees ...............................             40,085                            
                              Service and distribution fees .....................                302                            
                         Accrued expenses and other liabilities .................             13,221                            
                                                                                    ----------------
                              Total liabilities .................................          5,499,281                            
                                                                                    ----------------
                         Net assets .............................................   $    566,163,058                            
                                                                                    ================
                   Net assets consist of:                                                                                       
                         Paid-in capital ........................................   $    372,384,505                            
                         Undistributed net investment income ....................          2,631,716                            
                         Accumulated net realized gain on investments ...........         26,525,108                            
                         Net unrealized appreciation on investments .............        164,621,729                            
                                                                                    ----------------
                                                                                    $    566,163,058                            
                                                                                    ================
                   Net assets:                                                                                                
                         Class 1 ................................................   $        164,885                          
                                                                                    ================
                         Class 2 ................................................   $        167,340                          
                                                                                    ================
                         Class 3 ................................................   $        168,863                          
                                                                                    ================
                         Class 4 ................................................   $    565,661,970                          
                                                                                    ================
                   Shares outstanding:                                                                                        
                         Class 1 ................................................             10,666                          
                                                                                    ================
                         Class 2 ................................................             10,767                          
                                                                                    ================
                         Class 3 ................................................             10,837                          
                                                                                    ================
                         Class 4 ................................................         36,265,588                          
                                                                                    ================
                   Net asset value, offering price and                                                                        
                   redemption price per share:                                                                                
                         Class 1 ................................................   $          15.46                          
                                                                                    ================
                         Class 2 ................................................   $          15.54                          
                                                                                    ================
                         Class 3 ................................................   $          15.58                          
                                                                                    ================
                         Class 4 ................................................   $          15.60                          
                                                                                    ================
</TABLE> 

54   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)            
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION>                                                                                                  
                                                                                                                              
                                                                                                    Six months ended          
                                                                                                      June 30, 1997           
Statement of                                                                                           (Unaudited)            
Operations                                                                                           -------------            
                   Investment income:                                                                                         
                   <S>                                                                               <C>                      
                         Dividends ..............................................................    $   3,447,513            
                         Interest ...............................................................          500,472            
                                                                                                     -------------
                           Total investment income                                                   $   3,947,985    
                                                                                                     -------------
                   Expenses (Note 1):                                                                                         
                         Investment management fees (Note 3) ....................................        1,324,751            
                         Custody fees ...........................................................           23,791            
                         Audit and legal fees ...................................................            6,172            
                         Directors' fees (Note 3) ...............................................           10,526            
                         Fees waived by the investment manager (Note 3) .........................          (65,671)           
                                                                                                     -------------
                                                                                                         1,299,569            
                         Administration fees (Note 3):                                                                        
                           Class 1 ..............................................................              417            
                           Class 2 ..............................................................              386            
                           Class 3 ..............................................................              242            
                           Class 4 ..............................................................          207,434            
                         Distribution and service fees (Note 3):                                                              
                           Class 1 ..............................................................              473            
                           Class 2 ..............................................................              111            
                                                                                                     -------------
                            Net expenses ........................................................        1,508,632            
                                                                                                     -------------
                            Net investment income ...............................................        2,439,353            
                                                                                                     -------------
                   Realized and unrealized gain (loss):                                                                       
                            Net realized gain on investment transactions ........................       21,552,734              
                            Net change in unrealized appreciation (depreciation) on                                             
                              investments .......................................................       53,212,161              
                                                                                                     -------------
                            Net realized and unrealized gain ....................................       74,764,895              
                                                                                                     -------------
                         Net increase in net assets resulting from operations ...................    $  77,204,248              
                                                                                                     =============
                   </TABLE>                                       

   The accompanying notes are an integral part of the financial statements.   55
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)         
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 
                                                                                         Six months ended          
Statements of                                                                              June 30, 1997        Year ended     
Changes in Net                                                                              (Unaudited)      December 31, 1996 
Assets                                                                                   ----------------    -----------------
                   <S>                                                                   <C>                 <C> 
                   Increase (Decrease) in Net Assets:                                                                             
                   Operations:                                                                                                    
                         Net investment income ......................................    $      2,439,353    $      10,013,929  
                         Net realized gain on investment transactions ...............          21,552,734           15,188,213  
                         Net change in unrealized appreciation (depreciation) 
                          on investments ............................................          53,212,161           63,151,095  
                                                                                         ----------------    -----------------
                          Net increase in net assets resulting from operations ......          77,204,248           88,353,237  
                                                                                         ----------------    -----------------
                   Distributions to shareholders (Note 2):                                                                      
                         From net investment income:                                                                            
                         Class 1 ....................................................                  --               (1,430)    
                         Class 2 ....................................................                  --               (2,382)  
                         Class 3 ....................................................                  --               (2,845)  
                         Class 4 ....................................................                  --           (9,914,239)  
                                                                                         ----------------    -----------------
                          Total distributions from net investment income ............                  --           (9,920,896)  
                                                                                         ----------------    -----------------
                         From net realized gains:                                                                               
                         Class 1 ....................................................                  --               (3,230)  
                         Class 2 ....................................................                  --               (3,240)  
                         Class 3 ....................................................                  --               (3,251)  
                         Class 4 ....................................................                  --          (10,172,978)  
                                                                                         ----------------    -----------------
                          Total distributions from net realized gains ...............                  --          (10,182,699)  
                                                                                         ----------------    -----------------
                   Net fund share transactions (Note 5):                                                                          
                         Class 1 ....................................................                  --              (49,286)  
                         Class 2 ....................................................                  --                5,622  
                         Class 3 ....................................................                  --                6,096  
                         Class 4 ....................................................          31,590,427            8,348,780  
                                                                                         ----------------    -----------------
                          Increase in net assets from net fund share transactions ...          31,590,427            8,311,212  
                                                                                         ----------------    -----------------
                         Total increase in net assets ...............................         108,794,675           76,560,854  
                   Net assets:                                                                                                  
                         Beginning of period ........................................         457,368,383          380,807,529    
                                                                                         ----------------    -----------------
                         End of period (including undistributed net investment income                                           
                          of $2,631,716 and $192,363, respectively) .................    $    566,163,058    $     457,368,383  
                                                                                         ================    =================
</TABLE> 

56   The accompanying notes are an intrgral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

Financial Highlights
(For a share outstanding throughout each period)
                                                                                                 Class 1
                                                                                                 -------
                                                                 Six months ended
                                                                      6/30/97          Year ended       Year ended    Period ended
                                                                    (Unaudited)         12/31/96         12/31/95       12/31/94**
                                                                   ------------      ------------     ------------    ------------
<S>                                                                <C>               <C>              <C>             <C> 
Net asset value, beginning of period                               $      13.39      $      11.40     $       9.69    $      10.00
                                                                   ------------      ------------     ------------    ------------
Income (loss) from investment operations:
  Net investment income                                                   (0.01)             0.21             0.06            0.02
  Net realized and unrealized gain (loss) on investments                   2.08              2.23             1.74           (0.31)
                                                                   ------------      ------------     ------------    ------------
   Total income (loss) from investment operations                          2.07              2.44             1.80           (0.29)
                                                                   ------------      ------------     ------------    ------------
Less distributions to shareholders:
  From net investment income                                                 --             (0.14)           (0.09)          (0.02)
  From net realized gains                                                    --             (0.31)              --              --
                                                                   ------------      ------------     ------------    ------------
   Total distributions                                                       --             (0.45)           (0.09)          (0.02)
                                                                   ------------      ------------     ------------    ------------
Net asset value, end of period                                     $      15.46      $      13.39     $      11.40    $       9.69
                                                                   ============      ============     ============    ============
Total Return                                                              15.46%            21.43%           18.58%          (2.89)%


Ratios / Supplemental Data:
  Net assets, end of period (000's)                                        $165              $143             $172             $99
  Net expenses to average daily net assets#                                1.76%*            1.75%            1.75%           1.75%*
  Net investment income to average daily net assets                       (0.13)%*           1.56%            0.63%           1.14%*
  Portfolio turnover rate                                                    17%               28%              28%              4%
  Average broker commission rate (a)                               $     0.0543      $     0.0585               N/A             N/A

   #Computed after giving effect to the voluntary partial 
   waiver of management fee by MassMutual, which terminated 
   May 1, 1997. Without this partial waiver of fees by       
   MassMutual, the ratio of expenses to average daily net   
   assets would have been:                                                 1.79%*            1.79%            1.79%           1.81%*


<CAPTION> 
                                                                                                Class 2
                                                                                                ------- 
                                                                  Six months ended
                                                                       6/30/97         Year ended       Year ended    Period ended
                                                                     (Unaudited)        12/31/96         12/31/95       12/31/94**
                                                                   ------------      ------------     ------------    ------------
<S>                                                                <C>               <C>              <C>             <C> 
Net asset value, beginning of period                               $      13.42      $      11.44     $       9.70    $      10.00
                                                                   ------------      ------------     ------------    ------------
Income (loss) from investment operations:
  Net investment income                                                    0.03              0.22             0.13            0.03
  Net realized and unrealized gain (loss) on investments                   2.09              2.30             1.74           (0.30)
                                                                   ------------      ------------     ------------    ------------
   Total income (loss) from investment operations                          2.12              2.52             1.87           (0.27)
                                                                   ------------      ------------     ------------    ------------
Less distributions to shareholders:
  From net investment income                                                 --             (0.23)           (0.13)          (0.03)
  From net realized gains                                                    --             (0.31)              --              --
                                                                   ------------      ------------     ------------    ------------
   Total distributions                                                       --             (0.54)           (0.13)          (0.03)
                                                                   ------------      ------------     ------------    ------------
Net asset value, end of period                                     $      15.54      $      13.42     $      11.44    $       9.70
                                                                   ============      ============     ============    ============
Total Return                                                              15.80%            22.07%           19.25%          (2.72)%


Ratios / Supplemental Data:
  Net assets, end of period (000's)                                        $167              $145             $118             $99
  Net expenses to average daily net assets#                                1.21%*            1.20%            1.20%           1.20%*
  Net investment income to average daily net assets                        0.42%*            1.81%            1.19%           1.69%*
  Portfolio turnover rate                                                    17%               28%              28%              4%
  Average broker commission rate (a)                               $     0.0543      $     0.0585               N/A             N/A

   #Computed after giving effect to the voluntary partial  
   waiver of management fee by MassMutual, which terminated 
   May 1, 1997. Without this partial waiver of fees by     
   MassMutual, the ratio of expenses to average daily net  
   assets would have been:                                                 1.24%*            1.24%           1.24%            1.26%
</TABLE>                                                                  
                                                                          
*Annualized                                                               
**For the period from October 3, 1994 (commencement of operations) through
December 31, 1994.

(a)Average commission rate paid is computed by dividing the total amount of
commissions paid during the fiscal year by the total number of shares purchased
and sold during the fiscal year for which commissions were charged. For fiscal
years beginning on or after September 1, 1995, a Fund is required to disclose
its average commission rate per share for security trades on which commissions
are charged.


   The accompanying notes are an integral part of the financial statements.   57
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual Small Cap Value Equity - Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

Financial Highlights
(For a share outstanding throughout each period)
                                                                                              Class 3
                                                                                              -------  
                                                               Six months ended
                                                                    6/30/97        Year ended       Year ended      Period ended
                                                                  (Unaudited)       12/31/96         12/31/95        12/31/94**
                                                                 ------------     ------------     ------------     ------------
<S>                                                              <C>              <C>              <C>              <C> 
Net asset value, beginning of period                             $      13.44     $      11.44     $       9.70     $      10.00
                                                                 ------------     ------------     ------------     ------------
Income (loss) from investment operations:
  Net investment income                                                  0.05             0.27             0.16             0.03
  Net realized and unrealized gain (loss) on investments                 2.09             2.31             1.74            (0.30)
                                                                 ------------     ------------     ------------     ------------
   Total income (loss) from investment operations                        2.14             2.58             1.90            (0.27)
                                                                 ------------     ------------     ------------     ------------
Less distributions to shareholders:
  From net investment income                                               --            (0.27)           (0.16)           (0.03)
  From net realized gains                                                  --            (0.31)              --               --
                                                                 ------------     ------------     ------------     ------------
   Total distributions                                                     --            (0.58)           (0.16)           (0.03)
                                                                 ------------     ------------     ------------     ------------
Net asset value, end of period                                   $      15.58     $      13.44     $      11.44     $       9.70
                                                                 ============     ============     ============     ============
Total Return                                                            15.92%           22.64%           19.62%           (2.68)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                      $169             $146             $119              $99
  Net expenses to average daily net assets#                              0.86%*           0.85%            0.85%            0.85%*
  Net investment income to average daily net assets                      0.77%*           2.16%            1.54%            2.09%*
  Portfolio turnover rate                                                  17%              28%              28%               4%
  Average broker commission rate (a)                             $     0.0543     $     0.0585               N/A              N/A

   #Computed after giving effect to the voluntary 
   partial waiver of management fee by MassMutual, 
   which terminated May 1, 1997.  Without this 
   partial waiver of fees by MassMutual, 
   the ratio of expenses to average  daily net 
   assets would have been:                                               0.89%*           0.89%            0.89%            0.91%*

<CAPTION> 
                                                                                             Class 4
                                                                                             -------
                                                                Six months ended
                                                                     6/30/97        Year ended       Year ended      Period ended
                                                                   (Unaudited)       12/31/96         12/31/95        12/31/94**
                                                                 ------------     ------------     ------------     ------------
<S>                                                              <C>              <C>              <C>              <C> 
Net asset value, beginning of period                             $      13.43     $      11.44     $       9.69     $      10.00
                                                                 ------------     ------------     ------------     ------------
Income (loss) from investment operations:
  Net investment income                                                  0.07             0.31             0.19             0.04
  Net realized and unrealized gain (loss) on investments                 2.10             2.29             1.75            (0.31)
                                                                 ------------     ------------     ------------     ------------
   Total income (loss) from investment operations                        2.17             2.60             1.94            (0.27)
                                                                 ------------     ------------     ------------     ------------
Less distributions to shareholders:
  From net investment income                                               --            (0.30)           (0.19)           (0.04)
  From net realized gains                                                  --            (0.31)              --               --
                                                                 ------------     ------------     ------------     ------------
   Total distributions                                                     --            (0.61)           (0.19)           (0.04)
                                                                 ------------     ------------     ------------     ------------
Net asset value, end of period                                   $      15.60     $      13.43     $      11.44     $       9.69
                                                                 ============     ============     ============     ============
Total Return@                                                           16.16%           22.82%           20.01%           (2.66)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                  $565,662         $456,935         $380,398         $310,789
  Net expenses to average daily net assets#                            0.6257%*         0.6110%          0.6110%          0.6110%*
  Net investment income to average daily net assets                      1.01%*           2.40%            1.78%            1.78%*
  Portfolio turnover rate                                                  17%              28%              28%               4%
  Average broker commission rate (a)                             $     0.0543     $     0.0585               N/A              N/A

   #Computed after giving effect to the voluntary 
   partial waiver of management fee by MassMutual, 
   which terminated as of May 1, 1997.  Without this 
   partial waiver of management fees by MassMutual, 
   the ratio of expenses to average daily net assets 
   would have been:                                                    0.6530%*         0.6546%          0.6553%          0.6681%* 

</TABLE> 
*Annualized
**For the period from October 3, 1994 (commencement of operations) through
December 31, 1994.
(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged.  
@  Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.


58   The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Portfolio of Investments
- --------------------------------------------------------------------------------

Portfolio of Investments (Unaudited)
June 30, 1997

<TABLE> 
<CAPTION> 

                                       Number of
                                        Shares        Market Value
                                        ------        ------------
<S>                                     <C>           <C> 

EQUITIES -- 98.9%
Aerospace & Defense -- 0.6%
Rolls-Royce PLC                        750,000        $  2,858,400
                                                     --------------

Automobiles -- 1.8%
Orbital Engine Corp.
 Ltd. ++                             2,000,000           1,318,400
Porsche AG,
 Preference                              6,000           7,816,201
                                                     --------------
                                                         9,134,601
                                                     --------------

Banking -- 9.2%
ABN Amro Holding
 NV                                    163,184           3,048,261
Banco Bradesco SA,
 Preference                        292,260,951           2,922,610
Banco de Galicia y
 Buenos Aires SA de
 CV, Sponsored ADR                     127,000           3,349,625
Bank of Scotland                         4,647              29,853
Credit Suisse Group                     80,000          10,289,120
HSBC Holdings PLC                      161,214           4,848,511
Merita Ltd., Cl A                    1,399,600           4,661,508
Societe Generale                       100,000          11,173,680
Turkiye Garanti
 Bankasi (New), ADR                    560,000           2,112,375
Unibanco-Uniao de
 Banco Brasileiros SA,
 Sponsored GDR ++                      140,000           5,197,500
                                                     --------------
                                                        47,633,043
                                                     --------------

Computer Hardware -- 3.5%
Canon, Inc.                            177,000           4,825,994
Eidos PLC ++                           225,000           2,752,335
Imagineer Co. Ltd.                     205,000           6,897,225
PT Multipolar
 Corporation                         4,866,000           3,401,821
                                                     --------------
                                                        17,877,375
                                                     --------------

Computer Software -- 4.8%
JBA Holdings PLC                       525,000           7,689,045
Misys PLC                              450,872          10,137,677
SAP AG, Preference                      33,600           6,931,969
                                                     --------------
                                                        24,758,691
                                                     --------------

Diversified Financial -- 2.9%
Cie Financiere de
 Paribas, Series A                     150,000          10,373,130
ING Groep NV                           100,000           4,618,940
                                                     --------------
                                                        14,992,070
                                                     --------------

Electric Utilities -- 0.8%
Capex SA, GDR                           76,000         $ 1,450,840
Electricidade de
 Portugal SA                            65,000           1,194,317
First Philippine
 Holdings Corp., B
 Shares                              1,250,000           1,729,750
                                                     --------------
                                                         4,374,907
                                                     --------------

Electrical Equipment & Electronics -- 5.1%
Austria Mikro
 Systeme International
 AG                                     59,150           5,017,204
Getronics NV                            40,166           1,299,695
Keyence Corp.                           22,000           3,268,373
LEM Holdings SA                         11,192           2,456,657
Rohm Co.                                40,000           4,124,788
SGS-Thomson
 Microelectronics NV ++                 58,800           4,704,000
Sony Corporation                        60,000           5,238,132
                                                     --------------
                                                        26,108,849
                                                     --------------

Energy Services & Producers -- 5.3%
Cie Generale de
 Geophysique SA ++                      54,000           5,261,166
Cie Generale de
 Geophysique SA,
 Sponsored ADR ++                      350,000           6,737,500
Coflexip SA,
 Sponsored ADR                         200,000           6,025,000
PTT Exploration & Production Public Co.
 Ltd.                                   93,000           1,349,849
Smedvig AS                             165,000           4,124,538
Smedvig AS, Series B                   160,000           3,933,984
                                                     --------------
                                                        27,432,037
                                                     --------------

Food & Beverage -- 1.2%
Hellenic Bottling Co.,
 SA                                     70,000           2,589,895
Remy Cointreau                         120,000           2,884,032
Serm Suk Public Co.
 Ltd.                                   50,000             617,640
                                                     --------------
                                                         6,091,567
                                                     --------------

Healthcare/Drugs -- 12.9%
Altana AG                               15,000        $ 16,097,243
Ares-Serono Group, Cl
 B                                       7,550          10,953,286
Biocompatibles
 International PLC ++                  483,258          10,520,043
Glaxo Wellcome PLC                     305,000           6,307,065
Novartis AG                              4,264           6,826,611
Oxigene, Inc. ++                        26,400             863,795
Takeda Chemical
 Industries Ltd.                       350,000           9,848,790
Torii Pharmaceutical
 Co. Ltd.                              228,800           5,378,585
                                                     --------------
                                                        66,795,418
                                                     --------------

Healthcare/Supplies & Services -- 2.4%
Medical Invest
 Svenska AB Class A ++                 114,300           4,582,413
Medical Invest
 Svenska AB Class B ++                  39,755           1,624,672
Nichii Gakkan
 Company                               110,000           6,152,223
                                                     --------------
                                                        12,359,308
                                                     --------------

Household Products -- 0.1%
Srithai Superware Co.
 Ltd.                                  169,000             391,421

Industrial Services -- 8.7%
Axime ++                                51,000           6,037,365
Bau Holdings AF,
 Preference                            170,611           9,267,334
Bau Holdings AG                         21,501           1,551,942
Boskalis Westminster                   351,631           6,909,408
Fugro NV                               220,000           5,670,324
Internatio-Muller NV                   102,500           3,238,231
Ordina Beheer NV ++                    208,000           3,768,648
PT Citra Marga
 Nusaphala Persada                   3,270,000           2,958,059
VBH Holding AG                         125,000           2,711,563
Vedior NV-CVA ++                       100,000           2,648,870
                                                     --------------
                                                        44,761,744
                                                     --------------

</TABLE> 

                                                                     (Continued)

The accompanying notes are an integral part of the financial statements.      61
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Portfolio of Investments (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 

                                       Number of
                                        Shares        Market Value
                                        ------        ------------
<S>                                  <C>              <C> 
Insurance -- 7.0%
Marschollek,
 Lautenschlaeger und
 Partner-VO, Non-vtg.
 Preferred Stock                        44,000        $ 10,605,241
Norwich Union PLC ++                   550,000           2,910,820
Ockham Holdings PLC                  1,000,000           1,331,400
Reinsurance Australia
 Corp. Ltd.                          2,910,000           8,741,640
Skandia Forsakrings
 AB                                    338,400          12,472,713
                                                     --------------
                                                        36,061,814
                                                     --------------

Leisure & Entertainment -- 5.1%
Lusomundo SGPS SA ++                   528,500           4,780,177
Nintendo Co. Ltd.                      255,000          21,392,970
                                                     --------------
                                                        26,173,147
                                                     --------------

Manufacturing -- 3.6%
Chargeurs
 International SA                      168,000           9,689,215
Powerscreen
 International PLC                     349,900           3,811,391
Stork NV                               123,157           5,028,550
                                                     --------------
                                                        18,529,156
                                                     --------------

Metals & Mining -- 1.6%
Cia de Minas
 Buenaventura SA,
 Sponsored ADR                         200,000           3,937,500
M. I. M. Holdings Ltd.               3,000,000           4,404,900
                                                     --------------
                                                         8,342,400
                                                     --------------

Non-Durable Household Goods -- 1.6%
Wella AG                                 2,000           1,342,872
Wella AG Preference                     10,000           6,760,268
                                                     --------------
                                                         8,103,140
                                                     --------------

Oil & Gas -- 4.1%
Belle Corp. ++                       7,500,000           2,189,250
Expro International
 Group PLC                             875,000           6,662,338
Novus Petroleum
 Limited                             2,500,000           8,521,500
Petroleo Brasileiro
 SA, Preference                     14,733,000           4,036,842
                                                     --------------
                                                        21,409,930
                                                     --------------

Real Estate -- 1.2%
Brazil Realty SA,
 GDR 144A                               62,000        $  1,537,687
IRSA Inversiones y
 Representaciones, SA                1,014,404           4,443,597
                                                     --------------
                                                         5,981,284
                                                     --------------

Retail -- 0.6%
Fila Holding SPA,
 Sponsored ADR                          58,000           1,939,375
PT Matahari Putra
 Prima                                 700,000           1,403,454
                                                     --------------
                                                         3,342,829
                                                     --------------

Specialty Retail -- 2.0%
Adidas AG                               42,200           4,722,429
FamilyMart Co.                          66,000           3,241,451
Giordano International
 Ltd.                                3,500,000           2,394,350
                                                     --------------
                                                        10,358,230
                                                     --------------

Telecommunications -- 2.8%
Korea Mobile
 Telecommunications
 Corp.                                   4,429           3,248,056
Millicom International
 Cellular SA ++                        100,000           4,775,000
Tandberg Television
 ASA ++                                300,000           2,233,350
Telecom Italia Mobile
 SpA                                 1,299,900           4,201,797
                                                     --------------
                                                        14,458,203
                                                     --------------

Telephone Utilities -- 7.8%
CPT Telefonica del
 Peru SA, Cl. B                      1,600,000           4,204,160
Telecomunicacoes
 Brasileiras SA,
 Sponsored ADR                         120,000          18,209,992
Telecomunicacoes de
 Sao Paulo SA ++                       299,993              88,048
Telecomunicacoes de
 Sao Paulo SA,
 Preference                         12,522,000           4,070,902
Telecomunicacoes do
 Rio de Janeiro SA,
 Preference                         40,357,620           6,033,464
Telefonica de Espana,
 ADS                                   150,000           4,344,855
Videsh Sanchar Nigam
 Ltd., GDR ++                          160,000           3,172,000
                                                     --------------
                                                        40,123,421
                                                     --------------

Transportation -- 2.2%
Argonaut AB-B Shares ++              1,100,000        $  1,991,550
Frontline AB ++                      1,075,000           3,684,133
MIF Ltd. ++                            391,000           5,714,773
                                                     --------------
                                                        11,390,456
                                                     --------------

TOTAL EQUITIES                                         509,843,441
                                                     --------------
(Cost $410,706,769)                      

RIGHTS -- 0.5%

Computer Hardware -- 0.4%
PT Multipolar
 Corporation ++                     10,778,060           2,216,795
                                                     --------------

Industrial Services -- 0.1%
PT Citra Marga
 Nusaphala Persada ++                3,270,000             672,839
                                                     --------------

TOTAL RIGHTS                                             2,889,634
                                                     --------------
(Cost $2,889,179)

<CAPTION> 

                                       Principal
                                        Amount        Market Value
                                        ------        ------------
<S>                                <C>                <C> 
SHORT-TERM INVESTMENTS -- 2.0%
Commercial Paper
Associates Corporation
 of North America
 6.250% 7/01/1997                  $10,500,000        $ 10,500,000
                                                     --------------

TOTAL SHORT-TERM
INVESTMENTS                                             10,500,000
                                                     --------------
(At Amortized Cost) 

TOTAL INVESTMENTS -- 101.4%                            523,233,075
(Cost $424,095,948)+

Other Assets/
(Liabilities) - (1.4%)                                  (7,059,212)
                                                     --------------

NET ASSETS -- 100.0%                                  $516,173,863
                                                     --------------

</TABLE> 

Notes to Portfolio of Investments
++Non-income producing security
+Aggregate cost for Federal tax purposes (Note 7)
ADR: American Depository Receipt
GDR: Global Depository Receipt
ADS: American Depository Shares

144A: Securities exempt from registration under rule 144A of the Securities Act
 of 1933. The Securities may be resold in transactions exempt from
 registration, normally to qualified institutional buyers.

62      The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements
- --------------------------------------------------------------------------------

<TABLE>     
<CAPTION> 

                                                                  June 30, 1997
                                                                   (Unaudited) 
                                                                 ---------------
Statement of Assets and Liabilities
<S>                                                              <C> 
Assets:
      Investments, at value (cost $413,595,948) (Note 2)......   $   512,733,075
      Short-term investments, at amortized cost (Note 2)......        10,500,000
        Total Investments.....................................       523,233,075
                                                                 ---------------
      Cash....................................................           297,491
      Foreign currency, at value (cost $3,368,844)............         3,524,157
      Receivables from:
        Investments sold......................................        11,567,046
        Fund shares sold......................................         4,045,977
        Interest and dividends................................         1,009,538
        Foreign taxes withheld................................           475,673
                                                                 ---------------
           Total assets.......................................       544,152,957
                                                                 ---------------

Liabilities:
      Payables for:
        Investments purchased.................................        24,152,987
        Open forward foreign currency contracts (Note 2)......         2,866,843
        Fund shares redeemed..................................           500,320
        Directors' fees and expenses (Note 3).................             5,318
        Affiliates (Note 3):
           Investment management fees.........................           361,138
           Administration fees................................            41,464
           Service and distribution fees......................               248
      Accrued expenses and other liabilities..................            50,776
                                                                 ---------------
           Total liabilities..................................        27,979,094
                                                                 ---------------
      Net assets..............................................   $   516,173,863
                                                                 ===============

Net assets consist of:
      Paid-in capital.........................................   $   413,449,144
      Undistributed net investment income.....................         2,786,109
      Accumulated net realized gain on investments and
        foreign currency translations.........................         3,725,014
      Net unrealized appreciation on investments, forward
        foreign currency contracts, foreign currency and
        other assets and liabilities..........................        96,213,596
                                                                 ---------------
                                                                 $   516,173,863
                                                                 ===============

Net assets:
      Class 1.................................................   $       130,571
                                                                 ===============
      Class 2.................................................   $       132,483
                                                                 ===============
      Class 3.................................................   $       133,169
                                                                 ===============
      Class 4.................................................   $   515,777,640
                                                                 ===============

Shares outstanding:
      Class 1.................................................            10,176
                                                                 ===============
      Class 2.................................................            10,281
                                                                 ===============
      Class 3.................................................            10,315
                                                                 ===============
      Class 4.................................................        39,835,590
                                                                 ===============

Net asset value, offering price and
redemption price per share:
      Class 1.................................................   $         12.83
                                                                 ===============
      Class 2.................................................   $         12.89
                                                                 ===============
      Class 3.................................................   $         12.91
                                                                 ===============
      Class 4.................................................   $         12.95
                                                                 ===============

</TABLE>      

The accompanying notes are an integral part of these financial statements.    63
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 

                                                             Six months ended
                                                               June 30, 1997
                                                                (Unaudited)
                                                             ----------------
Statement of Operations
<S>                                                          <C> 
Investment income:
      Dividends (net of withholding tax of $538,484)......   $      4,722,527
      Interest............................................            173,527
                                                             ----------------
        Total investment income...........................          4,896,054
                                                             ----------------
Expenses (Note 1):
      Investment management fees (Note 3).................          1,804,870
      Custody fees........................................            195,684
      Audit and legal fees................................              5,235
      Directors' fees (Note 3)............................             10,526
      Fees waived by the investment manager (Note 3)......            (50,753)
                                                             ----------------
                                                                    1,965,562
      Administration fees (Note 3):
        Class 1...........................................                355
        Class 2...........................................                330
        Class 3...........................................                270
        Class 4...........................................            206,216
      Distribution and service fees (Note 3):
        Class 1...........................................                388
        Class 2...........................................                 91
                                                             ----------------
           Net operating expenses.........................          2,173,212
                                                             ----------------
      Interest Expense (Note 8)...........................             50,711
                                                             ----------------
           Net investment income..........................          2,672,131
                                                             ----------------

Realized and unrealized gain (loss) from investments
and foreign currency:
      Net realized gain on:
        Investment transactions...........................         12,990,196
        Foreign currency transactions.....................          3,090,300
          Net realized gain...............................         16,080,496
                                                             ----------------

      Net change in unrealized appreciation 
       (depreciation) on:
        Investments.......................................         51,844,408
        Translation of assets and liabilities in foreign 
         currencies.......................................         (3,533,548)
        Net unrealized gain...............................         48,310,860
                                                             ----------------
        Net realized and unrealized gain from investments
         and foreign currency.............................         64,391,356
                                                             ----------------
      Net increase in net assets resulting from operations   $     67,063,487
                                                             ================

</TABLE> 

64      The accompanying notes are an integral part of the financial statements.
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

<TABLE> 
<CAPTION> 

                                                                          Six months ended
                                                                           June 30, 1997        Year ended
                                                                            (Unaudited)     December 31, 1996
                                                                          ----------------  -----------------
<S>                                                                       <C>               <C> 
Statements of Changes in Net Assets

Increase (Decrease) in Net Assets:
Operations:
      Net investment income.............................................  $      2,672,131  $       1,651,003
      Net realized gain on investments and foreign
       currency transactions............................................        16,080,496         10,732,352
      Net change in unrealized appreciation (depreciation) on
       investments and translation of assets and liabilities in
       foreign currencies...............................................        48,310,860         36,530,674
                                                                          ----------------  -----------------
        Net increase in net assets resulting from operations............        67,063,487         48,914,029
                                                                          ----------------  -----------------

Distributions to shareholders (Note 2):
      From net investment income:
      Class 1...........................................................                --               (263)
      Class 2...........................................................                --               (433)
      Class 3...........................................................                --               (501)
      Class 4...........................................................                --         (1,825,896)
                                                                          ----------------  -----------------
       Total distributions from net investment income...................                --         (1,827,093)
                                                                          ----------------  -----------------
In excess of net investment income:
      Class 1...........................................................                --               (794)
      Class 2...........................................................                --             (1,308)
      Class 3...........................................................                --             (1,513)
      Class 4...........................................................                --         (5,515,423)
                                                                          ----------------  -----------------
       Total distributions in excess of net investment income...........                --         (5,519,038)
                                                                          ----------------  -----------------
Net fund share transactions (Note 5):
      Class 1...........................................................                --            (13,956)
      Class 2...........................................................                --              1,742
      Class 3...........................................................                --              2,018
      Class 4...........................................................        92,458,564         94,070,522
                                                                          ----------------  -----------------
       Increase in net assets from net fund share transactions..........        92,458,564         94,060,326
                                                                          ----------------  -----------------
      Total increase in net assets......................................       159,522,051        135,628,224
Net assets:
      Beginning of period...............................................       356,651,812        221,023,588
                                                                          ----------------  -----------------
      End of period (including undistributed net investment income
       of $2,786,109 and $113,978, respectively)........................  $    516,173,863  $     356,651,812
                                                                          ================  =================

</TABLE> 

The accompanying notes are an integral part of the financial statements.      65
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)

<TABLE>     
<CAPTION> 

                                                                                              Class 1
                                                                                              -------
                                                                  Six months ended
                                                                      6/30/97        Year ended      Year ended     Period ended
                                                                    (Unaudited)       12/31/96        12/31/95       12/31/94**
                                                                    -----------      -----------    -----------     -----------
<S>                                                                 <C>              <C>            <C>             <C> 
Net asset value, beginning of period                                $    11.07       $     9.54     $     9.25      $    10.00
                                                                    -----------      -----------    -----------     -----------
Income (loss) from investment operations:
  Net investment income                                                   0.00            (0.07)         (0.03)          (0.02)
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                    1.76             1.70           0.40           (0.73)
                                                                    -----------      -----------    -----------     -----------
   Total income (loss) from investment operations                         1.76             1.63           0.37           (0.75)
                                                                    -----------      -----------    -----------     -----------
Less distributions to shareholders:
  From net investment income                                                --            (0.10)            --              --
  In excess of net investment income                                        --               --          (0.08)             --
                                                                    -----------      -----------    -----------     -----------
   Total distributions                                                      --            (0.10)         (0.08)             --
                                                                    -----------      -----------    -----------     -----------
Net asset value, end of period                                      $    12.83       $    11.07     $     9.54      $     9.25
                                                                    ===========      ===========    ===========     ===========
Total Return                                                             15.90%           17.09%          3.96%          (7.50)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                       $131             $113           $112             $93
  Net expenses to average daily net assets#                               2.17%*           2.15%          2.15%           2.15%*
  Net investment income to average daily net assets                       0.03%*          (0.51)%        (0.40)%         (1.10)%*
  Portfolio turnover rate                                                   36%              58%           121%             18%
  Average broker commission rate (a)                                $   0.0058       $   0.0254             N/A             N/A
   #Computed after giving effect to the voluntary partial
   waiver of management fee by MassMutual, which terminated 
   May 1, 1997.  Without this partial waiver of fees by 
   MassMutual, the ratio of expenses to average daily 
   net assets would have been:                                            2.19%*           2.22%          2.24%           2.24%*

</TABLE> 

<TABLE> 
<CAPTION> 

                                                                                              Class 2
                                                                                              -------
                                                                  Six months ended
                                                                      6/30/97        Year ended      Year ended     Period ended
                                                                    (Unaudited)       12/31/96        12/31/95       12/31/94**
                                                                    -----------      -----------    -----------     -----------
<S>                                                                 <C>              <C>            <C>             <C> 
Net asset value, beginning of period                                $    11.09       $     9.56     $     9.26      $    10.00
                                                                    -----------      -----------    -----------     -----------
Income (loss) from investment operations:
  Net investment income                                                   0.03             0.00           0.02           (0.01)
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                    1.77             1.70           0.40           (0.73)
                                                                    -----------      -----------    -----------     -----------
   Total income (loss) from investment operations                         1.80             1.70           0.42           (0.74)
                                                                    -----------      -----------    -----------     -----------
Less distributions to shareholders:
  From net investment income                                                --            (0.17)         (0.02)             --
  In excess of net investment income                                        --               --          (0.10)             --
                                                                    -----------      -----------    -----------     -----------
   Total distributions                                                      --            (0.17)         (0.12)             --
                                                                    -----------      -----------    -----------     -----------
Net asset value, end of period                                      $    12.89       $    11.09     $     9.56      $     9.26
                                                                    ===========      ===========    ===========     ===========
Total Return                                                             16.23%           17.85%          4.52%          (7.40)%
Ratios / Supplemental Data:
  Net assets, end of period (000's)                                       $132             $114            $97             $93
  Net expenses to average daily net assets#                               1.62%*           1.60%          1.60%           1.60%*
  Net investment income to average daily net assets                       0.58%*           0.02%          0.19%          (0.55)%*
  Portfolio turnover rate                                                   36%              58%           121%             18%
  Average broker commission rate (a)                                $   0.0058       $   0.0254             N/A             N/A
   #Computed after giving effect to the voluntary partial
   waiver of management fee by MassMutual, which terminated 
   May 1, 1997.  Without this partial waiver of fees by 
   MassMutual, the ratio of expenses to average daily            
   net assets would have been:                                            1.64%*           1.67%          1.69%           1.69%* 
</TABLE>      

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
December 31, 1994.

(a)Average commission rate paid is computed by dividing the total amount of
commissions paid during the fiscal year by the total number of shares purchased
and sold during the fiscal year for which commissions were charged. For fiscal
years beginning on or after September 1, 1995, a Fund is required to disclose
its average commission rate per share for security trades on which commissions
are charged. The average broker commission rate will vary depending on the
markets in which trades are executed.

The accompanying notes are an integral part of the financial statements.

66
<PAGE>
 
- --------------------------------------------------------------------------------
MassMutual International Equity Fund - Financial Statements (Continued)
- --------------------------------------------------------------------------------

Financial Highlights
(For a share outstanding throughout each period)
<TABLE>     
<CAPTION> 

                                                                                               Class 3
                                                                                               -------
                                                                 Six months ended
                                                                     6/30/97          Year ended      Year ended     Period ended
                                                                   (Unaudited)         12/31/96        12/31/95       12/31/94**
                                                                 -------------     -------------   -------------   -------------
<S>                                                              <C>               <C>             <C>             <C> 
 Net asset value, beginning of period                             $      11.10      $       9.57    $       9.27    $      10.00
                                                                 -------------     -------------   -------------   -------------

Income (loss) from investment operations:
  Net investment income                                                  0.05              0.03            0.04           (0.00)
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                   1.76              1.70            0.40           (0.73)
                                                                 -------------     -------------   -------------   -------------
   Total income (loss) from investment operations                        1.81              1.73            0.44           (0.73)
                                                                 -------------     -------------   -------------   -------------
Less distributions to shareholders:
  From net investment income                                               --             (0.20)          (0.05)             --
  In excess of net investment income                                       --                --           (0.09)             --
                                                                 -------------     -------------   -------------   -------------
   Total distributions                                                     --             (0.20)          (0.14)             --
                                                                 -------------     -------------   -------------   -------------
Net asset value, end of period                                   $      12.91      $      11.10    $       9.57    $       9.27
                                                                 =============     =============   =============   =============
Total Return                                                            16.31%            18.11%           4.78%          (7.30)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                      $133              $114             $97             $93
  Net expenses to average daily net assets#                              1.37%*            1.35%           1.35%           1.35%*
  Net investment income to average daily net assets                      0.83%*            0.27%           0.45%          (0.30)%*
  Portfolio turnover rate                                                  36%               58%            121%             18%
  Average broker commission rate (a)                             $     0.0058      $     0.0254              N/A             N/A
   #Computed after giving effect to the voluntary partial
   waiver of management fee by MassMutual, which terminated 
   May 1, 1997.  Without this partial waiver of fees by 
   MassMutual, the ratio of expenses to average daily                                                                             
   net assets would have been:                                           1.39%*            1.42%           1.44%           1.44%* 

<CAPTION> 
                                                                                               Class 4
                                                                                               -------
                                                                Six months ended
                                                                     6/30/97         Year ended      Year ended     Period ended
                                                                   (Unaudited)         12/31/96        12/31/95       12/31/94**
                                                                 -------------     -------------   -------------   -------------
<S>                                                              <C>               <C>             <C>             <C> 
Net asset value, beginning of period                             $      11.11      $       9.58    $       9.28    $      10.00
                                                                 -------------     -------------   -------------   -------------

Income (loss) from investment operations:
  Net investment income                                                  0.07              0.06            0.07            0.00
  Net realized and unrealized gain (loss) on investments
  and foreign currency                                                   1.77              1.71            0.41           (0.72)
                                                                 -------------     -------------   -------------   -------------
   Total income (loss) from investment operations                        1.84              1.77            0.48           (0.72)
                                                                 -------------     -------------   -------------   -------------

Less distributions to shareholders:
  From net investment income                                               --             (0.24)          (0.07)             --
  In excess of net investment income                                       --                --           (0.11)             --
                                                                 -------------     -------------   -------------   -------------
   Total distributions                                                     --             (0.24)          (0.18)             --
                                                                 -------------     -------------   -------------   -------------
Net asset value, end of period                                   $      12.95      $      11.11    $       9.58    $       9.28
                                                                 =============     =============   =============   =============
Total Return@                                                           16.56%            18.51%           5.13%          (7.20)%

Ratios / Supplemental Data:
  Net assets, end of period (000's)                                  $515,778          $356,311        $220,718        $150,199
  Net expenses to average daily net assets#                            1.0229%*          1.0020%         1.0020%         1.0020%*
  Net investment income to average daily net assets                      1.26%*            0.59%           0.76%           0.04%*
  Portfolio turnover rate                                                  36%               58%            121%             18%
  Average broker commission rate (a)                             $     0.0058      $     0.0254              N/A             N/A
   #Computed after giving effect to the voluntary partial
   waiver of management fee by MassMutual, which terminated 
   May 1, 1997.  Without this partial waiver of fees by 
   MassMutual, the ratio of expenses to average daily         
   net assets would have been:                                         1.0468%*          1.0718%         1.0920%         1.0877%* 
                                                              

</TABLE>      

*Annualized
**For the period from October 3, 1994 (commencement of operations) through
  December 31, 1994.

(a)Average commission rate paid is computed by dividing the total amount of
   commissions paid during the fiscal year by the total number of shares
   purchased and sold during the fiscal year for which commissions were charged.
   For fiscal years beginning on or after September 1, 1995, a Fund is required
   to disclose its average commission rate per share for security trades on
   which commissions are charged. The average broker commission rate will vary
   depending on the markets in which trades are executed.
@  Employee retirement benefit plans that invest plan assets in the Separate
   Investment Accounts (SIAs) may be subject to certain charges as set forth in
   their respective Plan Documents. Total return figures would be lower for the
   periods presented if they reflected these charges.


The accompanying notes are an integral part of the financial statements.     67
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements  (Unaudited)
- --------------------------------------------------------------------------------

1.      The Trust

MassMutual Institutional Funds (the "Trust") is registered under the Investment
Company Act of 1940, as amended (the "1940 Act"), as an open-end, diversified
management investment company. The Trust is organized under the laws of the
Commonwealth of Massachusetts as a Massachusetts business trust pursuant to an
Agreement and Declaration of Trust dated May 28, 1993, as amended. The Trust
consists of seven separate series of shares (each individually referred to as a
"Fund" or collectively as the "Funds"), each having four classes of shares:
Class 1, Class 2, Class 3 and Class 4. Class 1, Class 2 and Class 3 shares of
each Fund are offered primarily to employer-sponsored defined contribution plans
that satisfy the qualification requirements of Section 401(a) of the Internal
Revenue Code of 1986, as amended (the "Code"). Class 4 shares of each Fund are
available only to separate investment accounts ("SIAs") of Massachusetts Mutual
Life Insurance Company ("MassMutual") in which corporate qualified plans,
including defined contribution plans and defined benefit plans, are permitted to
invest pursuant to the issuance of group annuity contracts. The Funds are
MassMutual Prime Fund ("Prime Fund"), MassMutual Short-Term Bond Fund
("Short-Term Bond Fund"), MassMutual Core Bond Fund ("Core Bond Fund"),
MassMutual Balanced Fund ("Balanced Fund"), MassMutual Value Equity Fund ("Value
Equity Fund"), MassMutual Small Cap Value Equity Fund ("Small Cap Value Equity
Fund"), and MassMutual International Equity Fund ("International Equity Fund"),
all of which commenced operations on October 3, 1994.


2.      Significant Accounting Policies

The following is a summary of significant accounting policies followed
consistently by each Fund in the preparation of the financial statements in
conformity with generally accepted accounting principles. The preparation of the
financial statements in accordance with generally accepted accounting principles
requires management to make estimates and assumptions that affect the reported
amounts and disclosures in the financial statements. Actual results could differ
from those estimates.


Investment Valuation

Equity securities are valued on the basis of valuations furnished by a pricing
service, authorized by the Board of Trustees ("Trustees"), which provides the
last reported sale price for securities listed on a national securities exchange
or on the NASDAQ national market system, or in the case of over-the-counter
securities not so listed, the last reported bid price. Debt securities (other
than short-term obligations with a remaining maturity of sixty days or less) are
valued on the basis of valuations furnished by a pricing service, authorized by
the Trustees, which determines valuations taking into account appropriate
factors such as institutional-size trading in similar groups of securities,
yield, quality, coupon rate, maturity, type of issue, trading characteristics
and other market data. Money market obligations with a remaining maturity of
sixty days or less are valued at either amortized cost or at original cost plus
accrued interest, whichever approximates current market value. All other
securities and other assets, including debt securities for which the prices
supplied by a pricing agent are deemed by MassMutual not to be representative of
market values, and including restricted securities and securities for which no
market quotation is available, are valued at fair value in accordance with
procedures approved by and determined in good faith by the Trustees, although
the actual calculation may be done by others.

Portfolio securities traded on more than one national securities exchange are
valued at the last price on the business day as of which such value is being
determined at the close of the exchange representing the principal market for
such securities. All assets and liabilities expressed in foreign currencies will
be converted into U.S. dollars at the mean between the buying and selling rates
of such currencies against U.S. dollars last quoted by any major bank. If such
quotations are not available, the rate of exchange will be determined in
accordance with policies established by the Trustees.


68
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------


Accounting for Investments

Investment transactions are accounted for on the trade date. Realized gains and
losses on sales of investments and unrealized appreciation and depreciation of
investments are computed on the specific identification cost method. Interest
income, adjusted for amortization of discounts and premiums on investments, is
earned from the settlement date and is recorded on the accrual basis. Dividend
income is recorded on the ex-dividend date.

Federal Income Tax

It is each Fund's intent to continue to comply with the provisions of subchapter
M of the Code applicable to a regulated investment company. Under such
provisions, the Funds will not be subject to federal income taxes on their
ordinary income and net realized capital gain to the extent they are distributed
or deemed to have been distributed to their shareholders. Therefore, no Federal
income tax provision is required.

Dividends and Distributions to Shareholders

Dividends from net investment income and distributions of any net realized
capital gains of each Fund are declared and paid annually and at other times as
may be required to satisfy tax or regulatory requirements. Distributions to
shareholders are recorded on the ex-dividend date. Income and capital gain
distributions are determined in accordance with income tax regulations which may
differ from generally accepted accounting principles. These differences are
primarily due to investments in forward contracts, passive foreign investment
companies, the deferral of wash sale losses, and paydowns on certain
mortgage-backed securities. As a result, net investment income (loss) and net
realized gain (loss) on investment transactions for a reporting period may
differ significantly from distributions during such period. Accordingly, the
Funds may periodically make reclassifications among certain of their capital
accounts without impacting the net asset value of the Funds.

Foreign Currency Translation

The books and records of the Funds are maintained in U.S. dollars. The market
values of foreign currencies, foreign securities and other assets and
liabilities denominated in foreign currencies are translated into U.S. dollars
at the mean of the buying and selling rates of such currencies against the U.S.
dollar at the end of each business day. Purchases and sales of foreign
securities and income and expense items are translated at the rates of exchange
prevailing on the respective dates of such transactions. The Funds do not
isolate that portion of the results of operations arising from changes in the
exchange rates from that portion arising from changes in the market prices of
securities.

Net realized foreign currency gains and losses resulting from changes in
exchange rates include foreign currency gains and losses between trade date and
settlement date on investment securities transactions, foreign currency
transactions and the difference between the amounts of dividends recorded on the
books of the Funds and the amount actually received.

Forward Foreign Currency Contracts

Each Fund may enter into forward foreign currency contracts in order to convert
foreign denominated securities or obligations to U.S. dollar denominated
investments. The International Equity Fund may engage in such transactions to
manage the value of portfolio holdings against future movements in certain
foreign currency exchange rates. A forward foreign currency contract is an
agreement between two parties to buy and sell a currency at a set price on a
future date. The market value of a forward currency contract fluctuates with
changes in forward foreign currency exchange rates. Forward foreign currency
contracts are marked to market daily and the change in their value is recorded
by the Funds as an unrealized gain or loss. When a forward foreign currency
contract is extinguished, through delivery or offset by entering into another
forward foreign currency contract, the Funds record a realized gain or loss
equal to the difference between the value of the contract at the time it was
opened and the value of the contract at the time it was extinguished or offset.

Forward foreign currency contracts involve a risk of loss from the potential
inability of counterparties to meet the terms of their contracts and from
unanticipated movements in foreign currency values and interest rates.


                                                                              69
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------


The notional or contractual amounts of these instruments represent the
investments the Funds have in particular classes of financial instruments and do
not necessarily represent the amounts potentially subject to risk. The
measurement of the risk associated with these instruments is meaningful only
when all related and offsetting transactions are considered. A summary of
obligations for the International Equity Fund under these financial instruments
at June 30, 1997 is as follows:
<TABLE> 
<CAPTION> 
                                                             In
                 Contracts                                 Exchange                            Unrealized
Settlement           to                  Units of          for U.S.         Contracts at      Appreciation
   Date       Deliver/Receive            Currency          Dollars             Value          (Depreciation)
- ---------     -----------------         ----------         ---------       -------------      --------------
<S>           <C>                       <C>            <C>                <C>                 <C> 
 BUYS                                                 
 07/02/97    French Franc               13,258,256     $    2,276,994     $    2,258,300      $    (18,694)
 07/01/97    Japanese Yen                7,449,428             64,964             65,108               144
 07/01/97    Netherlands Guilder         4,986,916          2,566,871          2,545,254           (21,617)
 07/01/97    Swedish Krona               4,120,261            535,273            532,857            (2,416)
                                                                                              --------------  
                                                                                                   (42,583) 
                                                                                              --------------  
 SELLS                              
 07/31/97    Japanese Yen            4,007,200,000         32,316,129         35,141,013        (2,824,884)
 07/01/97    Netherlands Guilder           143,992             74,116             73,492               624
                                                                                              --------------  
                                                                                                (2,824,260)
                                                                                              --------------  
                                                                                              $ (2,866,843)
                                                                                              ==============
</TABLE> 


Forward Commitments

Each Fund may purchase or sell securities on a "when issued" or delayed delivery
or on a forward commitment basis. The Funds use forward commitments to manage
interest rate exposure or as a temporary substitute for purchasing or selling
particular debt securities. Forward commitments are not used for purposes of
trading. Delivery and payment for securities purchased on a forward commitment
basis can take place a month or more after the date of the transaction. The
Funds instruct the custodian to segregate assets in a separate account with a
current market value at least equal to the amount of its forward purchase
commitments. The price of the underlying security and the date when the
securities will be delivered and paid for are fixed at the time the transaction
is negotiated. The value of the forward commitment is determined by management
using a commonly accepted pricing model and fluctuates based upon changes in the
value of the underlying security and market repurchase rates. Such rates equate
the counterparty's cost to purchase and finance the underlying security to the
earnings received on the security and forward delivery proceeds. The Funds
record on a daily basis the unrealized appreciation/depreciation based upon
changes in the value of the forward commitment. When a forward commitment
contract is closed, the Funds record a realized gain or loss equal to the
difference between the value of the contract at the time it was opened and the
value of the contract at the time it was extinguished. Forward commitments
involve a risk of loss if the value of the security to be purchased declines
prior to the settlement date. The Funds could also be exposed to loss if they
cannot close out their forward commitments because of an illiquid secondary
market, or the inability of counterparties to perform. The Funds monitor
exposure to ensure counterparties are creditworthy and concentration of exposure
is minimized. A summary of open obligations under these forward commitments at
June 30, 1997, is as follows:

<TABLE> 
<CAPTION> 

          Forward             Expiration       Aggregate
        Commitment               of            Face Value                       Market       Unrealized
     Contracts to Buy         Contracts       of Contracts       Cost            Value      (Depreciation)
     ----------------         ---------       ------------       ----            -----      --------------
     <S>                      <C>             <C>             <C>             <C>           <C> 
     Core Bond Fund                                                                       
      U.S. Treasury Note                                                                  
     5.875% 11/15/1999        August 1997     $ 9,250,000     $ 9,210,977     $ 9,187,378     ($23,599)
                                                                                          
     Balanced Fund                                                                        
      U.S. Treasury Note                                                                  
     5.875% 11/15/1999        August 1997      $1,900,000      $1,891,984      $1,887,137     ($ 4,847)
</TABLE> 


70
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------


Allocation of Operating Activity

In maintaining the records for the Funds, the income and expense accounts are
allocated to each class of shares. Investment income, unrealized and realized
gains or losses are prorated among the classes of shares based on the relative
net assets of each. Expenses are allocated to each class of shares depending on
the nature of the expenditures. Administration and distribution and service
fees, which are directly attributable to a class of shares, are charged to that
class' operations. Expenses of the Fund not directly attributable to the
operations of any class of shares or Fund are prorated among the Funds and
classes to which the expense relates based on the relative net assets of each.
Total expenses per class are currently limited to a percentage of average daily
net assets, as discussed in Note 3.


3.   Management Fees and Other Transactions With Affiliates

Investment Management Fees

Under an agreement between the Trust and MassMutual, MassMutual is responsible
for providing investment management of each Fund. In return for this service,
MassMutual receives advisory fees monthly based upon each Fund's average daily
net assets at the following annual rates:

<TABLE> 
<CAPTION> 

<S>                                                   <C> 
Prime Fund                                            .45%
Short-Term Bond Fund                                  .45%
Core Bond Fund                                        .45%
Balanced Fund                                         .45%
Value Equity Fund                                     .45%
Small Cap Value Equity Fund                           .55%
International Equity Fund                             .85%
</TABLE> 
MassMutual has entered into investment sub-advisory agreements with two
subsidiaries: David L. Babson & Company, Inc. ("Babson") and HarbourView Asset
Management Corporation ("HarbourView"). These agreements provide that (1)
effective January 1, 1997, Babson will manage the investment and reinvestment of
the assets of the Value Equity Fund, the Small Cap Value Equity Fund and the
Value Equity sector of the Balanced Fund, and (2) HarbourView will manage the
investment and reinvestment of the assets of the International Equity Fund.
Prior to January 1, 1997, Concert Capital Management ("Concert Capital") served
as the investment sub-advisor to the Value Equity Fund, the Small Cap Value
Equity Fund and the Value Equity sector of the Balanced Fund. On January 1,
1996, the employees of Concert Capital became co-employees of Babson. At the
time, both Concert Capital and Babson were wholly-owned subsidiaries of DLB
Acquisition Corporation, a controlled subsidiary of MassMutual. Concert Capital
merged with and into Babson effective December 31, 1996.
 
MassMutual pays Babson a fee equal to an annual rate of .13% of the average
daily net asset value of the Value Equity Fund and the Value Equity sector of
the Balanced Fund and .25% of the average daily net asset value of the Small Cap
Value Equity Fund. MassMutual pays HarbourView a fee equal to an annual rate of
 .50% of the average daily net asset value of the International Equity Fund.

Administration Fees

Under separate administrative and shareholder services agreements between each
Fund and MassMutual, MassMutual provides certain administrative and shareholder
services and bears some class specific administrative expenses. In return for
these services, MassMutual receives an administrative services fee monthly based
upon the average daily net assets of the applicable class of shares of the Fund
at the following annual rates:

<TABLE> 
<CAPTION> 

                                  Class 1     Class 2     Class 3     Class 4 
                                 ---------   ---------   ---------   ---------
<S>                              <C>         <C>         <C>         <C> 
Prime Fund                         .5628%      .5128%      .3152%      .0812%
Short-Term Bond Fund               .5568%      .5068%      .3092%      .0782%
Core Bond Fund                     .5688%      .5188%      .3212%      .0842%
Balanced Fund                      .5708%      .5208%      .3232%      .0852%
Value Equity Fund                  .5814%      .5314%      .3338%      .0905%
Small Cap Value Equity Fund        .5728%      .5228%      .3252%      .0862%
International Equity Fund          .5948%      .5448%      .4448%      .0972%
</TABLE> 


                                                                              71
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

Distribution and Service Fees
    
OppenheimerFunds Distributor, Inc. ("Oppenheimer") acts as distributor to each
Fund. MML Investor Services, Inc. ("MMLISI") serves as sub-distributor to each
Fund. MassMutual has a controlling interest in OppenheimerFunds, and MMLISI is a
wholly owned subsidiary of MassMutual. Oppenheimer is paid a distribution fee
with respect to Class 1 and Class 2 at the annual rate of .40% and .15%,
respectively, of the value of average daily net assets attributable to those
classes of shares of which a portion is subsequently allocated to MMLISI. The
Funds do not pay any fees directly to MMLISI. MassMutual is also paid a fee for
shareholder services with respect to Class 1 shares of the Funds at the annual
rate of .25% of the value of the average daily net assets of the respective
class of each Fund. These fees are authorized pursuant to separate service and
distribution plans for each of the classes of shares adopted by the Funds
pursuant to Rule 12b-1 under the Investment Company Act and are used by
Oppenheimer to cover expenses primarily intended to result in the sale of those
shares of the Funds.     

Expense Limitations

For the period January 1, 1997 to April 30, 1997, MassMutual voluntarily agreed
to waive a portion of its management fee to the extent that the aggregate annual
operating expenses incurred during the year exceed the following percentages of
the average daily net assets:

<TABLE> 
<CAPTION> 

                                Class 1    Class 2    Class 3    Class 4
                                -------    -------    -------    -------
<S>                             <C>        <C>        <C>        <C>   
Prime Fund                       1.65%      1.10%      .75%      .5160%
Short-Term Bond Fund             1.65%      1.10%      .75%      .5190%
Core Bond Fund                   1.65%      1.10%      .75%      .5130%
Balanced Fund                    1.65%      1.10%      .75%      .5120%
Value Equity Fund                1.65%      1.10%      .75%      .5067%
Small Cap Value Equity Fund      1.75%      1.20%      .85%      .6110%
International Equity Fund        2.15%      1.60%     1.35%      1.002%
</TABLE> 

MassMutual's voluntary agreement to waive a portion of its management fee
terminated May 1, 1997. MassMutual's management fee for the six months ended
June 30, 1997 was $12,168,769, of which $679,798 was reimbursed to the Funds.

Other

Certain officers and directors of the Funds are also officers of MassMutual. The
compensation of unaffiliated directors of the Funds is borne by the Funds.

At June 30, 1997, MassMutual or separate investment accounts thereof owned all
of the outstanding shares of the Trust.

4.   Purchases And Sales Of Investments

Cost of purchases and proceeds from sales of investment securities (excluding
short-term investments) for the six months ended June 30, 1997 were as follows:

<TABLE> 
<CAPTION> 
                                                Long-term U.S.
                                                  Government             Other Long-term
                                                  Securities                Securities  
                                                --------------          ------------------
<S>          <C>                                <C>                     <C> 
Purchases    Short-Term Bond Fund               $   18,507,923          $       16,509,283
             Core Bond Fund                         47,633,441                  78,499,107
             Balanced Fund                          20,660,889                  47,510,855
             Value Equity Fund                               -                 275,356,822
             Small Cap Value Equity Fund                     -                  79,346,567
             International Equity Fund                       -                 243,114,678

Sales        Short-Term Bond Fund               $    2,362,891          $        9,230,657
             Core Bond Fund                         57,991,171                  21,845,637
             Balanced Fund                          16,398,490                  33,414,775
             Value Equity Fund                               -                 231,667,406
             Small Cap Value Equity Fund                     -                  78,679,629
             International Equity Fund                       -                 151,990,672
</TABLE> 

72
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

5.   Capital Share Transactions

The Funds are authorized to issue an unlimited number of shares, with no par
value, in one or more of four classes of shares: Class 1, Class 2, Class 3 and
Class 4. Class 1 and Class 2 shares of each Fund are subject to distribution and
service fees. Class 3 shares are not subject to any distribution or service
fees. SIA Investors purchase Class 4 shares directly from the Funds and pay no
distribution or service fees. Changes in shares outstanding for each Fund are as
follows:

<TABLE> 
<CAPTION> 
                                                           Class 1                   

                                           Six months ended           Year ended                  
                                             June 30, 1997         December 31, 1996         
                                                                                            
                                          Shares      Amount      Shares        Amount       
                                         --------    --------    --------      --------      
<S>                                      <C>         <C>         <C>           <C>          
Prime Fund                                                                                  
   Sold                                        -           -           -             -       
   Issued as reinvestment                                                                   
     of dividends                              -           -          28         4,288       
   Redeemed                                    -           -           -             -       
                                       ---------   ---------   ---------    ----------      
   Net increase                                -   $       -          28    $    4,288       
                                       =========   =========   =========    ==========      
Short-Term Bond Fund                                                                        
   Sold                                        -           -           -             -       
   Issued as reinvestment                                                                   
     of dividends                              -           -         519         5,285       
   Redeemed                                    -           -           -             -       
                                       ---------   ---------   ---------    ----------      
   Net increase                                -   $       -         519    $    5,285       
                                       =========   =========   =========    ========== 
Core Bond Fund                                                                              
   Sold                                        -           -         429         4,520       
   Issued as reinvestment                                                                   
     of dividends                              -           -         489         5,156       
   Redeemed                                    -           -      (5,250)      (55,534)      
                                       ---------   ---------   ---------    ----------      
   Net increase (decrease)                     -   $       -      (4,332)   $  (45,858)      
                                       =========   =========   =========    ==========      
Balanced Fund                                                                               
   Sold                                        -           -         931        10,969       
   Issued as reinvestment                                                                   
     of dividends                              -           -         416         5,173       
   Redeemed                                    -           -      (5,552)      (65,509)      
                                       ---------   ---------   ---------    ----------      
   Net increase (decrease)                     -   $       -      (4,205)   $  (49,367)      
                                       =========   =========   =========    ==========      
Value Equity Fund                                                                           
   Sold                                        -           -           -             -       
   Issued as reinvestment                                                                   
     of dividends                              -           -         403         5,884       
   Redeemed                                    -           -           -             -       
                                       ---------   ---------   ---------    ----------      
   Net increase                                -   $       -         403    $    5,884       
                                       =========   =========   =========    ==========      
Small Cap Value Equity Fund                                                                 
   Sold                                        -           -       4,373        54,090       
   Issued as reinvestment                                                                   
     of dividends                              -           -         349         4,660       
   Redeemed                                    -           -      (9,150)     (108,036)      
                                       ---------   ---------   ---------    ----------      
   Net increase (decrease)                     -   $       -      (4,428)   $  (49,286)      
                                       =========   =========   =========    ========== 
International Equity Fund                                                                   
   Sold                                        -           -       5,377        55,098       
   Issued as reinvestment                                                                   
     of dividends                              -           -         100         1,065       
   Redeemed                                    -           -      (7,009)      (70,119)      
                                       ---------   ---------   ---------    ----------      
   Net increase                                -   $       -      (1,532)   $  (13,956)      
                                       =========   =========   =========    ==========      
</TABLE> 

<TABLE> 
<CAPTION> 
                                                                   Class 2                                                 
                                                                                                       
                                           Six months ended                       Year ended           
                                             June 30, 1997                     December 31, 1996       
                                                                                                       
                                        Shares            Amount            Shares            Amount   
                                       --------          --------          --------          --------  
<S>                                    <C>               <C>               <C>               <C>  
Prime Fund                                                                                             
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -                33              4,922
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase                              -        $        -                33         $    4,922  
                                    ==========        ==========        ==========         ==========               
Short-Term Bond Fund                                                                                   
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -               584              5,951 
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase                              -        $        -               584         $    5,951  
                                    ==========        ==========        ==========         ==========               
Core Bond Fund                                                                                         
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -               562              5,941    
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase (decrease)                   -        $        -               562         $    5,941  
                                    ==========        ==========        ==========         ==========               
Balanced Fund                                                                                          
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -               484              6,038 
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase (decrease)                   -        $        -               484         $    6,038  
                                    ==========        ==========        ==========         ==========               
Value Equity Fund                                                                                      
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -               456              6,682  
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase                              -        $        -               456         $    6,682  
                                    ==========        ==========        ==========         ==========               
Small Cap Value Equity Fund                                                                            
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -               420              5,622 
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase (decrease)                   -        $        -               420         $    5,622  
                                    ==========        ==========        ==========         ==========               
International Equity Fund                                                                              
   Sold                                      -                 -                 -                  -  
   Issued as reinvestment                                                                              
     of dividends                            -                 -               161              1,742  
   Redeemed                                  -                 -                 -                  -  
                                    ----------        ----------        ----------         ----------               
   Net increase                              -        $        -               161         $    1,742  
                                    ==========        ==========        ==========         ==========               
</TABLE> 

                                                                              73
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------
<TABLE> 
<CAPTION> 

                                                     Class 3                 

                                  Six months ended              Year ended          
                                    June 30, 1997            December 31, 1996      
                                                                                    
                                 Shares       Amount        Shares        Amount       
                                --------     --------      --------      --------      
<S>                             <C>          <C>           <C>           <C> 
Prime Fund                                                                          
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -            35         5,335      
   Redeemed                            -            -             -             -      
                              ----------   ----------    ----------    ----------     
   Net increase                        -   $        -            35    $    5,335      
                              ==========   ==========    ==========    ==========     
Short-Term Bond Fund                                                                
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -           625         6,381      
   Redeemed                            -            -             -             -      
                              ----------   ----------    ----------    ----------     
   Net increase                        -   $        -           625    $    6,381      
                              ==========   ==========    ==========    ==========     
Core Bond Fund                                                                      
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -           604         6,389      
   Redeemed                            -            -             -             -      
                              ----------   ----------    ----------    ----------     
   Net increase                        -   $        -           604    $    6,389      
                              ==========   ==========    ==========    ==========     
Balanced Fund                                                                       
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -           521         6,510      
   Redeemed                            -            -             -             -      
                              ----------   ----------    ----------    ----------     
   Net increase                        -   $        -           521    $    6,510      
                              ==========   ==========    ==========    ==========     
Value Equity Fund                                                                   
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -           492         7,213      
   Redeemed                            -            -             -             -    
                              ----------   ----------    ----------    ----------     
   Net increase (decrease)             -   $        -           492    $    7,213      
                              ==========   ==========    ==========    ==========     
Small Cap Value Equity Fund                                                         
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -           455         6,096      
   Redeemed                            -            -             -             -      
                              ----------   ----------    ----------    ----------     
   Net increase                        -   $        -           455    $    6,096      
                              ==========   ==========    ==========    ==========     
International Equity Fund                                                           
   Sold                                -            -             -             -      
   Issued as reinvestment                                                           
     of dividends                      -            -           186         2,018      
   Redeemed                            -            -             -             -      
                              ----------   ----------    ----------    ----------     
   Net increase                        -   $        -           186    $   $2,018      
                              ==========   ==========    ==========    ==========     
</TABLE> 

<TABLE> 
<CAPTION> 
                                                                    Class 4              
                                                                                                           
                                             Six months ended                      Year ended       
                                              June 30, 1997                     December 31, 1996   
                                                                                                           
                                         Shares            Amount            Shares            Amount      
                                        --------          --------          --------          --------     
<S>                                     <C>               <C>               <C>               <C>  
Prime Fund                                                                                                 
   Sold                                1,255,263       191,777,654         2,391,584        370,653,176    
   Issued as reinvestment                                                                                  
     of dividends                              -                 -            86,522         13,067,477                            
   Redeemed                           (1,389,966)     (212,526,347)       (2,445,697)      (378,881,926)   
                                    ------------      ------------      ------------       ------------  
   Net increase                         (134,703)     $(20,748,693)           32,409       $  4,838,727    
                                    ============      ============      ============       ============  
Short-Term Bond Fund                                                                                       
   Sold                                4,745,250        48,620,824         6,074,656         62,871,971    
   Issued as reinvestment                                                                                     
     of dividends                              -                -            808,935          8,206,104                            
   Redeemed                           (2,523,313)      (25,793,936)       (4,631,745)       (47,999,711)   
                                    ------------      ------------      ------------       ------------  
   Net increase                        2,221,937      $ 22,826,888         2,251,846       $ 23,078,364    
                                    ============      ============      ============       ============  
Core Bond Fund                                                                                             
   Sold                                9,449,800        99,663,183        15,244,478        161,638,362    
   Issued as reinvestment                                                                                     
     of dividends                              -                 -         1,838,613         19,317,124                         
   Redeemed                           (4,837,900)      (50,796,721)       (6,519,179)       (69,250,775)   
                                    ------------      ------------      ------------       ------------  
   Net increase                        4,611,900      $ 48,866,462        10,563,912       $111,704,711    
                                    ============      ============      ============       ============  
Balanced Fund                                                                                              
   Sold                                8,196,028       105,127,519        16,529,257        200,170,935    
   Issued as reinvestment                                                                                     
     of dividends                              -                 -         2,193,746         27,325,515                             
   Redeemed                           (7,618,750)      (97,358,388)      (12,780,860)      (154,960,358)   
                                    ------------      ------------      ------------       ------------  
   Net increase                          577,278      $  7,769,131         5,942,143       $ 72,536,092    
                                    ============      ============      ============       ============  
Value Equity Fund                                                                                          
   Sold                               22,591,959       348,496,543        42,761,147        585,609,490    
   Issued as reinvestment                                                                                     
     of dividends                              -                 -         8,235,214        120,574,407                         
   Redeemed                          (20,346,283)     (311,674,013)      (47,300,940)      (651,246,978)   
                                    ------------      ------------      ------------       ------------  
   Net increase (decrease)             2,245,676      $ 36,822,530         3,695,421       $ 54,936,919    
                                    ============      ============      ============       ============  
Small Cap Value Equity Fund                                                                                
   Sold                                6,601,406        91,460,706        10,428,037        129,033,258    
   Issued as reinvestment                                                                                     
     of dividends                              -                 -         1,500,824         20,087,217                          
   Redeemed                           (4,349,407)      (59,870,279)      (11,168,365)      (140,771,695)   
                                    ------------      ------------      ------------       ------------  
   Net increase                        2,251,999      $ 31,590,427           760,496       $  8,348,780    
                                    ============      ============      ============       ============  
International Equity Fund                                                                                  
   Sold                               12,137,572       144,485,007        14,964,804        154,912,942    
   Issued as reinvestment                                                                                     
     of dividends                              -                 -           672,906          7,341,306                             
   Redeemed                           (4,372,600)      (52,026,443)       (6,611,341)       (68,183,726)   
                                    ------------      ------------      ------------       ------------  
   Net increase                        7,764,972      $ 92,458,564         9,026,369       $ 94,070,522    
                                    ============      ============      ============       ============ 
</TABLE> 

74
<PAGE>
 
- --------------------------------------------------------------------------------
Notes to Financial Statements (Continued)
- --------------------------------------------------------------------------------

6.   Foreign Securities

The International Equity Fund invests substantially all of its assets in foreign
securities. The other Funds may also invest in foreign securities, subject to
certain percentage restrictions. Investing in securities of foreign companies
and foreign governments involves special risks and considerations not typically
associated with investing in securities of U.S. companies and the U.S.
Government. These risks include revaluation of currencies and future adverse
political and economic developments. Moreover, securities of many foreign
companies and foreign governments and their markets may be less liquid and their
prices more volatile than those of securities of comparable U.S. companies and
the U.S. Government.

7.   Federal Income Tax Information

At June 30, 1997, the cost of securities and the unrealized appreciation
(depreciation) in the value of investments owned by the Funds, as computed on a
Federal income tax basis, are as follows:

<TABLE> 
<CAPTION> 
                                                 Federal               Tax Basis          Tax Basis          Net Unrealized
                                                Income Tax             Unrealized         Unrealized          Appreciation
                                                   Cost               Appreciation        Depreciation        (Depreciation) 
                                            ------------------     -----------------     --------------     -----------------
<S>                                         <C>                    <C>                   <C>                <C> 
Prime Fund                                  $      244,588,726     $          13,049     $       (5,212)    $           7,837
Short-Term Bond Fund                               164,941,091               890,098           (647,903)              242,195
Core Bond Fund                                     400,421,776             6,269,978         (2,625,774)            3,644,204
Balanced Fund                                      505,416,393           124,999,570         (2,252,527)          122,747,043
Value Equity Fund                                1,932,556,830         1,026,193,157        (13,582,382)        1,012,610,775
Small Cap Value Equity Fund                        404,086,580           168,930,386         (4,308,657)          164,621,729
International Equity Fund                          424,095,948           109,456,956        (10,319,829)           99,137,127
</TABLE> 

At December 31, 1996, the following Funds had available, for Federal income tax
purposes, unused capital losses:

<TABLE> 
<CAPTION> 

                                     Amount              Expiration Date
                                   --------------------------------------
<S>                                <C>                  <C> 
Prime Fund                         $     2,082          December 31, 2003
Prime Fund                               2,368          December 31, 2004
Short-Term Bond Fund                   295,197          December 31, 2004
Core Bond Fund                       1,885,881          December 31, 2004
International Equity Fund           11,789,843          December 31, 2003
</TABLE> 

8.   Line of Credit  

The Trust, on behalf of each Fund, maintains a discretionary line of credit
agreement with PNC Bank, N.A. Each Fund may borrow under the line of credit,
provided that the Trust's borrowings do not exceed $50,000,000 in the aggregate
at any one time. Interest is charged based on outstanding borrowings at the
Federal Funds Rate plus .45%. Only the International Equity Fund utilized the
line of credit during the six months ended June 30, 1997. Average daily
borrowings for the six months ended June 30, 1997 were $6,904,444 and the
average interest rate was 5.85%. The maximum borrowing outstanding during the
six months ended June 30, 1997 was $31,600,000.

                                                                              75
<PAGE>
 
PART C: OTHER INFORMATION
- -------------------------


Item 24: Financial Statements and Exhibits
- ------------------------------------------

         (a)  Financial Statements:

                  (1) Financial Statements included in the Prospectus
                      -----------------------------------------------
                           constituting Part A of this Registration Statement
                           --------------------------------------------------

                           Financial Highlights for the six-month period ended
                           June 30, 1997 (unaudited), and for the years ended
                           December 31, 1996, December 31, 1995 and for the
                           period ended December 31, 1994 

                  (2) Financial Statements included in the Statement of
                      -------------------------------------------------
                           Additional Information constituting Part B of this
                           --------------------------------------------------
                           Registration Statement
                           ----------------------

                                    Portfolio of Investments at June 30, 1997
                                         (unaudited)
                                    Statement of Assets and Liabilities at June
                                         30, 1997 (unaudited)
                                    Statement of Operations at June 30, 1997
                                         (unaudited)
                                    Statements of Changes in Net Assets for the
                                         six months ended June 30, 1997
                                         (unaudited) and for the years ended
                                         December 31, 1996 and December 31, 1995
                                    Financial Highlights for the six months
                                         ended June 30, 1997 (unaudited) and for
                                         the years ended December 31, 1996,
                                         December 31, 1995 and for the period
                                         ended December 31, 1994
                                    Notes to Financial Statements (unaudited)
                                    Portfolio of Investments at December 31,
                                         1996
                                    Statement of Assets and Liabilities at
                                         December 31, 1996 
                                    Statement of Operations at December 31, 1996
                                    Statements of Changes in Net Assets for the
                                         years ended December 31, 1996 and
                                         December 31, 1995
                                    Financial Highlights for the years ended
                                         December 31, 1996, December 31, 1995
                                         and for the period ended December 31,
                                         1994
                                    Notes to Financial Statements
                                    Report of Independent Accountants 

          (b) Exhibits:

              Exhibit 1:            Copy of Registrant's Agreement and
                                    Declaration of Trust, as amended 
                                    November 29, 1993./1/

                                      C-1
<PAGE>
 
              Exhibit 2:            Copy of Registrant's By-Laws, as now in
                                    effect./1/

              Exhibit 3:            None.

              Exhibit 4:            None.

              Exhibit 5(a):         Copy of Investment Management Agreement
                                    between each of Registrant's seven series
                                    and MassMutual Life Insurance Company
                                    ("MassMutual")./1/

                       (b):         Copy of specimen Investment Sub-Advisory
                                    Agreements between MassMutual and David L.
                                    Babson and Company, Inc. ("Babson")./2/

                       (c):         Copy of Investment Sub-Advisory Agreement
                                    between MassMutual and HarbourView Asset
                                    Management Corporation ("HarbourView")./1/

    
              Exhibit 6(a):         Form of Amended and Restated General
                                    Distributors Agreement between the Trust and
                                    Oppenheimer Funds Distributor, Inc.
                                    ("Oppenheimer")./3/    

                       (b):         Copy of sub-distribution agreement between
                                    Oppenheimer and MML Investors Services,
                                    Inc./1/

              Exhibit 7:            None.
    
              Exhibit 8(a):         Copy of Custodian Agreement between the
                                    Trust and Investors Bank & Trust Company
                                    ("IBT")./1/     
    
                       (b):         Copy of Administrative and Shareholder
                                    Services Agreement between each of
                                    Registrant's seven series and MassMutual for
                                    the provision of administrative and
                                    shareholder services./3/     
    
                       (c):         Copy of Transfer Agency Agreement among the
                                    Trust, MassMutual and IBT./1/      

              Exhibit 9:            None.

              Exhibit 10:           Opinion of Counsel as to the legality of
                                         shares being registered is incorporated
                                         herein by reference to the Rule 24f-2
                                         Notice on Form 24f-2 with Opinion of
                                         Counsel filed electronically on
                                         February 25, 1997.

              Exhibit 11(a):        Consent of Ropes & Gray./2/

                                      C-2
<PAGE>

     
                        (b):        Consent of Coopers & Lybrand L.L.P./3/     

                        (c)-(g):    Powers of Attorney for Gary E. Wendlandt,
                                       Ronald J. Abdow, Charles J. McCarthy,
                                       John H. Southworth, Mary E. Boland./1/ 

                        (i)-(o):    Powers of Attorney for Richard H. Ayers,
                                       David E.A. Carson, Richard G. Dooley,
                                       Richard W. Greene, Beverly C.L. Hamilton,
                                       F. William Marshall, Jr., and John V.
                                       Murphy./2/

              Exhibit 12:           None.

              Exhibit 13:           None.

              Exhibit 14:           None.
    
              Exhibit 15(a):        Form of Class A Rule 12b-1 Plans./3/      
                        (b):        Form of Class Y Rule 12b-1 Plans

              Exhibit 16:           None.

              Exhibit 27:           Financial Data Schedules 
    
              Exhibit 18:           Form of Rule 18f-3 Plan./3/      

- -------------
    
/1/Incorporated by reference to Registrant's Post-Effective Amendment No. 4 to 
the Registration Statement filed via EDGAR on October 2, 1997.     

/2/Incorporated by reference to Registrant's Post-Effective Amendment No. 3 to
the Registration Statement filed via EDGAR April 28, 1997.
    
/3/Filed herewith.     

Item 25: Person Controlled by or Under Common Control with Registrant
- ---------------------------------------------------------------------

At the date of this Post-Effective Amendment to the Registration Statement,
Registrant did not, directly or indirectly, control any person.

Registrant was organized by MassMutual primarily to offer investors both the
opportunity to pursue long-term investment goals and the flexibility to respond
to changes in their investment objectives and economic and market conditions.
Initially, the Registrant will provide a vehicle for the investment of assets of
various separate investment accounts established by MassMutual and life
insurance company subsidiaries of MassMutual. The assets in such separate
accounts are, under state law, assets of the life insurance companies which have
established such accounts. Thus, at any time MassMutual and its life insurance
company subsidiaries will own such outstanding shares of Registrant's series as
are purchased with separate account assets. As a 

                                      C-3
<PAGE>
 
result, MassMutual will own substantially all of the shares of Registrant,
probably for a number of years.

The following entities are, or may be deemed to be, controlled by MassMutual
through the direct or indirect ownership of such entities' stock.

1.   CM Assurance Company, a Connecticut life, accident, disability and health
     insurer, all the stock of which is owned by MassMutual.

2.   CM Benefit Insurance Company, a Connecticut life, accident, disability and
     health insurer, all the stock of which is owned by MassMutual.

3.   C.M. Life Insurance Company, a Connecticut life, accident, disability and
     health insurer, all the stock of which is owned by MassMutual.

4.   MML Bay State Life Insurance Company, a Connecticut life and health
     insurer, all the stock of which is owned by MassMutual.

5.   MML Distributors, LLC, formerly known as Connecticut Mutual Financial
     Services, LLC, a registered broker-dealer incorporated as a limited
     liability company in Connecticut. MassMutual has a 99% ownership interest
     and G.R. Phelps & Co. has a 1% ownership interest.

6.   MassMutual Holding Company, a Delaware holding company, all the stock of
     which is owned by MassMutual.

7.   MassMutual of Ireland, Limited, incorporated in the Republic of Ireland, to
     operate a group life and health claim office for MassMutual, all of the
     stock of which is owned by MassMutual.

8.   MML Series Investment Fund, a registered open-end investment company
     organized as a Massachusetts business trust, all of the shares of which are
     owned by separate accounts of MassMutual and companies controlled by
     MassMutual.

9.   MassMutual Institutional Funds, a registered open-end investment company
     organized as a Massachusetts business trust, all of the shares of which are
     owned by MassMutual.

10.  G.R. Phelps & Co., Inc., a Connecticut corporation which formerly operated
     as a securities broker-dealer, all the stock of which is owned by
     MassMutual Holding Company.

11.  MML Investors Services, Inc., registered broker-dealer incorporated in
     Massachusetts, all the stock of which is owned by MassMutual Holding
     Company.

                                      C-4
<PAGE>
 
12.  MassMutual Holding MSC, Inc., a Massachusetts corporation, which acts as a
     holding company for MassMutual positions in investment entities organized
     outside the United States. MassMutual Holding Company owns all the
     outstanding shares of MassMutual Holding MSC, Inc.

13.  MassMutual Holding Trust I, a Massachusetts business trust, which acts as a
     holding company for certain MassMutual investment subsidiaries. MassMutual
     Holding Company owns all the outstanding shares of MassMutual Holding 
     Trust I.

14.  MassMutual Holding Trust II, a Massachusetts business trust, which acts as
     a holding company for certain MassMutual investment subsidiaries.
     MassMutual Holding Company owns all the outstanding shares of MassMutual
     Holding Trust II.

15.  MassMutual International, Inc., a Delaware corporation that acts as a
     holding company of and provides services to international insurance
     companies, all of the stock of which is owned by MassMutual Holding
     Company.

16.  MML Insurance Agency, Inc., a licensed insurance broker incorporated in
     Massachusetts, all of the stock of which is owned by MML Investors
     Services, Inc.

17.  MML Securities Corporation, a "Massachusetts Securities Corporation", all
     of the stock of which is owned by MML Investors Services, Inc.

18.  Diversified Insurance Services Agency of America, Inc., a licensed
     insurance broker incorporated in Alabama. MML Insurance Agency, Inc. owns
     all the shares of outstanding stock.

19.  Diversified Insurance Services Agency of America, Inc., a licensed
     insurance broker incorporated in Hawaii. MML Insurance Agency, Inc. owns
     all the shares of outstanding stock.

20.  MML Insurance Agency of Mississippi, P.C., a Mississippi professional
     corporation that operates as an insurance broker, all of the stock of which
     is owned by MML Insurance Agency, Inc.

21.  MML Insurance Agency of Nevada, Inc., a Nevada corporation that operates as
     an insurance broker, all of the stock of which is owned by MML Insurance
     Agency, Inc.

22.  MML Insurance Agency of Ohio, Inc., a subsidiary of MML Insurance Agency,
     Inc., is incorporated in the state of Ohio that operates as an insurance
     broker. The outstanding capital stock is controlled by MML Insurance
     Agency, Inc. through a voting trust agreement.

23.  MML Insurance Agency of Texas, Inc., a subsidiary of MML Insurance Agency,
     Inc., is incorporated in the state of Texas that operates as an insurance
     broker. The 

                                      C-5
<PAGE>
 
     outstanding capital stock is controlled by MML Insurance Agency, Inc.
     through an irrevocable proxy arrangement.

24.  MassMutual/Carlson CBO N.V., a Netherlands Antilles corporation which
     operates a collateralized bond obligation fund. MassMutual Holding MSC,
     Inc. and Carlson Investment Management Co. each own 50% of the outstanding
     shares.

25.  MassMutual Corporate Value Limited, a Cayman Islands corporation that owns
     approximately 93% of MassMutual Corporate Value Partners Limited.
     MassMutual Holding MSC, Inc. owns 46.19% of the outstanding capital stock
     of MassMutual Corporate Value Limited.

26   MassMutual Corporate Value Partners Limited, a Cayman Islands corporation
     that operates as a high yield bond fund. MassMutual Corporate Value Limited
     holds an approximately 93% ownership interest in this company.

27.  9048-5434 Quebec, Inc., a Quebec corporation, which operates as the owner
     of hotel property in Montreal, Quebec, Canada. MassMutual Holding MSC, Inc.
     owns all the shares of 9048-5434 Quebec, Inc.

28.  Antares Leveraged Capital Corp., a Delaware corporation that operates as a
     finance company. MassMutual Holding Trust I owns approximately 98.7% of the
     capital stock of Antares.

29.  Charter Oak Capital Management, Inc., a Delaware corporation that operates
     as an investment manager. MassMutual Holding Trust I owns 80% of the
     capital stock of Charter Oak.

30.  Cornerstone Real Estate Advisers, Inc., a Massachusetts equity real estate
     advisory corporation, all the stock of which is owned by MassMutual Holding
     Trust I.

31.  DLB Acquisition Corporation ("DLB") is a Delaware corporation, which serves
     as a holding company for David L. Babson and Company, Incorporated.
     MassMutual Holding Trust I owns 83.7% of the outstanding capital stock of
     DLB.

32.  Oppenheimer Acquisition Corporation ("OAC") is a Delaware corporation,
     which serves as a holding company for OppenheimerFunds, Inc. MassMutual
     Holding Trust I owns 86% of the capital stock of OAC

33.  David L. Babson and Company, Incorporated, a registered investment adviser
     incorporated in Massachusetts, all of the stock of which is owned by DLB.

34.  Babson Securities Corporation, a registered broker-dealer incorporated in
     Massachusetts, all of the stock of which is owned by David L. Babson and
     Company, Incorporated. 

                                      C-6
<PAGE>
 
35.  Babson-Stewart-Ivory International, a Massachusetts general partnership,
     which operates as a registered investment adviser. David L. Babson and
     Company Incorporated holds a 50% ownership interest in the partnership.

36.  Potomac Babson Incorporated, a Massachusetts corporation, is a registered
     investment adviser. David L. Babson and Company Incorporated owns 60% of
     the outstanding shares of Potomac Babson Incorporated.

37.  OppenheimerFunds, Inc., a registered investment adviser incorporated in
     Colorado, all of the stock of which is owned by Oppenheimer Acquisition
     Corporation.

38.  Centennial Asset Management Corporation, a Delaware corporation that serves
     as the investment adviser and general distributor of the Centennial Funds.
     OppenheimerFunds, Inc. owns all the stock of Centennial Asset Management
     Corporation.

39.  HarbourView Asset Management Corporation, a registered investment adviser
     incorporated in New York, all the stock of which is owned by
     OppenheimerFunds, Inc.

40.  MultiSource Service, Inc., a Colorado corporation that operates as a
     clearing broker, all of the stock of which is owned by OppenheimerFunds,
     Inc.

41.  OppenheimerFunds Distributor, Inc., a registered broker-dealer incorporated
     in New York, all the stock of which is owned by OppenheimerFunds, Inc.

42.  Oppenheimer Partnership Holdings, Inc., a Delaware holding company, all the
     stock of which is owned by OppenheimerFunds, Inc.

43.  Oppenheimer Real Asset Management, Inc., a commodity pool operator
     incorporated in Delaware, all the stock of which is owned by
     OppenheimerFunds, Inc.

44.  Shareholder Financial Services, Inc., a transfer agent incorporated in
     Colorado, all the stock of which is owned by OppenheimerFunds, Inc.

45.  Shareholder Services, Inc., a transfer agent incorporated in Colorado, all
     the stock of which is owned by OppenheimerFunds, Inc.

46.  Centennial Capital Corporation, a Delaware corporation that formerly
     sponsored a unit investment trust. Centennial Asset Management Corporation
     owns all the outstanding shares of Centennial Capital Corporation.

47   Cornerstone Office Management, LLC, a Delaware limited liability company
     that is 50% owned by Cornerstone Real Estate Advisers, Inc. and 50% owned
     by MML Realty Management Corporation. 

                                      C-7
<PAGE>
 
48.  Cornerstone Suburban Office Investors, LP, a Delaware limited partnership,
     which operates as a real estate operating company. Cornerstone Office
     Management, LLC holds a 1% general partnership interest in this fund and
     MassMutual holds a 99% limited partnership interest.

49.  CM Advantage, Inc., a Connecticut corporation that acts as a general
     partner in real estate limited partnerships. MassMutual Holding Trust II
     owns all of the outstanding stock.

50.  CM International, Inc., a Delaware corporation that holds a mortgage pool
     and issues collateralized mortgage obligations. MassMutual Holding Trust II
     owns all the outstanding stock of CM International, Inc.

51.  CM Property Management, Inc., a Connecticut real estate holding company,
     all the stock of which is owned by MassMutual Holding Trust II.

52.  HYP Management, Inc., a Delaware corporation which is the LLC Manager for
     MassMutual High Yield Partners LLC and owns 1.28% of the LLC units of such
     entity. MassMutual Holding Trust II owns all the outstanding stock of HYP
     Management, Inc.

53.  MMHC Investment, Inc., a Delaware corporation which is a passive investor
     in MassMutual High Yield Partners LLC. MassMutual Holding Trust II owns all
     the outstanding stock of MMHC Investment, Inc.

54.  MassMutual High Yield Partners LLC, a Delaware limited liability company,
     that operates as a high yield bond fund. MassMutual holds 5.28%, MMHC
     Investment Inc. holds 35.99%, and HYP Management, Inc. hold 1.28% for a
     total of 42.55% of the ownership interest in this company.

55.  MML Realty Management Corporation, a former property manager incorporated
     in Massachusetts, all the stock of which is owned by MassMutual Holding
     Trust II.

56.  505 Waterford Park Limited Partnership, a Delaware limited partnership,
     which holds title to an office building in Minneapolis, Minnesota. MML
     Realty Management Corporation holds a 1% general partnership interest in
     this partnership and MassMutual holds a 99% limited partnership interest.

57.  Urban Properties, Inc., a Delaware real estate holding and development
     company, all the stock of which is owned by MassMutual Holding Trust II.

58.  Westheimer 335 Suites, Inc., was incorporated in Delaware to serve as a
     general partner of the Westheimer 335 Suites Limited Partnership.
     MassMutual Holding Trust II owns all the stock of Westheimer 335 Suites,
     Inc. 

                                      C-8
<PAGE>
 
59.  Westheimer 335 Suites Limited Partnership, a Texas limited partnership of
     which Westheimer 335 Suites, Inc. is the general partner.

60.  MassMutual Internacional (Argentina) S.A., an Argentine corporation, which
     operates as a holding company. MassMutual International Inc. owns 99.9% of
     the outstanding shares and MassMutual Holding Company owns the remaining
     0.1% of the shares.

61.  MassMutual Internacional (Chile) S.A., a Chilean corporation, which
     operates as a holding company. MassMutual International Inc. owns 99.9% of
     the outstanding shares and MassMutual Holding Company owns the remaining
     0.1% of the shares.

62.  MassMutual International (Bermuda) Ltd., a Bermuda life insurance company,
     all of the stock of which is owned by MassMutual International Inc.

63.  MassMutual International (Luxembourg) S.A., a Luxembourg corporation, which
     operates as an insurance company. MassMutual International Inc. owns 99% of
     the outstanding shares and MassMutual Holding Company owns the remaining 1%
     of the shares.

64.  Mass Seguros de Vida S.A., a life insurance company incorporated in Chile.
     MassMutual Holding Company owns 33.5% of the outstanding capital stock of
     Mass Seguros de Vida S.A.

65.  MassLife Seguros de Vida S.A., a life insurance company incorporated in
     Argentina. MassMutual International Inc. owns 45% of the outstanding
     capital stock of MassLife Seguros de Vida S.A.

66   MassMutual Services, S.A., an Argentine corporation, which operates as a
     service company. MassMutual Internacional (Argentina) S.A. owns 99% of the
     outstanding shares and MassMutual International, Inc. owns 1% of the
     shares.

67.  Origen Inversiones S.A., a Chilean corporation which operates as a holding
     company. MassMutual Internacional (Chile) S.A. holds a 33.5% ownership
     interest in this corporation.

68.  Compensa Compania Seguros De Vida, a Chilean insurance company. Origen
     Inversiones S.A. owns 99% of the outstanding shares of this company.

69.  Oppenheimer Series Fund Inc., a Maryland corporation and a registered
     open-end investment company of which MassMutual and its affiliates own a
     majority of the outstanding shares issued by the fund.

70.  Oppenheimer Value Stock Fund ("OVSF) is a series of Oppenheimer Integrity
     Funds, a Massachusetts business trust. OVSF is a registered open-end
     investment company of  

                                      C-9
<PAGE>
 
     which MassMutual owns approximately 29% of the outstanding shares of
     beneficial interest.

71.  Panorama Series Fund, Inc., a registered open-end investment company
     organized as a Maryland corporation. Shares of the fund are sold only to
     MassMutual and its affiliates.

72.  The DLB Fund Group, an open-end management investment company advised by
     David L. Babson and Company Incorporated. MassMutual owns at least 25% of
     each series.


MassMutual acts as the investment adviser of the following investment companies,
and as such may be deemed to control them.

1.   MML Series Investment Fund, a registered open-end Massachusetts business
     trust, all of the shares are owned by separate accounts of MassMutual and
     companies controlled by MassMutual.

2.   MassMutual Corporate Investors, a registered closed-end Massachusetts
     business trust.

3.   MassMutual Corporate Value Partners Limited, a Cayman Islands corporation
     that operates as a high-yield bond fund. MassMutual Corporate Value Limited
     holds an approximately 93% ownership interest in this company.

4.   MassMutual High Yield Partners LLC, a Delaware limited liability company,
     that operates as a high yield bond fund. MassMutual holds 5.28%, MMHC
     Investment Inc. holds 35.99%, and HYP Management, Inc. hold 1.28% for a
     total of 42.55% of the ownership interest in this company.

5.   MassMutual Institutional Funds, a registered open-end Massachusetts
     business trust, all of the shares of which are owned by MassMutual.

6.   MassMutual Participation Investors, a registered closed-end Massachusetts
     business trust.

7.   MassMutual/Carlson CBO N.V., a Netherlands Antilles corporation which
     operates a collateralized bond obligation fund. MassMutual Holding MSC,
     Inc. and Carlson Investment Management Co. each own 50% of the outstanding
     shares. 

                                      C-10
<PAGE>
 
Item 26: Number of Holders of Securities
- ----------------------------------------
    
     As of November 15, 1997, the number of holders of record of each class of
securities of Registrant was as follows:      
<TABLE> 
<CAPTION> 

     Title of Class                 Number of Record Holders
     --------------                 ------------------------
     <S>                            <C> 
     Shares of         
     Beneficial                                1
     Interest          
</TABLE>

Item 27: Indemnification
- ------------------------

Article VIII of Registrant's Agreement and Declaration of Trust provides for the
indemnification of Registrant's Trustees and officers. Registrant undertakes to
apply the indemnification provisions of its Agreement and Declaration of Trust
in a manner consistent with Securities and Exchange Commission Release No.
IC-11330 so long as the interpretation of Section 17(h) and 17(i) of the
Investment Company Act of 1940 (the "1940 Act") set forth in such Release shall
remain in effect and be consistently applied.

Trustees and officers of Registrant are also indemnified by MassMutual pursuant
to its by-laws which apply to subsidiaries, including Registrant. No
indemnification is provided with respect to any liability to any entity which is
registered as an investment company under the 1940 Act or to the security
holders thereof, where the basis for such liability is willful misfeasance, bad
faith, gross negligence or reckless disregard of the duties involved in the
conduct of office.

MassMutual's directors' and officers' liability insurance program, which covers
Registrant's Trustees and officers, consists of two distinct coverages. The
first coverage reimburses MassMutual, subject to specified limitations, for
amounts which MassMutual is legally obligated to pay out under its
indemnification by-law, discussed above. The second coverage directly protects a
Trustee or officer of Registrant against liability from shareholder derivative
and similar lawsuits which are indemnifiable under the law. There are, however,
specific acts giving rise to liability which are excluded from this coverage.

For example, no Trustee or officer is insured against personal liability for
libel or slander, acts of deliberate dishonesty, fines or penalties, illegal
personal profit or advantage at the expense of Registrant or its shareholders,
violation of employee benefit plans, regulatory statutes, and similar acts which
would traditionally run contrary to public policy and hence reimbursement by
insurance.

                                      C-11
<PAGE>
 
MassMutual's present insurance coverage has an overall limit of $60 million
annually ($15 million of which is underwritten by National Union Fire Insurance
Company, $15 million of which is underwritten by Executive Risk Indemnity, Inc.,
$10 million of which is underwritten by Continental, Casualty Co., $5 million of
which is underwritten by Federal Insurance Co. and $15 million of which is
underwritten by Sargasso Mutual Insurance Company). There is a deductible of
$200,000 per claim under the corporate coverage. There is no deductible for
individual trustees or officers.

Insofar as indemnification for liabilities arising under the Securities Act of
1933 (the "1933 Act") may be permitted to trustees, officers and controlling
persons of Registrant pursuant to the foregoing provisions, or otherwise,
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
1933 Act, and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by Registrant
of expenses incurred or paid by a Trustee, officer or controlling person of
Registrant in the successful defense of any action, suit or proceeding) is
asserted by such Trustee, officer or controlling person in connection with the
securities being registered, Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the 1933 Act and will be governed by the
final adjudication of such issue.


Item 28: Business and Other Connections of the Investment Adviser
- -----------------------------------------------------------------

a. The Investment Adviser

MassMutual is the investment adviser for the Registrant. MassMutual is a mutual
life insurance company organized as a Massachusetts corporation which was
originally chartered in 1851. As a mutual life insurance company, MassMutual has
no shareholders. MassMutual's primary business is ordinary life insurance. It
also provides, directly or through its subsidiaries, a wide range of annuity and
disability products, and pension and pension-related products and services, as
well as investment services to individuals, and corporations and other
institutions, in all 50 states of the United States and the District of
Columbia. MassMutual is also licensed to transact business in Puerto Rico, and
six provinces of Canada, but has no export sales. Effective February 29, 1996,
Connecticut Mutual Life Insurance Company merged into MassMutual.

MassMutual's principal lines of business are (i) the Individual Line, which
provides life insurance including variable and universal life insurance,
annuities and disability income insurance to individuals and small businesses;
(ii) Pension Management, which provides group pension investment products and
administrative services, primarily to sponsors of tax qualified retirement
plans; (iii) Life and Health Benefits Management, which previously provided
group life and health insurance products and related services to corporations
and other institutions; this line was transferred to a subsidiary in December
1994, and the subsidiary was subsequently sold in March of 1996; and (iv)
MassMutual Investment Management Group, which provides advisory services for
MassMutual's general investment account and separate investment 

                                      C-12
<PAGE>
 
accounts, as well as for various closed-end and open-end investment companies
and external institutional clients, through its own staff and those of
Oppenheimer Funds Inc. and David L. Babson and Company, Inc., in which
MassMutual indirectly owns a controlling interest.

The directors and executive vice presidents of MassMutual, their positions and
their other business affiliations and business experience for the past two years
are listed below.

Directors

ROGER G. ACKERMAN, Director and Member, Auditing and Human Resources Committees

     Chairman and Chief Executive Officer (since 1996), President and Chief
     Operating Officer (1990-1996), Corning Incorporated (manufacturer of
     specialty materials, communication equipment and consumer products), One
     Riverfront Plaza, Corning, New York; Director (since 1993), Dow Corning
     Corporation (producer of silicone products), 2200 West Salzburg Road,
     Midland, Michigan; Director, The Pittson Company (mining and marketing of
     coal for electric utility and steel industries), One Pickwick Plaza,
     Greenwich, Connecticut.

JAMES R. BIRLE, Director, Chairman, Dividend Policy Committee and Member,
Investment Committee

     Chairman (since 1997), President (1994-1997) and Founder (since 1994),
     Resolute Partners, LLC (private merchant bank), 2 Greenwich Plaza, Suite
     100, Greenwich, Connecticut; Director (since 1996), IKON Office Solutions
     (diversified office products and technology solutions), 825 Duportail Road,
     Valley Forge, Pennsylvania; Director: Drexel Industries, Inc., Connecticut
     Health and Education Facilities Authority, and Transparency International;
     Trustee, Villanova University and The Sea Research Foundation; Director
     (1991-1996), Connecticut Mutual Life Insurance Company, 140 Garden Street,
     Hartford, Connecticut.

FRANK C. CARLUCCI, III, Director and Member, Board Affairs and Dividend Policy
Committees 

     Chairman (since 1993), Vice Chairman (1989-1993), The Carlyle Group
     (merchant banking corporation), 1001 Pennsylvania Avenue, N.W., Washington,
     D.C.; Director: Ashland Oil Inc. (producer of petroleum products), 1000
     Ashland Drive, Russell, Kentucky; BDM International, Inc. (professional and
     technical services to public and private sector), 7915 Jones Branch Drive,
     McLean, Virginia; General Dynamics Corporation (manufacturer of military
     equipment), 3190 Fairview Park Drive, Falls Church, Virginia; Kaman
     Corporation (diversified manufacturer), 1332 Blue Hills Avenue, Bloomfield,
     Connecticut; Northern Telecom Ltd. (digital telecommunications systems),
     2920 Matheson Boulevard East, Mississauga, Ontario, Canada; The Quaker Oats
     Company (manufacturer of food products), 321 North Clark Street, Chicago,

                                      C-13
<PAGE>
 
     Illinois; Sun Resorts Ltd., N.V.; Westinghouse Electric Corporation
     (electronic systems, electric power generating equipment and broadcasting),
     11 Stanwix Street, Pittsburgh, Pennsylvania; Chairman, Neurogen Corporation
     and Texas Biotechnology Corporation; Trustee, The Rand Corporation;
     Director (until 1997), CB Commercial Real Estate Group, Inc. (real estate
     broker subsidiary of Carlyle Holding Corporation), 533 Fremont Avenue, Los
     Angeles, California; Bell Atlantic Corporation (telecommunications), 1717
     Arch Street, Philadelphia, Pennsylvania; Chairman; Director (1989-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut.

GENE CHAO, Director and Member, Auditing and Dividend Policy Committees

     Chairman, President and Chief Executive Officer, Computer Projections, Inc.
     (computer graphics), 733 S.W. Vista Avenue, Portland, Oregon; Director
     (1990-1996), Connecticut Mutual Life Insurance Company, 140 Garden Street,
     Hartford, Connecticut. 

PATRICIA DIAZ DENNIS, Director and Member, Auditing and Human Resources
Committees

     Senior Vice President and Assistant General Counsel (since 1995), SBC
     Communications Inc. (telecommunications), 175 East Houston, San Antonio,
     Texas; Special Counsel-Communication Law Matters (1993-1995), Sullivan &
     Cromwell (law firm), 1701 Pennsylvania Avenue, N.W., Washington, D.C.;
     Trustee (since 1995), Federal Communications Bar Association Foundation;
     Trustee, Tomas Rivera Policy Institute, and Radio and Television News
     Directors Foundation; Director: National Public Radio, Reading Is
     Fundamental, and Foundation for Women's Resources; Director (1995-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut.

ANTHONY DOWNS, Director and Member, Auditing and Investment Committees

     Senior Fellow, The Brookings Institution (non-profit policy research
     center), 1775 Massachusetts Avenue, N.W., Washington, D.C.; Director: The
     Pittway Corporation (publications and security equipment), 200 South Wacker
     Drive, Suite 700, Chicago, Illinois; National Housing Partnerships
     Foundation (non-profit organization to own and manage rental housing), 1225
     Eye Street, N.W., Washington, D.C.; Bedford Property Investors, Inc. (real
     estate investment trust), 3658 Mt. Diablo Boulevard, Lafayette, California;
     General Growth Properties, Inc. (real estate investment trust), 215 Keo
     Way, Des Moines, Iowa; NAACP Legal and Educational Defense Fund, Inc.
     (civil rights organization), 99 Hudson Street, New York, New York; Trustee:
     Urban Institute (public policy research organization), 2100 M Street, N.W.,
     Washington, D.C. and Urban Land Institute (educational and research
     organization), 625 Indiana Avenue, N.W., Washington, D.C. 

                                      C-14
<PAGE>
 
JAMES L. DUNLAP, Director and Member, Human Resources and Board Affairs
Committees

     President and Chief Operating Officer (since 1996), United Meridian
     Corporation (oil exploration), 1201 Louisiana, Houston, Texas; Senior Vice
     President (1987-1996), Texaco, Inc. (producer of petroleum products), 2000
     Westchester Avenue, White Plains, New York.

WILLIAM B. ELLIS, Director and Member, Auditing and Investment Committees

     Senior Fellow (since 1995), Yale University School of Forestry and
     Environmental Studies, New Haven, Connecticut; Chairman (1983-1995) and
     Chief Executive Officer (1983-1993), Northeast Utilities (electric
     utility), 107 Selden Street, Berlin, Connecticut; Director, The Hartford
     Steam Boiler Inspection and Insurance Company (property and casualty
     insurer), One State Street, Hartford, Connecticut; Director (since 1996),
     Advest Group, Inc. (financial services holding company), 280 Trumbull
     Street, Hartford, Connecticut; Director (since 1995), Catalytica Combustion
     Systems, Inc.; Director, The National Museum of National History of the
     Smithsonian Institution, Washington, D.C.; Director (1985-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut.

ROBERT M. FUREK, Director and Member, Dividend Policy and Investment Committees

     President (1994-1996), International Distillers and Vintners, Inc.;
     President and Chief Executive Officer (1987-1996), Heublein, Inc. (beverage
     distributor), 450 Columbus Boulevard, Hartford, Connecticut; Director, The
     Dexter Corporation (producer of specialty chemicals and papers), One Elm
     Street, Windsor Locks, Connecticut; Corporator, The Bushnel Memorial,
     Hartford, Connecticut; Trustee, Colby College, Mayflower Hill Drive,
     Waterville, Maine; Director (1990-1996), Connecticut Mutual Life Insurance
     Company, 140 Garden Street, Hartford, Connecticut.

CHARLES K. GIFFORD, Director and Member, Investment and Auditing Committees

     Chairman and Chief Executive Officer (since 1995), and President
     (1989-1996), The First National Bank of Boston, and Chief Executive Officer
     (since 1995), President (1989-1996) and Chairman (1995-1996) of Bank of
     Boston Corporation (bank holding company), 100 Federal Street, Boston,
     Massachusetts; Director, Member of Audit and Compensation Committees,
     Boston Edison Co. (public utility electric company), 800 Boylston Street,
     Boston, Massachusetts. 

                                      C-15
<PAGE>
 
WILLIAM N. GRIGGS, Director, Chairman, Auditing Committee and Member, Investment
Committee

     Managing Director, Griggs & Santow Inc. (financial consultants), 75 Wall
     Street, New York, New York; Director, T/SF Communications, Inc.
     (diversified publishing and communications company), Tulsa, Oklahoma.

GEORGE B. HARVEY, Director, Chairman, Human Resources Committee and Member,
Board Affairs Committee

     Retired; Chairman, President and Chief Executive Officer (1983-1996),
     Pitney Bowes, Inc. (office machines manufacturer), One Elmcroft Road,
     Stamford, Connecticut; Director: Merrill Lynch & Co., Inc. (financial
     services holding company), 250 Vesey Street, World Financial Center, North
     Tower, New York, New York; The McGraw-Hill Companies, Inc. (multimedia
     publishing and information services), 1221 Avenue of the Americas, New
     York, New York; Stamford Hospital, Stamford, Connecticut; Pfizer, Inc.
     (pharmaceutical and health-care products), 235 East 42nd Street, New York,
     New York; The Catalyst (until 1997); Member, Board of Overseers, Wharton
     School of Finance, University of Pennsylvania; Director (1989-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut

BARBARA B. HAUPTFUHRER, Director and Member, Board Affairs and Investment
Committees

     Director and Member, Compensation, Nominating and Audit Committees, The
     Vanguard Group of Investment Companies including among others the following
     funds: Vanguard/Windsor Fund, Vanguard/Wellington Fund, Vanguard/Morgan
     Growth Fund, Vanguard/Wellesley Income Fund, Vanguard/Gemini Fund,
     Vanguard/Explorer Fund, Vanguard Municipal Bond Fund, Vanguard Fixed Income
     Securities Fund, Vanguard Index Trust, Vanguard World Fund, Vanguard/Star
     Fund, Vanguard Ginnie Mae Fund, Vanguard/Primecap Fund, Vanguard
     Convertible Securities Fund, Vanguard Quantitative Fund, Vanguard/Trustees
     Commingled Equity Fund, Vanguard/Trustees Commingled Fund-International,
     Vanguard Money Market Trust, Vanguard/Windsor II, Vanguard Asset Allocation
     Fund and Vanguard Equity Income Fund (principal offices, Drummers Lane,
     Valley Forge, Pennsylvania); Director, Chairman of Retirement Benefits
     Committee and Pension Fund Investment Review - USA and Canada and Member,
     Audit, Finance and Executive Committees, The Great Atlantic & Pacific Tea
     Company, Inc. (operator of retail food stores), 2 Paragon Drive, Montvale,
     New Jersey; Director, Chairman of Nominating Committee and Member,
     Compensation Committee, Knight-Ridder, Inc. (publisher of daily newspapers
     and operator of cable television and business information systems), One
     Herald Plaza, Miami, Florida; Director and Member, Compensation Committee,
     Raytheon Company (electronics manufacturer), 141 Spring Street, Lexington,
     Massachusetts; Director and Member, Executive Committee and Chairman, Human
     Resources and Independent Directors Committees, IKON Office

                                      C-16
<PAGE>
 
     Solutions (diversified office products and technology solutions), 825
     Duportail Road, Valley Forge, Pennsylvania.

SHELDON B. LUBAR, Director, Chairman, Board Affairs Committee and Member,
Investment Committee

     Chairman, Lubar & Co. Incorporated (investment management and advisory
     company), 777 East Wisconsin Avenue, Milwaukee, Wisconsin; Chairman and
     Director, The Christiana Companies, Inc. (real estate development);
     Director: Firstar Bank, Firstar Corporation (bank holding company), SLX
     Energy, Inc. (oil and gas exploration); Member, Advisory Committee, Venture
     Capital Fund, L.P. (principal offices, 777 East Wisconsin Avenue,
     Milwaukee, Wisconsin); Director: Grey Wolf Drilling Co. (contract oil and
     gas drilling), 2000 Post Oak Boulevard, Houston, Texas; Marshall Erdman and
     Associates, Inc. (design, engineering, and construction firm), 5117
     University Avenue, Madison, Wisconsin; MGIC Investment Corporation
     (investment company), MGIC Plaza, 111 E. Kilbourn Avenue, Milwaukee,
     Wisconsin; Ameritech, Inc. (regional holding company for telephone
     companies), 30 South Wacker Drive, Chicago, Illinois, Director (since
     1995), Energy Ventures, Inc., 5 Post Oak Park, Houston, Texas; Director
     (1989-1995), Prideco, Inc. (drill collar manufacturer), 6039 Thomas Road,
     Houston, Texas.

WILLIAM B. MARX, JR., Director and Member, Dividend Policy and Board Affairs
Committees

     Consultant (1996-1997); Senior Executive Vice President (1996), Lucent
     Technologies, Inc. (public telecommunications systems and software), 600
     Mountain Road, Murray Hill, New Jersey; Executive Vice President and Chief
     Executive Officer, Multimedia Products Group (1994-1995), AT&T (global
     communications and network computing company), 295 North Maple Avenue,
     Basking Ridge, New Jersey; Director (since 1996), California Microwave,
     Inc., Redwood City, California; Member, National Board of Directors, Junior
     Achievement, Colorado Springs, Colorado; Member (since 1996), Advisory
     Council, Graduate School of Business, Stanford University, Stanford,
     California; Chairman, Executive Committee (since 1996), National Minority
     Supplier Development Council, Inc., 15 West 39th Street, New York, New
     York.

JOHN F. MAYPOLE, Director and Member, Board Affairs and Human Resources
Committees

     Managing Partner, Peach State Real Estate Holding Company (real estate
     investment company), P.O. Box 1223, Toccoa, Georgia; Consultant to
     institutional investors; Co-owner of family businesses (including Maypole
     Chevrolet-Geo, Inc. and South Georgia Car Rentals, Inc.); Director (since
     1996), Coating Technologies International; Director, Chairman, Finance
     Committee and Member, Executive Committee and Human Resources Committee on
     Directors, Bell Atlantic Corporation (telecommunications), 1717 Arch
     Street, Philadelphia, Pennsylvania; Director and Chairman, Compensation

                                      C-17
<PAGE>
 
     Committee, Briggs Industries, Inc. (plumbing fixtures), 4350 W. Cypress
     Street, Tampa, Florida; Director, Chairman, Audit Committee and Member,
     Compensation Committee, Blodgett Corporation; Director, Chairman, Products
     Committee and Member, Compensation and Audit Committee (until 1996), Igloo
     Corporation (portable coolers), 1001 W. Sam Houston Parkway North, Houston,
     Texas; Director and Member, Senior Management Committee, Dan River, Inc.
     (textile manufacturer), 2291 Memorial Drive, Danville, Virginia; Director,
     Davies, Turner & Company; Director (1989-1996), Connecticut Mutual Life
     Insurance Company, 140 Garden Street, Hartford, Connecticut.

DONALD F. MCCULLOUGH, Director and Member, Dividend Policy and Auditing
Committees

     Retired (since 1988); former Chairman and Chief Executive Officer, Collins
     & Aikman Corp. (manufacturer of textile products), 210 Madison Avenue, New
     York, New York; Director (1971-1996); Bankers Trust New York Corp. (bank
     holding company) and Bankers Trust Company (principal offices, 280 Park
     Avenue, New York, New York); Director (1975-1996), Melville Corporation
     (specialty retailer), One Theall Road, Rye, New York.

JOHN J. PAJAK, President and Chief Operating Officer, Director and Member,
Dividend Policy and Investment Committees

     President, Director and Chief Operating Officer (since 1996), Vice Chairman
     and Chief Administrative Officer (1996), Executive Vice President
     (1987-1996) of MassMutual; Director (since 1994), MassMutual Holding
     Company (wholly-owned holding company subsidiary of MassMutual); Trustee
     (since 1996), MassMutual Holding Trust I (wholly-owned holding company
     subsidiary of MassMutual Holding Company); Director (since 1996),
     MassMutual International Inc. (wholly-owned subsidiary of MassMutual
     Holding Company to act as service provider for international insurance
     companies); Director (1994-1996), MassMutual Holding Company Two, Inc.
     (former wholly-owned holding company subsidiary of MassMutual); MassMutual
     Holding Company Two MSC, Inc. (former wholly-owned holding company
     subsidiary of MassMutual Holding Company Two, Inc.); and Mirus Insurance
     Company (formerly MML Pension Insurance Company, a wholly-owned insurance
     subsidiary of MassMutual Holding Company Two MSC, Inc.) (principal offices,
     1295 State Street, Springfield, Massachusetts); Director (1995-1996),
     National Capital Health Plan, Inc. (health maintenance organization),
     Washington, D.C.

THOMAS B. WHEELER, Chairman and Chief Executive Officer, Chairman, Investment
Committee and Member, Dividend Policy and Board Affairs Committees

     Chairman (since 1996), Chief Executive Officer (since 1988), and President
     (1987-1996) of MassMutual; Chairman (since 1996), MassMutual Holding Trust
     I (wholly-owned holding company subsidiary of MassMutual Holding Company);
     Director (since 1996), MassMutual International Inc. (wholly-owned
     subsidiary of MassMutual Holding Company to act as service provider for
     international insurance companies); Chairman and 

                                      C-18
<PAGE>
 
     Chief Executive Officer (since 1995), DLB Acquisition Corporation (holding
     company for investment advisers); Chairman of the Board of Directors (1994-
     1996), Mirus Insurance Company (formerly MML Pension Insurance Company, a
     wholly-owned insurance subsidiary of MassMutual Holding Company Two MSC,
     Inc.) (principal offices, 1295 State Street, Springfield, Massachusetts);
     Director, The First National Bank of Boston and Bank of Boston Corporation
     (bank holding company), 100 Federal Street, Boston, Massachusetts and
     Massachusetts Capital Resources Company, 545 Boylston Street, Boston,
     Massachusetts; Chairman and Director, Oppenheimer Acquisition Corp. (parent
     of OppenheimerFunds, Inc., an investment management company), Two World
     Trade Center, New York, New York; Director (since 1993), Textron, Inc.
     (diversified manufacturing company), 40 Westminster Street, Providence,
     Rhode Island; Chairman of the Board of Directors (1992-1995), Concert
     Capital Management, Inc. (former wholly-owned investment advisory
     subsidiary of DLB Acquisition Corporation), One Memorial Drive, Cambridge,
     Massachusetts.

ALFRED M. ZEIEN, Director and Member, Board Affairs and Human Resources
Committees

     Chairman and Chief Executive Officer, The Gillette Company (manufacturer of
     personal care products), Prudential Tower Building, Boston, Massachusetts;
     Director: Polaroid Corporation (manufacturer of photographic products), 549
     Technology Square, Cambridge, Massachusetts; Repligen Corporation
     (biotechnology), One Kendall Square, Cambridge, Massachusetts; Bank of
     Boston Corporation (bank holding company), 100 Federal Street, Boston,
     Massachusetts; and Raytheon Corporation (electronics manufacturer), 141
     Spring Street, Lexington, Massachusetts; Trustee, University Hospital of
     Boston, Massachusetts; Trustee, Marine Biology Laboratory and Woods Hole
     Oceanographic Institute, Woods Hole, Massachusetts.

Executive Vice Presidents

LAWRENCE V. BURKETT, JR., Executive Vice President and General Counsel

     Executive Vice President and General Counsel (since 1993) of MassMutual;
     President, Chief Executive Officer and Director (since 1996), CM Assurance
     Company, CM Benefit Insurance Company, C.M. Life Insurance Company and MML
     Bay State Life Insurance Company (wholly-owned insurance company
     subsidiaries of MassMutual); Director (since 1996), MassMutual Holding MSC,
     Inc. and Trustee (since 1996), MassMutual Holding Trust I and MassMutual
     Holding Trust II (wholly-owned holding company subsidiaries of MassMutual
     Holding Company); Director (since 1997), MML Securities Corporation (a
     wholly-owned subsidiary of MML Investors Services, Inc. that is a
     "Massachusetts Securities Corporation"); Director (since 1996): MassMutual
     International Inc. (wholly-owned subsidiary of MassMutual Holding Company
     to act as service provider for international insurance companies); G.R.
     Phelps, Inc. (wholly-owned broker-dealer subsidiary of MassMutual Holding
     Company); CM Advantage Inc.(wholly-owned subsidiary of MassMutual Holding
     Trust II to act as general partner in real estate 

                                      C-19
<PAGE>
 
     limited partnerships); Director, MassMutual Holding Company (wholly-owned
     holding company subsidiary of MassMutual); Director (1994-1996), MassMutual
     Holding Company Two, Inc. (former wholly-owned holding company subsidiary
     of MassMutual), MassMutual Holding Company Two MSC, Inc. (former wholly-
     owned holding company subsidiary of MassMutual Holding Company Two, Inc.)
     and Mirus Insurance Company (formerly MML Pension Insurance Company, a
     wholly-owned insurance subsidiary of MassMutual Holding Company Two MSC,
     Inc.) (principal offices, 1295 State Street, Springfield, Massachusetts);
     Chairman and Director (since 1996), MML Investors Services, Inc. (wholly-
     owned broker-dealer subsidiary of MassMutual Holding Company), 1414 Main
     Street, Springfield, Massachusetts; Director, Cornerstone Real Estate
     Advisers, Inc. (wholly-owned real estate investment adviser subsidiary of
     MassMutual Holding Company), One Financial Plaza, Suite 1700, Hartford,
     Connecticut; Vice President (since 1996) and Director, Sargasso Mutual
     Insurance Co., Ltd., Victoria Hall, Victoria Street, Hamilton, Bermuda;
     Director, MassMutual of Ireland, Ltd. (wholly-owned subsidiary of
     MassMutual that formerly provided group insurance claim services), One
     Earlsfort Centre, Hatch Street, Dublin, Ireland; Chairman (1994-1996),
     Director (1993-1996), MML Reinsurance (Bermuda) Ltd. (wholly-owned property
     and casualty reinsurance subsidiary of MassMutual Holding Company) and
     Director (since 1995), MassMutual International (Bermuda) Ltd. (wholly-
     owned subsidiary of MassMutual Holding Company that distributes variable
     insurance products in overseas markets) (principal offices, 41 Cedar
     Avenue, Hamilton, Bermuda).

JOHN B. DAVIES, Executive Vice President

     Executive Vice President (since 1994) of MassMutual; Director (since 1996),
     CM Assurance Company, CM Benefit Insurance Company, C.M. Life Insurance
     Company and MML Bay State Life Insurance Company (wholly-owned insurance
     company subsidiaries of MassMutual); Director (since 1996), MassMutual
     Holding MSC, Inc. and Trustee (since 1996), MassMutual Holding Trust II
     (wholly-owned holding company subsidiaries of MassMutual Holding Company)
     (principal offices, 1295 State Street, Springfield, Massachusetts);
     Director, MML Investors Services, Inc. (wholly-owned broker-dealer
     subsidiary of MassMutual Holding Company), MML Insurance Agency, Inc.
     (wholly-owned subsidiary of MML Investors Services, Inc.), MML Insurance
     Agency of Ohio, Inc. (subsidiary of MML Insurance Agency, Inc.); Director
     (since 1995), MML Insurance Agency of Nevada, Inc. (subsidiary of MML
     Insurance Agency, Inc.); Director (since 1996), MML Insurance Agency of
     Mississippi, P.C., DISA Insurance Services of America, Inc. (Alabama), and
     Diversified Insurance Services of America, Inc. (Hawaii) (subsidiaries of
     MML Insurance Agency, Inc.) (principal offices, 1414 Main Street,
     Springfield, Massachusetts); Director: Cornerstone Real Estate Advisers,
     Inc. (wholly-owned real estate investment adviser subsidiary of MassMutual
     Holding Company), One Financial Plaza, Suite 1700, Hartford, Connecticut;
     and Life Underwriter Training Council, 7625 Wisconsin Avenue, Bethesda,
     Maryland.

                                      C-20
<PAGE>
 
DANIEL J. FITZGERALD, Executive Vice President

     Executive Vice President (since 1994), Corporate Financial Operations
     (1994-1997)of MassMutual; Director (since 1996), President and Chief
     Executive Officer (since 1997) MassMutual International Inc. (wholly-owned
     subsidiary of MassMutual Holding Company to act as service provider for
     international insurance companies); Director (since 1996), CM Assurance
     Company, CM Benefit Insurance Company, and C.M. Life Insurance Company
     (wholly-owned insurance company subsidiaries of MassMutual); Antares
     Leveraged Capital Corp. (finance company); CM Advantage Inc. and Westheimer
     335 Suites, Inc. (wholly-owned subsidiaries of MassMutual Holding Trust II
     to act as general partners in real estate limited partnerships); HYP
     Management, Inc. (wholly-owned subsidiary of MassMutual Holding Trust II to
     act as managing member of MassMutual High Yield Partners LLC); MMHC
     Investment, Inc. (wholly-owned subsidiary of MassMutual Holding Trust II);
     MassMutual Holding MSC, Inc. (wholly-owned holding company subsidiary of
     MassMutual Holding Company); Trustee (since 1996), MassMutual Holding Trust
     I and MassMutual Holding Trust II (wholly-owned holding company
     subsidiaries of MassMutual Holding Company); Director (since 1995), DLB
     Acquisition Corporation (holding company for investment advisers); Vice
     President and Director (1993-1997), MassMutual Holding Company
     (wholly-owned holding company subsidiary of MassMutual); Director, MML Bay
     State Life Insurance Company (wholly-owned insurance subsidiary of
     MassMutual); and MML Realty Management Corporation (wholly-owned real
     estate management subsidiary of MassMutual Holding Company); Vice President
     and Director (1994-1996), MassMutual Holding Company Two, Inc. and
     MassMutual Holding Company Two MSC, Inc. (former direct and indirect
     wholly-owned holding company subsidiaries of MassMutual); Director
     (1994-1996), Mirus Insurance Company (formerly MML Pension Insurance
     Company, a wholly-owned insurance subsidiary of MassMutual Holding Company
     Two MSC, Inc.); Director (1994-1995), MML Real Estate Corporation
     (wholly-owned real estate management subsidiary of MassMutual Holding
     Company) (principal offices, 1295 State Street, Springfield,
     Massachusetts); Director (1994-1996), Concert Capital Management, Inc.
     (former investment advisory subsidiary of DLB Acquisition Corporation), One
     Memorial Drive, Cambridge, Massachusetts; Director and Member, Compensation
     Committee, Cornerstone Real Estate Advisers, Inc., One Financial Plaza,
     Suite 1700, Hartford, Connecticut; Director, and Member, Audit and
     Compensation Committees, MML Investors Services, Inc. (wholly-owned broker
     dealer subsidiary of MassMutual Holding Company); Director, MML Insurance
     Agency, Inc. (wholly-owned subsidiary of MML Investors Services, Inc.);
     Director (since 1996), MML Insurance Agency of Ohio, Inc., MML Insurance
     Agency of Nevada, Inc., MML Insurance Agency of Mississippi, P.C., DISA
     Insurance Services of America, Inc. (Alabama), and Diversified Insurance
     Services of America, Inc. (Hawaii) (subsidiaries of MML Insurance Agency,
     Inc.) (principal offices, 1414 Main Street, Springfield, Massachusetts);
     Director, MassMutual of Ireland, Ltd. (wholly-owned subsidiary of
     MassMutual that formerly provided group insurance claim services), One
     Earlsfort Centre, Hatch Street, Dublin, Ireland.

                                      C-21
<PAGE>
 
JOHN V. MURPHY, Executive Vice President
    
     Executive Vice President (since 1997) of MassMutual; Executive Vice
     President, Director and Chief Operating Officer (1995-1997), David L.
     Babson and Company Incorporated (wholly-owned investment advisory
     subsidiary of DLB Acquisition Corporation), Chief Operating Officer
     (1993-1996), Concert Capital Management, Inc. (wholly-owned investment
     advisory subsidiary of DLB Acquisition Corporation), (principal offices,
     One Memorial Drive, Cambridge, Massachusetts); Senior Vice President and
     Director (1995-1997), Potomac Babson Incorporated (investment advisory
     subsidiary of David L. Babson and Company Incorporated), New York, New
     York; Director and Senior Vice President (since 1995), DLB Acquisition
     Corporation (holding company for investment advisers) and Trustee (since
     1997), MassMutual Institutional Funds (open-end investment company)
     (principal offices, 1295 State Street, Springfield, Massachusetts); 
     Director, Emerald Isle Bancorp and Hibernia Savings Bank (wholly-owned 
     subsidiary of Emerald Isle Bancorp).     

GARY E. WENDLANDT, Executive Vice President and Chief Investment Officer

     Chief Investment Officer and Executive Vice President of MassMutual;
     Chairman (since 1995), Trustee (since 1986) and President (1983-1995),
     MassMutual Corporate Investors and Chairman (since 1995), Trustee (since
     1988) and President (1988-1995), MassMutual Participation Investors
     (closed-end investment companies); Chairman (since 1995), Vice Chairman
     (1993-1995) and Trustee, MML Series Investment Fund (open-end investment
     company); Chairman, Chief Executive Officer and Member, Investment Pricing
     Committee, MassMutual Institutional Funds (open-end investment company);
     Advisory Board Member (since 1996), MassMutual High Yield Partners LLC
     (high yield bond fund); Chairman and President (since 1996), MassMutual
     Holding MSC, Inc. and MassMutual Holding Trust II (wholly-owned holding
     company subsidiaries of MassMutual Holding Company); Chairman (since 1996):
     Antares Leveraged Capital Corp. (finance company); HYP Management, Inc.
     (wholly-owned subsidiary of MassMutual Holding Trust II to act as managing
     member of MassMutual High Yield Partners LLC); and MMHC Investment, Inc.
     (wholly-owned subsidiary of MassMutual Holding Trust II); President and
     Trustee (since 1996), MassMutual Holding Trust I (wholly-owned holding
     company subsidiary of MassMutual Holding Company); Vice Chairman and
     Director (since 1996), MassMutual International Inc. (wholly-owned
     subsidiary of MassMutual Holding Company to act as service provider for
     international insurance companies); Director (since 1996), CM Advantage
     Inc. (wholly-owned subsidiary of MassMutual Holding Trust II to act as
     general partner in real estate limited partnerships); President and
     Director (since 1995), DLB Acquisition Corporation (holding company for
     investment advisers); Chairman, Chief Executive Officer, President and
     Director, MassMutual Holding Company (wholly-owned holding company
     subsidiary of MassMutual); Chairman and Director, MML Realty Management
     Corporation (wholly-owned real estate management subsidiary of MassMutual
     Holding Company); Chairman (1994-1995) and Director (1993-1995), MML Real
     Estate Corporation (wholly-owned real estate management subsidiary of
     MassMutual Holding Company) Chairman, President and Chief Executive Officer
     (1994-1996), MassMutual 

                                      C-22
<PAGE>
 
     Holding Company Two, Inc. (former wholly-owned holding company subsidiary
     of MassMutual); Chairman and President (1994-1996), Chief Executive Officer
     (1995-1996), MassMutual Holding Company Two MSC, Inc. (former wholly-owned
     holding company subsidiary of MassMutual Holding Company Two, Inc.);
     (principal offices, 1295 State Street, Springfield, Massachusetts);
     Chairman and Member, Executive and Compensation Committees (since 1994),
     Member, Audit Committee (since 1995), and Chief Executive Officer (1994-
     1996), Cornerstone Real Estate Advisers, Inc. (wholly-owned real estate
     investment advisory subsidiary of MassMutual Holding Trust I), One
     Financial Plaza, Suite 1700, Hartford, Connecticut; President and Chief
     Executive Officer (1994-1996) and Director (1992-1996), Concert Capital
     Management, Inc.(former investment advisory subsidiary of DLB Acquisition
     Corporation) One Memorial Drive, Cambridge, Massachusetts; Director,
     Oppenheimer Acquisition Corporation (parent of OppenheimerFunds, Inc., an
     investment management company), Two World Trade Center, New York, New York;
     Supervisory Director, MassMutual/Carlson CBO N.V. (collateralized bond
     fund), 14 John Gorsiraweg, Willemstad, Curacao, Netherlands Antilles;
     Director, Merrill Lynch Derivative Products, Inc., World Financial Center,
     North Tower, New York, New York; MassMutual Corporate Value Partners
     Limited (investor in debt and equity securities) and MassMutual Corporate
     Value Limited (parent of MassMutual Corporate Value Partners Limited)
     (principal offices, c/o BankAmerica Trust and Banking Corporation, Box
     1092, George Town, Grand Cayman, Cayman Islands, British West Indies);
     Director (since 1995), Mass Seguros de Vida, S.A., Huerfanos No. 770,
     Santiago, Chile; President and Director (since 1995), MassMutual
     International (Bermuda) Ltd. (wholly-owned subsidiary of MassMutual Holding
     Company that distributes variable insurance products in overseas markets),
     41 Cedar Avenue, Hamilton, Bermuda.

JOSEPH M. ZUBRETSKY, Executive Vice President And Chief Financial Officer

     Executive Vice President and Chief Financial Officer (since 1997) of
     MassMutual; Chief Financial Officer (1996-1997) Healthsource, Hooksett, New
     Hampshire; Partner (1990-1996), Coopers & Lybrand LLC (certified public
     accountants), Hartford, Connecticut; Director (since 1997): Antares
     Leverage Capital Corp. (finance company), Chicago, Illinois; DLB
     Acquisition Corporation (holding company for investment adviser);
     MassMutual Holding Company (wholly-owned holding company subsidiary of
     MassMutual); MassMutual International, Inc. (wholly-owned subsidiary of
     MassMutual Holding Company to act as service provider for international
     insurance companies) (principal offices, 1295 State Street, Springfield,
     Massachusetts); Oppenheimer Acquisition Corporation (parent of
     OppenheimerFunds, Inc., an investment management company), Two World Trade
     Center, New York, New York.

b. The Investment Sub-Advisers

The directors and executive officers of Babson, their positions and their other
business affiliations and business experience for the past two years are as
follows:

                                      C-23
<PAGE>
 
Directors and Executive Officers

HANI K. FINDAKLY, Director

Director (since 1996), David L. Babson and Company, Inc., One Memorial Drive,
Cambridge, Massachusetts; President (since 1996), Potomac Babson Inc.
(registered investment adviser), 1290 Avenue of the Americas, New York, New
York; President (1989-1995), Potomac Capital, Inc. (registered investment
adviser), 1290 Avenue of the Americas, New York, New York.

RONALD E. GWOZDZ, Director and Executive Vice President

Director (since 1996), Executive Vice President (since 1996) and Senior Vice
President (1991-1996), David L. Babson and Company, Inc., One Memorial Drive,
Cambridge, Massachusetts.

JAMES W. MACALLEN, Director and Executive Vice President

Director and Executive Vice President (since 1996), David L. Babson and Company,
Inc., One Memorial Drive, Cambridge, Massachusetts; Senior Vice President
(1996), Concert Capital Management, Inc. (former investment advisory subsidiary
of DLB Acquisition Corporation), One Memorial Drive, Cambridge, Massachusetts;
Principal (1994-1995), Hagler, Mastrovita & Hewitt (investment counsel), 225
Franklin Street, Boston, Massachusetts.

EDWARD L. MARTIN, Director and Executive Vice President

Director (since 1990), Executive Vice President (since 1995) and Senior Vice
President (1988-1995), David L. Babson and Company, Inc., One Memorial Drive,
Cambridge, Massachusetts; Director and Senior Vice President (since 1996),
Potomac Babson Inc. (registered investment adviser), 1290 Avenue of the
Americas, New York, New York.

PETER C. SCHLIEMANN, Director and Executive Vice President

Executive Vice President (since 1992), Senior Vice President (1984-1992) and
Director (since 1982), David L. Babson and Company, Inc., One Memorial Drive,
Cambridge, Massachusetts; Director (1996), Concert Capital Management, Inc.
(former investment advisory subsidiary of DLB Acquisition Corporation), One
Memorial Drive, Cambridge, Massachusetts.

FRANK L. TARANTINO, Senior Vice President, Clerk and Chief Operating Officer

Senior Vice President, Clerk and Chief Operating Officer (since 1997), David L.
Babson and Company, Inc., One Memorial Drive, Cambridge, Massachusetts;
President (1993-1997), Liberty Securities Corporation (broker-dealer), 600
Atlantic Avenue, Boston, Massachusetts.

PETER C. THOMPSON, Director and President

                                      C-24
<PAGE>
 
President and Director (since 1983), David L. Babson and Company, Inc., One
Memorial Drive, Cambridge, Massachusetts.; Director (1996), Concert Capital
Management, Inc. (former investment advisory subsidiary of DLB Acquisition
Corporation), One Memorial Drive, Cambridge, Massachusetts; Director (since
1996), Potomac Babson Inc. (registered investment adviser) 1290 Avenue of the
Americas, New York, New York.

JONATHAN B. TREAT, Director and Senior Vice President

Director and Senior Vice President (since 1992), David L. Babson and Company,
Inc., One Memorial Drive, Cambridge, Massachusetts.

ROLAND W. WHITRIDGE, Director and Senior Vice President

Director (since 1990) and Senior Vice President (since 1992), David L. Babson
and Company, Inc., One Memorial Drive, Cambridge, Massachusetts.

HarbourView is the investment sub-adviser for the International Equity Fund of
the Registrant. HarbourView is a wholly owned subsidiary of OppenheimerFunds,
Inc. and was incorporated in the State of New York on April 17, 1986.

The directors and executive vice presidents of HarbourView, their positions and
their other business affiliations and business experience for the past two years
are as follows:

BRIDGET A. MACASKILL,  President, Chief Executive Officer and Director

President, Chief Executive Officer and a Director of OppenheimerFunds, Inc.
("OFI") and HarbourView Asset Management Corporation; Chairman and Director of
Shareholder Services Inc. ("SSI") and Shareholder Financial Services, Inc.
("SFSI"); President and a Director of Oppenheimer Acquisition Corp. ("OAC") and
Oppenheimer Partnership Holdings, Inc., a holding company subsidiary of OFI; a
Director of Oppenheimer Real Asset Management, Inc.; a director of the NASDAQ
Stock Market, Inc. and of Hillsdown Holding plc (a U.K. food company); formerly
an Executive Vice President of OFI.

ANDREW J. DONOHUE,  Executive Vice President, General Counsel and Director

Executive Vice President, General Counsel and a Director of OFI, the
OppenheimerFunds Distributor, Inc., SSI, SFSI, Oppenheimer Partnership Holdings,
Inc. and MultiSource Services, Inc. (a broker-dealer); President and a Director
of Centennial Asset Management Corporation; President and a Director of
Oppenheimer Real Asset Management, Inc.; General Counsel of OAC; and officer of
other Oppenheimer Funds.

ROBERT C. DOLL, JR. Executive Vice President

Executive Vice President and a Director of OFI; Executive Vice President of
HarbourView; Vice President and a Director of OAC; an officer of other
Oppenheimer Funds.

                                      C-25
<PAGE>
 
Item 29: Principal Underwriters
- -------------------------------

     (a)   OppenheimerFunds Distributor, Inc. is the General Distributor of
the Trust's shares and is also general distributor of the following open-end
management investment companies:

           1.    The "Denver-Based" Oppenheimer funds.  The address for these 
                 -------------------------------------
                 funds is 6803 South Tucson Way, Englewood, CO  80112.

                 Centennial America Fund, L.P.
                 Centennial California Tax Exempt Trust
                 Centennial Government Trust
                 Centennial Money Market Trust
                 Centennial New York Tax Exempt Trust
                 Centennial Tax Exempt Trust
                 Daily Cash Accumulation Fund, Inc.
                 Oppenheimer Cash Reserves
                 Oppenheimer Champion Income Fund
                 Oppenheimer Equity Income Fund
                 Oppenheimer Limited-Term Government Fund
                 Oppenheimer Integrity Funds (consisting of the following 
                   series:)
                             Oppenheimer Bond Fund
                             Oppenheimer International Bond Fund
                             Oppenheimer High Yield Fund
                 Oppenheimer Main Street Funds, Inc.(R)
                 (consisting of the following 2 series:)
                             Oppenheimer Main Street Income & Growth Fund
                             Oppenheimer Main Street California Municipal Fund
                 Oppenheimer Real Asset Fund
                 Oppenheimer Strategic Income Fund
                 Oppenheimer Municipal Fund
                 (consisting of the following 2 series:)
                             Oppenheimer Insured Municipal Fund
                             Oppenheimer Intermediate Municipal Fund
                 Oppenheimer Total Return Fund, Inc.
                 Oppenheimer Total Return Fund, Inc. Capital Accumulation Plan
                 Oppenheimer Variable Account Funds
                 (consisting of the following 9 series:)
                             Oppenheimer Money Fund 
                             Oppenheimer High Income Fund
                             Oppenheimer Bond Fund
                             Oppenheimer Capital Appreciation Fund
                             Oppenheimer Growth Fund

                                      C-26
<PAGE>
 
                             Oppenheimer Multiple Strategies Fund
                             Oppenheimer Growth & Income Fund
                             Oppenheimer Global Securities Fund
                             Oppenheimer Strategic Bond Fund
                 Panorama Series Fund, Inc.
                 (consisting of the following 7 series:)
                             Total Return Portfolio
                             Growth Portfolio
                             International Equity Portfolio
                             LifeSpan Capital Appreciation Portfolio
                             LifeSpan Balanced Portfolio
                             LifeSpan Diversified Income Portfolio
                             Government Securities Portfolio
                 The New York Tax-Exempt Income Fund, Inc.

           2.    The "New York-Based" Oppenheimer funds.  The address for these
                 ---------------------------------------
                 funds is 2 World Trade Center, New York, NY 10048-0203.
                 Oppenheimer California Municipal Fund 
                 Oppenheimer Capital Appreciation Fund
                 Oppenheimer Developing Markets Fund 
                 Oppenheimer Discovery Fund
                 Oppenheimer Enterprise Fund
                 Oppenheimer Global Fund
                 Oppenheimer Global Growth & Income Fund
                 Oppenheimer Gold & Special Minerals Fund
                 Oppenheimer Growth Fund
                 Oppenheimer International Growth Fund
                 Oppenheimer Money Market Fund, Inc.
                 Oppenheimer Multiple Strategies Fund
                 Oppenheimer World Bond Fund
                 Oppenheimer Multi-Sector Income Trust
                 Oppenheimer Multi-State Municipal Trust
                 (consisting of the following 3 series:)
                             Oppenheimer Florida Municipal Fund
                             Oppenheimer New Jersey Municipal Fund
                             Oppenheimer Pennsylvania Municipal Fund
                 Oppenheimer New York Municipal Fund
                 Oppenheimer Series Fund, Inc.
                 (consisting of the following 5 series:)
                             Oppenheimer Disciplined Allocation Fund
                             Oppenheimer Disciplined Value Fund
                             Oppenheimer LifeSpan Growth Fund
                             Oppenheimer LifeSpan Balanced Fund
                             Oppenheimer LifeSpan Income Fund

                                      C-27
<PAGE>
 
                 Oppenheimer Municipal Bond Fund
                 Oppenheimer U.S. Government Trust

           3.    The "Quest" Oppenheimer Funds. OpCap Advisors (previously named
                 -----------------------------
                 Quest for Value Advisors) is sub-adviser. The address for these
                 funds is 2 World Trade Center, New York, NY 10048-0203.

                 Oppenheimer Quest Capital Value Fund, Inc.
                 Oppenheimer Quest Value Fund, Inc.
                 Oppenheimer Quest for Value Funds
                 (consisting of the following 4 series:)
                             Oppenheimer Quest Opportunity Value Fund
                             Oppenheimer Quest Small Cap Value Fund
                             Oppenheimer Quest Growth & Income Value Fund
                             Oppenheimer Quest Officers Value Fund
                 Oppenheimer Quest Global Value Fund, Inc.

           4.    The "Rochester" Oppenheimer Funds.  The address for these funds
                 ----------------------------------
                 is 350 Linden Oaks, Rochester, NY  14625.

                 Bond Fund Series - Oppenheimer Bond Fund for Growth
                 Rochester Fund Municipals
                 Rochester Portfolio Series - Limited Term New York Municipal 
                   Fund

     (b)   The information contained in the registration on Form BD of
OppenheimerFunds Distributor, Inc., filed under the Securities Exchange Act of
1934, is incorporated herein by reference.

Item 30: Location of Accounts and Records
- -----------------------------------------

     Each account, book or other document required to be maintained by
Registrant pursuant to Section 31 (a) of the Investment Company Act of 1940 and
Rules 31a-1 to 31a-3 thereunder are maintained as follows:

     (Articles of Incorporation and Bylaws)
     MassMutual Institutional Funds
     1295 State Street
     Springfield, Massachusetts  01111

     (With respect to its services as Advisor)
     Massachusetts Mutual Life Insurance Company
     1295 State Street
     Springfield, Massachusetts  01111

                                      C-28
<PAGE>
 
     (With respect to its services as Sub-Advisor)
     David L. Babson and Company, Inc.
     One Memorial Drive
     Cambridge, Massachusetts

     (With respect to its services as Sub-Advisor)
     HarbourView Asset Management Corporation
     Two World Trade Center
     New York, New York

     (With respect to its services as Distributor)
     OppenheimerFunds Distributor, Inc.
     Two World Trade Center
     New York, New York

     (With respect to its services as Sub-Administrator, Transfer Agent and 
     Custodian)
     Investors Bank & Trust Company
     200 Clarendon Street
     Boston, Massachusetts

     (With respect to their services as counsel)
     Ropes & Gray
     One International Place
     Boston, Massachusetts

Item 31: Management Services
- ----------------------------

     Not Applicable.

Item 32: Undertakings
- ---------------------

     (a)   The Registrant hereby undertakes to call a meeting of shareholders
for the purposes of voting upon the question of removal of a trustee or
trustees, and to assist in communications with other shareholders as required by
Section 16(c) of the Securities Act of 1933, as amended, but only where it is
requested to do so by the holders of at least 10% of the Registrant's
outstanding voting securities.

     (b)   The Registrant undertakes to furnish each person to whom a prospectus
is delivered with a copy of the Registrant's latest annual report to
shareholders, upon request and without charge.

                                      C-29
<PAGE>
 
     
         Pursuant to the requirements of the Securities Act of 1933, as amended,
and the Investment Company Act of 1940, as amended, the Registrant has duly
caused this post-effective amendment to the Registration Statement to be signed
on its behalf by the undersigned, thereto duly authorized, in the City of
Springfield and the Commonwealth of Massachusetts on the 25th day of November,
1997. The Registrant certifies that this Post-Effective Amendment meets all the
requirements for effectiveness pursuant to Rule 485(b) under the Securities Act
of 1933.     

                        MASSMUTUAL INSTITUTIONAL FUNDS


                                           
                                       By: /s/ Hamline C. Wilson
                                           ---------------------
                                           Hamline C. Wilson
                                           Vice President & Chief Accounting
                                           and Financial Officer     

    
         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed by the following persons in the
capacities indicated on the 25th day of November, 1997.     

         Signature                                  Title
         ---------                                  -----

         /s/ Gary E. Wendlandt                      Chairman, Trustee &
         ---------------------                      Chief Executive Officer
         Gary E. Wendlandt                          

         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Ronald J. Abdow

         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Richard H. Ayers

         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Mary E. Boland

         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         David E. A. Carson
<PAGE>
 
         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Richard G. Dooley


         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Richard W. Greene


         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Bevely C. L. Hamilton


         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         F. William Marhsall, Jr.


         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         Charles J. McCarthy


         /s/ John V. Murphy                         Trustee
         ------------------
         John V. Murphy


         /s/ Stephen L. Kuhn *                      Trustee
         -------------------
         John H. Southworth


         /s/ Hamline C. Wilson                      Vice President &
         ---------------------                      Chief Accounting and  
         Hamline C. Wilson                          Financial Officer 
                                                    


         /s/ Stephen L. Kuhn
         ------------------- 
         * Stephen L. Kuhn, as Attorney-in-fact pursuant to Powers of Attorney
granted on or about August 5, 1994, April 18, 1996 and April 21, 1997.
<PAGE>
 
                                INDEX TO EXHIBITS
                                -----------------


Exhibit No.          Title of Exhibit
- -----------          ----------------
    
     6(a)            Form of Amended and Restated General Distributor's
                     Agreement between the Registrant and Oppenheimer Funds
                     Distributor, Inc.     

     8(b)            Copy of Administrative and Shareholder Services
                     Agreement between the Trust and MassMutual for the
                     provision of administrative and shareholder services.

     11(b)           Consent of Coopers & Lybrand L.L.P.
    
     15(a)           Form of Class A Rule 12b-1 Plans.
       (b)           Form of Class Y Rule 12b-1 Plans.      

     18              Form Rule 18f-3 Plan.

     27              Financial Data Schedules

<PAGE>
 
                                                                     Exhibit 6.A

                                    FORM OF

                              AMENDED AND RESTATED
                                        
                        GENERAL DISTRIBUTOR'S AGREEMENT

                                    BETWEEN
                                        
                         MASSMUTUAL INSTITUTIONAL FUNDS

                                      AND
                                        
                       OPPENHEIMERFUNDS DISTRIBUTOR, INC.

Date: December 1, 1997

OPPENHEIMERFUNDS DISTRIBUTOR, INC.
Two World Trade Center, Suite 3400
New York, NY 10048-0203

Dear Sirs:
    
MASSMUTUAL INSTITUTIONAL FUNDS, a Massachusetts business trust (the "Trust"), is
registered as an investment company under the Investment Company Act of 1940
(the "1940 Act"), and an indefinite number of one or more classes of shares of
beneficial interest of the following series of the Trust: (1) MassMutual Prime
Fund; (2) MassMutual Short-Term Bond Fund; (3) MassMutual Core Bond Fund; (4)
MassMutual Balanced Fund; (5) MassMutual Value Equity Fund; (6) MassMutual Small
Cap Value Equity Fund; and (7) MassMutual International Equity Fund, have been
registered under the Securities Act of 1933, as amended (the "1933 Act") to be
offered for sale to the public in a continuous public offering in accordance
with the terms and conditions set forth in each series' Prospectus and Statement
of Additional Information ("SAI") included in the Trust's Registration Statement
as it may be amended from time to time (the "current Prospectus and/or SAI"). As
used herein, the term "Fund" refers to each of the series of the Trust described
above and any additional series of the Trust that have Shares which become
registered under the 1933 Act to be offered for sale to the public in a
continuous public offering in accordance with the terms and conditions set forth
in such series' current Prospectus and/or SAI.      

In this connection, the Trust desires that your firm (the "General Distributor")
act in a principal capacity as General Distributor for the sale and distribution
of Class A  and Class Y Shares which have been registered as described above and
of any additional Shares of any Fund which may become registered during the term
of this Agreement and as to which you agree to act as to the General Distributor
("Shares").  You have advised the Trust that you are willing to act as General
Distributor on such terms, and it is accordingly agreed by and between us as
follows:

1. Appointment of the Distributor. The Trust hereby appoints you as the sole
   -------------------------------                                          
General Distributor, pursuant to the aforesaid continuous public offering of its
Shares, and the Trust further agrees from and after the date of this Agreement,
that it will not, without your consent, sell or agree to sell any Shares
otherwise than through you, except (a) the Trust may itself sell Shares without
sales charge as an investment to the officers, trustees or directors and bona
fide present and former full-time employees of the Trust, the Trust's Investment
Adviser and affiliates thereof, the Separate Investment Accounts of the Adviser,
and to investors who are identified in the current Prospectus and/or SAI as
having the privilege to buy Shares at net asset value; (b) the Trust may issue
Shares in connection with a merger, consolidation or acquisition of

                                       1
<PAGE>
 
assets on such basis as may be authorized or permitted under the 1940 Act; (c)
the Trust may issue Shares for the reinvestment of dividends and other
distributions of the Trust or of any other Fund if permitted by the current
Prospectus and/or SAI; and (d) the Trust may issue Shares as underlying
securities of a unit investment trust or other registered open-end investment
company (or series thereof) if such unit investment trust or registered open-end
investment company (or series thereof) has elected to use Shares as an
underlying investment.

2. Sale of Shares. You hereby accept such appointment and agree to sell Shares,
   ---------------                                                             
provided, however, that when requested by the Trust at any time because of
market or other economic considerations or abnormal circumstances of any kind,
or when agreed to by mutual consent of the Trust and the General Distributor,
you will suspend such efforts.  The Trust may also withdraw the offering of
Shares at any time when required by the provisions of any statute, order, rule
or regulation of any governmental body having jurisdiction.  It is understood
that you do not undertake to sell all or any specific number of Shares.

3. Sales Charge. Shares shall be sold by you at net asset value plus, if
   -------------                                                        
applicable, a front-end sales charge not in excess of 8.5% of the offering
price, but which front-end sales charge, if any, shall be proportionately
reduced or eliminated for larger sales and under other circumstances, in each
case on the basis set forth in the current Prospectus and/or SAI.  The
redemption proceeds of Shares offered and sold at net asset value with or
without a front-end sales charge may be subject to a contingent deferred sales
charge ("CDSC") under the circumstances described in the current Prospectus
and/or SAI.  You may reallow such portion of the front-end sales charge to
dealers or cause payment (which may exceed the front-end sales charge, if any)
of commissions to brokers through which sales are made, as you may determine,
and you may pay such amounts to dealers and brokers on sales of Shares from your
own resources (such dealers and brokers shall collectively include all domestic
or foreign institutions eligible to offer and sell the Shares), and in the event
a Fund has more than one class of Shares outstanding, then you may impose a
front-end sales charge and/or a CDSC on Shares of one class that is different
from the charges imposed on Shares of a Fund's other class(es), in each case as
set forth in the current Prospectus and/or SAI, provided the front-end sales
charge and CDSC to the ultimate purchaser do not exceed the respective levels
set forth for such category of purchaser in the current Prospectus and/or SAI.

4. Purchase of Shares.
   -------------------

     (a) As General Distributor, you shall have the right to accept or reject
     orders for the purchase of Shares at your discretion.  Any consideration
     which you may receive in connection with a rejected purchase order will be
     returned promptly.

     (b) You agree promptly to issue or to cause an agent appointed by you or
     the duly appointed transfer or shareholder servicing agent of the Trust to
     issue as your agent confirmations of all accepted purchase orders and to
     transmit a copy of such confirmations to the Trust.  The net asset value of
     all Shares which are the subject of such confirmations, computed in
     accordance with the applicable rules under the 1940 Act, shall be a
     liability of the General Distributor to the Trust to be paid promptly after
     receipt of payment from the originating dealer or broker (or investor, in
     the case of direct purchases) and not later than eleven business days after
     such confirmation even if you have not actually received payment from the
     originating dealer or broker, or investor.  In no event shall the General
     Distributor make payment to the Trust later than permitted by applicable
     rules of the National Association of Securities Dealers, Inc.

     (c) If the originating dealer or broker shall fail to make timely
     settlement of its purchase order in accordance with applicable rules of the
     National Association of Securities Dealers,

                                       2
<PAGE>
 
     Inc., or if a direct purchaser shall fail to make good payment for Shares
     in a timely manner, you shall have the right to cancel such purchase order
     and, at your account and risk, to hold responsible the originating dealer
     or broker, or investor.  You agree promptly to reimburse a Fund for losses
     suffered by it that are attributable to any such cancellation, or to errors
     on your part in relation to the effective date of accepted purchase orders,
     limited to the amount that such losses exceed contemporaneous gains
     realized by a Fund for either of such reasons with respect to other
     purchase orders.

     (d) In the case of a canceled purchase for the account of a directly
     purchasing shareholder, the Trust agrees that if such investor fails to
     make you whole for any loss you pay to a Fund on such canceled purchase
     order, a Fund will reimburse you for such loss to the extent of the
     aggregate redemption proceeds of any other Shares of a Fund owned by such
     investor, on your demand that a Fund exercise its right to claim such
     redemption proceeds.

     The Trust shall register or cause to be registered all Shares sold to you
     pursuant to the provisions hereof in such names and amounts as you may
     request from time to time. All Shares, when so issued and paid for, shall
     be fully paid and non-assessable by the Trust (which shall not prevent the
     imposition of any CDSC that may apply) to the extent set forth in the
     current Prospectus and/or SAI.

5. 1933 Act Registration. The Trust has delivered to you a copy of the current
   ----------------------                                                     
Prospectus and SAI. The Trust agrees that it will use its best efforts to
continue the effectiveness of the Registration Statement under the 1933 Act.
The Trust further agrees, at its expense, to prepare and file any amendments to
its Registration Statement as may be necessary and any supplemental data in
order to comply with the 1933 Act.  The Trust will promptly furnish you at your
expense with a reasonable number of copies of the Prospectus and SAI and any
amendments thereto for use in connection with the sale of Shares.

6. 1940 Act Registration. The Trust has registered under the 1940 Act as an
   ----------------------                                                  
investment company, and it will use its best efforts to maintain such
registration and to comply with the requirements of the 1940 Act.

7. State Blue Sky Notification. At your request, the Trust will, at its expense,
   ----------------------------                                                 
take such steps as may be necessary and feasible to determine what action is
necessary to file notices necessary for the sale of Shares and where required,
to file notices for the sale of Shares in states, territories or dependencies of
the United States, the District of Columbia, the Commonwealth of Puerto Rico and
to qualify Shares in foreign countries, in accordance with the laws thereof, and
to renew or extend any such notification or qualification; provided, however,
that the Trust shall not be required to qualify Shares or to maintain the
qualification of Shares in any jurisdiction where it shall deem such
qualification disadvantageous to the Trust. The Trust shall keep you informed of
the State Blue Sky Notifications of the Shares.

8. Duties of Distributor. You agree that:
   ----------------------                

     (a) Neither you nor any of your officers will take any long or short
     position in the Shares;

     (b) You shall, upon reasonable request of the Trust, furnish to the Trust
     any pertinent information required to be inserted with respect to you as
     General Distributor within the purview of the 1933 Act in any reports or
     registrations required to be filed with any governmental authority;

     (c) You will not make any representations inconsistent with the information
     contained in the current Prospectus and/or SAI;

                                       3
<PAGE>
 
     (d) You or your agent shall maintain such records relating to your acting
     as General Distributor of the Trust as may be reasonably required for the
     Trust or its transfer or shareholder servicing agent to respond to
     shareholder requests or complaints, and to permit the Trust to maintain
     proper accounting records, and you shall make such records reasonably
     available to the Trust and its transfer agent or shareholder servicing
     agent upon request; and

     (e) In performing your obligations under this Agreement, you shall comply
     with all requirements of a Fund's current Prospectus and/or SAI and all
     applicable laws, rules and regulations with respect to the purchase, sale
     and distribution of Shares.

9. Duties of the Trust. The Trust agrees that:
   --------------------                       

     (a) It shall promptly furnish to you, at least 10 days prior to use, any
     description of you or the services you perform hereunder which the Trust
     intends to use in the Prospectus, SAI, in sales literature reports,
     advertisements or otherwise. Such description may not be utilized if you
     object thereto in writing;

     (b) It shall promptly furnish to you for your approval and filing with the
     National Association of Securities Dealers, Inc. any proposed sales
     literature or advertisement relating to, or referring to the Trust or the
     Shares;

     (c) It shall promptly advise you of any information concerning the Trust or
     the Shares, which may affect your ability to properly discharge your
     obligations hereunder; and

     (d) It shall not use the word "Oppenheimer" other than merely identifying
     the General Distributor as such unless such use is specifically approved by
     you.
    
10. Allocation of Costs. The Trust shall pay, or cause others to pay, the cost
    --------------------                                                      
of composition and printing of sufficient copies of a Fund's Prospectus and SAI
as shall be required for periodic distribution to a Fund's shareholders and the
expense of registering Shares for sale under federal securities laws and filing
notices in states to sell Shares in such states. You shall pay the expenses
normally attributable to the sale of Shares, other than as paid under a Fund's
Plan under Rule 12b-1 of the 1940 Act, including the cost of printing and
mailing of the Prospectus (other than those furnished to existing shareholders)
and any sales literature or advertisements used by you in the public sale of the
Shares.     

11. Duration. This Agreement shall take effect on the date first written above,
    ---------                                                                  
and shall supersede any and all prior General Distributor's Agreements by and
among the Trust and you.  Unless earlier terminated pursuant to Section 12
hereof, this Agreement shall remain in effect until December 1, 1998. This
Agreement shall continue in effect from year to year thereafter, provided that
such continuance shall be specifically approved at least annually: (a) by the
Trust's Board of Trustees or by vote of a majority of the voting securities of
the Trust; and (b) by the vote of a majority of the Trustees, who are not
parties to this Agreement or "interested persons" (as defined in the 1940 Act)
of any such person, cast in person at a meeting called for the purpose of voting
on such approval.

12. Termination. This Agreement may be terminated (a) by the General Distributor
    ------------                                                                
at any time without penalty by giving no less than sixty days' written notice
(which notice may be waived by the Trust); (b) by the Trust at any time without
penalty upon sixty days' written notice to the General Distributor (which notice
may be waived by the General Distributor); or (c) by mutual consent of the Trust
and the General

                                       4
<PAGE>
 
Distributor, provided that such termination by the Trust shall be directed or
approved by the Board of Trustees of the Trust or by the vote of the holders of
a majority of the outstanding voting securities of the Trust.  In the event this
Agreement is terminated, the General Distributor shall be entitled to be paid
the CDSC, if any, under paragraph 3 hereof on the redemption proceeds of Shares
sold prior to the effective date of such termination.

13. Assignment. This Agreement may not be amended or changed except in writing
    -----------                                                               
and shall be binding upon and shall inure to the benefit of the parties hereto
and their respective successors; however, this Agreement shall not be assigned
by either party and shall automatically terminate upon assignment.

14. Disclaimer of Shareholder Liability. The General Distributor understands and
    ------------------------------------                                        
agrees that the obligations of the Trust under this Agreement are not binding
upon any Trustee or shareholder of the Trust personally, but bind only the Trust
and the Trust's property; the General Distributor represents that it has notice
of the provisions of the Agreement and Declaration of Trust dated May 29, 1993,
as amended, disclaiming shareholder liability for acts or obligations of the
Trust.

15. Section Headings. The headings of each section is for descriptive purposes
    -----------------                                                         
only, and such headings are not to be construed or interpreted as part of this
Agreement.

If the foregoing is in accordance with your understanding, so indicate by
signing in the space provided below.



                                    MASSMUTUAL INSTITUTIONAL FUNDS



                                    By:
                                       ---------------------------
 

Accepted:

OPPENHEIMERFUNDS DISTRIBUTOR, INC.



By: 
   -------------------------------

                                       5

<PAGE>
 
                                                                    Exhibit 8(b)


               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



                       (As to the MassMutual Prime Fund)
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
              ------------------------------------------------- 


          This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the
"Agreement"), dated as of this 30th day of September, 1994 (the "Effective 
Date") is by and between MassMutual Institutional Funds (the "Trust") on behalf
of MassMutual Prime Fund (the "Fund") and Massachusetts Mutual Life Insurance
Company (the "Manager").

          WHEREAS, The Fund is a series of the Trust, a Massachusetts business
trust which is an open-end diversified management investment company registered
as such with the Securities and Exchange Commission (the "Commission") pursuant
to the Investment Company Act of 1940, as amended (the "1940 Act"), and

          WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to
enter into this Agreement whereby the Manager will provide, or cause to be
provided, administrative and shareholder services for the Fund and assume
certain expenses of the Fund.

          NOW, THEREFORE, in consideration of the covenants and mutual promises
of the parties made to each other, it is hereby covenanted and agreed as
follows:

              ARTICLE I: ADMINISTRATIVE AND SHAREHOLDER SERVICES
              -------------------------------------------------- 
     

A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

     1. Maintain office facilities (which may be in the offices of the Manager
     or a corporate affiliate but shall be in such location as the Trust
     reasonably determines).

     2. Furnish statistical and research data, clerical services and stationery
     and office supplies.

     3. Compile data for, prepare for execution by the Fund and file all the
     Fund's federal and state tax returns and required tax filings other than
     those required by this Agreement to be made by the Fund's custodian and
     transfer agent.

     4. Prepare compliance filings pursuant to state securities laws with the
     advice of the Trust's counsel.

     5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
     amendments to its Registration Statements (on Form N-1A or any replacement
     therefor).
<PAGE>
 
     6. Compile data for, prepare and file timely Notices to the SEC required
     pursuant to Rule 24f-2 under the 1940 Act.

     7. Determine the daily pricing of the portfolio securities and computation
     of the net asset value and the net income of Fund in accordance with the
     Prospectus, resolutions of the Trust's Board of Trustees, and the
     procedures set forth in EXHIBIT A: NET ASSET VALUE CALCULATIONS.

     8. Keep and maintain the financial accounts and records of the Fund and
     provide the Trust with certain reports, as needed or requested by the Fund.

     9. Provide officers for the Trust as requested by the Trust's Board of
     Trustees.

     10. Perform fund accounting services for the Fund as set forth in EXHIBIT 
     B: FUND ACCOUNTING FUNCTIONS.

     11.  Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

     1. Those performed by the custodian for the Trust under the Custodian
     Agreement between the Trust and Investors Bank & Trust Company or any
     successor custodian (the "Bank");

     2. Those performed by the distributor(s) of the Trust's shares;

     3. Those provided by the Trust's independent legal counsel;

     4. Those performed by the independent public accountants for the Trust;

     5. Those performed by the Fund's investment manager;

     6. Those provided by the Trust's independent trustees, and

     7. Those provided by Investors Bank & Trust Company pursuant to a Transfer
     Agency Agreement.

D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.

                                       2
<PAGE>
 
                             ARTICLE II:  EXPENSES
                             ---------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

     1. Taxes and corporate fees payable to governmental agencies;

     2. Brokerage commissions (which may be higher than other brokers would
     charge if paid to a broker which provides brokerage and research services
     to the Manager for use in providing investment advice and management to the
     Fund and other accounts over which the Manager exercises investment
     discretion) and other capital items payable in connection with the purchase
     or sale of the Fund's investments (The words "brokerage and research
     services" shall have the meaning given in the Securities Exchange Act of
     1934 and the Rules and Regulations thereunder.);

     3. Interest on account of any borrowing by the Fund;

     4. Fees and expenses of the Trust's Trustees who are not interested persons
     (as defined in the 1940 Act) of the Manager or of the Trust;

     5. Fees payable to the Trust's certified independent public accountants;

     6. Fees paid to the Trust's independent legal counsel;

     7. Fees paid to the Fund's custodian;

     8. Fees paid to the Fund's Investment Manager, and

     9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
     applicable to the Fund.

                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the Manager as the Trust and the Manager may from time to time agree.

                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care.  The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and 

                                       3
<PAGE>
 
agents, successors and assigns will be protected and will not be liable, and
will be indemnified and held harmless by the Trust for any error of judgement,
mistake of law, or any other loss, claim, damages, liabilities, or expenses
arising by reason of it acting hereunder, by the Trust except in the case of the
negligence, willful misconduct, bad faith, reckless disregard of duties or
obligations hereunder, including knowing violations of law, or fraud of the
Manager, or of its officers, employees, or agents, except as otherwise set forth
in this Article IV. Notwithstanding anything herein to the contrary, the Manager
shall have no discretion over the Trust's assets or choice of investments and
shall not be held liable hereunder for any losses suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.   Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God.  In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.

             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
            ----------------------------------------------------- 


A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless 

                                       4
<PAGE>
 
 
sooner terminated as provided herein, will continue for an initial term of one-
year from the Effective Date and thereafter shall continue for successive one
year periods; provided however, that such continuance shall be specifically
approved at least annually by (i) the Board of Trustees of the Trust, or (ii) by
vote of a majority of the outstanding shares of the Fund (as defined in the 1940
Act), provided however, that in either event the continuance is also approved at
least annually by a majority of the Trust's Trustees who are not parties to this
Agreement or interested persons (as defined in the 1940 Act)(other than a
Trustees of the Trust) of the Manager or of the Trust by vote cast in person at
a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.

C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.

                                       5
<PAGE>
 
D.  Records and Confidentiality.  All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust.  In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights.  All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities.  The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

     (a)  In the case of notices sent to the Trust to:

          MassMutual Institutional Trusts
          1295 State Street
          Springfield, Massachusetts 01111
          Attention:  Stephen L. Kuhn
                  Vice President & Secretary

     (b)  In the case of notices sent to the Manager to:

          Massachusetts Mutual Life Insurance Company
          1295 State Street
          Springfield, Massachusetts 01111
          Attention:  Edmond F. Ryan
                  Vice President

                                       6
<PAGE>
 
In the case of notices sent to either party, a copy to the Bank to:

          Investors Bank & Trust Company
          P.O. Box 1537
          Boston, Massachusetts 02205-1537
          Attention: Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.

K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.

                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Administrative and

Shareholder Services Agreement to be executed on the day and year first above
written.


                    MASSMUTUAL INSTITUTIONAL FUNDS
                    on behalf of MassMutual Prime Fund


                    By: /s/ Stuart H. Reese
                        -----------------------------
                        Stuart H. Reese
                        President


                    MASSACHUSETTS MUTUAL LIFE
                    INSURANCE COMPANY


                    By: /s/ Edwin P. McCausland, Jr.
                        -----------------------------
                        Edwin P. McCausland, Jr.
                        Vice President and
                        Managing Director

                                       8
<PAGE>
 
                   EXHIBIT A:  NET ASSET VALUE CALCULATIONS
                   ----------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.

                                       9
<PAGE>
 
                     EXHIBIT B:  FUND ACCOUNTING FUNCTIONS
                     -------------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

     (a)  Journals containing an itemized daily record in detail of all
     purchases and sales of securities, all receipts and disbursements of cash
     and all other debits and credits, as required;
 
     (b)  General and auxiliary ledgers reflecting all asset, liability,
     reserve, capital, income and expense accounts as required;
 
     (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.

                                      10
<PAGE>
 
   12. Preparing Blue Sky filings.

   13. Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14. Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15. Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16. Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.

                                      11
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



                  (As to the MassMutual Short-Term Bond Fund)
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
               -------------------------------------------------


          This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the
"Agreement"), dated as of this 30th day of September, 1994 (the "Effective
Date") is by and between MassMutual Institutional Funds (the "Trust") on behalf
of MassMutual Short-Term Bond Fund (the "Fund") and Massachusetts Mutual Life
Insurance Company (the "Manager").

          WHEREAS, The Fund is a series of the Trust, a Massachusetts business
trust which is an open-end diversified management investment company registered
as such with the Securities and Exchange Commission (the "Commission") pursuant
to the Investment Company Act of 1940, as amended (the "1940 Act"), and

          WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to
enter into this Agreement whereby the Manager will provide, or cause to be
provided, administrative and shareholder services for the Fund and assume
certain expenses of the Fund.

          NOW, THEREFORE, in consideration of the covenants and mutual promises
of the parties made to each other, it is hereby covenanted and agreed as
follows:

              ARTICLE I:  ADMINISTRATIVE AND SHAREHOLDER SERVICES
              ---------------------------------------------------
     
A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

     1. Maintain office facilities (which may be in the offices of the Manager
     or a corporate affiliate but shall be in such location as the Trust
     reasonably determines).

     2. Furnish statistical and research data, clerical services and stationery
     and office supplies.

     3. Compile data for, prepare for execution by the Fund and file all the
     Fund's federal and state tax returns and required tax filings other than
     those required by this Agreement to be made by the Fund's custodian and
     transfer agent.

     4. Prepare compliance filings pursuant to state securities laws with the
     advice of the Trust's counsel.
<PAGE>
 
     5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
     amendments to its Registration Statements (on Form N-1A or any replacement
     therefor).

     6. Compile data for, prepare and file timely Notices to the SEC required
     pursuant to Rule 24f-2 under the 1940 Act.

     7. Determine the daily pricing of the portfolio securities and computation
     of the net asset value and the net income of Fund in accordance with the
     Prospectus, resolutions of the Trust's Board of Trustees, and the
     procedures set forth in EXHIBIT A: NET ASSET VALUE CALCULATIONS.

     8. Keep and maintain the financial accounts and records of the Fund and
     provide the Trust with certain reports, as needed or requested by the Fund.

     9. Provide officers for the Trust as requested by the Trust's Board of
     Trustees.

     10. Perform fund accounting services for the Fund as set forth in EXHIBIT
     B: FUND ACCOUNTING FUNCTIONS.

     11. Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

     1. Those performed by the custodian for the Trust under the Custodian
     Agreement between the Trust and Investors Bank & Trust Company or any
     successor custodian (the "Bank");

     2. Those performed by the distributor(s) of the Trust's shares;

     3. Those provided by the Trust's independent legal counsel;

     4. Those performed by the independent public accountants for the Trust;

     5. Those performed by the Fund's investment manager;

     6. Those provided by the Trust's independent trustees, and

     7. Those provided by Investors Bank & Trust Company pursuant to a Transfer
     Agency Agreement.


                                       2
<PAGE>
 
D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.

                             ARTICLE II:  EXPENSES
                             ---------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

     1. Taxes and corporate fees payable to governmental agencies;

     2. Brokerage commissions (which may be higher than other brokers would
     charge if paid to a broker which provides brokerage and research services
     to the Manager for use in providing investment advice and management to the
     Fund and other accounts over which the Manager exercises investment
     discretion) and other capital items payable in connection with the purchase
     or sale of the Fund's investments (The words "brokerage and research
     services" shall have the meaning given in the Securities Exchange Act of
     1934 and the Rules and Regulations thereunder.);

     3. Interest on account of any borrowing by the Fund;

     4. Fees and expenses of the Trust's Trustees who are not interested persons
     (as defined in the 1940 Act) of the Manager or of the Trust;

     5. Fees payable to the Trust's certified independent public accountants;

     6. Fees paid to the Trust's independent legal counsel;

     7. Fees paid to the Fund's custodian;

     8. Fees paid to the Fund's Investment Manager, and

     9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
     applicable to the Fund.

                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the  Manager as the Trust and the Manager may from time to time
agree.



                                       3
<PAGE>
 
                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care.  The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and agents, successors and assigns will be protected and
will not be liable, and will be indemnified and held harmless by the Trust for
any error of judgement, mistake of law, or any other loss, claim, damages,
liabilities, or expenses arising by reason of it acting hereunder, by the Trust
except in the case of the negligence, willful misconduct, bad faith, reckless
disregard of duties or obligations hereunder, including knowing violations of
law, or fraud of the Manager, or of its officers, employees, or agents, except
as otherwise set forth in this Article IV.  Notwithstanding anything herein to
the contrary, the Manager shall have no discretion over the Trust's assets or
choice of investments and shall not be held liable hereunder for any losses
suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.   Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God. In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.



                                       4
<PAGE>
 
             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
             -----------------------------------------------------

A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless sooner terminated as provided herein, will continue for an initial
term of one-year from the Effective Date and thereafter shall continue for
successive one year periods; provided however, that such continuance shall be
specifically approved at least annually by (i) the Board of Trustees of the
Trust, or (ii) by vote of a majority of the outstanding shares of the Fund (as
defined in the 1940 Act), provided however, that in either event the continuance
is also approved at least annually by a majority of the Trust's Trustees who are
not parties to this Agreement or interested persons (as defined in the 1940
Act)(other than a Trustees of the Trust) of the Manager or of the Trust by vote
cast in person at a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.


                                       5
<PAGE>
 
C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.

D.  Records and Confidentiality.  All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust.  In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights.  All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities.  The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

     (a)  In the case of notices sent to the Trust to:

             MassMutual Institutional Trusts
             1295 State Street
             Springfield, Massachusetts 01111
             Attention:  Stephen L. Kuhn
                         Vice President & Secretary



                                       6
<PAGE>
 
     (b)  In the case of notices sent to the Manager to:

             Massachusetts Mutual Life Insurance Company
             1295 State Street
             Springfield, Massachusetts 01111
             Attention:  Edmond F. Ryan
                         Vice President

In the case of notices sent to either party, a copy to the Bank to:

             Investors Bank & Trust Company
             P.O. Box 1537
             Boston, Massachusetts 02205-1537
             Attention:  Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.



                                       7
<PAGE>
 
K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.



     IN WITNESS WHEREOF, the parties hereto have caused this Administrative and
Shareholder Services Agreement to be executed on the day and year first above
written.


                                MASSMUTUAL INSTITUTIONAL FUNDS
                                on behalf of MassMutual Short-Term Bond Fund


                                By: /s/ Stuart H. Reese
                                   -----------------------------------
                                   Stuart H. Reese
                                   President



                                MASSACHUSETTS MUTUAL LIFE
                                INSURANCE COMPANY


                                By: /s/ Edwin P. McCausland, Jr.
                                   -----------------------------------
                                   Edwin P. McCausland, Jr.
                                   Vice President and
                                   Managing Director




                                       8
<PAGE>
 
                   EXHIBIT A:  NET ASSET VALUE CALCULATIONS
                   ----------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.




                                       9
<PAGE>
 
                     EXHIBIT B:  FUND ACCOUNTING FUNCTIONS
                     -------------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

      (a)  Journals containing an itemized daily record in detail of all
      purchases and sales of securities, all receipts and disbursements of cash
      and all other debits and credits, as required;
 
      (b)  General and auxiliary ledgers reflecting all asset, liability,
      reserve, capital, income and expense accounts as required;
 
      (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.



                                      10
<PAGE>
 
   12. Preparing Blue Sky filings.

   13. Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14. Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15. Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16. Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.



                                      11
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



                     (As to the MassMutual Core Bond Fund)
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
               ------------------------------------------------- 


          This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the
"Agreement"), dated as of this 30th day of September, 1994 (the "Effective
Date") is by and between MassMutual Institutional Funds (the "Trust") on behalf
of MassMutual Core Bond Fund (the "Fund") and Massachusetts Mutual Life
Insurance Company (the "Manager").

          WHEREAS, The Fund is a series of the Trust, a Massachusetts business
trust which is an open-end diversified management investment company registered
as such with the Securities and Exchange Commission (the "Commission") pursuant
to the Investment Company Act of 1940, as amended (the "1940 Act"), and

          WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to
enter into this Agreement whereby the Manager will provide, or cause to be
provided, administrative and shareholder services for the Fund and assume
certain expenses of the Fund.

          NOW, THEREFORE, in consideration of the covenants and mutual promises
of the parties made to each other, it is hereby covenanted and agreed as
follows:

              ARTICLE I:  ADMINISTRATIVE AND SHAREHOLDER SERVICES
              -------------------------------------------------- 

A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

     1. Maintain office facilities (which may be in the offices of the Manager
     or a corporate affiliate but shall be in such location as the Trust
     reasonably determines).

     2. Furnish statistical and research data, clerical services and stationery
     and office supplies.

     3. Compile data for, prepare for execution by the Fund and file all the
     Fund's federal and state tax returns and required tax filings other than
     those required by this Agreement to be made by the Fund's custodian and
     transfer agent.

     4. Prepare compliance filings pursuant to state securities laws with the
     advice of the Trust's counsel.

     5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
     amendments to its Registration Statements (on Form N-1A or any replacement
     therefor).
<PAGE>
 
     6. Compile data for, prepare and file timely Notices to the SEC required
     pursuant to Rule 24f-2 under the 1940 Act.

     7. Determine the daily pricing of the portfolio securities and computation
     of the net asset value and the net income of Fund in accordance with the
     Prospectus, resolutions of the Trust's Board of Trustees, and the
     procedures set forth in EXHIBIT A: NET ASSET VALUE CALCULATIONS.

     8. Keep and maintain the financial accounts and records of the Fund and
     provide the Trust with certain reports, as needed or requested by the Fund.

     9. Provide officers for the Trust as requested by the Trust's Board of
     Trustees.

     10. Perform fund accounting services for the Fund as set forth in EXHIBIT
     B: FUND ACCOUNTING FUNCTIONS.

     11. Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

     1. Those performed by the custodian for the Trust under the Custodian
     Agreement between the Trust and Investors Bank & Trust Company or any
     successor custodian (the "Bank");

     2. Those performed by the distributor(s) of the Trust's shares;

     3. Those provided by the Trust's independent legal counsel;

     4. Those performed by the independent public accountants for the Trust;

     5. Those performed by the Fund's investment manager;

     6. Those provided by the Trust's independent trustees, and

     7. Those provided by Investors Bank & Trust Company pursuant to a Transfer
     Agency Agreement.

D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.

                                       2
<PAGE>
 
                             ARTICLE II:  EXPENSES
                             ---------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

     1. Taxes and corporate fees payable to governmental agencies;

     2. Brokerage commissions (which may be higher than other brokers would
     charge if paid to a broker which provides brokerage and research services
     to the Manager for use in providing investment advice and management to the
     Fund and other accounts over which the Manager exercises investment
     discretion) and other capital items payable in connection with the purchase
     or sale of the Fund's investments (The words "brokerage and research
     services" shall have the meaning given in the Securities Exchange Act of
     1934 and the Rules and Regulations thereunder.);

     3. Interest on account of any borrowing by the Fund;

     4. Fees and expenses of the Trust's Trustees who are not interested persons
     (as defined in the 1940 Act) of the Manager or of the Trust;

     5. Fees payable to the Trust's certified independent public accountants;

     6. Fees paid to the Trust's independent legal counsel;

     7. Fees paid to the Fund's custodian;

     8. Fees paid to the Fund's Investment Manager, and

     9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
     applicable to the Fund.

                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the Manager as the Trust and the Manager may from time to time
agree.

                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care.  The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and 

                                       3
<PAGE>
 
agents, successors and assigns will be protected and will not be liable, and
will be indemnified and held harmless by the Trust for any error of judgement,
mistake of law, or any other loss, claim, damages, liabilities, or expenses
arising by reason of it acting hereunder, by the Trust except in the case of the
negligence, willful misconduct, bad faith, reckless disregard of duties or
obligations hereunder, including knowing violations of law, or fraud of the
Manager, or of its officers, employees, or agents, except as otherwise set forth
in this Article IV. Notwithstanding anything herein to the contrary, the Manager
shall have no discretion over the Trust's assets or choice of investments and
shall not be held liable hereunder for any losses suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.  Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God.  In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.

             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
            ----------------------------------------------------- 

A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless 

                                       4
<PAGE>
 
sooner terminated as provided herein, will continue for an initial term of one-
year from the Effective Date and thereafter shall continue for successive one
year periods; provided however, that such continuance shall be specifically
approved at least annually by (i) the Board of Trustees of the Trust, or (ii) by
vote of a majority of the outstanding shares of the Fund (as defined in the 1940
Act), provided however, that in either event the continuance is also approved at
least annually by a majority of the Trust's Trustees who are not parties to this
Agreement or interested persons (as defined in the 1940 Act)(other than a
Trustees of the Trust) of the Manager or of the Trust by vote cast in person at
a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.

C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.

                                       5
<PAGE>
 
D.  Records and Confidentiality.  All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust.  In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights.  All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities.  The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

     (a) In the case of notices sent to the Trust to:

          MassMutual Institutional Trusts
          1295 State Street
          Springfield, Massachusetts 01111
          Attention:  Stephen L. Kuhn
                  Vice President & Secretary

     (b) In the case of notices sent to the Manager to:

          Massachusetts Mutual Life Insurance Company
          1295 State Street
          Springfield, Massachusetts 01111
          Attention:  Edmond F. Ryan
                  Vice President

                                       6
<PAGE>
 
In the case of notices sent to either party, a copy to the Bank to:

          Investors Bank & Trust Company
          P.O. Box 1537
          Boston, Massachusetts 02205-1537
          Attention: Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.

K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.

                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Administrative and

Shareholder Services Agreement to be executed on the day and year first above
written.


                    MASSMUTUAL INSTITUTIONAL FUNDS
                    on behalf of MassMutual Core Bond Fund


                    By: /s/ Stuart H. Reese 
                        ------------------------------
                        Stuart H. Reese
                        President



                    MASSACHUSETTS MUTUAL LIFE
                    INSURANCE COMPANY


                    By: /s/ Edwin P. McCausland, Jr.
                        ------------------------------
                        Edwin P. McCausland, Jr.
                        Vice President and
                        Managing Director

                                       8
<PAGE>
 
                   EXHIBIT A:  NET ASSET VALUE CALCULATIONS
                   ----------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.

                                       9
<PAGE>
 
                     EXHIBIT B:  FUND ACCOUNTING FUNCTIONS
                     -------------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

     (a)  Journals containing an itemized daily record in detail of all
     purchases and sales of securities, all receipts and disbursements of cash
     and all other debits and credits, as required;
 
     (b)  General and auxiliary ledgers reflecting all asset, liability,
     reserve, capital, income and expense accounts as required;
 
     (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.

                                      10
<PAGE>
 
   12. Preparing Blue Sky filings.

   13. Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14. Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15. Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16. Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.

                                      11
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



                     (As to the MassMutual Balanced Fund)
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
               -------------------------------------------------


          This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the
"Agreement"), dated as of this 30th day of September, 1994 (the "Effective
Date") is by and between MassMutual Institutional Funds (the "Trust") on behalf
of MassMutual Balanced Fund (the "Fund") and Massachusetts Mutual Life Insurance
Company (the "Manager").

          WHEREAS, The Fund is a series of the Trust, a Massachusetts business
trust which is an open-end diversified management investment company registered
as such with the Securities and Exchange Commission (the "Commission") pursuant
to the Investment Company Act of 1940, as amended (the "1940 Act"), and

          WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to
enter into this Agreement whereby the Manager will provide, or cause to be
provided, administrative and shareholder services for the Fund and assume
certain expenses of the Fund.

          NOW, THEREFORE, in consideration of the covenants and mutual promises
of the parties made to each other, it is hereby covenanted and agreed as
follows:

          ARTICLE I:  ADMINISTRATIVE AND SHAREHOLDER SERVICES
          ---------------------------------------------------
     
A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

     1. Maintain office facilities (which may be in the offices of the Manager
     or a corporate affiliate but shall be in such location as the Trust
     reasonably determines).

     2. Furnish statistical and research data, clerical services and stationery
     and office supplies.

     3. Compile data for, prepare for execution by the Fund and file all the
     Fund's federal and state tax returns and required tax filings other than
     those required by this Agreement to be made by the Fund's custodian and
     transfer agent.

     4. Prepare compliance filings pursuant to state securities laws with the
     advice of the Trust's counsel.

     5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
     amendments to its Registration Statements (on Form N-1A or any replacement
     therefor).
<PAGE>
 
     6. Compile data for, prepare and file timely Notices to the SEC required
     pursuant to Rule 24f-2 under the 1940 Act.

     7. Determine the daily pricing of the portfolio securities and computation
     of the net asset value and the net income of Fund in accordance with the
     Prospectus, resolutions of the Trust's Board of Trustees, and the
     procedures set forth in EXHIBIT A: NET ASSET VALUE CALCULATIONS.

     8. Keep and maintain the financial accounts and records of the Fund and
     provide the Trust with certain reports, as needed or requested by the Fund.

     9. Provide officers for the Trust as requested by the Trust's Board of
     Trustees.

     10. Perform fund accounting services for the Fund as set forth in EXHIBIT
     B: FUND ACCOUNTING FUNCTIONS.

     11. Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

     1. Those performed by the custodian for the Trust under the Custodian
     Agreement between the Trust and Investors Bank & Trust Company or any
     successor custodian (the "Bank");

     2. Those performed by the distributor(s) of the Trust's shares;

     3. Those provided by the Trust's independent legal counsel;

     4. Those performed by the independent public accountants for the Trust;

     5. Those performed by the Fund's investment manager;

     6. Those provided by the Trust's independent trustees, and

     7. Those provided by Investors Bank & Trust Company pursuant to a Transfer
     Agency Agreement.

D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.

                                       2
<PAGE>
 
                             ARTICLE II: EXPENSES
                             --------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

     1. Taxes and corporate fees payable to governmental agencies;

     2. Brokerage commissions (which may be higher than other brokers would
     charge if paid to a broker which provides brokerage and research services
     to the Manager for use in providing investment advice and management to the
     Fund and other accounts over which the Manager exercises investment
     discretion) and other capital items payable in connection with the purchase
     or sale of the Fund's investments (The words "brokerage and research
     services" shall have the meaning given in the Securities Exchange Act of
     1934 and the Rules and Regulations thereunder.);

     3. Interest on account of any borrowing by the Fund;

     4. Fees and expenses of the Trust's Trustees who are not interested persons
     (as defined in the 1940 Act) of the Manager or of the Trust;

     5. Fees payable to the Trust's certified independent public accountants;

     6. Fees paid to the Trust's independent legal counsel;

     7. Fees paid to the Fund's custodian;

     8. Fees paid to the Fund's Investment Manager, and

     9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
     applicable to the Fund.

                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the Manager as the Trust and the Manager may from time to time agree.

                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care.  The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and 

                                       3
<PAGE>
 
agents, successors and assigns will be protected and will not be liable, and
will be indemnified and held harmless by the Trust for any error of judgement,
mistake of law, or any other loss, claim, damages, liabilities, or expenses
arising by reason of it acting hereunder, by the Trust except in the case of the
negligence, willful misconduct, bad faith, reckless disregard of duties or
obligations hereunder, including knowing violations of law, or fraud of the
Manager, or of its officers, employees, or agents, except as otherwise set forth
in this Article IV. Notwithstanding anything herein to the contrary, the Manager
shall have no discretion over the Trust's assets or choice of investments and
shall not be held liable hereunder for any losses suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.  Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God.  In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.

             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
             -----------------------------------------------------

A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless 

                                       4
<PAGE>
 
sooner terminated as provided herein, will continue for an initial term of one-
year from the Effective Date and thereafter shall continue for successive one
year periods; provided however, that such continuance shall be specifically
approved at least annually by (i) the Board of Trustees of the Trust, or (ii) by
vote of a majority of the outstanding shares of the Fund (as defined in the 1940
Act), provided however, that in either event the continuance is also approved at
least annually by a majority of the Trust's Trustees who are not parties to this
Agreement or interested persons (as defined in the 1940 Act)(other than a
Trustees of the Trust) of the Manager or of the Trust by vote cast in person at
a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.

C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.

                                       5
<PAGE>
 
D.  Records and Confidentiality.  All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust.  In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights.  All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities.  The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

     (a) In the case of notices sent to the Trust to:

             MassMutual Institutional Trusts
             1295 State Street
             Springfield, Massachusetts 01111
             Attention: Stephen L. Kuhn
                     Vice President & Secretary

     (b) In the case of notices sent to the Manager to:

             Massachusetts Mutual Life Insurance Company
             1295 State Street
             Springfield, Massachusetts 01111
             Attention: Edmond F. Ryan
                     Vice President

                                       6
<PAGE>
 
In the case of notices sent to either party, a copy to the Bank to:

          Investors Bank & Trust Company
          P.O. Box 1537
          Boston, Massachusetts 02205-1537
          Attention: Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.

K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.

                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Administrative and

Shareholder Services Agreement to be executed on the day and year first above
written.


                          MASSMUTUAL INSTITUTIONAL FUNDS
                          on behalf of MassMutual Balanced Fund
                  
                  
                          By: /s/ Stuart H. Reese
                             ---------------------------------
                             Stuart H. Reese
                             President
                  
                  
                  
                          MASSACHUSETTS MUTUAL LIFE
                          INSURANCE COMPANY
                  
                  
                          By: /s/ Edwin P. McCausland, Jr.
                             ---------------------------------
                             Edwin P. McCausland, Jr.
                             Vice President and
                             Managing Director

                                       8
<PAGE>
 
                   EXHIBIT A:  NET ASSET VALUE CALCULATIONS
                   ----------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.

                                       9
<PAGE>
 
                     EXHIBIT B:  FUND ACCOUNTING FUNCTIONS
                     -------------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

     (a)  Journals containing an itemized daily record in detail of all
     purchases and sales of securities, all receipts and disbursements of cash
     and all other debits and credits, as required;
 
     (b)  General and auxiliary ledgers reflecting all asset, liability,
     reserve, capital, income and expense accounts as required;
 
     (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.

                                      10
<PAGE>
 
   12. Preparing Blue Sky filings.

   13. Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14. Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15. Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16. Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.

                                      11
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



                   (As to the MassMutual Value Equity Fund)
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
               -------------------------------------------------


     This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the "Agreement"),
dated as of this 30th day of September, 1994 (the "Effective Date") is by and
between MassMutual Institutional Funds (the "Trust") on behalf of MassMutual
Value Equity Fund (the "Fund") and Massachusetts Mutual Life Insurance Company
(the "Manager").

     WHEREAS, The Fund is a series of the Trust, a Massachusetts business trust
which is an open-end diversified management investment company registered as
such with the Securities and Exchange Commission (the "Commission") pursuant to
the Investment Company Act of 1940, as amended (the "1940 Act"), and

     WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to enter
into this Agreement whereby the Manager will provide, or cause to be provided,
administrative and shareholder services for the Fund and assume certain expenses
of the Fund.

     NOW, THEREFORE, in consideration of the covenants and mutual promises of
the parties made to each other, it is hereby covenanted and agreed as follows:


              ARTICLE I:  ADMINISTRATIVE AND SHAREHOLDER SERVICES
              --------------------------------------------------- 

A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

     1. Maintain office facilities (which may be in the offices of the Manager
     or a corporate affiliate but shall be in such location as the Trust
     reasonably determines).

     2. Furnish statistical and research data, clerical services and stationery
     and office supplies.

     3. Compile data for, prepare for execution by the Fund and file all the
     Fund's federal and state tax returns and required tax filings other than
     those required by this Agreement to be made by the Fund's custodian and
     transfer agent.

     4. Prepare compliance filings pursuant to state securities laws with the
     advice of the Trust's counsel.

     5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
     amendments to its Registration Statements (on Form N-1A or any replacement
     therefor).
<PAGE>
 
     6. Compile data for, prepare and file timely Notices to the SEC required
     pursuant to Rule 24f-2 under the 1940 Act.

     7. Determine the daily pricing of the portfolio securities and computation
     of the net asset value and the net income of Fund in accordance with the
     Prospectus, resolutions of the Trust's Board of Trustees, and the
     procedures set forth in EXHIBIT A: NET ASSET VALUE CALCULATIONS.

     8. Keep and maintain the financial accounts and records of the Fund and
     provide the Trust with certain reports, as needed or requested by the Fund.

     9. Provide officers for the Trust as requested by the Trust's Board of
     Trustees.

     10. Perform fund accounting services for the Fund as set forth in EXHIBIT
     B: FUND ACCOUNTING FUNCTIONS.

     11. Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

     1. Those performed by the custodian for the Trust under the Custodian
     Agreement between the Trust and Investors Bank & Trust Company or any
     successor custodian (the "Bank");

     2. Those performed by the distributor(s) of the Trust's shares;

     3. Those provided by the Trust's independent legal counsel;

     4. Those performed by the independent public accountants for the Trust;

     5. Those performed by the Fund's investment manager;

     6. Those provided by the Trust's independent trustees, and

     7. Those provided by Investors Bank & Trust Company pursuant to a Transfer
     Agency Agreement.

D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.

                                       2
<PAGE>
 
                             ARTICLE II:  EXPENSES
                             ---------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

     1. Taxes and corporate fees payable to governmental agencies;

     2. Brokerage commissions (which may be higher than other brokers would
     charge if paid to a broker which provides brokerage and research services
     to the Manager for use in providing investment advice and management to the
     Fund and other accounts over which the Manager exercises investment
     discretion) and other capital items payable in connection with the purchase
     or sale of the Fund's investments (The words "brokerage and research
     services" shall have the meaning given in the Securities Exchange Act of
     1934 and the Rules and Regulations thereunder.);

     3. Interest on account of any borrowing by the Fund;

     4. Fees and expenses of the Trust's Trustees who are not interested persons
     (as defined in the 1940 Act) of the Manager or of the Trust;

     5. Fees payable to the Trust's certified independent public accountants;

     6. Fees paid to the Trust's independent legal counsel;

     7. Fees paid to the Fund's custodian;

     8. Fees paid to the Fund's Investment Manager, and

     9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
     applicable to the Fund.

                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the the Manager as the Trust and the Manager may from time to time
agree.

                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care. The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and agents, 


                                       3
<PAGE>
 
successors and assigns will be protected and will not be liable, and will be
indemnified and held harmless by the Trust for any error of judgement, mistake
of law, or any other loss, claim, damages, liabilities, or expenses arising by
reason of it acting hereunder, by the Trust except in the case of the
negligence, willful misconduct, bad faith, reckless disregard of duties or
obligations hereunder, including knowing violations of law, or fraud of the
Manager, or of its officers, employees, or agents, except as otherwise set forth
in this Article IV. Notwithstanding anything herein to the contrary, the Manager
shall have no discretion over the Trust's assets or choice of investments and
shall not be held liable hereunder for any losses suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independendent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.   Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God. In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.

             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
             -----------------------------------------------------

A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless 


                                       4
<PAGE>
 
sooner terminated as provided herein, will continue for an initial term of one-
year from the Effective Date and thereafter shall continue for successive one
year periods; provided however, that such continuance shall be specifically
approved at least annually by (i) the Board of Trustees of the Trust, or (ii) by
vote of a majority of the outstanding shares of the Fund (as defined in the 1940
Act), provided however, that in either event the continuance is also approved at
least annually by a majority of the Trust's Trustees who are not parties to this
Agreement or interested persons (as defined in the 1940 Act)(other than a
Trustees of the Trust) of the Manager or of the Trust by vote cast in person at
a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.

C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.

                                       5
<PAGE>
 
D.  Records and Confidentiality.  All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust.  In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights.  All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities.  The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

     (a) In the case of notices sent to the Trust to:

          MassMutual Institutional Trusts
          1295 State Street
          Springfield, Massachusetts 01111
          Attention:  Stephen L. Kuhn
                      Vice Presient & Secretary

     (b) In the case of notices sent to the Manager to:

          Massachusetts Mutual Life Insurance Company
          1295 State Street
          Springfield, Massachusetts 01111
          Attention:  Edmond F. Ryan
                      Vice President


                                       6
<PAGE>
 
In the case of notices sent to either party, a copy to the Bank to:

          Investors Bank & Trust Company
          P.O. Box 1537
          Boston, Massachusetts 02205-1537
          Attention: Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.

K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.


                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Administrative and

Shareholder Services Agreement to be executed on the day and year first above

written.


                    MASSMUTUAL INSTITUTIONAL FUNDS
                    on behalf of MassMutual Value Equity Fund


                    By:  /s/ Stuart H. Reese 
                        --------------------------------
                        Stuart H. Reese
                        President



                    MASSACHUSETTS MUTUAL LIFE
                    INSURANCE COMPANY


                    By:  /s/ Edwin P. McCausland, Jr.
                        -------------------------------- 
                        Edwin P. McCausland, Jr.
                        Vice President and
                        Managing Director



                                       8
<PAGE>
 
                    EXHIBIT A: NET ASSET VALUE CALCULATIONS
                    ---------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.


                                       9
<PAGE>
 
                     EXHIBIT B:  FUND ACCOUNTING FUNCTIONS
                     -------------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

      (a)  Journals containing an itemized daily record in detail of all
      purchases and sales of securities, all receipts and disbursements of cash
      and all other debits and credits, as required;
 
      (b)  General and auxiliary ledgers reflecting all asset, liability,
      reserve, capital, income and expense accounts as required;
 
      (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.

                                      10
<PAGE>
 
   12. Preparing Blue Sky filings.

   13. Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14. Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15. Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16. Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.


                                      11
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



              (As to the MassMutual Small Cap Value Equity Fund)



                                      13
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
               -------------------------------------------------

       This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the
"Agreement"), dated as of this 30th day of September, 1994 (the "Effective
Date") is by and between MassMutual Institutional Funds (the "Trust") on behalf
of MassMutual Small Cap Value Equity Fund (the "Fund") and Massachusetts Mutual
Life Insurance Company (the "Manager").

       WHEREAS, The Fund is a series of the Trust, a Massachusetts business
trust which is an open-end diversified management investment company registered
as such with the Securities and Exchange Commission (the "Commission") pursuant
to the Investment Company Act of 1940, as amended (the "1940 Act"), and

       WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to
enter into this Agreement whereby the Manager will provide, or cause to be
provided, administrative and shareholder services for the Fund and assume
certain expenses of the Fund.

       NOW, THEREFORE, in consideration of the covenants and mutual promises
of the parties made to each other, it is hereby covenanted and agreed as
follows:

              ARTICLE I:  ADMINISTRATIVE AND SHAREHOLDER SERVICES
              ---------------------------------------------------

A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

       1. Maintain office facilities (which may be in the offices of the Manager
       or a corporate affiliate but shall be in such location as the Trust
       reasonably determines).

       2. Furnish statistical and research data, clerical services and
       stationery and office supplies.

       3. Compile data for, prepare for execution by the Fund and file all the
       Fund's federal and state tax returns and required tax filings other than
       those required by this Agreement to be made by the Fund's custodian and
       transfer agent.

       4. Prepare compliance filings pursuant to state securities laws with the
       advice of the Trust's counsel.

       5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
       amendments to its Registration Statements (on Form N-1A or any
       replacement therefor).
<PAGE>
 
       6. Compile data for, prepare and file timely Notices to the SEC required
       pursuant to Rule 24f-2 under the 1940 Act.

       7. Determine the daily pricing of the portfolio securities and
       computation of the net asset value and the net income of Fund in
       accordance with the Prospectus, resolutions of the Trust's Board of
       Trustees, and the procedures set forth in EXHIBIT A: NET ASSET VALUE
       CALCULATIONS.

       8. Keep and maintain the financial accounts and records of the Fund and
       provide the Trust with certain reports, as needed or requested by the
       Fund.

       9. Provide officers for the Trust as requested by the Trust's Board of
       Trustees.

       10. Perform fund accounting services for the Fund as set forth in EXHIBIT
       B: FUND ACCOUNTING FUNCTIONS.

       11. Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

       1. Those performed by the custodian for the Trust under the Custodian
       Agreement between the Trust and Investors Bank & Trust Company or any
       successor custodian (the "Bank");

       2. Those performed by the distributor(s) of the Trust's shares;
 
       3. Those provided by the Trust's independent legal counsel;

       4. Those performed by the independent public accountants for the Trust;

       5. Those performed by the Fund's investment manager;

       6. Those provided by the Trust's independent trustees, and

       7. Those provided by Investors Bank & Trust Company pursuant to a
       Transfer Agency Agreement.

D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.


                                       2
<PAGE>
 
                             ARTICLE II:  EXPENSES
                             ---------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

       1. Taxes and corporate fees payable to governmental agencies;

       2. Brokerage commissions (which may be higher than other brokers would
       charge if paid to a broker which provides brokerage and research services
       to the Manager for use in providing investment advice and management to
       the Fund and other accounts over which the Manager exercises investment
       discretion) and other capital items payable in connection with the
       purchase or sale of the Fund's investments (The words "brokerage and
       research services" shall have the meaning given in the Securities
       Exchange Act of 1934 and the Rules and Regulations thereunder.);

       3. Interest on account of any borrowing by the Fund;

       4. Fees and expenses of the Trust's Trustees who are not interested
       persons (as defined in the 1940 Act) of the Manager or of the Trust;

       5. Fees payable to the Trust's certified independent public accountants;

       6. Fees paid to the Trust's independent legal counsel;

       7. Fees paid to the Fund's custodian;

       8. Fees paid to the Fund's Investment  Manager, and

       9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
       applicable to the Fund.


                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the  Manager as the Trust and the Manager may from time to time
agree.

                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care. The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and agents, 


                                       3
<PAGE>
 
successors and assigns will be protected and will not be liable, and will be
indemnified and held harmless by the Trust for any error of judgement, mistake
of law, or any other loss, claim, damages, liabilities, or expenses arising by
reason of it acting hereunder, by the Trust except in the case of the
negligence, willful misconduct, bad faith, reckless disregard of duties or
obligations hereunder, including knowing violations of law, or fraud of the
Manager, or of its officers, employees, or agents, except as otherwise set forth
in this Article IV. Notwithstanding anything herein to the contrary, the Manager
shall have no discretion over the Trust's assets or choice of investments and
shall not be held liable hereunder for any losses suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independendent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.   Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God. In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.

             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
             -----------------------------------------------------

A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless 


                                       4
<PAGE>
 
sooner terminated as provided herein, will continue for an initial term of one-
year from the Effective Date and thereafter shall continue for successive one
year periods; provided however, that such continuance shall be specifically
approved at least annually by (i) the Board of Trustees of the Trust, or (ii) by
vote of a majority of the outstanding shares of the Fund (as defined in the 1940
Act), provided however, that in either event the continuance is also approved at
least annually by a majority of the Trust's Trustees who are not parties to this
Agreement or interested persons (as defined in the 1940 Act)(other than a
Trustees of the Trust) of the Manager or of the Trust by vote cast in person at
a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.

C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.


                                       5
<PAGE>
 
D.  Records and Confidentiality.  All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust.  In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights.  All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities.  The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

       (a)  In the case of notices sent to the Trust to:

               MassMutual Institutional Trusts
               1295 State Street
               Springfield, Massachusetts 01111
               Attention:  Stephen L. Kuhn
                       Vice President & Secretary

       (b)  In the case of notices sent to the Manager to:

               Massachusetts Mutual Life Insurance Company
               1295 State Street
               Springfield, Massachusetts 01111
               Attention:  Edmond F. Ryan
                       Vice President

                                       6
<PAGE>
 
In the case of notices sent to either party, a copy to the Bank to:

               Investors Bank & Trust Company
               P.O. Box 1537
               Boston, Massachusetts 02205-1537
               Attention: Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.

K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.


                                       7
<PAGE>
 
       IN WITNESS WHEREOF, the parties hereto have caused this Administrative
and Shareholder Services Agreement to be executed on the day and year first
above written.


                       MASSMUTUAL INSTITUTIONAL FUNDS
                       on behalf of MassMutual Small Cap Value Equity Fund


                       By: /s/ Stuart H. Reese  
                           ------------------------------
                           Stuart H. Reese
                           President



                       MASSACHUSETTS MUTUAL LIFE
                       INSURANCE COMPANY


                       By: /s/ Edwin P. McCausland, Jr. 
                          -------------------------------
                          Edwin P. McCausland, Jr.
                          Vice President and
                          Managing Director


                                       8
<PAGE>
 
                   EXHIBIT A:  NET ASSET VALUE CALCULATIONS
                   ----------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.


                                       9
<PAGE>
 
                      EXHIBIT B:FUND ACCOUNTING FUNCTIONS
                      -----------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

      (a)  Journals containing an itemized daily record in detail of all
      purchases and sales of securities, all receipts and disbursements of cash
      and all other debits and credits, as required;
 
      (b)  General and auxiliary ledgers reflecting all asset, liability,
      reserve, capital, income and expense accounts as required;
 
      (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.


                                      10
<PAGE>
 
   12.Preparing Blue Sky filings.

   13.Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14.Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15.Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16.Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.


                                      11
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT



                                    Between



                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY



                                      And



                        MASSMUTUAL INSTITUTIONAL FUNDS



               (As to the MassMutual International Equity Fund)
<PAGE>
 
               ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT
               -------------------------------------------------

          This ADMINISTRATIVE AND SHAREHOLDER SERVICES AGREEMENT (the
"Agreement"), dated as of this 30th day of September, 1994 (the "Effective
Date") is by and between MassMutual Institutional Funds (the "Trust") on behalf
of MassMutual International Equity Fund (the "Fund") and Massachusetts Mutual
Life Insurance Company (the "Manager").

          WHEREAS, The Fund is a series of the Trust, a Massachusetts business
trust which is an open-end diversified management investment company registered
as such with the Securities and Exchange Commission (the "Commission") pursuant
to the Investment Company Act of 1940, as amended (the "1940 Act"), and

          WHEREAS, the Trust, on behalf of the Fund, and the Manager wish to
enter into this Agreement whereby the Manager will provide, or cause to be
provided, administrative and shareholder services for the Fund and assume
certain expenses of the Fund.

          NOW, THEREFORE, in consideration of the covenants and mutual promises
of the parties made to each other, it is hereby covenanted and agreed as
follows:

              ARTICLE I:  ADMINISTRATIVE AND SHAREHOLDER SERVICES
              ---------------------------------------------------
     
A.  General Responsibilities.  Subject to the exceptions set forth in Sub-
Section C hereof and subject to the direction and control of the Board of
Trustees of the Trust, the Manager will provide, or cause to be provided, all
services required for the administration of the Trust and the Fund, including
fund accounting, shareholder servicing, and transfer agency services.

B.  Specific Responsibilities.  Without limiting the responsibilities of the
Manager, the Manager will:

     1. Maintain office facilities (which may be in the offices of the Manager
     or a corporate affiliate but shall be in such location as the Trust
     reasonably determines).

     2. Furnish statistical and research data, clerical services and stationery
     and office supplies.

     3. Compile data for, prepare for execution by the Fund and file all the
     Fund's federal and state tax returns and required tax filings other than
     those required by this Agreement to be made by the Fund's custodian and
     transfer agent.

     4. Prepare compliance filings pursuant to state securities laws with the
     advice of the Trust's counsel.

     5. Prepare the Trust's Annual and Semi-Annual Reports to Shareholders and
     amendments to its Registration Statements (on Form N-1A or any replacement
     therefor).

     6. Compile data for, prepare and file timely Notices to the SEC required
     pursuant to Rule 
<PAGE>
 
     24f-2 under the 1940 Act.

     7. Determine the daily pricing of the portfolio securities and computation
     of the net asset value and the net income of Fund in accordance with the
     Prospectus, resolutions of the Trust's Board of Trustees, and the
     procedures set forth in EXHIBIT A: NET ASSET VALUE CALCULATIONS.

     8. Keep and maintain the financial accounts and records of the Fund and
     provide the Trust with certain reports, as needed or requested by the Fund.

     9. Provide officers for the Trust as requested by the Trust's Board of
     Trustees.

     10. Perform fund accounting services for the Fund as set forth in EXHIBIT
     B: FUND ACCOUNTING FUNCTIONS.

     11. Generally assist in all aspects of the operations of the Fund.

C.  Excepted Responsibilities.  The Manager shall not perform the following
services pursuant to this Agreement:

     1. Those performed by the custodian for the Trust under the Custodian
     Agreement between the Trust and Investors Bank & Trust Company or any
     successor custodian (the "Bank");

     2. Those performed by the distributor(s) of the Trust's shares;

     3. Those provided by the Trust's independent legal counsel;

     4. Those performed by the independent public accountants for the Trust;

     5. Those performed by the Fund's investment manager;

     6. Those provided by the Trust's independent trustees, and

     7. Those provided by Investors Bank & Trust Company pursuant to a Transfer
     Agency Agreement.

D.  Sub-contract Rights.  The Manager may in its discretion (subject only to
approval by the Trust's Board of Trustees) delegate or subcontract some or all
of the Manager's duties, but shall remain ultimately responsible for the
provision of such services. The Manager shall be responsible for payment of all
compensation to any person or entity that Manager delegates any duties
hereunder.



                                       2
<PAGE>
 
                             ARTICLE II:  EXPENSES
                             ---------------------

A.  Expenses.  The Manager shall assume all expenses of the Trust and the Fund,
including the Manager's reasonable out-of-pocket disbursements; provided,
however, that the Fund or the Trust shall pay:

     1. Taxes and corporate fees payable to governmental agencies;

     2. Brokerage commissions (which may be higher than other brokers would
     charge if paid to a broker which provides brokerage and research services
     to the Manager for use in providing investment advice and management to the
     Fund and other accounts over which the Manager exercises investment
     discretion) and other capital items payable in connection with the purchase
     or sale of the Fund's investments (The words "brokerage and research
     services" shall have the meaning given in the Securities Exchange Act of
     1934 and the Rules and Regulations thereunder.);

     3. Interest on account of any borrowing by the Fund;

     4. Fees and expenses of the Trust's Trustees who are not interested persons
     (as defined in the 1940 Act) of the Manager or of the Trust;

     5. Fees payable to the Trust's certified independent public accountants;

     6. Fees paid to the Trust's independent legal counsel;

     7. Fees paid to the Fund's custodian;

     8. Fees paid to the Fund's Investment Manager, and

     9. Payments due pursuant to any 12b-1 Plan adopted by the Trust and
     applicable to the Fund.

                          ARTICLE III:  COMPENSATION
                          --------------------------

The Manager's Compensation.  For the services to be rendered and the facilities
to be furnished by the Manager as provided for in this Agreement, the Trust will
compensate the  Manager as the Trust and the Manager may from time to time
agree.

                         ARTICLE IV:  STANDARD OF CARE
                         -----------------------------

A.  Standard of Care.  The Manager shall use reasonable care in performing its
duties hereunder.  In the performance of such duties, the Manager its directors,
officers, employees, and agents, successors and assigns will be protected and
will not be liable, and will be indemnified 


                                       3
<PAGE>
 
and held harmless by the Trust for any error of judgement, mistake of law, or
any other loss, claim, damages, liabilities, or expenses arising by reason of it
acting hereunder, by the Trust except in the case of the negligence, willful
misconduct, bad faith, reckless disregard of duties or obligations hereunder,
including knowing violations of law, or fraud of the Manager, or of its
officers, employees, or agents, except as otherwise set forth in this Article
IV. Notwithstanding anything herein to the contrary, the Manager shall have no
discretion over the Trust's assets or choice of investments and shall not be
held liable hereunder for any losses suffered by the Fund.

B.  Legal Advice.  On issues that are legal in nature, the Manager will be
entitled to receive and act upon the advice of independent legal counsel of its
own selection, provided such counsel is chosen with reasonable care and which
can be counsel for the Trust, and will be without liability for any action taken
or thing done or omitted to be done in accordance with this Agreement in good
faith conformity with such advice.  Except as otherwise agreed to by the Trust,
the Manager shall pay the fees and expenses of such counsel, unless such counsel
is the Trust's counsel.  On issues that are related to financial accounting
matters, the Manager will be entitled to receive and act upon the advice of the
Trust's independent public accountants, provided that the Manager promptly
notifies the Trust that it has sought such advice and discloses the nature of
the matter.  Except as otherwise agreed to by the parties, the Trust shall bear
the expenses and costs of obtaining advice from its independent public
accountants, if such advice is sought pursuant to this subsection B of Article
IV.

C.  Good Faith Reliance.  The Manager will be protected and not be liable, and
will be indemnified and held harmless for any action taken or omitted to be
taken by it in reliance upon any document, certificate or instrument which it
reasonably  believes to be genuine and to be signed or presented by the proper
person or persons.

D.  Damages.   Notwithstanding anything in this Agreement to the contrary, in no
event shall the Manager or the Trust be liable to the other, or to any third
party, for special, punitive or consequential damages arising, directly or
indirectly from this Agreement, even if said party has been advised by the other
party of the possibility of such damages.

E.  Acts of God. In the event either party is unable to perform its obligations
under the terms of this Agreement because of acts of God, interruption of
electrical power or other utilities, equipment or transmission failure or damage
reasonably beyond its control, or other causes reasonably beyond its control,
such party shall not be liable to the other for any damages resulting from such
failure to perform or otherwise from such causes.  The Manager, the Trust and
MassMutual shall notify each other as soon as reasonably possible following the
occurrence of an event described in this subsection.

             ARTICLE V:  EFFECTIVE DATE, TERMINATION AND AMENDMENT
             -----------------------------------------------------

A.  Effective Date.  This Agreement will become effective on the Effective Date
and, unless sooner terminated as provided herein, will continue for an initial
term of one-year from the 



                                       4
<PAGE>
 
Effective Date and thereafter shall continue for successive one year periods;
provided however, that such continuance shall be specifically approved at least
annually by (i) the Board of Trustees of the Trust, or (ii) by vote of a
majority of the outstanding shares of the Fund (as defined in the 1940 Act),
provided however, that in either event the continuance is also approved at least
annually by a majority of the Trust's Trustees who are not parties to this
Agreement or interested persons (as defined in the 1940 Act)(other than a
Trustees of the Trust) of the Manager or of the Trust by vote cast in person at
a meeting called for the purpose of voting on such approval.

B.  Termination.  Anything to the contrary herein notwithstanding, (1) this
Agreement may at any time be terminated by the Trust on 90 days' written notice
to the Manager without the payment of any penalty either by the Board of
Trustees of the Trust or by vote of majority of the outstanding shares of the
Fund (as defined in the 1940 Act); (2) this Agreement shall immediately
terminate in the event of its assignment (within the meaning of the 1940 Act);
and (3) this Agreement may be terminated by the Manager on 90 days' written
notice to the Trust without the payment of any penalty.  Any notice under this
Agreement shall be given in writing, addressed and delivered, or mailed
postpaid, to the other party at the principal office of such party.

C.  Amendment.  This Agreement may be amended at any time by mutual written
consent of the parties, provided that such consent on the part of the Trust
shall have been approved at a meeting by the vote of a majority of the
outstanding shares of the Fund and by written majority of the Trustees of the
Trust who are not parties to this Agreement or interested persons (within the
meaning of the 1940 Act) of the Trust or of the Manager by vote cast in person
at a meeting called for the purpose of acting on such amendment.

                          ARTICLE VI:  MISCELLANEOUS
                          --------------------------

A.  Services Not Exclusive.  The services of the Manager to the Trust and the
Fund under this Agreement are not exclusive and the Manager shall be free to
render similar services to others.

B.  Use of Name by the Trust.  The Trust recognizes the Manager's control of the
name "MassMutual" and agrees that its right to use this name is non-exclusive
and can be terminated by the Manager at any time.  The use of such name will
automatically be terminated if at any time the Manager, a subsidiary or an
affiliate of the Manager ceases to be investment manager for the Fund.

C.  Interested and Affiliated Persons.  It is understood that members of the
Board of Trustees, officers, employees or agents of the Trust or the Fund may
also be directors, officers, employees or agents of the Manager, and Sub-
Advisers, and that the Manager and Sub-Advisers, and their directors, officers,
employees or agents may be interested in the Fund as shareholders or otherwise.



                                       5
<PAGE>
 
D.  Records and Confidentiality. All records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by the Manager or
supplied to the Manager by the Trust or the Fund) are the property and subject
to the control of the Trust. In the event of the termination of this Agreement,
all such records in the possession of the Manager shall be promptly turned over
to the Trust free from any claim or retention of rights. All such records shall
be deemed to be confidential in nature and the Manager shall not disclose or use
any records or information obtained pursuant to this Agreement in any manner
whatsoever except as expressly authorized by the Trust or as required by federal
or state regulatory authorities. The Manager shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Manager or
the Trust, present or future, any information, reports or other material
obtained pursuant to this Agreement which any such body may request or require
pursuant to applicable laws or regulations.

E.  Disclaimer of Liability.  A copy of the Agreement and Declaration of Trust
of the Trust is on file with the Secretary of The Commonwealth of Massachusetts,
and notice is hereby given that this instrument is executed on behalf of the
Board of Trustees of the Trust as Trustees and not individually and that the
obligations of this instrument are not binding upon any of the Trustees or
shareholders individually but are binding upon the assets and property of the
Trust; provided, however, that the Agreement and Declaration of Trust of the
Trust provides that the assets of a particular series of the Trust shall under
no circumstances be charged with liabilities attributable to any other series of
the Trust and that all persons extending credit to, or contracting with or
having any claim against a particular series of the Trust, shall look only to
the assets of that particular series for payment of such credit, contract or
claim.

F.  Notices.  Any notice or other instrument in writing authorized or required
by this Agreement to be given to either party hereto will be sufficiently given
if addressed to such party and mailed or delivered to it at its office at the
address set forth below; namely:

     (a)  In the case of notices sent to the Trust to:

             MassMutual Institutional Trusts
             1295 State Street
             Springfield, Massachusetts 01111
             Attention:  Stephen L. Kuhn
                         Vice President & Secretary

     (b)  In the case of notices sent to the Manager to:

             Massachusetts Mutual Life Insurance Company
             1295 State Street
             Springfield, Massachusetts 01111
             Attention:  Edmond F. Ryan
                         Vice President



                                       6
<PAGE>
 
In the case of notices sent to either party, a copy to the Bank to:

             Investors Bank & Trust Company
             P.O. Box 1537
             Boston, Massachusetts 02205-1537
             Attention:  Richard Boorman

or at such other place as such party may from time to time designate in writing.

G.  Insurance Coverage.  The Bank shall at all times maintain insurance
coverages adequate for the nature of its operations, including directors and
officers, errors and omissions, and fidelity bond insurance coverages.  The Bank
shall have the Trust named as a Certificate Holder on each of these coverages,
and provide MassMutual with Certificates of Insurance at each policy renewal.
The Certificates shall provide that MassMutual receive a minimum of twenty (20)
days' written notice of cancellation, non-renewal, or material change of policy
coverages.  The Bank shall provide MassMutual with copies of its insurance
policies, upon request.  If at any time, due to a material adverse change in
policy coverages, MassMutual reasonably believes that such coverages are
insufficient in any material respect, or if any policy is placed with an insurer
with an A.M. Best rating of less than A 12, the Bank shall take reasonable steps
to satisfy MassMutual's concerns.

H.  Business Continuity.   Notwithstanding anything in this Agreement to the
contrary, the Bank shall have in place comprehensive business continuity and
disaster recovery procedures and systems and shall provide MassMutual, at least
annually, test results of such procedures and systems.

I.  Parties.  This Agreement will be binding upon and shall inure to the benefit
of the parties hereto and their respective successors and assigns; provided,
however, that this Agreement will not be assignable by the Trust without the
written consent of the Manager or by the Manager without the written consent of
the Trust, authorized and approved by its Board; and provided further that
termination proceedings pursuant to Article V, Section B hereof will not be
deemed to be an assignment within the meaning of this provision.

J.  Governing Law.  This Agreement and all performance hereunder will be
governed by the laws of the Commonwealth of Massachusetts.

K.  Counterparts.  This Agreement may be executed in any number of counterparts,
each of which shall be deemed to be an original, but such counterparts shall,
together, constitute only one instrument.


                                       7
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Administrative and
Shareholder Services Agreement to be executed on the day and year first above
written.


                            MASSMUTUAL INSTITUTIONAL FUNDS
                            on behalf of MassMutual International Equity Fund


                            By: /s/ Stuart H. Reese
                               ---------------------------------------
                               Stuart H. Reese
                               President



                            MASSACHUSETTS MUTUAL LIFE
                            INSURANCE COMPANY


                            By: /s/ Edwin P. McCausland, Jr.
                               ---------------------------------------
                               Edwin P. McCausland, Jr.
                               Vice President and
                               Managing Director



                                       8
<PAGE>
 
                   EXHIBIT A:  NET ASSET VALUE CALCULATIONS
                   ----------------------------------------


MassMutual shall compute and, unless otherwise directed by the Board, determine
as of the close of business on the New York Stock Exchange on each day on which
said Exchange is open for unrestricted trading and as of such other hours, if
any, as may be authorized by the Board the net asset value and the public
offering price of a share of capital stock of the Trust, such determination to
be made in accordance with the provisions of the Articles and By-laws of the
Trust and Prospectus and Statement of Additional Information relating to the
Trust, as they may from time to time be amended, and any applicable resolutions
of the Board at the time in force and applicable and promptly to notify the
Trust, the proper exchange and the NASD or such other persons as the Trust may
request of the results of such computation and determination.

In computing the net asset value hereunder, MassMutual may rely in good faith
upon information furnished to it by any Authorized Person in respect of (i) the
manner of accrual of the liabilities of the Trust and in respect of liabilities
of the Trust not appearing on its books of account kept by the Bank, (ii)
reserves, if any, authorized by the Board or that no such reserves have been
authorized, (iii) the source of the quotations to be used in computing the net
asset value, (iv) the value to be assigned to any security for which no price
quotations are available, and (v) the method of computation of the public
offering price on the basis of the net asset value of the shares, and the Bank
shall not be responsible for any loss occasioned by such reliance or for any
good faith reliance on any quotations received from a source pursuant to (iii)
above.



                                       9
<PAGE>
 
                     EXHIBIT B:  FUND ACCOUNTING FUNCTIONS
                     -------------------------------------

MassMutual shall have the following responsibilities pursuant to (S)10 of
Article I(B):

   1. Maintain the books and records of the funds pursuant to applicable rules
   of the Investment Company Act of 1940, including the following:

      (a)  Journals containing an itemized daily record in detail of all
      purchases and sales of securities, all receipts and disbursements of cash
      and all other debits and credits, as required;
 
      (b)  General and auxiliary ledgers reflecting all asset, liability,
      reserve, capital, income and expense accounts as required;
 
      (c)  A monthly trial balance of all ledger accounts as required.

   2. Daily pricing of all portfolio securities using securities valuations or
   other methods as may be approved by the fund's Trustees from time to time.

   3. Daily posting of all income and expense accruals and reconciliation of
   general ledger balances and total shares outstanding.

   4. Computation of the daily net asset value as of the close of business of
   the New York Stock Exchange on each day on which the Exchange is open for
   business (See Exhibit C: Net Asset Value Calculations).

   5. Reporting of the daily net asset value and dividend distributions to
   transfer agent, fund, management, NASDAQ, and others as requested by 5:30
   p.m. each day.

   6. Calculation of dividends and capital gain distributions.

   7. Routine monitoring of the fund's investments and providing prompt notice
   of any violations of the diversification requirements, investment
   restrictions or investment policies.

   8. Calculation of yields and returns pursuant to S.E.C. formulas, and any
   other performance calculations as required.

   9. Providing fund prices and performance numbers to industry reporting
   services.

   10. Preparing reports on expense limitations and net asset value analysis, as
   requested.

   11. Maintain historical records of all fund net asset values and dividend
   distributions.



                                      10
<PAGE>
 
   12. Preparing Blue Sky filings.

   13. Preparing audited annual and unaudited semi-annual reports including
   statement of investments, financial statements and footnotes.

   14. Producing documents and responding to inquiries during S.E.C. audit, IRS
   audit and others as required.

   15. Providing the portfolio managers with cash availability based on security
   settlements, shareholder activity, maturities, and income collections for
   each fund by 8:30 a.m. each valuation day.

   16. Taking whatever action is needed to accomplish the transfer of assets
   from the Bank of New York to Investors Bank and Trust Company in a timely and
   orderly manner.



                                      11

<PAGE>
 
                                                                   Exhibit 11(b)




                      CONSENT OF INDEPENDENT ACCOUNTANTS


To the Board of Trustees of
MassMutual Institutional Funds:
    
We consent to the inclusion in Post-Effective Amendment No. 6 to the
Registration Statement under the Securities Act of 1933 of MassMutual
Institutional Funds on Form N-1A (File No. 33-73824) of our report dated
February 14, 1997, on our audit of the financial statements and financial
highlights of MassMutual Institutional Funds (comprising the MassMutual Prime
Fund, MassMutual Short-Term Bond Fund, MassMutual Core Bond Fund, MassMutual
Balanced Fund, MassMutual Value Equity Fund, MassMutual Small Cap Value Equity
Fund, and MassMutual International Equity Fund), which report is included in the
Annual Report for the year ended December 31, 1996, which is included in this
Registration Statement. We also consent to the reference to our Firm under the
caption "Experts" in the Statement of Additional Information.     


/s/ Coopers & Lybrand L.L.P.




Springfield, Massachusetts
November 26, 1997

<PAGE>
 
                                                                    Exhibit 15.A

                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                     MASSMUTUAL PRIME FUND: CLASS A SHARES
                     -------------------------------------

                          SERVICE PLAN AND AGREEMENT



This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual Prime Fund (the "Fund"), a series of the MassMutual
Institutional Funds, a Massachusetts business trust (the "Trust"), adopted
pursuant to the provisions of Rule 12b-1 under the Investment Company Act of
1940 (the "Act") and the related agreement between the Trust and Oppenheimer
Funds Distributor, Inc., the principal underwriter of the Trust's shares (the
"Distributor.")  During the effective term of this Plan, the Trust may make
payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                       1
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

        (b)   that such agreement shall terminate automatically in the event of
        its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.

Executed as of this 26th day of November, 1997.


MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
PRIME FUND


BY:                                     BY:
   --------------------------------        -------------------------------

                                       2
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                MASSMUTUAL SHORT-TERM BOND FUND: CLASS A SHARES
                -----------------------------------------------

                           SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual Short-Term Bond Fund (the "Fund"), a series of the
MassMutual Institutional Funds, a Massachusetts business trust (the "Trust"),
adopted pursuant to the provisions of Rule 12b-1 under the Investment Company
Act of 1940 (the "Act") and the related agreement between the Trust and
Oppenheimer Funds Distributor, Inc., the principal underwriter of the Trust's
shares (the "Distributor.")  During the effective term of this Plan, the Trust
may make payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                       3
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

        (b)   that such agreement shall terminate automatically in the event of
        its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.


Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
SHORT-TERM BOND FUND


BY:                                     BY:
   --------------------------------        -------------------------------

                                       4
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                   MASSMUTUAL CORE BOND FUND: CLASS A SHARES
                   -----------------------------------------

                          SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual Core-Bond Fund (the "Fund"), a series of the MassMutual
Institutional Funds, a Massachusetts business trust (the "Trust"), adopted
pursuant to the provisions of Rule 12b-1 under the Investment Company Act of
1940 (the "Act") and the related agreement between the Trust and Oppenheimer
Funds Distributor, Inc., the principal underwriter of the Trust's shares (the
"Distributor.")  During the effective term of this Plan, the Trust may make
payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                       5
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

        (b)   that such agreement shall terminate automatically in the event of
        its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.


Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
CORE BOND FUND


BY:                                     BY:
   --------------------------------        -------------------------------

                                       6
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                   MASSMUTUAL BALANCED FUND: CLASS A SHARES
                   ----------------------------------------

                          SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual Balanced Fund (the "Fund"), a series of the MassMutual
Institutional Funds, a Massachusetts business trust (the "Trust"), adopted
pursuant to the provisions of Rule 12b-1 under the Investment Company Act of
1940 (the "Act") and the related agreement between the Trust and Oppenheimer
Funds Distributor, Inc., the principal underwriter of the Trust's shares (the
"Distributor.")  During the effective term of this Plan, the Trust may make
payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                       7
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

        (b)   that such agreement shall terminate automatically in the event of
        its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.

Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
BALANCED FUND


BY:                                     BY:
   --------------------------------        -------------------------------

                                       8
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                 MASSMUTUAL VALUE EQUITY FUND: CLASS A SHARES
                 --------------------------------------------

                           SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual Value Equity Fund (the "Fund"), a series of the
MassMutual Institutional Funds, a Massachusetts business trust (the "Trust"),
adopted pursuant to the provisions of Rule 12b-1 under the Investment Company
Act of 1940 (the "Act") and the related agreement between the Trust and
Oppenheimer Funds Distributor, Inc., the principal underwriter of the Trust's
shares (the "Distributor.")  During the effective term of this Plan, the Trust
may make payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                       9
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

        (b)   that such agreement shall terminate automatically in the event of
        its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.


Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
VALUE EQUITY FUND


BY:                                    BY:
   --------------------------------       -------------------------------

                                      10
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

            MASSMUTUAL SMALL CAP VALUE EQUITY FUND: CLASS A SHARES
            ------------------------------------------------------ 

                           SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual Small Cap Value Equity Fund (the "Fund"), a series of
the MassMutual Institutional Funds, a Massachusetts business trust (the
"Trust"), adopted pursuant to the provisions of Rule 12b-1 under the Investment
Company Act of 1940 (the "Act") and the related agreement between the Trust and
Oppenheimer Funds Distributor, Inc., the principal underwriter of the Trust's
shares (the "Distributor.")  During the effective term of this Plan, the Trust
may make payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                      11
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

        (b)   that such agreement shall terminate automatically in the event of
        its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.

Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
SMALL CAP VALUE EQUITY FUND


BY:                                     BY:
   --------------------------------        -------------------------------

                                      12
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

             MASSMUTUAL INTERNATIONAL EQUITY FUND: CLASS A SHARES
             ---------------------------------------------------- 

                          SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Service Plan of the Class A
shares of the MassMutual International Equity Fund (the "Fund"), a series of the
MassMutual Institutional Funds, a Massachusetts business trust (the "Trust"),
adopted pursuant to the provisions of Rule 12b-1 under the Investment Company
Act of 1940 (the "Act") and the related agreement between the Trust and
Oppenheimer Funds Distributor, Inc., the principal underwriter of the Trust's
shares (the "Distributor.")  During the effective term of this Plan, the Trust
may make payments to Massachusetts Mutual Life Insurance Company, the Fund's
Administrator ("MassMutual"), upon the terms and conditions hereinafter set
forth:

SECTION 1.  The Trust will pay service fees to MassMutual for services provided
and expenses incurred by it for purposes of maintaining or providing personal
services to Class A shareholders (the "Servicing Fee").  The amount of such
payments and the purposes for which they are made shall be determined by the
Qualified Trustees (as defined below).  The Servicing Fee may be spent by
MassMutual on account of personal services rendered to Class A shareholders of
the Fund and/or maintenance of Class A shareholder accounts. MassMutual's
Servicing Fee expenditures may include, but shall not be limited to,
compensation to, and expenses (including telephone and overhead expenses) of
financial consultants or other employees of MassMutual, the Fund's Distributor
or Sub-Distributor, pension consultants or participating or introducing brokers
and other financial intermediaries who assist investors in completing
application forms and selecting dividend and other account options; who aid in
the process of purchase or redemption requests for Class A shares or the
processing of dividend payments with respect to Class A shares; who provide
information periodically to Class A shareholders showing their position in Class
A shares; who prepare, print and deliver prospectuses and shareholder reports to
prospective Class A shareholders; who oversee compliance with federal and state
laws pertaining to the sale of Class A shares; who issue confirmations for
transactions by Class A shareholders; who forward communications from the Fund
to Class A shareholders; who render advice regarding the suitability of
particular investment opportunities offered by the Fund in light of shareholder
needs; who provide and maintain elective shareholder services; who furnish
shareholder sub-accounting; who provide and maintain pre-authorized investment
plans for Class A shareholders; who respond to inquiries from Class A
shareholders relating to such services; and/or who provide such similar services
as permitted under applicable statutes, rules or regulations.

Payments under this Section 1 of the Plan shall not exceed in any fiscal year
the annual rate of .25% of the Fund's average daily net assets attributable to
Class A shares.  A majority of the Qualified Trustees may, at any time and from
time to time, reduce the amount of such payments, or may suspend the operation
of the Plan for such period or periods of time as they may determine.

SECTION 2.  To the extent that any payments made by the Fund to MassMutual,
including payment of management and administrative fees, should be deemed to be
indirect financing of any activity primarily intended to result in the sale of
shares issued by the Fund within the context of Rule 12b-1 under the Act, then
such payments shall be deemed to be authorized by this Plan.

SECTION 3.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

                                      13
<PAGE>
 
SECTION 4.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 3.

SECTION 5.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 6.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class A shares
of the Fund.

SECTION 7.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a)   that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class A shares of the Fund, on not
        more than 60 days' written notice to any other party to the agreement;
        and

       (b)   that such agreement shall terminate automatically in the event of
       its assignment.

SECTION 8.  This Plan may not be amended to increase materially the amount
permitted pursuant to Sections 1 hereof without the approval of a majority of
the outstanding Class A shares of the Fund, and all material amendments to this
Plan shall be approved in the manner provided for approval of this Plan in
Section 3.

SECTION 9.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 10.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class A shares of the Fund.

Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL                MASSACHUSETTS MUTUAL LIFE
FUNDS ON BEHALF OF MASSMUTUAL           INSURANCE COMPANY
INTERNATIONAL EQUITY FUND


BY:                                     BY:
   --------------------------------        -------------------------------

                                      14

<PAGE>
 
                                                                    Exhibit 15.B

                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                     MASSMUTUAL PRIME FUND: CLASS Y SHARES
                     -------------------------------------

                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual Prime Fund (the "Fund"), a series
of the MassMutual Institutional Funds, a Massachusetts business trust (the
"Trust"), adopted pursuant to the provisions of Rule 12b-1 under the Investment
Company Act of 1940 (the "Act") and the related agreement between the Trust and
Oppenheimer Funds Distributor, Inc., the principal underwriter of the Trust's
shares (the "Distributor").  During the effective term of this Plan, the Trust
may make payments to Massachusetts Mutual Life Insurance Company ("MassMutual")
upon the terms and conditions hereinafter set forth:


SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.


SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:


        (a) that such agreement may be terminated at any time, without payment
        of any penalty,by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class Y shares of the Fund, on not
        more than 60 days' written notice to any other party to 

                                       1
<PAGE>
 
  the agreement;and



  (b) that such agreement shall terminate automatically in the event of its
     assignment.

SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.

SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.

Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL
PRIME FUND

BY:  _____________________________


MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________

                                       2
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                MASSMUTUAL SHORT-TERM BOND FUND: CLASS Y SHARES
                -----------------------------------------------

                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT

This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual Short-Term Bond Fund (the "Fund"),
a series of the MassMutual Institutional Funds, a Massachusetts business trust
(the "Trust"), adopted pursuant to the provisions of Rule 12b-1 under the
Investment Company Act of 1940 (the "Act") and the related agreement between the
Trust and Oppenheimer Funds Distributor, Inc., the principal underwriter of the
Trust's shares (the "Distributor").  During the effective term of this Plan, the
Trust may make payments to Massachusetts Mutual Life Insurance Company
("MassMutual") upon the terms and conditions hereinafter set forth:


SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.

SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a) that such agreement may be terminated at any time, without payment
        of any penalty,by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class Y shares of the Fund, on not
        more than 60 days' written notice to any other party to 

                                       3
<PAGE>
 
 the agreement;and

 (b) that such agreement shall terminate automatically in the event of its
 assignment.


SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.

SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.

Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL
SHORT-TERM BOND FUND

BY:  _____________________________

MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________

                                       4
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                   MASSMUTUAL CORE BOND FUND: CLASS Y SHARES
                   -----------------------------------------

                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT

This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual Core Bond Fund (the "Fund"), a
series of the MassMutual Institutional Funds, a Massachusetts business trust
(the "Trust"), adopted pursuant to the provisions of Rule 12b-1 under the
Investment Company Act of 1940 (the "Act") and the related agreement between the
Trust and Oppenheimer Funds Distributor, Inc., the principal underwriter of the
Trust's shares (the "Distributor").  During the effective term of this Plan, the
Trust may make payments to Massachusetts Mutual Life Insurance Company
("MassMutual") upon the terms and conditions hereinafter set forth:

SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.

SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a) that such agreement may be terminated at any time, without payment
        of any penalty,by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class Y shares of the Fund, on
        not more than 60 days' written notice to any other party to

                                       5
<PAGE>
 
  the agreement; and

  (b) that such agreement shall terminate automatically in the event of its
     assignment.


SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.

SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.

Executed as of this 26th day of November, 1997.


MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL
CORE BOND FUND

BY:  _____________________________


MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________



 

                                       6
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                   MASSMUTUAL BALANCED FUND: CLASS Y SHARES
                   ----------------------------------------

                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT

This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual Balanced Fund (the "Fund"), a
series of the MassMutual Institutional Funds, a Massachusetts business trust
(the "Trust"), adopted pursuant to the provisions of Rule 12b-1 under the
Investment Company Act of 1940 (the "Act") and the related agreement between the
Trust and Oppenheimer Funds Distributor, Inc., the principal underwriter of the
Trust's shares (the "Distributor").  During the effective term of this Plan, the
Trust may make payments to Massachusetts Mutual Life Insurance Company
("MassMutual") upon the terms and conditions hereinafter set forth:

SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.

SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a) that such agreement may be terminated at any time, without payment
        of any penalty, by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class Y shares of the Fund, on not
        more than 60 days' wri tten notice to any other party to 

                                       7
<PAGE>
 
  the agreement; and

  (b) that such agreement shall terminate automatically in the event of its
      assignment.

SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.

SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.

Executed as of this 26th day of November, 1997.


MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL

BALANCED FUND


BY:  _____________________________


MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________

                                       8
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                 MASSMUTUAL VALUE EQUITY FUND: CLASS Y SHARES
                 --------------------------------------------

                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT


This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual Value Equity Fund (the "Fund"), a
series of the MassMutual Institutional Funds, a Massachusetts business trust
(the "Trust"), adopted pursuant to the provisions of Rule 12b-1 under the
Investment Company Act of 1940 (the "Act") and the related agreement between the
Trust and Oppenheimer Funds Distributor, Inc., the principal underwriter of the
Trust's shares (the "Distributor").  During the effective term of this Plan, the
Trust may make payments to Massachusetts Mutual Life Insurance Company
("MassMutual") upon the terms and conditions hereinafter set forth:

SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.

SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

(a) that such agreement may be terminated at any time, without payment of any
penalty,by vote of a majority of the Qualified Trustees or by vote of a majority
o the outstanding Class Y shares of the Fund, on not more than 60 days' written
notice to any other party to 

                                       9
<PAGE>
 
     the agreement; and
   
     (b) that such agreement shall terminate automatically in the event of its
     assignment.

SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.

SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.


Executed as of this 26th day of November, 1997.


MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL
VALUE EQUITY FUND

BY:  _____________________________


MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________



 

                                       10
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                MASSMUTUAL SMALL CAP VALUE EQUITY FUND: CLASS Y SHARES
                ------------------------------------------------------

                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT

This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual Small Cap Value Equity Fund (the
"Fund"), a series of the MassMutual Institutional Funds, a Massachusetts
business trust (the "Trust"), adopted pursuant to the provisions of Rule 12b-1
under the Investment Company Act of 1940 (the "Act") and the related agreement
between the Trust and Oppenheimer Funds Distributor, Inc., the principal
underwriter of the Trust's shares (the "Distributor").  During the effective
term of this Plan, the Trust may make payments to Massachusetts Mutual Life
Insurance Company ("MassMutual") upon the terms and conditions hereinafter set
forth:

SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.

SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:


        (a) that such agreement may be terminated at any time, without payment
        of any penalty,by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class Y shares of the Fund, on not
        more than 60 days' written notice to any other party to

                                       11
<PAGE>
 
  the agreement; and

  (b) that such agreement shall terminate automatically in the event of its
      assignment.

SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.

SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.

Executed as of this 26th day of November, 1997.


MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL
SMALL CAP VALUE EQUITY FUND

BY:  _____________________________


MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________



 

                                       12
<PAGE>
 
                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                 MASSMUTUAL INTERNATIONAL EQUITY FUND: CLASS Y SHARES
                 ----------------------------------------------------
                                    
                  DISTRIBUTION AND SERVICE PLAN AND AGREEMENT

This Plan and Agreement (the "Plan") constitutes the Distribution and Service
Plan of the Class Y shares of the MassMutual International Equity Fund (the
"Fund"), a series of the MassMutual Institutional Funds, a Massachusetts
business trust (the "Trust"), adopted pursuant to the provisions of Rule 12b-1
under the Investment Company Act of 1940 (the "Act") and the related agreement
between the Trust and Oppenheimer Funds Distributor, Inc., the principal
underwriter of the Trust's shares (the "Distributor").  During the effective
term of this Plan, the Trust may make payments to Massachusetts Mutual Life
Insurance Company ("MassMutual") upon the terms and conditions hereinafter set
forth:


SECTION 1.  To the extent that any payments made by the Fund to Massachusetts
Mutual Life Insurance Company, including payment of management and
administrative fees, should be deemed to be indirect financing of any activity
primarily intended to result in the sale of shares issued by the Fund within the
context of Rule 12b-1 under the Act, then such payments shall be deemed to be
authorized by the Plan.

SECTION 2.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of the majority (or whatever greater
percentage may, from time to time, be required by Section 12(b) of the Act or
the rules and regulations thereunder) of both (i) the Trustees of the Trust, and
(ii) the Qualified Trustees of the Trust, cast in person at a meeting called for
the purpose of voting on this Plan or such agreement.

SECTION 3.  This Plan shall continue in effect for a period of more than one
year after it takes effect only so long as such continuance is specifically
approved at least annually in the manner provided for approval of this Plan in
Section 2.

SECTION 4.  MassMutual shall provide to the Trustees of the Trust, and the
Trustees shall review, at least quarterly, a written report of the amounts so
expended and the purposes for which such expenditures were made.

SECTION 5.  This Plan may be terminated at any time by vote of a majority of the
Qualified Trustees, or by vote of a majority of the outstanding Class Y shares
of the Fund.

SECTION 6.  All agreements with any person relating to implementation of this
Plan shall be in writing, and any agreement related to this Plan shall provide:

        (a) that such agreement may be terminated at any time, without payment
        of any penalty,by vote of a majority of the Qualified Trustees or by
        vote of a majority of the outstanding Class Y shares of the Fund, on not
        more than 60 days' written notice to any other party to

                                       13
<PAGE>
 
  the agreement; and

  (b) that such agreement shall terminate automatically in the event of its
      assignment.


SECTION 7.  This Plan may not be amended to increase materially the amount of
distribution expenses permitted pursuant to Sections 1 hereof without the
approval of a majority of the outstanding Class Y shares of the Fund, and all
material amendments to this Plan shall be approved in the manner provided for
approval of this Plan in Section 2.


SECTION 8.  As used in this Plan, (a) the term "Qualified Trustees" shall mean
those Trustees of the Trust who are not interested persons of the Trust, and
have no direct or indirect financial interest in the operation of this Plan or
any agreements related to it, and (b) the terms "interested person" and "vote of
a majority of the outstanding voting securities" shall have the respective
meanings specified in the Act and the rules and regulations thereunder, subject
to such exemptions as may be granted by the Securities and Exchange Commission.

SECTION 9.  A copy of the Agreement and Declaration of Trust of the Trust is on
file with the Secretary of State of The Commonwealth of Massachusetts and notice
is hereby given that this instrument is executed on behalf of the Trustees of
the Trust as Trustees and not individually, and that the obligations of or
arising out of this instrument are not binding upon any of the Trustees,
officers or shareholders individually but are binding only upon the assets and
property attributable to the Class Y shares of the Fund.

Executed as of this 26th day of November, 1997.

MASSMUTUAL INSTITUTIONAL
FUNDS, ON BEHALF OF MASSMUTUAL
INTERNATIONAL EQUITY FUND

BY:  _____________________________

MASSACHUSETTS MUTUAL LIFE
INSURANCE COMPANY

BY: _____________________________



 

                                       14

<PAGE>
 
                                                                      EXHIBIT 18

                                    FORM OF
                                    -------

                        MASSMUTUAL INSTITUTIONAL FUNDS
                        ------------------------------

                             AMENDED AND RESTATED
                             --------------------

                                RULE 18F-3 PLAN
                                ---------------

                            Adopted August 4, 1997

                                 Introduction


MassMutual Institutional Funds (the "Trust") is a Massachusetts business trust 
registered under the Investment Company Act of 1940 (the "1940 Act") as a 
diversified, open-end management investment company. Massachusetts Mutual Life 
Insurance Company (the "Adviser") is a mutual life insurance company organized 
under Massachusetts law. OppenheimerFunds Distributor, Inc. (the "Distributor") 
is a registered broker-dealer which serves as principal underwriter to the 
Trust. The Trust consists of seven separate series and expects to add up to six 
(6) additional series (the "Funds"), each of which has and will have separate 
investment objectives. Prior to the adoption of this Amended and Restated Rule 
18f-3 Plan, each Fund had four (4) classes of shares - Class 1, Class 2, Class 3
and Class 4. With the adoption of this Amended and Restated Rule 18f-3 Plan, 
each Fund will have three (3) classes of shares - Class A, Class Y and Class 4 
(redesignated and referred to now as Class S).

This plan is prepared, and is being adopted by the Board of Trustees, pursuant 
to the requirements of Rule 18f-3 (the "Rule 18f-3 Plan").

                            Description of Classes

Class A. Class A shares are marketed primarily to defined contribution plans and
defined benefit plans that qualify under section 401(a) of the Internal Revenue
Code of 1986, as amended (the "Code"), individual retirement accounts described
in Code section 408, and tax-sheltered annuity custodial accounts described in
Code section 403(b)(7). Class A shares may also be marketed to other
institutional investors such as deferred compensation plans described in Code
section 457, voluntary employees' beneficiary associations described in Code
section 501(c)(9), other non-qualified deferred compensation plans or other
institutional or sophisticated investors. Class A shares may also be offered to
present or former officers, directors, trustees and employees (and their
spouses, parents, children and siblings) of the Trust, the Adviser and its
affiliates and retirement plans established by them for their employees. Class A
shares may be offered with a front-end sales charge, as described from time to
time, in the Porspectus and/or Statement of Additional Information included in
the Trust's Registration Statement, as amended from time to time, provided that
such front-end sales charge shall not exceed 5.75%. In cases where front-end
sales charges are not imposed and Class A shares are offered at net asset value,
there may be contingent deferred sales charges applied for redemptions occurring
in the 12 month period occurring after the first purchase.

Class Y. Class Y shares are marketed primarily to non-qualified deferred 
compensation plans whereby the employer sponsor enters into an administrative 
services agreement with the Adviser, or an affiliate of the Adviser, with 
respect to administration of the plan. Class Y shares may also be marketed to 
defined contribution plans and defined benefit plans under Code section 401(a)
and tax-sheltered annuity plans under Code Section 403(b), in each case with
plan assets in excess of a determined amount and which enter into an
administrative services or other agreement with the Adviser, or an affiliate of
the Adviser. Class Y shares may also be marketed to other institutional
investors, including other registered investment Companies (or any series
thereof) advised by the Adviser or an affiliate of the Adviser. Class Y shares
will be offered at net asset value without a front-end or contingent deferred
sales charge.

                                                                          Page 1
<PAGE>
 
Class S. Class S shares are available only to the separate accounts of the 
Adviser and life insurance company affiliates of the Adviser ("Separate 
Accounts"). Interests in the Separate Accounts are offered only to defined 
contribution plans and defined benefit plans under Code section 401(a) and 
certain other plans in accordance with the Federal securities laws and the rules
and regulations thereunder. Class S shares are offered at net asset value 
without a front-end or contingent deferred sales charge. Class S shares were 
formerly known as Class 4 shares.

                            Servicing Arrangements

Class A. It is anticipated that Class A shares will primarily be marketed both 
through independent and affiliated broker/dealers with the assistance of 
independent intermediaries, but Class A shares also may be sold directly by 
employees of the Adviser. In addition, there may also be "direct" sales of Class
A shares by employees of the Adviser in the case of Class A shares which are 
sold to participants of qualified plans who roll their plan distributions into 
individual retirement accounts. In either case, such employees of the Adviser 
shall be registered representatives of a broker-dealer affiliate of the Adviser.

Class Y. It is anticipated that Class Y shares will be marketed primarily
through "direct" sales efforts of employees of the Adviser, but that there will
also be sales by field representatives of the Adviser. In either case, employees
of the Adviser shall be registered representatives of a broker-dealer affiliate
of the Adviser. Class Y shares may also be marketed through independent and
affiliated broker/dealers with the assistance of independent intermediaries.

Class S. Class S shares may be sold only to Separate Accounts. It is anticipated
that there will not be any "direct" sales of Class S shares by employees of the 
Adviser and sales of Separate Accounts need not be made by registered 
representatives.

                        Servicing Arrangements -- Fees

In General. Each Fund has adopted or will adopt with respect to Class A shares a
Service Plan and Agreement pursuant to Rule 12b-1 under the 1940 Act (a "Service
Plan") which will provide for payment of service fees to the Adviser (the
"Service Fee") for the rendering of personal services to Class A shareholders
and/or maintenance of Class A shareholder accounts. The Adviser will not use the
Service Fee charged to Class A within a Fund to support the distribution,
marketing or shareholder services of any other class within the Fund. A
defensive Rule 12b-1 Plan has been adopted for Class A and Class Y.

Class A. The Class A Service Plan provides that the Service Fee will be paid to
the Adviser at an annual rate not to exceed .25% of the average daily net asset
value of the Class A shares.

                                                                          Page 2
<PAGE>
 
Class Y. Class Y shares are not subject to any service fees, although the Class
does have a defensive 12b-1 Plan. Any expenses related to sales and distribution
would be borne by the Adviser and not by the Trust.

Class S. Class S shares are not subject to Rule 12b-1 fees because there are not
expected to be any distribution or service expenses attributable to Class S due 
to the nature of the investors eligible to purchase Class S shares.

                          Administrative Arrangements

The Adviser has entered into a separate Administrative and Shareholder Services 
Agreement for each Fund pursuant to which the Adviser is compensated for 
administrative and shareholder services rendered and expenses incurred by it in 
the rendering of such services and for the cost of bearing some Class expenses, 
such as Federal and state registration fees, printing and postage. Each 
Agreement anticipates that the Adviser will provide extensive services to Class 
A, modest services to Class Y and limited services to Class S. The Trust, on 
behalf of each Fund, pays the Adviser a monthly fee for the services performed 
at an annual rate of the average daily net assets of the applicable class of 
shares of the Fund within the range specified below. The administrative services
fee is an Identifiable Class Expense.

Also, as described above in the section entitled Distribution Arrangement --
Fees, Class A shares will bear a service fee which is used to compensate the 
Adviser for rendering personal services to shareholders and for expenses 
incurred by it in the rendering of such services.

                      Administrative Arrangements -- Fees

Each Class of each Fund shall bear an administrative fee as set forth in each 
Fund's Administrative and Shareholder Services Agreement. Such fees will vary 
from Class to Class and may vary from Fund to Fund. Set forth below is the range
of administrative fees paid by each Class of the existing seven funds (the 
MassMutual Prime Fund, MassMutual Short-Term Bond Fund, MassMutual Balanced 
Fund, MassMutual Value Equity Fund, MassMutual Small Cap Value Equity Fund and 
MassMutual International Equity Fund).

Class A. Class A shares will bear an annual administrative service fee not to 
exceed a range of between .56% and .59%.

Class Y. Class Y shares will bear an annual administrative service fee not to 
exceed a range of between .31% and .44%.

Class S. Class S shares will bear an annual administrative service fee not to 
exceed a range of between .08% and .10%.

                    Voting and Other Rights and Obligations

Each share of the Trust, regardless of class, will have identical voting, 
dividend, liquidation and other rights, preferences, powers, restrictions, 
limitations, qualifications, designations and terms and conditions, except that:

     (a)  each class will have a different class designation;

     (b)  each class offered in connection with a Rule 12b-1 Plan will bear the
          expense of the payments that would be made pursuant to such Rule 12b-1
          Plan;

     (c)  each class will also bear certain other expenses that are directly
          attributable only to the class (the "Identifiable Class Expenses"
          as described in more detail under "Allocation of Fund Expenses
          Identifiable Class Expenses); and

                                                                          Page 3
<PAGE>
 
        (d)  only the holders of the shares of the appropriate class involved 
        will be entitled to vote on matters pertaining to a Rule 12b-1 Plan
        relating to such class (e.g., the adoption, amendment or termination of
        a Rule 12b-1 Plan) in accordance with the requirements and procedures
        set forth in Rule 12b-1;

        (e)  each class will have separate voting rights on any matter submitted
        to shareholders in which the interest of one class differs from the
        interest of any other class; and

        (f)  each class will have different exchange privileges described 
        below.

Dividends paid by a Fund with respect to each class of shares, to the extent any
dividends are paid, will be calculated in the same manner, at the same time, on 
the same day and will be in the same amount, except that fee payments made under
the Rule 12b-1 Plans relating to a particular class of shares will be borne 
exclusively by such class and except that any Identifiable Class Expenses may be
borne by the applicable class of shares.

                          Allocation of Fund Expenses

Unattributed Expenses. All expenses of the Trust that cannot be attributed
directly to any one Fund will be allocated to each Fund based on the relative
net assets of such Fund. All expenses of a Fund that can not be allocated to any
one particular Class will be allocated to each Class based on the relative net
asset of such Class. An independent expert previously reviewed the methodology
and procedures for the proper allocation of expenses among Class 1, Class 2,
Class 3 and Class 4 shares and the expert rendered a report that demonstrated
that such methodology and procedures were adequate to ensure that such
allocations will be made in an appropriate manner, subject to the conditions and
limitations in the report (a copy of which is attached). The methodology and
procedures for the proper allocation of expenses among Class A, Class Y and
Class S shares will be the same as those reviewed by the independent expert for
the Class 1, Class 2, Class 3 and Class 4 shares.

Identifiable Class Expenses. Identifiable Class Expenses will be allocated to a 
particular class of a Fund and are limited to:

     (a)  transfer agency fees attributable to a specific class of shares;

     (b)  printing and postage expenses related to preparing and distributing
          materials such as shareholder reports, prospectuses and proxies to
          current shareholders of a specific class;

     (c)  Blue Sky registration fees incurred by a class of shares;
 
     (d)  SEC registration fees incurred by a class of shares;

     (e)  shareholder and administrative service fees payable under each Fund's 
          respective administrative service agreement; and

     (f)  any other incremental expenses subsequently identified that should be
          properly allocated to one class which shall be approved by the Board
          and is consistent with Rule 18f-3 and any SEC interpretations thereof.


                                                                          Page 4
<PAGE>
 
                    Waivers and Reimbursements of Expenses

The Adviser may choose to reimburse or waive the Identifiable Class Expenses of 
certain classes on a voluntary, temporary basis. The amount of such expenses 
waived or reimbursed by the Adviser may vary from class to class. In addition, 
the Adviser may waive or reimburse expenses attributable to the Trust generally
and/or expenses attributable to a Fund (with or without a waiver or 
reimbursement of Identifiable Class Expenses) but only if the same proportionate
amount of such expenses are waived or reimbursed for each class. Thus, any 
expenses attributable to the Trust generally that are waived or reimbursed would
be credited to each class of a Fund based on the relative net assets of the 
classes. Similarly, any expenses attributable to a Fund that are waived or 
reimbursed would be credited to each class of that Fund according to the 
relative net assets of the classes. The Adviser's flexibilty to waive expenses 
may be subject to tax considerations.

                            No Conversion Provision

In General. Class A, Class Y and Class S shares of the Funds do not have a 
conversion feature.

                              Exchange Provision

Class A. Shareholders of Class A shares of each Fund will generally be entitled 
to exchange those shares at net asset value for Class A shares of other Funds 
that offer Class A shares.  Shareholders of Class A shares continue to be 
subject to the Rule 12b-1 Plan fee applicable to Class A shares after the 
exchange.

Class Y. Shareholders of Class Y shares of each Fund will generally be entitled 
to exchange those shares at net asset value for Class Y shares of other Funds 
that offer Class Y shares.

Class S. Shareholders of Class S shares of each Fund will generally be entitled 
to exchange those shares at net asset value for Class S shares of other Funds 
that offer Class S shares.

                                Effective Date

This Amended and Restated Rule 18f-3 Plan shall become effective upon the first 
issuance of Class A and Class Y shares.


Approved:                                       Date:
         ----------------------------------           ---------------------
Title:   Vice President and Secretary



                                                                          Page 5

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 31
   <NAME> CORE BOND FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      400,421,776
<INVESTMENTS-AT-VALUE>                     404,065,980
<RECEIVABLES>                               13,448,117
<ASSETS-OTHER>                                   1,302
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             417,515,399
<PAYABLE-FOR-SECURITIES>                       135,859
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      316,687
<TOTAL-LIABILITIES>                            452,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   401,263,451
<SHARES-COMMON-STOCK>                           11,512
<SHARES-COMMON-PRIOR>                           11,512
<ACCUMULATED-NII-CURRENT>                   14,267,081
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (2,088,284)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     3,620,605
<NET-ASSETS>                                   123,665
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                4,275
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     999
<NET-INVESTMENT-INCOME>                          3,276
<REALIZED-GAINS-CURRENT>                          (65)
<APPREC-INCREASE-CURRENT>                        (384)
<NET-CHANGE-FROM-OPS>                            2,827
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,827
<ACCUMULATED-NII-PRIOR>                      1,845,746
<ACCUMULATED-GAINS-PRIOR>                  (1,885,881)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          848,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,043,718
<AVERAGE-NET-ASSETS>                           121,252
<PER-SHARE-NAV-BEGIN>                            10.50
<PER-SHARE-NII>                                   0.28
<PER-SHARE-GAIN-APPREC>                         (0.04)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.74
<EXPENSE-RATIO>                                   1.66
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 32
   <NAME> CORE BOND FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      400,421,776
<INVESTMENTS-AT-VALUE>                     404,065,980
<RECEIVABLES>                               13,448,117
<ASSETS-OTHER>                                   1,302
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             417,515,399
<PAYABLE-FOR-SECURITIES>                       135,859
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      316,687
<TOTAL-LIABILITIES>                            452,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   401,263,451
<SHARES-COMMON-STOCK>                           11,631
<SHARES-COMMON-PRIOR>                           11,631
<ACCUMULATED-NII-CURRENT>                   14,267,081
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     (2,088,284)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     3,620,605
<NET-ASSETS>                                   125,495
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                4,333
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     677
<NET-INVESTMENT-INCOME>                          3,656
<REALIZED-GAINS-CURRENT>                          (66)
<APPREC-INCREASE-CURRENT>                        (388)
<NET-CHANGE-FROM-OPS>                            3,202
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           3,202
<ACCUMULATED-NII-PRIOR>                      1,845,746
<ACCUMULATED-GAINS-PRIOR>                   (1,885,881)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          848,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,043,718
<AVERAGE-NET-ASSETS>                           122,878
<PER-SHARE-NAV-BEGIN>                            10.51
<PER-SHARE-NII>                                   0.31
<PER-SHARE-GAIN-APPREC>                          (0.03)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.79
<EXPENSE-RATIO>                                   1.11
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        



</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 33
   <NAME> CORE BOND FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      400,421,776
<INVESTMENTS-AT-VALUE>                     404,065,980
<RECEIVABLES>                               13,448,117
<ASSETS-OTHER>                                   1,302
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             417,515,399
<PAYABLE-FOR-SECURITIES>                       135,859
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      316,687
<TOTAL-LIABILITIES>                            452,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   401,263,451
<SHARES-COMMON-STOCK>                           11,699
<SHARES-COMMON-PRIOR>                           11,699
<ACCUMULATED-NII-CURRENT>                   14,267,081
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (2,088,284)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     3,620,605
<NET-ASSETS>                                   126,549
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                4,365
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     468
<NET-INVESTMENT-INCOME>                          3,897
<REALIZED-GAINS-CURRENT>                          (67)
<APPREC-INCREASE-CURRENT>                        (388)
<NET-CHANGE-FROM-OPS>                            3,442
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           3,442
<ACCUMULATED-NII-PRIOR>                      1,845,746
<ACCUMULATED-GAINS-PRIOR>                  (1,885,881)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          848,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,043,718
<AVERAGE-NET-ASSETS>                           123,801
<PER-SHARE-NAV-BEGIN>                            10.52
<PER-SHARE-NII>                                   0.33
<PER-SHARE-GAIN-APPREC>                         (0.03)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.82
<EXPENSE-RATIO>                                   0.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 34
   <NAME> CORE BOND FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      400,421,776
<INVESTMENTS-AT-VALUE>                     404,065,980
<RECEIVABLES>                               13,448,117
<ASSETS-OTHER>                                   1,302
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             417,515,399
<PAYABLE-FOR-SECURITIES>                       135,859
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      316,687
<TOTAL-LIABILITIES>                            452,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   401,263,451
<SHARES-COMMON-STOCK>                       38,753,822
<SHARES-COMMON-PRIOR>                       34,141,922
<ACCUMULATED-NII-CURRENT>                   14,267,081
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (2,088,284)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     3,620,605
<NET-ASSETS>                               416,687,144
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           13,402,719
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 992,213
<NET-INVESTMENT-INCOME>                     12,410,506
<REALIZED-GAINS-CURRENT>                     (202,205)
<APPREC-INCREASE-CURRENT>                  (1,086,558)
<NET-CHANGE-FROM-OPS>                       11,121,743
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      9,449,800
<NUMBER-OF-SHARES-REDEEMED>                  4,837,900
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      59,988,205
<ACCUMULATED-NII-PRIOR>                      1,845,746
<ACCUMULATED-GAINS-PRIOR>                  (1,885,881)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          848,056
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,043,718
<AVERAGE-NET-ASSETS>                       379,669,294
<PER-SHARE-NAV-BEGIN>                            10.45
<PER-SHARE-NII>                                   0.34
<PER-SHARE-GAIN-APPREC>                         (0.04)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.75
<EXPENSE-RATIO>                                   0.53
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 51
   <NAME> VALUE EQUITY FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                    1,932,556,830
<INVESTMENTS-AT-VALUE>                   2,945,167,605
<RECEIVABLES>                               22,562,796
<ASSETS-OTHER>                                     925
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,967,731,326
<PAYABLE-FOR-SECURITIES>                    25,412,280
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,714,944
<TOTAL-LIABILITIES>                         28,127,224
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,797,583,622
<SHARES-COMMON-STOCK>                           10,640
<SHARES-COMMON-PRIOR>                           10,640
<ACCUMULATED-NII-CURRENT>                   26,785,147
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    103,624,558  
<OVERDISTRIBUTION-GAINS>                             0  
<ACCUM-APPREC-OR-DEPREC>                 1,012,610,775  
<NET-ASSETS>                                   178,268  
<DIVIDEND-INCOME>                                2,038  
<INTEREST-INCOME>                                    0  
<OTHER-INCOME>                                       0  
<EXPENSES-NET>                                   1,349  
<NET-INVESTMENT-INCOME>                            689  
<REALIZED-GAINS-CURRENT>                         5,471  
<APPREC-INCREASE-CURRENT>                       18,502  
<NET-CHANGE-FROM-OPS>                           24,661   
<EQUALIZATION>                                       0  
<DISTRIBUTIONS-OF-INCOME>                            0  
<DISTRIBUTIONS-OF-GAINS>                             0  
<DISTRIBUTIONS-OTHER>                                0  
<NUMBER-OF-SHARES-SOLD>                              0  
<NUMBER-OF-SHARES-REDEEMED>                          0  
<SHARES-REINVESTED>                                  0  
<NET-CHANGE-IN-ASSETS>                          24,661   
<ACCUMULATED-NII-PRIOR>                        410,862  
<ACCUMULATED-GAINS-PRIOR>                   14,178,355  
<OVERDISTRIB-NII-PRIOR>                              0  
<OVERDIST-NET-GAINS-PRIOR>                           0  
<GROSS-ADVISORY-FEES>                        5,958,697  
<INTEREST-EXPENSE>                                   0  
<GROSS-EXPENSE>                              7,312,891  
<AVERAGE-NET-ASSETS>                           163,489  
<PER-SHARE-NAV-BEGIN>                            14.44  
<PER-SHARE-NII>                                   0.06  
<PER-SHARE-GAIN-APPREC>                           2.25  
<PER-SHARE-DIVIDEND>                              0.00  
<PER-SHARE-DISTRIBUTIONS>                         0.00  
<RETURNS-OF-CAPITAL>                              0.00  
<PER-SHARE-NAV-END>                              16.75  
<EXPENSE-RATIO>                                   1.66  
<AVG-DEBT-OUTSTANDING>                               0  
<AVG-DEBT-PER-SHARE>                              0.00  
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 52
   <NAME> VALUE EQUITY FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                    1,932,556,830
<INVESTMENTS-AT-VALUE>                   2,945,167,605
<RECEIVABLES>                               22,562,796
<ASSETS-OTHER>                                     925
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,967,731,326
<PAYABLE-FOR-SECURITIES>                    25,412,280
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,714,944
<TOTAL-LIABILITIES>                         28,127,224
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,797,583,622
<SHARES-COMMON-STOCK>                           10,740
<SHARES-COMMON-PRIOR>                           10,740
<ACCUMULATED-NII-CURRENT>                   26,785,147
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    103,624,558
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,012,610,775
<NET-ASSETS>                                   180,894
<DIVIDEND-INCOME>                                2,066
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     914
<NET-INVESTMENT-INCOME>                          1,152
<REALIZED-GAINS-CURRENT>                         5,543
<APPREC-INCREASE-CURRENT>                       18,752 
<NET-CHANGE-FROM-OPS>                           25,448
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          25,448
<ACCUMULATED-NII-PRIOR>                        410,862
<ACCUMULATED-GAINS-PRIOR>                   14,178,355 
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        5,958,697
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              7,312,891
<AVERAGE-NET-ASSETS>                           165,673
<PER-SHARE-NAV-BEGIN>                            14.47
<PER-SHARE-NII>                                   0.11
<PER-SHARE-GAIN-APPREC>                           2.26 
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              16.84
<EXPENSE-RATIO>                                   1.11
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 53
   <NAME> VALUE EQUITY FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                    1,932,556,830
<INVESTMENTS-AT-VALUE>                   2,945,167,605
<RECEIVABLES>                               22,562,796
<ASSETS-OTHER>                                     925
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,967,731,326
<PAYABLE-FOR-SECURITIES>                    25,412,280
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,714,944
<TOTAL-LIABILITIES>                         28,127,224
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,797,583,622
<SHARES-COMMON-STOCK>                           10,793
<SHARES-COMMON-PRIOR>                           10,793
<ACCUMULATED-NII-CURRENT>                   26,785,147
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    103,624,558
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,012,610,775
<NET-ASSETS>                                   182,261
<DIVIDEND-INCOME>                                2,079
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     633
<NET-INVESTMENT-INCOME>                          1,446
<REALIZED-GAINS-CURRENT>                         5,582
<APPREC-INCREASE-CURRENT>                       18,882
<NET-CHANGE-FROM-OPS>                           25,910
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          25,910
<ACCUMULATED-NII-PRIOR>                        410,862
<ACCUMULATED-GAINS-PRIOR>                   14,178,355
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        5,958,697
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              7,312,891
<AVERAGE-NET-ASSETS>                           166,782
<PER-SHARE-NAV-BEGIN>                            14.49
<PER-SHARE-NII>                                   0.13
<PER-SHARE-GAIN-APPREC>                           2.27
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              16.89
<EXPENSE-RATIO>                                   0.77
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 54
   <NAME> VALUE EQUITY FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                    1,932,556,830
<INVESTMENTS-AT-VALUE>                   2,945,167,605
<RECEIVABLES>                               22,562,796
<ASSETS-OTHER>                                     925
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,967,731,326
<PAYABLE-FOR-SECURITIES>                    25,412,280
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,714,944
<TOTAL-LIABILITIES>                         28,127,224
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,797,583,622
<SHARES-COMMON-STOCK>                      174,174,339
<SHARES-COMMON-PRIOR>                      171,928,663
<ACCUMULATED-NII-CURRENT>                   26,785,147
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    103,624,558
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,012,610,775
<NET-ASSETS>                             2,939,062,679
<DIVIDEND-INCOME>                           33,289,978
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               6,918,980
<NET-INVESTMENT-INCOME>                     26,370,998
<REALIZED-GAINS-CURRENT>                    89,429,607
<APPREC-INCREASE-CURRENT>                  300,696,713
<NET-CHANGE-FROM-OPS>                      416,497,318
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     22,591,959
<NUMBER-OF-SHARES-REDEEMED>                 20,346,283
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     453,319,848
<ACCUMULATED-NII-PRIOR>                        410,862
<ACCUMULATED-GAINS-PRIOR>                   14,178,355
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        5,958,697
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              7,312,891
<AVERAGE-NET-ASSETS>                     2,669,761,273
<PER-SHARE-NAV-BEGIN>                            14.46
<PER-SHARE-NII>                                   0.15
<PER-SHARE-GAIN-APPREC>                           2.26
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              16.87
<EXPENSE-RATIO>                                   0.52
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 11
   <NAME> PRIME FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      244,588,726
<INVESTMENTS-AT-VALUE>                     244,596,563
<RECEIVABLES>                                1,938,518
<ASSETS-OTHER>                                   2,640
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             246,537,721
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,583,158
<TOTAL-LIABILITIES>                          1,583,158
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   238,247,351
<SHARES-COMMON-STOCK>                              727
<SHARES-COMMON-PRIOR>                              727
<ACCUMULATED-NII-CURRENT>                    6,710,299
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        (10,924)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         7,837
<NET-ASSETS>                                   111,959
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                3,139
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     912
<NET-INVESTMENT-INCOME>                          2,227
<REALIZED-GAINS-CURRENT>                            (2)
<APPREC-INCREASE-CURRENT>                           10
<NET-CHANGE-FROM-OPS>                            2,235
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,235
<ACCUMULATED-NII-PRIOR>                         80,676
<ACCUMULATED-GAINS-PRIOR>                       (7,151)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          576,162
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                706,077
<AVERAGE-NET-ASSETS>                           110,811
<PER-SHARE-NAV-BEGIN>                           151.03
<PER-SHARE-NII>                                   3.06
<PER-SHARE-GAIN-APPREC>                           0.02
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                             154.11
<EXPENSE-RATIO>                                   1.66
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 12
   <NAME> PRIME FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      244,588,726
<INVESTMENTS-AT-VALUE>                     244,596,563
<RECEIVABLES>                                1,938,518
<ASSETS-OTHER>                                   2,640
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             246,537,721
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,583,158
<TOTAL-LIABILITIES>                          1,583,158
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   238,247,351
<SHARES-COMMON-STOCK>                              734
<SHARES-COMMON-PRIOR>                              734
<ACCUMULATED-NII-CURRENT>                    6,710,299
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (10,924)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         7,837
<NET-ASSETS>                                   113,610
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                3,181
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     618
<NET-INVESTMENT-INCOME>                          2,563
<REALIZED-GAINS-CURRENT>                           (2)
<APPREC-INCREASE-CURRENT>                           9 
<NET-CHANGE-FROM-OPS>                            2,571
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,571
<ACCUMULATED-NII-PRIOR>                         80,676
<ACCUMULATED-GAINS-PRIOR>                      (7,151)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          576,162
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                706,077
<AVERAGE-NET-ASSETS>                           112,291
<PER-SHARE-NAV-BEGIN>                           151.23
<PER-SHARE-NII>                                   3.49
<PER-SHARE-GAIN-APPREC>                           0.01
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                             154.73
<EXPENSE-RATIO>                                   1.11
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 13
   <NAME> PRIME FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      244,588,726
<INVESTMENTS-AT-VALUE>                     244,596,563
<RECEIVABLES>                                1,938,518
<ASSETS-OTHER>                                   2,640
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             246,537,721
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,583,158 
<TOTAL-LIABILITIES>                          1,583,158
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   238,247,351
<SHARES-COMMON-STOCK>                              738
<SHARES-COMMON-PRIOR>                              738
<ACCUMULATED-NII-CURRENT>                    6,710,299
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (10,924)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         7,837
<NET-ASSETS>                                   114,477
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                3,203
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     427
<NET-INVESTMENT-INCOME>                          2,776
<REALIZED-GAINS-CURRENT>                           (2)
<APPREC-INCREASE-CURRENT>                            9
<NET-CHANGE-FROM-OPS>                            2,783
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,783
<ACCUMULATED-NII-PRIOR>                         80,676
<ACCUMULATED-GAINS-PRIOR>                      (7,151)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          576,162
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                706,077
<AVERAGE-NET-ASSETS>                           113,050
<PER-SHARE-NAV-BEGIN>                           151.29
<PER-SHARE-NII>                                   3.76
<PER-SHARE-GAIN-APPREC>                           0.01
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                             155.06
<EXPENSE-RATIO>                                   0.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 14
   <NAME> PRIME FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      244,588,726
<INVESTMENTS-AT-VALUE>                     244,596,563
<RECEIVABLES>                                1,938,518
<ASSETS-OTHER>                                   2,640
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             246,537,721
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,583,158
<TOTAL-LIABILITIES>                          1,583,158
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   238,247,351
<SHARES-COMMON-STOCK>                        1,578,771
<SHARES-COMMON-PRIOR>                        1,713,474
<ACCUMULATED-NII-CURRENT>                    6,710,299
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (10,924)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         7,837
<NET-ASSETS>                               244,614,517
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            7,296,419
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 674,361
<NET-INVESTMENT-INCOME>                      6,622,057
<REALIZED-GAINS-CURRENT>                       (3,768)
<APPREC-INCREASE-CURRENT>                       15,897
<NET-CHANGE-FROM-OPS>                        6,634,186
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      1,255,263
<NUMBER-OF-SHARES-REDEEMED>                  1,389,966
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                    (14,114,507)
<ACCUMULATED-NII-PRIOR>                         80,676
<ACCUMULATED-GAINS-PRIOR>                      (7,151)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          576,162
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                706,077
<AVERAGE-NET-ASSETS>                       257,857,991
<PER-SHARE-NAV-BEGIN>                           151.00
<PER-SHARE-NII>                                   3.93
<PER-SHARE-GAIN-APPREC>                           0.01
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                             154.94
<EXPENSE-RATIO>                                   0.53
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6

<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 61
   <NAME> SMALL CAP VALUE EQUITY FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      404,086,580
<INVESTMENTS-AT-VALUE>                     568,708,309
<RECEIVABLES>                                2,953,191
<ASSETS-OTHER>                                     839
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             571,662,339
<PAYABLE-FOR-SECURITIES>                     4,764,297
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      734,984
<TOTAL-LIABILITIES>                          5,499,281
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   372,384,505
<SHARES-COMMON-STOCK>                           10,666
<SHARES-COMMON-PRIOR>                           10,666
<ACCUMULATED-NII-CURRENT>                    2,631,716
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     26,525,108 
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   164,621,729
<NET-ASSETS>                                   164,885
<DIVIDEND-INCOME>                                1,190
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,282
<NET-INVESTMENT-INCOME>                           (93)
<REALIZED-GAINS-CURRENT>                         6,512
<APPREC-INCREASE-CURRENT>                       15,653
<NET-CHANGE-FROM-OPS>                           22,072
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          22,072
<ACCUMULATED-NII-PRIOR>                        192,363
<ACCUMULATED-GAINS-PRIOR>                    4,972,374 
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,324,751
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,574,303
<AVERAGE-NET-ASSETS>                           146,776
<PER-SHARE-NAV-BEGIN>                            13.39
<PER-SHARE-NII>                                 (0.01)
<PER-SHARE-GAIN-APPREC>                           2.08 
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              15.46
<EXPENSE-RATIO>                                   1.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 62
   <NAME> SMALL CAP VALUE EQUITY FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      404,086,580
<INVESTMENTS-AT-VALUE>                     568,708,309
<RECEIVABLES>                                2,953,191
<ASSETS-OTHER>                                     839
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             571,662,339
<PAYABLE-FOR-SECURITIES>                     4,764,297
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      734,984
<TOTAL-LIABILITIES>                          5,499,281
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   372,384,505
<SHARES-COMMON-STOCK>                           10,767
<SHARES-COMMON-PRIOR>                           10,767
<ACCUMULATED-NII-CURRENT>                    2,631,716
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     26,525,108
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   164,621,729
<NET-ASSETS>                                   167,340
<DIVIDEND-INCOME>                                1,206
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     894
<NET-INVESTMENT-INCOME>                            312
<REALIZED-GAINS-CURRENT>                         6,600
<APPREC-INCREASE-CURRENT>                       15,883
<NET-CHANGE-FROM-OPS>                           22,795
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          22,795
<ACCUMULATED-NII-PRIOR>                        192,363
<ACCUMULATED-GAINS-PRIOR>                    4,972,374
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,324,751
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,574,303
<AVERAGE-NET-ASSETS>                           148,761
<PER-SHARE-NAV-BEGIN>                            13.42
<PER-SHARE-NII>                                   0.03
<PER-SHARE-GAIN-APPREC>                           2.09
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.54
<EXPENSE-RATIO>                                   1.21
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<SERIES>
   <NUMBER> 63
   <NAME> SMALL CAP VALUE EQUITY FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      404,086,580
<INVESTMENTS-AT-VALUE>                     568,708,309
<RECEIVABLES>                                2,953,191
<ASSETS-OTHER>                                     839
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             571,662,339
<PAYABLE-FOR-SECURITIES>                     4,764,297
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      734,984
<TOTAL-LIABILITIES>                          5,499,281
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   372,384,505
<SHARES-COMMON-STOCK>                           10,837
<SHARES-COMMON-PRIOR>                           10,837
<ACCUMULATED-NII-CURRENT>                    2,631,716
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     26,525,108
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   164,621,729
<NET-ASSETS>                                   168,863
<DIVIDEND-INCOME>                                1,216
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     643
<NET-INVESTMENT-INCOME>                            573
<REALIZED-GAINS-CURRENT>                         6,654
<APPREC-INCREASE-CURRENT>                       16,027
<NET-CHANGE-FROM-OPS>                           23,254
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          23,254
<ACCUMULATED-NII-PRIOR>                        192,363
<ACCUMULATED-GAINS-PRIOR>                    4,972,374
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,324,751
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,574,303
<AVERAGE-NET-ASSETS>                           149,987
<PER-SHARE-NAV-BEGIN>                            13.44
<PER-SHARE-NII>                                   0.05
<PER-SHARE-GAIN-APPREC>                           2.09
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.58
<EXPENSE-RATIO>                                   0.86
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 64
   <NAME> SMALL CAP VALUE EQUITY FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      404,086,580
<INVESTMENTS-AT-VALUE>                     568,708,309
<RECEIVABLES>                                2,953,191
<ASSETS-OTHER>                                     839
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             571,662,339
<PAYABLE-FOR-SECURITIES>                     4,764,297
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      734,984
<TOTAL-LIABILITIES>                          5,499,281
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   372,384,505
<SHARES-COMMON-STOCK>                       36,265,588
<SHARES-COMMON-PRIOR>                       34,013,589
<ACCUMULATED-NII-CURRENT>                    2,631,716
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     26,525,108
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   164,621,729
<NET-ASSETS>                               565,661,970
<DIVIDEND-INCOME>                            3,944,374
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,505,813
<NET-INVESTMENT-INCOME>                      2,438,560
<REALIZED-GAINS-CURRENT>                    21,532,969
<APPREC-INCREASE-CURRENT>                   53,164,597
<NET-CHANGE-FROM-OPS>                       77,136,127
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      6,601,406
<NUMBER-OF-SHARES-REDEEMED>                  4,349,407
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     108,726,554
<ACCUMULATED-NII-PRIOR>                        192,363
<ACCUMULATED-GAINS-PRIOR>                    4,972,374
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,324,751
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,574,303
<AVERAGE-NET-ASSETS>                       485,274,476
<PER-SHARE-NAV-BEGIN>                            13.43
<PER-SHARE-NII>                                   0.07
<PER-SHARE-GAIN-APPREC>                           2.10
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              15.60
<EXPENSE-RATIO>                                   0.63
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 41
   <NAME> BALANCED FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      505,416,393
<INVESTMENTS-AT-VALUE>                     628,163,436
<RECEIVABLES>                                4,204,369
<ASSETS-OTHER>                                   8,223
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             632,376,028
<PAYABLE-FOR-SECURITIES>                     3,102,397
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      582,570
<TOTAL-LIABILITIES>                          3,684,967
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   483,414,936
<SHARES-COMMON-STOCK>                           10,838
<SHARES-COMMON-PRIOR>                           10,838
<ACCUMULATED-NII-CURRENT>                   10,713,433
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     11,820,496
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   122,742,196
<NET-ASSETS>                                   146,563
<DIVIDEND-INCOME>                                2,890
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,144
<NET-INVESTMENT-INCOME>                          1,746
<REALIZED-GAINS-CURRENT>                         2,333
<APPREC-INCREASE-CURRENT>                        8,663
<NET-CHANGE-FROM-OPS>                           12,742
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          12,742
<ACCUMULATED-NII-PRIOR>                         26,102
<ACCUMULATED-GAINS-PRIOR>                    1,920,993
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,309,860
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,606,234
<AVERAGE-NET-ASSETS>                           138,873
<PER-SHARE-NAV-BEGIN>                            12.35
<PER-SHARE-NII>                                   0.16
<PER-SHARE-GAIN-APPREC>                           1.01
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              13.52
<EXPENSE-RATIO>                                   1.66
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        
 

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 42
   <NAME>  BALANCED FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      505,416,393
<INVESTMENTS-AT-VALUE>                     628,163,436
<RECEIVABLES>                                4,204,369
<ASSETS-OTHER>                                   8,223
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             623,376,028
<PAYABLE-FOR-SECURITIES>                     3,102,397
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      582,570
<TOTAL-LIABILITIES>                          3,684,967
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   483,414,936
<SHARES-COMMON-STOCK>                           10,948
<SHARES-COMMON-PRIOR>                           10,948
<ACCUMULATED-NII-CURRENT>                   10,713,433
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     11,820,496
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   122,742,196
<NET-ASSETS>                                   148,717
<DIVIDEND-INCOME>                                2,928
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     775
<NET-INVESTMENT-INCOME>                          2,153
<REALIZED-GAINS-CURRENT>                         2,364
<APPREC-INCREASE-CURRENT>                        8,782
<NET-CHANGE-FROM-OPS>                           13,299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          13,299
<ACCUMULATED-NII-PRIOR>                         26,102
<ACCUMULATED-GAINS-PRIOR>                    1,920,993 
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,309,860
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,606,234
<AVERAGE-NET-ASSETS>                           140,722
<PER-SHARE-NAV-BEGIN>                            12.37
<PER-SHARE-NII>                                   0.20
<PER-SHARE-GAIN-APPREC>                           1.01 
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              13.58
<EXPENSE-RATIO>                                   1.11
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 43
   <NAME> BALANCED FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      505,416,393
<INVESTMENTS-AT-VALUE>                     628,163,436
<RECEIVABLES>                                4,204,369
<ASSETS-OTHER>                                   8,223
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             632,376,028
<PAYABLE-FOR-SECURITIES>                     3,102,397
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      582,570
<TOTAL-LIABILITIES>                          3,684,967
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   483,414,936
<SHARES-COMMON-STOCK>                           10,994
<SHARES-COMMON-PRIOR>                           10,994
<ACCUMULATED-NII-CURRENT>                   10,713,433
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     11,820,496
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   122,742,196
<NET-ASSETS>                                   149,854
<DIVIDEND-INCOME>                                2,948
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     536
<NET-INVESTMENT-INCOME>                          2,412
<REALIZED-GAINS-CURRENT>                         2,381
<APPREC-INCREASE-CURRENT>                        8,844
<NET-CHANGE-FROM-OPS>                           13,636
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          13,636
<ACCUMULATED-NII-PRIOR>                         26,102
<ACCUMULATED-GAINS-PRIOR>                    1,920,993
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,309,860
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,606,234
<AVERAGE-NET-ASSETS>                           141,676
<PER-SHARE-NAV-BEGIN>                            12.39
<PER-SHARE-NII>                                   0.22
<PER-SHARE-GAIN-APPREC>                           1.02
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              13.63
<EXPENSE-RATIO>                                   0.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 44
   <NAME> BALANCED FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      505,416,393
<INVESTMENTS-AT-VALUE>                     628,163,436 
<RECEIVABLES>                                4,204,369
<ASSETS-OTHER>                                   8,223
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             632,376,028
<PAYABLE-FOR-SECURITIES>                     3,102,397
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      582,570
<TOTAL-LIABILITIES>                          3,684,967
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   483,414,936
<SHARES-COMMON-STOCK>                       46,209,722
<SHARES-COMMON-PRIOR>                       45,632,444
<ACCUMULATED-NII-CURRENT>                   10,713,433
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     11,820,496
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   122,742,196
<NET-ASSETS>                               628,245,927
<DIVIDEND-INCOME>                           12,209,805
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,528,784
<NET-INVESTMENT-INCOME>                     10,681,021
<REALIZED-GAINS-CURRENT>                     9,892,425
<APPREC-INCREASE-CURRENT>                   36,622,959
<NET-CHANGE-FROM-OPS>                       57,196,405
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      8,196,028
<NUMBER-OF-SHARES-REDEEMED>                  7,618,750
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      64,965,536
<ACCUMULATED-NII-PRIOR>                         26,102
<ACCUMULATED-GAINS-PRIOR>                    1,920,993
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,309,860
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,606,234
<AVERAGE-NET-ASSETS>                       586,563,229
<PER-SHARE-NAV-BEGIN>                            12.34
<PER-SHARE-NII>                                   0.23
<PER-SHARE-GAIN-APPREC>                           1.03 
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              13.60
<EXPENSE-RATIO>                                   0.53
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 71
   <NAME> INTENATIONAL EQUITY FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      424,095,948
<INVESTMENTS-AT-VALUE>                     523,233,075
<RECEIVABLES>                               17,098,234
<ASSETS-OTHER>                               3,821,648
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             544,152,957
<PAYABLE-FOR-SECURITIES>                    24,152,987
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    3,826,107
<TOTAL-LIABILITIES>                         27,979,094 
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   413,449,144
<SHARES-COMMON-STOCK>                           10,176
<SHARES-COMMON-PRIOR>                           10,176
<ACCUMULATED-NII-CURRENT>                    2,786,109
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      3,725,014
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    96,213,596
<NET-ASSETS>                                   130,571
<DIVIDEND-INCOME>                                1,323
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,324
<NET-INVESTMENT-INCOME>                            (1)
<REALIZED-GAINS-CURRENT>                         4,273
<APPREC-INCREASE-CURRENT>                       13,602
<NET-CHANGE-FROM-OPS>                           17,874
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          17,890
<ACCUMULATED-NII-PRIOR>                        113,978
<ACCUMULATED-GAINS-PRIOR>                 (12,355,482)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,804,870 
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,274,676
<AVERAGE-NET-ASSETS>                           120,385
<PER-SHARE-NAV-BEGIN>                            11.07
<PER-SHARE-NII>                                   0.00
<PER-SHARE-GAIN-APPREC>                           1.76
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.83
<EXPENSE-RATIO>                                   2.17
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 72
   <NAME> INTERNATIONAL EQUITY FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      424,095,948
<INVESTMENTS-AT-VALUE>                     523,233,075
<RECEIVABLES>                               17,098,234
<ASSETS-OTHER>                               3,821,648
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             544,152,957
<PAYABLE-FOR-SECURITIES>                    24,152,987
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    3,826,107
<TOTAL-LIABILITIES>                         27,979,094
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   413,449,144
<SHARES-COMMON-STOCK>                           10,281
<SHARES-COMMON-PRIOR>                           10,281
<ACCUMULATED-NII-CURRENT>                    2,786,109
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      3,725,014
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    96,213,596
<NET-ASSETS>                                   132,483
<DIVIDEND-INCOME>                                1,341
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   1,001
<NET-INVESTMENT-INCOME>                            340
<REALIZED-GAINS-CURRENT>                         4,332
<APPREC-INCREASE-CURRENT>                       13,782
<NET-CHANGE-FROM-OPS>                           18,455
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          18,464
<ACCUMULATED-NII-PRIOR>                        113,978
<ACCUMULATED-GAINS-PRIOR>                  (12,355,482)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,804,870
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,274,676
<AVERAGE-NET-ASSETS>                           121,983
<PER-SHARE-NAV-BEGIN>                            11.09
<PER-SHARE-NII>                                   0.03
<PER-SHARE-GAIN-APPREC>                           1.77
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.89
<EXPENSE-RATIO>                                   1.62
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 73
   <NAME> INTERNATIONAL EQUITY FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      424,095,948
<INVESTMENTS-AT-VALUE>                     523,233,075
<RECEIVABLES>                               17,098,234
<ASSETS-OTHER>                               3,821,648
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             544,152,957
<PAYABLE-FOR-SECURITIES>                    24,152,987
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    3,826,107
<TOTAL-LIABILITIES>                         27,979,094
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   413,449,144
<SHARES-COMMON-STOCK>                           10,315
<SHARES-COMMON-PRIOR>                           10,315
<ACCUMULATED-NII-CURRENT>                    2,786,109
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      3,725,014
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    96,213,596
<NET-ASSETS>                                   133,169
<DIVIDEND-INCOME>                                1,348
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     850
<NET-INVESTMENT-INCOME>                            497 
<REALIZED-GAINS-CURRENT>                         4,353 
<APPREC-INCREASE-CURRENT>                       13,845 
<NET-CHANGE-FROM-OPS>                           18,696 
<EQUALIZATION>                                       0 
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          18,701
<ACCUMULATED-NII-PRIOR>                        113,978
<ACCUMULATED-GAINS-PRIOR>                 (12,355,482)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,804,870
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,274,676
<AVERAGE-NET-ASSETS>                           122,540
<PER-SHARE-NAV-BEGIN>                            11.10
<PER-SHARE-NII>                                   0.05
<PER-SHARE-GAIN-APPREC>                           1.76 
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.91
<EXPENSE-RATIO>                                   1.37
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 74
   <NAME> INTERNATIONAL EQUITY FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      424,095,948
<INVESTMENTS-AT-VALUE>                     523,233,075
<RECEIVABLES>                               17,098,234 
<ASSETS-OTHER>                               3,821,648
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             544,152,957
<PAYABLE-FOR-SECURITIES>                    24,152,987
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    3,826,107
<TOTAL-LIABILITIES>                         27,979,094
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   413,449,144
<SHARES-COMMON-STOCK>                       39,835,590
<SHARES-COMMON-PRIOR>                       32,070,618
<ACCUMULATED-NII-CURRENT>                    2,786,109
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      3,725,014
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    96,213,596
<NET-ASSETS>                               515,777,640
<DIVIDEND-INCOME>                            4,892,042
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,220,747
<NET-INVESTMENT-INCOME>                      2,671,295
<REALIZED-GAINS-CURRENT>                    16,067,537
<APPREC-INCREASE-CURRENT>                   48,269,631
<NET-CHANGE-FROM-OPS>                       67,008,463
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     12,137,572
<NUMBER-OF-SHARES-REDEEMED>                  4,372,600
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     159,466,996
<ACCUMULATED-NII-PRIOR>                        113,978
<ACCUMULATED-GAINS-PRIOR>                  (12,355,482)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,804,870
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,274,676
<AVERAGE-NET-ASSETS>                       427,829,745
<PER-SHARE-NAV-BEGIN>                            11.11
<PER-SHARE-NII>                                   0.07
<PER-SHARE-GAIN-APPREC>                           1.77
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              12.95
<EXPENSE-RATIO>                                   1.02
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED
JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 21
   <NAME> SHORT TERM BOND FUND, CLASS 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      164,941,091
<INVESTMENTS-AT-VALUE>                     165,183,286
<RECEIVABLES>                                7,481,776
<ASSETS-OTHER>                                     426
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             172,665,488
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      242,546
<TOTAL-LIABILITIES>                            242,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   167,618,985
<SHARES-COMMON-STOCK>                           11,415
<SHARES-COMMON-PRIOR>                           11,415
<ACCUMULATED-NII-CURRENT>                    4,939,839
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (378,077)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       242,195
<NET-ASSETS>                                   118,259
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                3,998
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     958
<NET-INVESTMENT-INCOME>                          3,039
<REALIZED-GAINS-CURRENT>                          (62)
<APPREC-INCREASE-CURRENT>                        (582)
<NET-CHANGE-FROM-OPS>                            2,396
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,396
<ACCUMULATED-NII-PRIOR>                         18,783
<ACCUMULATED-GAINS-PRIOR>                    (295,200)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          346,373
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                428,049
<AVERAGE-NET-ASSETS>                           116,502
<PER-SHARE-NAV-BEGIN>                            10.15
<PER-SHARE-NII>                                   0.27
<PER-SHARE-GAIN-APPREC>                         (0.06)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.36
<EXPENSE-RATIO>                                   1.66
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 22
   <NAME> SHORT TERM BOND FUND, CLASS 2
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      164,941,091
<INVESTMENTS-AT-VALUE>                     165,183,286
<RECEIVABLES>                                7,481,776
<ASSETS-OTHER>                                     426
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             172,665,488
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      242,546
<TOTAL-LIABILITIES>                            242,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   167,618,985
<SHARES-COMMON-STOCK>                           11,544
<SHARES-COMMON-PRIOR>                           11,544
<ACCUMULATED-NII-CURRENT>                    4,939,839
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (378,077)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       242,195
<NET-ASSETS>                                   120,003
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                4,051
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     649
<NET-INVESTMENT-INCOME>                          3,402
<REALIZED-GAINS-CURRENT>                          (63)
<APPREC-INCREASE-CURRENT>                        (586)
<NET-CHANGE-FROM-OPS>                            2,753
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,753
<ACCUMULATED-NII-PRIOR>                         18,783
<ACCUMULATED-GAINS-PRIOR>                    (295,200)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          346,373
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                428,049
<AVERAGE-NET-ASSETS>                           118,057
<PER-SHARE-NAV-BEGIN>                            10.16
<PER-SHARE-NII>                                   0.29
<PER-SHARE-GAIN-APPREC>                         (0.05)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.40
<EXPENSE-RATIO>                                   1.11
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 23
   <NAME> SHORT TERM BOND FUND, CLASS 3
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      164,941,091
<INVESTMENTS-AT-VALUE>                     165,183,286
<RECEIVABLES>                                7,481,776
<ASSETS-OTHER>                                     426
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             172,665,488
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      242,546
<TOTAL-LIABILITIES>                            242,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   167,618,985
<SHARES-COMMON-STOCK>                           11,599
<SHARES-COMMON-PRIOR>                           11,599
<ACCUMULATED-NII-CURRENT>                    4,939,839
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (378,077)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       242,195
<NET-ASSETS>                                   120,979
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                4,081
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     449
<NET-INVESTMENT-INCOME>                          3,632
<REALIZED-GAINS-CURRENT>                           (63)
<APPREC-INCREASE-CURRENT>                         (590)
<NET-CHANGE-FROM-OPS>                            2,978
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                           2,978
<ACCUMULATED-NII-PRIOR>                         18,783
<ACCUMULATED-GAINS-PRIOR>                     (295,200)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          346,373
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                428,049
<AVERAGE-NET-ASSETS>                           118,914
<PER-SHARE-NAV-BEGIN>                            10.17
<PER-SHARE-NII>                                   0.31
<PER-SHARE-GAIN-APPREC>                          (0.05)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.43
<EXPENSE-RATIO>                                   0.76
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MASSMUTUAL INSTITUTIONAL FUNDS, INC. FORM N-SAR FOR THE PERIOD ENDED JUNE 30,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
   <NUMBER> 24
   <NAME> SHORT TERM BOND FUND, CLASS 4
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<INVESTMENTS-AT-COST>                      164,941,091
<INVESTMENTS-AT-VALUE>                     165,183,286
<RECEIVABLES>                                7,481,776
<ASSETS-OTHER>                                     426
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             172,665,488
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      242,546
<TOTAL-LIABILITIES>                            242,546
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   167,618,985
<SHARES-COMMON-STOCK>                       16,587,139
<SHARES-COMMON-PRIOR>                       14,365,202
<ACCUMULATED-NII-CURRENT>                    4,939,839
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (378,077)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       242,195
<NET-ASSETS>                               172,063,701
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            5,318,729
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 407,746
<NET-INVESTMENT-INCOME>                      4,910,983
<REALIZED-GAINS-CURRENT>                      (82,690)
<APPREC-INCREASE-CURRENT>                    (773,776)
<NET-CHANGE-FROM-OPS>                        4,054,518
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      4,745,250
<NUMBER-OF-SHARES-REDEEMED>                  2,523,313
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      26,881,406
<ACCUMULATED-NII-PRIOR>                         18,783
<ACCUMULATED-GAINS-PRIOR>                    (295,200)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          346,373
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                428,049
<AVERAGE-NET-ASSETS>                       154,865,935
<PER-SHARE-NAV-BEGIN>                            10.11
<PER-SHARE-NII>                                   0.32
<PER-SHARE-GAIN-APPREC>                         (0.06)
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.37
<EXPENSE-RATIO>                                   0.53
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>


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