MML SERIES INVESTMENT FUND
485BPOS, 1997-10-22
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<PAGE>
                                                            
                                                       Rule 485(b)
                                                       Registration No.  2-39334
                                                       File No. 811-2224     

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D. C. 20549

                                   FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933                   [X]
    
     Pre-Effective Amendment No.  _______                                 [ ]
     Post-Effective Amendment No.   37                                    [X]
                                  -------                              
     
                                    and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940           [X]
    
     Amendment No.  22                                                    [X]
                   ----                                              
     
                          MML SERIES INVESTMENT FUND
                          --------------------------
                (Exact Name of Registrant 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
                                                           --------------
                                        
                    Name and Address of Agent for Service:
                    --------------------------------------
                             Stephen L. Kuhn, Esq.
                         Vice President and Secretary
                          MML Series Investment Fund
                               1295 State Street
                             Springfield, MA 01111
    
Approximate Date of Proposed Public Offering:  October 22, 1997     

It is proposed that this filing will become effective (check appropriate line)
    
     [X]  immediately upon filing pursuant to paragraph (b)     
     [ ]  on [date] pursuant to paragraph (b)
     [ ]  60 days after filing pursuant to paragraph (a)(1)
     [ ]  on [date] pursuant to paragraph (a)(1) of rule 485
     [ ]  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.

                       STATEMENT PURSUANT TO RULE 24F-2

Registrant has registered an indefinite number or amount of its shares under the
Securities Act of 1933 pursuant to Rule 24f-2 under the Investment Company Act
of 1940. The Registrant will file a Rule 24f-2 Notice with respect to
Registrant's fiscal year ended December 31, 1996 on or about February 28, 1997.

The Index to Exhibits is located at Page 1 of  Part C (Item 24(b)).
<PAGE>
 
TO: THE SECURITIES AND EXCHANGE COMMISSION
    
Registrant submits this Post-Effective Amendment No. 37 to its Registration
Statement No. 2-39334 under the Securities Act of 1933 and this Amendment No. 22
to its Registration Statement No. 811-2224 under the Investment Company Act of
1940. This Post-Effective Amendment relates solely to the MML Equity Index Fund.
No information relating to any other series of Registrant is amended or
superseded hereby.     
<PAGE>
 
                          MML SERIES INVESTMENT FUND

                 CROSS-REFERENCE SHEET: MML EQUITY INDEX FUND
                 ---------------------------------------------

ITEM NO. OF FORM N1-A               PROSPECTUS LOCATION OR CAPTION
- ----------------------              ------------------------------

PART A
- ------

1                                   Prospectus Cover Page
    
2                                   Prospectus Supplement     

3(a) and (b)                        Not Applicable

3(c)                                Investment Performance

3(d)                                Not Applicable

4(a), (b) and (c)                   General Information; MML Equity Index Fund;
                                    Investment Considerations and Risks;
                                    Fundamental  Investment Restrictions;
                                    Appendix

5(a)                                Management of MML Trust

5(b), (d), (e), (f) and (g)         The Advisers; Back Cover Page of Prospectus

5(c)                                Not Applicable

5A                                  Not Applicable

6(a) and (b)                        General Information; Capital Shares

6(c) and (d)                        Not Applicable

6(e)                                Capital Shares

6(f)                                Dividends and Capital Gains Distributions

6(g)                                Tax Status; Dividends and Capital Gains
                                    Distributions

6(h)                                Not Applicable

7                                   General Information; Sale and Redemption of
                                    Shares

7(a)                                Not Applicable
<PAGE>
 
7(b)                                Net Asset Value

7(c)-(g)                            Not Applicable

8(a)                                Sale and Redemption of Shares

8(b)-(d)                            Not Applicable

9                                   Not Applicable

ITEM NO. OF FORM N-1A               STATEMENT OF ADDITIONAL
- ----------------------              -----------------------
                                    INFORMATION LOCATION OR CAPTION
                                    -------------------------------

PART B
- ------

10(a) and (b)                       Cover Page

11                                  Table of Contents

12                                  General Information

13(a)                               Investment Objective and Management Policies

13(b)                               Investment Restrictions

13(c)                               Investment Objective and Management Policies

13(d)                               Portfolio Transactions

14(a)-(c)                           Management of MML Trust

15(a)-(b)                           Control Persons and Principal Holders of
                                    Securities

15(c)                               Management of MML Trust

16(a), (b), (c), (e), (h), (i)      Management of MML Trust; Investment
                                    Management and Other Services; Independent 
                                    Auditors

16(d), (g)                          Not Applicable

17(a), (c)                          Portfolio Transactions

17(b), (d) and (e)                  Not Applicable

18(a)                               Capital Shares
<PAGE>
 
18(b)                               Not Applicable

19(a) and (b)                       Purchase, Redemption and Pricing of
                                    Securities Being Offered
                                    
19(c)                               Not Applicable

20                                  Certain Tax and Accounting Information

21                                  Not Applicable

22                                  Investment Performance
    
23                                  Financial Statements     

PART C
- ------

Information to be included in Part C is set forth under the appropriate item so
numbered, in part C of this Registration Statement.
<PAGE>
     
                         MASSMUTUAL EQUITY INDEX FUND

                   SUPPLEMENT DATED OCTOBER 22, 1997, TO THE

                          PROSPECTUS DATED MAY 1, 1997

The Prospectus is changed as follows:

1. The second sentence of the fourth paragraph of the cover page of the
   Prospectus is replaced with the following:

     Certain additional information about MML Trust and the Fund that a
     prospective investor ought to know before investing is contained in a
     Statement of Additional Information dated October 22, 1997, which has been
     filed with the Securities and Exchange Commission and is incorporated by
     reference.

2. The following section is hereby added after the Table of Contents.

     FINANCIAL HIGHLIGHTS

     The financial highlights set forth below are unaudited and should be read
     in conjunction with the financial statements and notes thereto, which are
     contained in the Statement of Additional Information. The Statement of
     Additional Information may be obtained without charge by writing to the
     Trust's Secretary.

     MML Equity Index Fund

     FINANCIAL HIGHLIGHTS

     Selected per share data for a series share outstanding throughout the
     period.

<TABLE>
<CAPTION>
                                                                                          PERIOD
                                                                                          ENDED
                                                                                      AUGUST 31, 1997*
                                                                                        (UNAUDITED)
                                                                                         ---------
     <S>                                                                              <C>
     Net asset value:
       Beginning of period......................................................          $ 10.000
                                                                                          --------
     Income from investment operations:
     Net investment income......................................................               .05
     Net realized and unrealized gain on investments............................              1.21
                                                                                          --------
     Total from investment operations...........................................              1.26
                                                                                          --------
     Net asset value:
       End of period............................................................          $  11.26
                                                                                          ========

     Total return***............................................................             12.60%
     Net assets (in millions): End of period....................................          $  22.54
     Ratio of operating expenses to average net assets..........................              0.21%**
     Ratio of net investment income to average net assets.......................              0.45%**
     Portfolio turnover rate....................................................                 0%
</TABLE>

     *   The Fund commenced operations on May 1, 1997.

     **  Percentages represent results for the period and are not annualized.

     *** Total return information shown in the Financial Highlights table does
     not reflect expenses that apply at the separate account level or to related
     insurance products. Inclusion of these charges would reduce the total
     return figure for the period shown.

3. The outside back cover page of the Prospectus is amended by deleting the
   reference to MML Bay State Variable Life Separate Account I.




October 22, 1997      
<PAGE>
                                                               
                                  PROSPECTUS               
                                                                
                               Dated May 1, 1997        
                                                        
                             MML EQUITY INDEX FUND
                               1295 State Street
                          Springfield, Massachusetts
                                (413) 788-8411

MML Series Investment Fund ("MML Trust") is a no-load, open-end, management
investment company having five separate series of shares, each of which has
different investment objectives and is designed to meet different investment
needs. This Prospectus relates only to one of the series, MML Equity Index Fund
(the "Fund").

MML Equity Index Fund - The Fund is a non-diversified series of MML Trust. The
Fund's investment objective is to provide investment results that correspond to
the price and yield performance of publicly traded common stocks in the
aggregate, as represented by the Standard & Poor's 500 Composite Stock Price
Index (the "Index"). As such, the Fund will invest in common stocks that
comprise the Index. While the Fund intends to invest in every stock of the
Index, there may be circumstances when the fund is not invested in every such
stock. The Fund is also permitted to invest in Standard & Poor's Depositary
Receipts ("SPDRs"). See "Appendix - Investment Techniques". In anticipation of
taking a market position, the Fund is also permitted to purchase and sell stock
index futures. The Fund is neither sponsored by nor affiliated with Standard &
Poor's, a division of The McGraw-Hill Companies, Inc.

For further information about the Fund's investment objective and policies, see
"MML EQUITY INDEX FUND" on page 3. There is no assurance that the investment
objective of the Fund will be realized.

This Prospectus sets forth concisely the information about MML Trust and the
Fund that a prospective investor ought to know before investing. Certain
additional information about MML Trust and the Fund is contained in a Statement
of Additional Information dated May 1, 1997, which has been filed with the
Securities and Exchange Commission and is incorporated by reference. This
additional information is available upon request and without charge. To obtain
such information, please contact the Secretary, MML Series Investment Fund, 1295
State Street, Springfield, Massachusetts 01111.

This Prospectus may only be used to offer or sell shares of the Fund described
in this Prospectus. This Prospectus should be retained for future reference for
information about MML Trust and the Fund.

                           ------------------------

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.

                           ------------------------
<PAGE>
 
Table of Contents

                                                                    Page
                                                                    ----     
General Information................................................    3
MML Equity Index Fund..............................................    3
Investment Considerations and Risks................................    4
Fundamental Investment Restrictions................................    5
The Advisers.......................................................    5
Capital Shares.....................................................    6
Net Asset Value....................................................    7
Sale and Redemption of Shares......................................    7
Tax Status.........................................................    7
Dividends and Capital Gains Distributions..........................    7
Investment Performance.............................................    7
Management of MML Trust............................................    8
Appendix...........................................................  A-1

                                       2
<PAGE>
 
I. General Information

MML Equity Index Fund (the "Fund") is one of five separate series of shares of
MML Series Investment Fund ("MML Trust"), a no-load, open-end, management
investment company. The Fund is a non-diversified series of MML Trust. MML Trust
was organized as a business trust under the laws of The Commonwealth of
Massachusetts pursuant to an Agreement and Declaration of Trust dated December
19, 1984, as amended from time to time (the "Declaration of Trust"). MML Trust
was established by Massachusetts Mutual Life Insurance Company ("MassMutual")
for the purpose of providing a vehicle for the investment of assets of various
separate investment accounts established by MassMutual and its life insurance
company subsidiaries, including MML Bay State Life Insurance Company. Shares of
the Fund are offered solely to separate investment accounts established by
MassMutual and its life insurance company subsidiaries.

MassMutual is responsible for providing all investment advisory, management, and
administrative services needed by the Fund pursuant to an investment management
agreement with MML Trust, on behalf of the Fund. MassMutual has entered into an
investment sub-advisory agreement with Mellon Equity Associates ("Mellon
Equity"), which provides that Mellon Equity will serve as the Fund's investment
sub-adviser, providing day-to-day management of the Fund's investments. Both
MassMutual and Mellon Equity are registered with the Securities and Exchange
Commission as investment advisers under the Investment Advisers Act of 1940, as
amended. (MassMutual and Mellon Equity are referred to hereafter collectively as
the "Advisers".) For further information, see "The Advisers" on page 5. 

II. MML Equity Index Fund 

Investment Objective

The Fund's investment objective is to provide investment results that correspond
to the price and yield performance of publicly traded common stocks in the
aggregate, as represented by the Standard & Poor's 500 Composite Stock Price
Index/1/ (the "Index").

This investment objective of the Fund is a fundamental policy and may not be
changed without the vote of a majority of the Fund's outstanding voting shares
(as used in this Prospectus, a majority of the outstanding voting shares of the
Fund means the lesser of (1) 67% of the Fund's outstanding shares present at a
meeting of the shareholders if more than 50% of the outstanding shares are
present in person or by proxy, or (2) more than 50% of the Fund's outstanding
shares). As explained below, there is no assurance that the investment objective
of the Fund will be realized.

Management Policies

The Fund attempts to duplicate the investment results of the Index, which is
composed of 500 selected common stocks, most of which are listed on the New York
Stock Exchange. Standard & Poor's ("S&P") has an Index Committee which is
responsible for the overall management of the Index. The Index Committee looks
at a company's market value, industry group classification, capitalization,
trading activity, financial and operating condition before making a decision to
include it in the Index. New companies are added to the Index only when there is
a vacancy. Companies are removed from the Index for four major reasons: merger
with (or acquisition by) another company, financial operating failure, lack of
representation of leading American industries, or restructuring. The Fund
attempts to be fully invested at all times in the stocks that comprise the
Index, Standard and Poor's Depositary Receipts ("SPDRs") and stock index futures
as described below and, in any event, in the normal course of management, at
least 80% of the Fund's net assets will be so invested. Furthermore, while the
Fund does intend to invest in every stock included in the Index, there may be
circumstances, such as during the Fund's early stages when it may have
relatively small assets, when the Fund is not invested in every such stock.
Inclusion of a stock in the Index in no way implies an opinion by S&P as to its
attractiveness as an investment. The Fund uses the Index as the standard
performance comparison because it represents approximately 70% of the total
market value of all United States common stocks and is well known to investors.
An investment in the Fund involves risks similar to those of investing in common
stocks.

The weightings of stocks in the Index are based on each stock's relative total
market capitalization; that is, its market price per share times the number of
shares outstanding. Because of this weighting, as of November 30, 1996,
approximately 47.4% of the Index was composed of the 50 largest companies.
Mellon Equity generally selects stocks for the Fund's portfolio in the order of
their weightings in the Index beginning with the heaviest weighted stocks. With
respect to the Fund's assets invested in the stocks in the Index, the percentage
of such assets invested in each stock is approximately the same as the
percentage it represents in the Index.

No attempt is made to manage the portfolio in the traditional sense using
economic, financial and market analysis. The Fund is managed using a computer
program to determine which stocks are to be purchased or sold to replicate the
Index to the extent feasible. From time to time, administrative adjustments may
be made in the Fund's portfolio because of changes in the composition of the
Index, but such changes should be infrequent.

The Fund believes that the indexing approach described above is an effective
method of substantially duplicating Index performance. It is a reasonable
expectation that there will be a close correlation between the Fund's
performance and that of the Index in both rising and falling markets. The Fund
will

- -----------------------
/1/ "Standard & Poor's", "S&P", "Standard & Poor's 500", "S&P 500" and "500" are
trademarks of The McGraw-Hill Companies and have been licensed for use by the 
Fund. The Fund is not sponsored, endorsed, sold or promoted by Standard & 
Poor's, a division of the McGraw-Hill Companies ("S&P"), or The McGraw-Hill 
Companies, Inc. S&P makes no representation regarding the advisability of 
investing in the Fund.

                                       3
<PAGE>
 
attempt to achieve a correlation between the performance of its portfolio and
that of the Index of at least 0.95, without taking into account expenses. A
correlation of 1.00 would indicate perfect correlation, which would be achieved
when the Fund's net asset value, including the value of its dividends and
capital gains distributions, increases or decreases in exact proportion to
changes in the Index. The Fund's ability to correlate its performance with the
Index, however, may be affected by, among other things, changes in securities
markets, the manner in which the Index is calculated by S&P and the timing of
purchases and redemptions of Fund shares. In the future, MML Trust's Board,
subject to the approval of shareholders of the Fund, may select another index if
such a standard of comparison is deemed to be more representative of the
performance of common stocks.

The Fund's ability to duplicate the performance of the Index also depends to
some extent on the size of the Fund's portfolio and the size of cash flows into
and out of the Fund. Investment changes to accommodate these cash flows are made
to maintain the similarity of the Fund's portfolio to the Index to the maximum
practicable extent.

From time to time to increase its income, the Fund may lend securities from its
portfolio. See "Appendix - Investment Techniques". When the Fund has cash
reserves, the Fund may invest in money market instruments consisting of U.S.
Government securities, time deposits, certificates of deposit, bankers'
acceptances, high-grade commercial paper, and repurchase agreements. See the
Statement of Additional Information for a description of these instruments.

The Fund may invest in SPDRs, an investment intended to provide investment
results that generally correspond to the price and yield performance of the
Index, when, in the opinion of Mellon Equity, available cash balances would not
otherwise allow the Fund to invest such cash balances in a manner which
adequately corresponds to the Index. SPDRs represent an interest in the
portfolio of S&P 500 stocks held by a unit investment trust, and SPDR holders
are entitled to receive dividends which accrue to stocks held by the unit
investment trust, less trust expenses. The Fund also may purchase stock index
futures in anticipation of taking a market position when, in the opinion of
Mellon Equity, available cash balances do not permit an economically efficient
trade in the cash market. The Fund also may sell stock index futures to
terminate existing positions it may have as a result of its purchases of stock
index futures. Investments in stock index futures typically require greater
available cash balances than do investments in SPDRs. See also "Investment
Considerations and Risks" and "Appendix - Investment Techniques" below, and
"Investment Objective and Management Policies" in the Statement of Additional
Information.

The Fund is not sponsored, endorsed, sold or promoted by S&P. S&P makes no
representation or warranty, express or implied, to the shareholders of the Fund
or any member of the public regarding the advisability of investing in
securities generally or in the Fund particularly or the ability of the Index to
track general stock market performance. S&P's only relationship to the Fund is
the licensing of certain trademarks and trade names of S&P and of the Index,
which is determined, composed and calculated by S&P without regard to the Fund.
S&P has no obligation to take the needs of the Fund or the shareholders of the
Fund into consideration in determining, composing or calculating the Index. S&P
is not responsible for and has not participated in the determination of the
prices and amount of the Fund or the timing of the issuance or sale of the Fund
or in the determination or calculation of the equation by which the Fund is to
be converted into cash. S&P has no obligation or liability in connection with
the administration, marketing or trading of the Fund.

S&P DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF THE S&P 500 INDEX
OR ANY DATA INCLUDED THEREIN AND S&P SHALL HAVE NO LIABILITY FOR ANY ERRORS,
OMISSIONS, OR INTERRUPTIONS THEREIN. S&P MAKES NO WARRANTY, EXPRESS OR IMPLIED,
AS TO RESULTS TO BE OBTAINED BY THE FUND, SHAREHOLDERS OF THE FUND, OR ANY OTHER
PERSON OR ENTITY FROM THE USE OF THE S&P 500 INDEX OR ANY DATA INCLUDED THEREIN.
S&P MAKES NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIMS ALL
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH
RESPECT TO THE S&P 500 INDEX OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY
OF THE FOREGOING, IN NO EVENT SHALL S&P HAVE ANY LIABILITY FOR ANY SPECIAL,
PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF
NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES. 

III. Investment Considerations and Risks

General - The Fund's net asset value per share should be expected to fluctuate.
Investors should consider the Fund as a part of an overall investment program
and should invest only if they are willing to undertake the risks involved. See
"Investment Objective and Management Policies -- Management Policies" in the
Statement of Additional Information for a further discussion of certain risks.

Equity Securities - Equity securities fluctuate in value, often based on factors
unrelated to the value of the issuer of the securities, and such fluctuations
can be pronounced. Changes in the value of the Fund's investments will result in
changes in the value of its shares and thus the Fund's total return to
investors.

Foreign Securities - Since the stocks of some foreign issuers are included in
the Index, the Fund's portfolio may contain securities of such foreign issuers
which may subject the Fund to additional investment risks with respect to those
securities that are different in some respects from those incurred by a fund
which invests only in securities of domestic issuers. Such risks include
possible adverse political and economic developments, seizure or nationalization
of foreign deposits or adoption of governmental restrictions which might
adversely affect the value of the securities of a foreign issuer to investors
located outside the country of the issuer, whether from currency blockage or
otherwise.

Use of Derivatives - The Fund may invest, to a limited extent, in derivatives
("Derivatives"). These are financial instruments 

                                       4
<PAGE>
 
which derive their performance, at least in part, from the performance of an
underlying asset or index. The Derivatives the Fund may use include stock index
futures. While Derivatives can be used effectively in furtherance of the Fund's
investment objective, under certain market conditions, they can increase the
volatility of the Fund's net asset value, can decrease the liquidity of the
Fund's portfolio and make more difficult the accurate pricing of the Fund's
portfolio. See "Appendix -Investment Techniques - Use of Derivatives" and
"Investment Objective and Management Policies - Management Policies -
Derivatives" in the Statement of Additional Information.

Non-Diversified Status - The classification of the Fund as "non-diversified"
means that the proportion of the Fund's assets that may be invested in the
securities of a single issuer is not limited by the Investment Company Act of
1940, as amended (the "1940 Act"). A "diversified" investment company is
required by the 1940 Act generally, with respect to 75% of its total assets, to
invest not more than 5% of such assets in the securities of a single issuer.
Since a relatively high percentage of the Fund's assets may be invested in the
securities of a limited number of issuers, some of which may be within the same
economic sector, the Fund's portfolio may be more sensitive to the changes in
market value of a single issuer or industry. However, to meet Federal tax
requirements, at the close of each quarter the Fund may not have more than 25%
of its total assets invested in any one issuer and, with respect to 50% of total
assets, not more than 5% of its total assets invested in any one issuer.
These limitations do not apply to U.S. Government securities.

IV. Fundamental Investment Restrictions

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

V. The Advisers

MassMutual

MassMutual serves as investment manager of the Fund pursuant to an investment
management agreement executed by MassMutual and MML Trust, on behalf of the Fund
(the "Investment Management Agreement"). MassMutual is a registered investment
adviser and 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 business in all states of the United States, the District of Columbia,
Puerto Rico and certain Provinces of Canada. At December 31, 1996, MassMutual,
together with its subsidiaries, had total assets of approximately $55.7 billion
and in excess of $130.8 billion in assets under management.

Under the Investment Management Agreement, MassMutual 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 MML Trust. The
Investment Management Agreement provides that MassMutual will perform all
administrative functions relating to the Fund and will bear all expenses of the
Fund except: (1) taxes and corporate fees payable to government agencies; (2)
brokerage commissions and other capital items payable in connection with the
purchase or sale of Fund investments; (3) interest on account of any borrowings
by the Fund; (4) fees and expenses of Trustees of MML Trust who are not
interested persons, as defined in the 1940 Act, of the Advisers or MML Trust;
(5) fees and expenses of MML Trust's Advisory Board Members; (6) fees of the
Fund's independent certified public accountants; and (7) any required trademark
licensing fees.

For providing the services described above, MassMutual is paid a quarterly fee
at the annual rate of .40% of the first $100,000,000 of the average daily net
asset value of the Fund; .38% of the next $150,000,000 and .36% of any net
assets thereafter. MassMutual has agreed to bear expenses of the Fund (other
than the management fee, interest, taxes, any required trademark licensing fees,
custodial fees (which will be paid by Mellon Equity as described below),
brokerage commissions and extraordinary expenses) in excess of .11% of average
daily net asset value through April 30, 1998. The imposition of the Fund's
management fee, as well as other operating expenses, will have the effect of
reducing shareholders' return and will affect the ability of the Fund to track
the Index exactly.


The Investment Management Agreement between MassMutual and the Fund
automatically terminates: (1) unless its continuance is specifically approved at
least annually by the affirmative vote of a majority of the Board of Trustees of
MML Trust, which affirmative vote shall include a majority of the members of the
Board who are not interested persons (as defined in the 1940 Act) of the
Advisers or of MML Trust, or (2) upon its assignment. Under the terms of the
Investment Management Agreement, the Fund recognizes MassMutual's control of the
initials "MML" and the Fund agrees that its right to use these initials is
non-exclusive and can be terminated by MassMutual at any time. Under the
agreement, 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 acts as the transfer agent and the dividend paying agent. First
Data Investors Services Group, Inc. provides fund accounting services for the
Fund.

Mellon Equity

Pursuant to an investment sub-advisory agreement (the "Sub-Advisory Agreement")
with MassMutual, Mellon Equity, located at 500 Grant Street, Pittsburgh,
Pennsylvania 15258, serves as the Fund's investment sub-adviser, providing
day-to-day management of the Fund's investments. Mellon Equity, a registered
investment adviser formed in 1987, became a Pennsylvania Business Trust as of
December 31, 1991 and is an indirect wholly-owned subsidiary of Mellon Bank
Corporation. As of December 31, 1996, Mellon Equity and its employees managed
approximately $11 billion and served as the investment adviser or sub-adviser of
9 other investment companies.

Mellon Bank Corporation is a publicly owned multibank holding company
incorporated under Pennsylvania law in 1971 and registered under the Federal
Bank Holding Company Act 

                                       5
<PAGE>
 
of 1956, as amended. Mellon Bank Corporation provides a comprehensive range of
financial products and services in domestic and selected international markets.
Through its subsidiaries, Mellon Bank Corporation managed more than $226 billion
in assets as of September 30, 1996, including approximately $65 billion in
proprietary mutual fund assets.

The Sub-Advisory Agreement provides that MassMutual will pay Mellon Equity a
monthly fee equal at an annual rate of .09% of the first $100,000,000 of the
average daily net asset value of the Fund; .07% of the next $150,000,000; and
 .05% on any assets thereafter. Pursuant to the Sub-Advisory Agreement, Mellon
Equity has agreed that so long as it is the sole investment sub-adviser to the
Fund, that Mellon Equity shall pay the fees for the custody services for the
Fund, which will be provided by Boston Safe Deposit and Trust Company (which is
an indirect subsidiary of Mellon Bank Corporation).

The Sub-Advisory Agreement between MassMutual and Mellon Equity automatically
terminates: (1) unless its continuance is specifically approved at least
annually by the affirmative vote of a majority of the Board of Trustees of MML
Trust, which affirmative vote shall include a majority of the members of the
Board who are not interested persons (as defined in the 1940 Act) of the
Advisers or of MML Trust; (2) upon its assignment; or (3) upon the termination
of the Investment Management Agreement. Under the terms of the Sub-Advisory
Agreement, Mellon Equity'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.

The Sub-Advisory Agreement acknowledges that when purchase or sale of securities
of the same issuer is suitable for the Fund and one or more other investment
companies or accounts managed by Mellon Equity which attempt to track an equity
index, such purchases or sales may and 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 or 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. Mellon Equity believes that the ability of the Fund to participate
in larger volume transactions will, in most cases, produce better execution for
the Fund. In some cases, however, this procedure could have a detrimental effect
on the price and amount of a security available to the Fund or the price at
which a security may be sold. It is the opinion of MML Trust's management that
such execution advantage and the desirability of retaining Mellon Equity as
index manager of the Fund outweigh the disadvantages, if any, which might result
from this procedure.

In allocating brokerage transactions for the Fund, Mellon Equity seeks to obtain
the best execution of orders at the most favorable net price. Subject to this
determination, Mellon Equity may consider, among other things, the sale of
shares of the Fund as a factor in the selection of broker-dealers to execute
portfolio transactions for the Fund. Mellon Equity will not consider the
provision of brokerage or research services (as such term is defined in Section
28(e) of the Securities Exchange Act of 1934, as amended) in allocating
brokerage transactions for the Fund. See "Portfolio Transactions" in the
Statement of Additional Information. 

VI. Capital Shares

MML Trust is a "series" company which is authorized to issue an unlimited number
of shares in separate series of the same class. To date, shares of five separate
series have been authorized, one of which constitutes the interests in the Fund.
Under MML Trust's Declaration of Trust, however, the Board of Trustees is
authorized to create new series without the necessity of a vote of shareholders
of MML Trust. Each share of a particular series represents an equal
proportionate interest in that series with each other share of the same series,
none having priority or preference over another. Each series shall be preferred
over all other series in respect of the assets allocated to that series. Each
share of a particular series is entitled to a pro rata share of any
distributions declared by that series and, in the event of liquidation, a pro
rata share of the net assets of that series remaining after satisfaction of
outstanding liabilities. When issued, shares are fully paid and nonassessable
and have no preemptive, conversion or subscription rights.

MML Trust is not required to hold annual meetings of shareholders. Special
meetings may be called for purposes such as electing Trustees, voting on
management agreements, and with respect to such additional matters relating to
MML Trust as may be required by MML Trust's Declaration of Trust and the 1940
Act. Shareholders holding 10% of the shares of MML Trust may call a meeting to
be held to consider removal of Trustees. On any matter submitted to
shareholders, shares of each series entitle their holder to one vote per share
(with proportionate voting for fractional shares), irrespective of the relative
net asset values of the series' shares. On any matters submitted to a vote of
shareholders, all shares of MML Trust then entitled to vote shall be voted by
individual series, except that (i) when required by the 1940 Act, shares shall
be voted in the aggregate and not by individual series, and (ii) when the
Trustees have determined that any matter affects only the interests of one or
more series, then only shareholders of such series shall be entitled to vote
thereon. Shareholder inquiries should be made by contacting the Secretary, MML
Series Investment Fund, 1295 State Street, Springfield, Massachusetts 01111.

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

                                       6
<PAGE>
 
is limited to circumstances in which the disclaimer is inoperative and MML Trust
itself would be unable to meet its obligations.

VII. Net Asset Value

The net asset value of the Fund's shares is determined once daily as of the
normal close of trading on the New York Stock Exchange (presently 4:00 p.m.) on
each day on which the Exchange is open for trading.

Generally, the Fund values portfolio securities on the basis of market value.
For example, equity securities, including those traded on national securities
exchanges, the NASDAQ national market system, or over-the-counter securities not
so listed, are valued by one or more pricing services, as authorized by the
Board of Trustees of MML Trust. Normally, the values are based upon the last
reported sale price of the security. Debt obligations with less than one year
but more than sixty days to maturity are valued on the basis of their market
value. Debt obligations having a maturity of sixty days or less are generally
valued at amortized cost when the Board of Trustees of MML Trust believes that
amortized cost approximates market value. Futures contracts are valued based on
market prices unless such prices do not reflect the fair value of the contract,
in which case they will be valued by or under the direction of the Board of
Trustees of MML Trust. In all other cases, assets will be 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. 

VIII. Sale and Redemption of Shares

The shares of the Fund are sold at their net asset value as next computed after
receipt of the purchase order, without the addition of any selling commission or
"sales load."

The Fund redeems its shares at their net asset value as next computed after
receipt of the request for redemption. The redemption price for shares of the
Fund may be more or less than the shareholder's cost. No fee is charged on
redemption.

Redemption payments will be made within seven days after receipt of the written
request therefor by MML Trust, except that the right of redemption may be
suspended or payments postponed when permitted by applicable law and
regulations. 

IX. Tax Status

It is the policy of the Fund to comply with the provisions of the Internal
Revenue Code applicable to regulated investment companies. As a result, the Fund
will not be subject to federal income tax on any net income or any capital gains
to the extent they are distributed or are deemed to have been distributed to
shareholders.

Regulations issued under Internal Revenue Code Section 817(h) require the Fund
to be adequately diversified in order for a variable life insurance contract
funded by the Fund to receive favorable tax treatment as a life insurance
contract. Among other requirements, the regulations limit the Fund's investment
in a single issuer to 55% of its assets; while this requirement applies to U.S.
Government securities, each government agency or instrumentality is treated for
this purpose as a separate issuer. The Fund intends to comply with these
diversification requirements. For further information, see the Statement of
Additional Information.

Tax consequences to investors in the separate investment accounts which are
invested in the Fund are described in the prospectuses for such accounts.

X. Dividends and Capital Gains Distributions

The Fund intends to declare capital gain and ordinary income dividends and to
distribute such dividends in a manner designed to avoid a 4% excise tax on
undistributed regulated investment company income imposed by the Tax Reform Act
of 1986. Distributions, if any, are declared and paid annually. Distributions
may be taken either in cash or in additional shares of the Fund at net asset
value on the day after the record date for the distribution, at the option of
the shareholder. 

XI. Investment Performance

The Fund may from time to time advertise certain investment performance figures.
These figures are based on historical returns and are not intended to indicate
future performance.

The Fund 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 which will be 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 the Fund over a period
of time (which period will be stated in the advertisement), assuming
reinvestment of all distributions. 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. This
performance information for the Fund may also be compared to the Index.

These investment performance figures may be of limited use for comparative
purposes because they do not reflect charges imposed by the separate investment
accounts invested in the Fund which, if included, would decrease the performance
figures. For more information about calculation of the investment performance of
the Fund, see the Statement of Additional Information.

                                       7
<PAGE>
 
XII. Management of MML Trust

The affairs of MML Trust are generally supervised by its Board of Trustees and
officers. As stated previously, MassMutual acts as investment manager of the
Fund and Mellon Equity is the sub-adviser to the Fund. In those capacities
MassMutual and Mellon Equity are part of the management of MML Trust. For more
information concerning the management of MML Trust, reference should be made to
the Statement of Additional Information.

The name MML Series Investment Fund is the designation of Trustees of MML Trust
under an Agreement and Declaration of Trust dated December 19, 1984, 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 Trustees of MML Trust,
shareholders, officers, employees or agents of such Trust, but MML Trust's
property only shall be bound.

                                       8
<PAGE>
 
Appendix


Investment Techniques

Borrowing Money - The Fund is permitted to borrow money only for temporary or
emergency purposes, in an amount up to 5% of the value of its total assets
(including the amount borrowed) valued at the lesser of cost or market, less
liabilities (not including the amount borrowed) at the time the borrowing is
made.

Use of Derivatives - The Fund may invest in the types of Derivatives enumerated
under "Description of the Fund - Investment Considerations and Risks - Use of
Derivatives." These instruments and certain related risks are described more
specifically under "Investment Objective and Management Policies - Management
Policies - Derivatives" in the Statement of Additional Information.

Although the Fund will not be a commodity pool, Derivatives subject the Fund to
the rules of the Commodity Futures Trading Commission which limit the extent to
which the Fund can invest in certain derivatives. The Fund may invest in stock
index futures contracts for hedging purposes without limit. However, the Fund
may not invest in such contracts for other purposes if the sum of the amount of
initial margin deposits, other than for bona fide hedging purposes, exceeds 5%
of the liquidation value of the Fund's assets, after taking into account
unrealized gains and unrealized losses on such contracts.

Standard & Poor's Depositary Receipts ("SPDRs") - The Fund may invest in SPDRs
when, in the opinion of Mellon Equity, available cash balances would not
otherwise allow the Fund to invest such cash balances in a manner which
adequately corresponds to the Index. Investments in SPDRs typically require less
available cash balances than do investments in stock index futures.

SPDRs represent an interest in the portfolio of S&P 500 stocks held by a unit
investment trust. SPDRs trade on the American Stock Exchange and may be bought
and sold like common stock at any time during the trading day. An investment in
SPDRs is intended to provide investment results that generally correspond to the
price and yield performance of the Index.

Lending Portfolio Securities - The Fund may lend securities from its portfolio
to brokers, dealers and other financial institutions desiring to borrow
securities to complete certain transactions. The Fund continues to be entitled
to payments in amounts equal to the interest, dividends or other distributions
payable on the loaned securities which affords the Fund an opportunity to earn
interest on the amount of the loan and income on the loaned securities'
collateral. Loans of portfolio securities may not exceed 10% of the value of the
Fund's total assets, and the Fund will receive collateral consisting of cash,
U.S. Government securities or irrevocable letters of credit which will be
maintained at all times in an amount equal to at least 100% of the current
market value of the loaned securities. Such loans are terminable by the Fund at
any time upon specified notice. The Fund might experience risk of loss if the
institution with which it has engaged in a portfolio loan transaction breaches
its agreement with the Fund.

                                      A-1
<PAGE>
 
                              MML EQUITY INDEX FUND

                                1295 State Street
                        Springfield, Massachusetts 01111

                         -----------------------------

                               INVESTMENT MANAGER

                            MASSACHUSETTS MUTUAL LIFE
                                INSURANCE COMPANY

                                1295 State Street
                        Springfield, Massachusetts 01111

                             INVESTMENT SUB-ADVISER

                            MELLON EQUITY ASSOCIATES

                                500 Grant Street
                                   Suite 3700
                         Pittsburgh, Pennsylvania 15258

                             INDEPENDENT ACCOUNTANTS

                              COOPERS & LYBRAND LLP

                               2300 BayBank Tower
                        Springfield, Massachusetts 01101

                                    CUSTODIAN

                             BOSTON SAFE DEPOSIT AND
                                  TRUST COMPANY

                                One Boston Place
                           Boston, Massachusetts 02108

                         -----------------------------

                   For Use With:
                   . MML Bay State Variable Life Separate Account I
                   . MassMutual Variable Life Separate Account I


This Prospectus does not constitute an offering in any jurisdiction in which
such offering may not lawfully be made. No person is authorized to make any
representations in connection with this offering other than those contained in
this Prospectus.
<PAGE>
                                                             
                                                        Rule 485(b)
                                                        Registration No. 2-39334
                                                        File No. 811-2224     










                             MML EQUITY INDEX FUND

                      STATEMENT OF ADDITIONAL INFORMATION
                      -----------------------------------
    
THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT A PROSPECTUS. IT SHOULD BE READ

IN CONJUNCTION WITH THE PROSPECTUS OF MML EQUITY INDEX FUND DATED MAY 1, 1997,

AS AMENDED FROM TIME TO TIME (THE "PROSPECTUS"). MML EQUITY INDEX FUND IS 

A NON-DIVERSIFIED SERIES OF MML SERIES INVESTMENT FUND. THE PROSPECTUS MAY BE 

OBTAINED WITHOUT CHARGE FROM THE SECRETARY, MML SERIES INVESTMENT FUND, 1295

STATE STREET, SPRINGFIELD, MASSACHUSETTS 01111.     


                                
                            DATED OCTOBER 22, 1997     
<PAGE>
 
                               TABLE OF CONTENTS

    
GENERAL INFORMATION............................................................3

INVESTMENT OBJECTIVE AND MANAGEMENT POLICIES...................................3

INVESTMENT RESTRICTIONS........................................................7

MANAGEMENT OF MML TRUST........................................................8

CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES...........................16

INVESTMENT MANAGEMENT AND OTHER SERVICES......................................16

PORTFOLIO TRANSACTIONS........................................................17

CAPITAL SHARES................................................................19

PURCHASE, REDEMPTION AND PRICING OF SECURITIES BEING OFFERED..................19

TAX STATUS....................................................................20

CERTAIN TAX AND ACCOUNTING INFORMATION........................................22

INVESTMENT PERFORMANCE........................................................22

INDEPENDENT AUDITORS..........................................................23

COUNSEL  .....................................................................23

FINANCIAL STATEMENTS OF THE FUND (UNAUDITED).................................F-1

APPENDIX ..............................................................A-1 - A-2
     
<PAGE>
 
                           I.   GENERAL INFORMATION

MML Equity Index Fund (the "Fund") is one of five separate series of shares of
MML Series Investment Fund ("MML Trust"). MML Trust is a no-load, open-end,
management investment company that was established by Massachusetts Mutual Life
Insurance Company ("MassMutual") for the purpose of providing a vehicle for the
investment of assets of various separate investment accounts established by
MassMutual and life insurance company subsidiaries of MassMutual.

Shares of MML Trust are not offered to the general public but solely to separate
investment accounts established by MassMutual and its life insurance company
subsidiaries, including MML Bay State Life Insurance Company ("MML Bay State").
MML Trust was formed as a voluntary association of the type known as a "business
trust" organized under the laws of The Commonwealth of Massachusetts pursuant to
an Agreement and Declaration of Trust dated December 19, 1984, as amended from
time to time (the "Declaration of Trust").

MassMutual is responsible for providing all investment advisory, management, and
administrative services needed by the Fund pursuant to an investment management
agreement. MassMutual has entered into an investment sub-advisory agreement with
Mellon Equity Associates ("Mellon Equity"), which provides that Mellon Equity
will serve as the Fund's investment sub-adviser, providing day-to-day management
of the Fund's investments. Both MassMutual and Mellon Equity are registered with
the Securities and Exchange Commission (the "SEC") as investment advisers under
the Investment Advisers Act of 1940, as amended (MassMutual and Mellon Equity
are referred to hereinafter collectively as the "Advisers").

              II.   INVESTMENT OBJECTIVE AND MANAGEMENT POLICIES

The following information supplements and should be read in conjunction with the
discussion of the Fund's investment objective, techniques and policies described
in the Prospectus. The fundamental investment objective and investment
restrictions of the Fund (as described in the Prospectus and below) may not be
changed without a vote of a majority of the Fund's outstanding shares. A
"majority of the outstanding shares" of the Fund means the lesser of (1) 67% of
the Fund's outstanding shares present at a meeting of the shareholders if more
than 50% of the outstanding shares are present in person or by proxy or (2) more
than 50% of the Fund's outstanding shares. All other investment policies and
techniques of the Fund may be changed by the Board of Trustees of MML Trust
without a vote of shareholders. For example, such other policies and techniques
include investment in new types of hedging programs which may be devised in the
future, or which are presently in disuse but may become more prominent in the
future, and minor changes in investment policies which may be made in response
to changes in regulatory requirements which are reflected in the present
policies of the Fund. The Fund's investment objective is to provide investment
results that correspond to the price and yield performance of publicly traded
common stocks in the aggregate, as represented by the Standard & Poor's 500
Composite Stock Price Index (the "Index"). There is no assurance that the
investment objective of the Fund will be realized.

                                      -3-
<PAGE>
 
In managing its portfolios of investments, the Fund may purchase various
securities, investment related instruments and make use of various investment
techniques, including those described below.

Other Portfolio Securities

Money Market Instruments. The Fund may invest, in the circumstances described
- -------------------------
under "MML Equity Index Fund-Management Policies" in the Fund's Prospectus, in
the following types of money market instruments.

         U.S. Government Securities -- Securities issued or guaranteed by the
         --------------------------
U.S. Government or its agencies or instrumentalities include U.S. Treasury
securities that differ in their interest rates, maturities and times of
issuance. Some obligations issued or guaranteed by U.S. Government agencies and
instrumentalities are supported by the full faith and credit of the U.S.
Treasury; others by the right of the issuer to borrow from the Treasury; others
by discretionary authority of the U.S. Government to purchase certain
obligations from the agency or instrumentality; and others only by the credit of
the agency or instrumentality. These securities bear fixed, floating or variable
rates of interest. While the U.S. Government provides financial support for such
U.S. Government-sponsored agencies and instrumentalities, no assurance can be
given that it will always do so since it is not so obligated by law.
    
         Repurchase Agreements -- In a repurchase agreement, the Fund buys, and
         ---------------------
the seller agrees to repurchase, a security at a mutually agreed upon time and
price (usually within seven days). The repurchase agreement thereby determines
the yield during the purchaser's holding period, while the seller's obligation
to repurchase is secured by the value of the underlying security. The Fund's
custodian or sub-custodian will have custody of, and will hold in a segregated
account, securities acquired by the Fund under a repurchase agreement.
Repurchase agreements are considered by the staff of the SEC to be loans by the
Fund. In an attempt to reduce the risk of incurring a loss on a repurchase
agreement, the Fund will enter into repurchase agreements only with domestic
banks with total assets in excess of one billion dollars or primary government
securities dealers reporting to the Federal Reserve Bank of New York, with
respect to securities of the type in which the Fund may invest, and will require
that additional securities be deposited with it if the value of the securities
purchased should decrease below resale price. However, if the seller defaults,
the Fund may 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.     

         Bank Obligations -- The Fund may purchase certificates of deposit, time
         ----------------
deposits, bankers' acceptances and other short-term obligations issued by
domestic banks, foreign subsidiaries or foreign branches of domestic banks,
domestic and foreign branches of foreign banks, domestic savings and loan
associations and other banking institutions. With respect to such securities
issued by foreign subsidiaries or foreign branches of domestic banks and

                                      -4-
<PAGE>
 
domestic and foreign branches of foreign banks, the Fund may be subject to
additional investment risks that are different in some respects from those
incurred by a fund which invests only in debt obligations of U.S. domestic
issuers.

         Certificates of deposit are negotiable certificates evidencing the
obligation of a bank to repay funds deposited with it for a specified period of
time.

         Time deposits are non-negotiable deposits maintained in a banking
institution for a specified period of time (in no event longer than seven days)
at a stated interest rate.

         Bankers' acceptances are credit instruments evidencing the obligation
of a bank to pay a draft drawn on it by a customer. These instruments reflect
the obligation both of the bank and the drawer to pay the face amount of the
instruments upon maturity. The other short-term obligations may include
uninsured, direct obligations bearing fixed, floating or variable interest
rates.
    
         Commercial Paper -- Commercial paper consists of short-term, unsecured
         ----------------
promissory notes issued to finance short-term credit needs. The commercial paper
purchased by the Fund will consist only of direct obligations which, at the time
of their purchase, are; (1) rated at least Prime-1 by Moody's Investors Service,
Inc. ("Moody's") or A-1 by Standard & Poor's Ratings Group ("S&P"), a division
of The McGraw-Hill Companies, Inc.; (2) issued by companies having an
outstanding unsecured debt issue currently rated at least Aa by Moody's or at
least AA- by S&P; or (3) if unrated, determined by Mellon Equity to be of
comparable quality to those rated obligations which may be purchased by the
Fund.     

Management Policies

Lending Portfolio Securities. In connection with its securities lending
- -----------------------------
transactions, the Fund may return to the borrower or a third party which is
unaffiliated with the Fund, and which is acting as a "placing broker," a part of
the interest earned from the investment of cash collateral received for
securities loaned.
    
         The SEC currently requires that the following conditions must be met
whenever portfolio securities are loaned: (1) the Fund must receive at least
100% cash collateral from the borrower; (2) the borrower must increase such
collateral whenever the market value of the securities rises above the level of
such collateral; (3) the Fund must be able to terminate the loan at any time;
(4) the Fund must receive reasonable interest on the loan, as well as any
dividends, interest or other distributions payable on the loaned securities, and
any increase in market value; (5) the Fund may pay only reasonable custodian
fees in connection with the loan; and (6) while voting rights on the loaned
securities may pass to the borrower, the Fund's Board must terminate the loan
and regain the right to vote the securities if a material event adversely
affecting the investment occurs.     

Derivatives. The Fund may invest in Derivatives (as defined in the Prospectus)
- ------------
in anticipation of taking a market position when, in the opinion of Mellon
Equity, available cash 

                                      -5-
<PAGE>
 
balances do not permit an economically efficient trade in the cash market.
Derivatives may provide a cheaper, quicker or more specifically focused way for
the Fund to invest than "traditional" securities would.

         Derivatives can be volatile and involve various types and degrees of
risk, depending upon the characteristics of the particular Derivative and the
portfolio as a whole. Derivatives permit the Fund to increase or decrease the
level of risk, or change the character of the risk, to which its portfolio is
exposed.

         Derivatives may entail investment exposures that are greater than their
cost would suggest, meaning that a small investment in Derivatives could have a
large potential impact on the Fund's performance.

         Investments in Derivatives may lower the Fund's return or result in a
loss. The Fund also could experience losses if its Derivatives were poorly
correlated with its other investments, or if the Fund were unable to liquidate
its position because of an illiquid secondary market. The market for many
Derivatives is, or suddenly can become, illiquid. Changes in liquidity may
result in significant, rapid and unpredictable changes in the prices for
Derivatives.

Stock Index Futures. A stock index future obligates the Fund to pay or receive
- --------------------
an amount of cash equal to a fixed dollar amount specified in the futures
contract multiplied by the difference between the settlement price of the
contract on the contract's last trading day and the value of the index based on
the stock prices of the securities that comprise it at the opening of trading in
such securities on the next business day. The Fund purchases and sells futures
contracts on the stock index for which it can obtain the best price with
consideration also given to liquidity.

         Using futures in anticipation of market transactions involves certain
risks. Although the Fund intends to purchase or sell futures contracts only if
there is an active market for such contracts, no assurance can be given that a
liquid market will exist for any particular contract at any particular time. In
addition, the price of stock index futures may not correlate perfectly with the
movement in the stock index due to certain market distortions. First, all
participants in the futures market are subject to margin deposit and maintenance
requirements. Rather than meeting additional margin deposit requirements,
investors may close futures contracts through offsetting transactions which
would distort the normal relationship between the index and futures markets.
Secondly, from the point of view of speculators, the deposit requirements in the
futures market are less onerous than margin requirements in the securities
market. Therefore, increased participation by speculators in the futures market
also may cause temporary price distortions. Because of the possibility of price
distortions in the futures market and the imperfect correlation between
movements in the stock index and movements in the price of stock index futures,
the use of stock index futures may not result in a successful hedging
transaction.

                                      -6-
<PAGE>
 
         In connection with its futures transactions, the Fund may be required
to establish and maintain at its custodian bank or a registered futures
commission merchant a segregated account consisting of cash or high quality
money market instruments in an amount equal to the market value of the
underlying commodity less any amount deposited as margin.

Standard & Poor's Depositary Receipts ("SPDRs"). The Fund may invest in SPDRs
- ------------------------------------------------
when, in the opinion of Mellon Equity, available cash balances would not
otherwise allow the Fund to invest such cash balances in a manner which
adequately corresponds to the Index. Investments in SPDRs typically require less
available cash balances than do investments in stock index futures.

         SPDRs represent an interest in the portfolio of S&P 500 stocks held by
a unit investment trust. SPDRs trade on the American Stock Exchange and may be
bought and sold like common stock at any time during the trading day. An
investment in SPDRs is intended to provide investment results that generally
correspond to the price and yield performance of the Index.

                        III.   INVESTMENT RESTRICTIONS

The following is a description of certain restrictions on investments of the
Fund which may not be changed without a vote of a majority of the outstanding
shares of the Fund.

The Fund will not:

         1. Purchase securities on margin, except for such short-term credits as
         are necessary for the clearance of transactions, and except that the
         Fund may deposit and maintain funds with its custodian or brokers as
         margin in connection with its use of financial futures contracts;

         2. Purchase commodities or commodity contracts, except to the extent
         that the Fund may enter into futures contracts, as described in the
         Prospectus and this Statement of Additional Information;

         3. Borrow money or pledge, mortgage or hypothecate its assets, except
         as described in the Fund's Prospectus and the Statement of Additional
         Information and in connection with entering into futures contracts.
         Collateral arrangements with respect to initial or variation margin for
         futures contracts will not be deemed to be pledges of the Fund's
         assets.

         4. Act as an underwriter of securities of other issuers or purchase
         securities subject to restrictions on disposition under the Securities
         Act of 1933, as amended (so-called "restricted securities"). The Fund
         may not enter into repurchase agreements providing for settlement in
         more than seven days or purchase securities which are not readily
         marketable, if, in the aggregate more than 10% of the value of the
         Fund's net assets would be so invested. The Fund will not enter into
         time deposits maturing in more 

                                      -7-
<PAGE>
 
         than seven days and time deposits maturing from two business through
         seven calendar days will not exceed 10% of the Fund's total assets.

         5.  Write, purchase or sell puts, calls or combinations thereof;

         6.  Make loans to any officer, Trustee or employee of the Trust or to
         any officer, director or employee of MassMutual, or to MassMutual;

         7.  Purchase or sell real estate or interests in real estate, although
         the Fund may purchase and sell marketable securities secured by, or of
         companies investing or dealing in, real estate;

         8.  Purchase securities of investment companies except as permitted
         under the Investment Company Act of 1940, as amended (the "1940 Act").

         9.  Invest more than 25% of its assets in investments in any particular
         industry or industries (including banking), except to the extent the
         Index also is so concentrated.

         10. Make loans, except through the acquisition of bonds, debentures,
         notes, commercial paper, bankers= acceptances or other evidences of
         indebtedness in which the Fund is authorized to invest. However, the
         Fund may lend portfolio securities with respect to not more than 10% of
         the total assets of the Fund taken at current value.

         11. Issue senior securities, except to evidence borrowings permitted by
         investment restriction (3) described above.

         In addition to the investment restrictions adopted as fundamental
policies set forth above, the Fund operates with certain non-fundamental
policies which may be changed by vote of a majority of the Board members at any
time. The Fund may not sell securities short, but reserves the right to sell
securities short against the box. If a percentage restriction is adhered to at
the time of investment, a later change in percentage resulting from a change in
values or assets will not constitute a violation of such restriction.

                         IV.   MANAGEMENT OF MML TRUST

MML Trust has a Board of Trustees, a majority of whom are not "Interested
Persons" as defined in the 1940 Act. The Board of Trustees has established an
Advisory Board that has advisory functions only as to investments made by MML
Trust. Trustees of MML Trust, members of the Advisory Board, and principal
officers of MML Trust are listed below together with information on their age,
address, positions with MML Trust, principal occupations during the past five
years and other principal business affiliations.

                                      -8-
<PAGE>

     
Gary E. Wendlandt*         Chariman and Trustee of MML Trust
1295 State Street
Springfield, MA 01111
Age: 47     


         Chief Investment Officer (since 1993) and Executive Vice President,
         MassMutual; Chairman and Chief Executive Officer, MassMutual
         Institutional Funds; Chairman (since 1995), President (1983-1995) and
         Trustee, MassMutual Corporate Investors; Chairman (since 1995),
         President (1988-1995) and Trustee, MassMutual Participation Investors;
         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); President and Chief
         Executive Officer (1994-1996), Director (1992-1996), Concert Capital
         Management, Inc. (former indirect investment advisory subsidiary of
         MassMutual Holding Company); Director, Oppenheimer Acquisition
         Corporation (investment advisory holding company); Supervisory
         Director, MassMutual/Carlson CBO N.V. Inc. (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), Chief Executive Officer (1994-
         1996), Cornerstone Real Estate Advisers, Inc. (wholly-owned real estate
         investment adviser subsidiary of MassMutual Holding Trust); Director,
         Merrill Lynch Derivative Products, Inc.; Chairman (1994-1995) and
         Director (1993-1995), MML Real Estate Corporation.
    
Ronald J. Abdow                     Trustee of MML 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 1994), MassMutual Institutional
         Funds (open-end investment company).




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

                                      -9-
<PAGE>

     
Mary E. Boland                Trustee of MML Trust
67 Market Street
Springfield, MA 01102
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 (since 1994),
         MassMutual Institutional Funds (open-end investment company).
    
Richard G. Dooley*            Vice Chairman and Trustee of MML Trust
1295 State Street
Springfield, MA 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, 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 (1992-1995), Chairman (1982-1992) Concert Capital Management,
         Inc. (former indirect investment advisory subsidiary of MassMutual);
         Director (1993-1995), Luxonen S.A. (Swedish investment fund);
         Supervisory Director (1991-1995), MassMutual/Carlson CBO N.V. Inc.
         (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); Trustee
         (since 1996), MassMutual Institutional Funds (open-end investment
         company).

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

                                      -10-
<PAGE>

F. William Marshall, Jr.   Trustee of MML Trust
1441 Main Street
Springfield, MA 01102
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), MassMutual
         Institutional Funds (open-end investment company).
    
Charles J. McCarthy        Trustee of MML Trust
181 Eton Road
Longmeadow, MA 01106
Age: 74     

         Proprietor, Synectics Financial Company (venture capital activities,
         business consulting and investments); Trustee (since 1994), MassMutual
         Institutional Funds (open-end investment company).
    
John H. Southworth         Trustee of MML 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 (since 1994), MassMutual Institutional Funds (open-end
         investment company).
    
Richard H. Ayers           Advisory Board Member
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 and specialty hardware and specialty hardware
         products); Director (since 1986), Southern New England
         Telecommunications Corp.; Director, (since 1988) Perkin-Elmer Corp.;
         Trustee (since 1996), MassMutual Institutional Funds (open-end
         investment company).

                                      -11-
<PAGE>

     
David E. A. Carson                  Advisory Board Member
850 Main Street
Bridgeport, CT 06604
Age: 63     

         President and Chief Executive Office, People=s Bank; Director, United
         Illuminating Co.; Trustee, American Skandia Trust (open-end investment
         company); Trustee (since 1996), MassMutual Institutional Funds
         (open-end investment company).
    
Richard W. Greene                    Advisory Board Member
University Of Rochester
Rochester, NY 14627
Age: 62     

         Executive Vice President and Treasurer (since 1986), University of
         Rochester (private university); Trustee (since 1996), MassMutual
         Institutional Funds (open-end investment company).
    
Beverly C. L. Hamilton               Advisory Board Member
515 South Flower Street
Los Angeles, CA 90071
Age: 51     

         President, ARCO Investment Management Co.; Vice President, Atlantic
         Richfield Company; Director (since 1992), Connecticut Natural Gas;
         Director, Emerging Markets Growth Fund (closed-end investment company);
         Trustee (since 1996), MassMutual Institutional Funds (open-end
         investment company).
    
Stuart H. Reese                      President of MML Trust
1295 State Street
Springfield, MA 01111
Age:  42     
    
         Chief Executive Director (since 1997), Senior Vice President (1993-
         1997), MassMutual; President (since 1995), Executive Vice President
         (1993-1995), MassMutual Corporate Investors and MassMutual
         Participation Investors (closed-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);     

         President (since 1995), MassMutual Institutional Funds (open-end
         investment company); 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 N.V. Inc. (collateralized bond fund); 

                                      -12-
<PAGE>
 
         Director (1994-1996), 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.

Mary E. Wilson                      Senior Vice President of MML Trust
1295 State Street
Springfield, MA 01111
Age: 43

         Senior Managing Director (since 1996), Vice President and Managing
         Director (1991-1996), MassMutual; Senior Vice President (since 1996),
         HYP Management, Inc. (managing member of MassMutual High Yield Partners
         LLC) and MMHC Investment, Inc. (investor in MassMutual High Yield
         Partners LLC); Vice President, MassMutual Participation Investors; Vice
         President (since 1992), MassMutual Corporate Investors; Vice President
         (1991-1995) Oppenheimer Investment Grade Bond Fund.
    
Hamline C. Wilson                   Vice President and Chief Financial
1295 State Street                           Officer of MML 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 (since 1994), MassMutual Institutional Funds (open-end
         investment company); Vice President and Chief Financial Officer (since
         1988), MassMutual Corporate Investors and MassMutual Participation
         Investors (closed-end investment companies); Investment Officer (since
         1992), Vice President (1983-1992), Concert Capital Management, Inc.

Stephen L. Kuhn                     Vice President and Secretary
1295 State Street                           of MML Trust
Springfield, MA 01111
Age: 50
    
         Vice President and Associate General Counsel (since 1992), MassMutual;
         Vice President and Secretary, MassMutual Institutional Funds,
         MassMutual Participation Investors and MassMutual Corporate Investors;
         President, MassMutual/Carlson CBO N.V. Inc. (collateralized bond fund);
         Assistant Secretary (since 1996), Antares Leveraged Capital Corp.;
         Chief Legal Officer and Assistant Secretary (since 1995), DLB
         Acquisition Corporation (holding company for investment advisers);
         Assistant Clerk (1994-1996), Chief Legal Officer (1993-1996), and Clerk
         (1992-1994), Concert Capital Management, Inc.     

                                      -13-
<PAGE>

     
Judith A. Martini                   Vice President of MML Trust
1295 State Street
Springfield, MA 01111
Age: 49     

         Second Vice President, MassMutual.
    
Charles C. McCobb, Jr.              Vice President of MML Trust
1295 State Street
Springfield, MA 01111               
Age: 53

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

Raymond B. Woolson                  Treasurer of MML 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, MassMutual
         Participation Investors and MassMutual Institutional Funds; Vice
         President and Chief Financial Officer (since 1996), HYP Management,
         Inc. (managing member of MassMutual High Yield Partners LLC) and MMHC
         Investment Inc. (investor in Mass Mutual High Yield Partners LLC).
    
Mark Ackerman                       Comptroller of MML Trust
1295 State Street
Springfield, Ma 01111
Age: 32

         Investment Director (since 1996), Associate Director (1990-1994),
         MassMutual; Controller (since 1997) Associate Treasurer (1995-1997),
         MassMutual Participation Investors and MassMutual Corporate Investors;
         Controller (since 1997) Associate Treasurer (1995-1997), MassMutual
         Institutional Funds (open-end investment company).     

The Trustees and officers of MML Trust named above, as a group, own less than
one percent of the shares of both the Trust and the Fund.

MML Trust's Declaration of Trust provides that MML Trust will indemnify its
Trustees and officers against liabilities and expenses incurred in connection
with litigation in which they may be involved because of their offices with MML
Trust, except if it is determined in the manner specified in the Declaration of
Trust that they have not acted in good faith in the reasonable belief that their
actions were in the best interests of MML Trust or that such indemnification
would relieve any Trustee or officer of any liability to MML Trust or its
shareholders by reason of willful misfeasance, bad faith, gross negligence or
reckless disregard of his or her duties.

The following table discloses actual compensation paid to non-interested
Trustees of MML Trust and members of its Advisory Board during the 1996 fiscal
year. MML Trust paid no compensation to any of its officers. MML Trust has no
pension or retirement plan, but does have a deferred compensation plan. One
Trustee elected in 1994 to receive these benefits over a three year period,
beginning in 1994 when he became 67 years old. All of the non-

                                      -14-
<PAGE>
 
interested Trustees and the members of the Advisory Board also serve as 
Trustees of one other investment company managed by MassMutual.


                              Compensation Table
                For the Fiscal Year Completed December 31, 1996


<TABLE> 
<CAPTION> 
===============================================================================================================================

                                                                                                                  Total
                                                                        Deferred                                 Compen-
                                                                      Compensation           Estimated            sation
                                                Aggregate            Plan Benefits             Annual              from
                                                 Compen-               Accrued as             Benefits             MML
                                               sation from            Part of MML               Upon            Trust and
              Name/Position                     MML Trust                Trust                Retire-              Fund
                                                                        Expenses                ment             Complex
===============================================================================================================================
<S>                                            <C>                   <C>                     <C>                <C> 
Ronald J. Abdow, Trustee                          $16,000                 N/A                   N/A              $32,000
- -------------------------------------------------------------------------------------------------------------------------------
Mary E. Boland, Trustee                          $16,000*                 N/A                   N/A             $32,000*
- -------------------------------------------------------------------------------------------------------------------------------
William F. Marshall, Trustee                      $11,333                 N/A                   N/A              $23,333
- -------------------------------------------------------------------------------------------------------------------------------
Charles J. McCarthy,
Trustee                                           $17,000                 N/A                   N/A              $34,000
- -------------------------------------------------------------------------------------------------------------------------------
John H. Southworth, Trustee                       $17,000              $2,310               $39,345              $73,246 
- -------------------------------------------------------------------------------------------------------------------------------
Richard H. Ayers,                                  $4,000                 N/A                   N/A               $6,000
Advisory Board Member
- -------------------------------------------------------------------------------------------------------------------------------
David E.A. Carson,                                 $4,000                 N/A                   N/A               $6,000
Advisory Board Member
- -------------------------------------------------------------------------------------------------------------------------------
Richard W. Greene,                                 $4,000                 N/A                   N/A               $6,000
Advisory Board Member
- -------------------------------------------------------------------------------------------------------------------------------
Beverly C. L. Hamilton,                            $4,000                 N/A                   N/A               $6,000
Advisory Board Member
===============================================================================================================================
</TABLE> 
- ----------------
*$8,000 of this amount was paid by MassMutual.

                                      -15-
<PAGE>
 
           V.   CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES
    
MassMutual and MML Bay State are the owners of record of all of the outstanding
shares of the Fund and could be deemed to control the Fund. However, certain
owners of variable life insurance contracts that depend upon the investment
performance of the Fund will have the right to instruct MassMutual and MML Bay
State as to how shares of the Fund deemed attributable to their contracts shall
be voted. MassMutual and MML Bay State are required to vote shares attributable
to such contracts but for which no instructions were received, in proportion to
those votes for which instructions were received. MassMutual's address is 1295
State Street, Springfield, Massachusetts 01111. MML Bay State's address is 1295
State Street, Springfield, Massachusetts 01111.     

                VI.   INVESTMENT MANAGEMENT AND OTHER SERVICES

MassMutual serves as investment manager of the Fund pursuant to an investment
management agreement between MassMutual and MML Trust on behalf of the Fund (the
"Investment Management Agreement"). Under the Investment Management Agreement,
MassMutual 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 MML Trust. The Investment Management Agreement also
provides that MassMutual will perform all administrative functions relating to
the Fund and will bear all expenses of the Fund except: (1) taxes and corporate
fees payable to government agencies; (2) brokerage commissions and other capital
items payable in connection with the purchase or sale of the Fund's investments;
(3) interest on account of any borrowings by the Fund; (4) fees and expenses of
Trustees of MML Trust who are not interested persons, as defined in the
Investment Company Act of 1940, as amended (the A1940 Act@), of the Advisers or
MML Trust; (5) fees and expenses of the MML Trust's Advisory Board Members; (6)
fees of the Fund's independent certified public accountants; and (7) any
required trademark licensing fees. Under the Investment Management Agreement,
the Fund pays MassMutual a quarterly fee based on the average daily net assets
of the Fund at the annual rate of .40% of the first $100,000,000 of average
daily net asset value of the Fund; .38% of the next $150,000,000 and .36% of any
net assets thereafter.
    
The Investment Management Agreement with the Fund may be terminated by the Board
of Trustees of MML Trust, or by vote of a majority of the outstanding shares of
the Fund, or by MassMutual. Such termination requires 60 days' written notice to
be given and may be effected without the payment of any penalty. In addition,
such agreement automatically terminates: (1) unless its continuance is
specifically approved at least annually by the affirmative vote of a majority of
the Board of Trustees of MML Trust, which affirmative vote shall include a
majority of the members of the Board who are not interested persons (as defined
in the 1940 Act) of the Advisers or of MML Trust: or (2) upon its assignment.
     

                                      -16-
<PAGE>
 
The Investment Management Agreement also provides that its continuance will be
submitted to the shareholders of the Fund in the event the use of the initials
"MML" is withdrawn from the Fund by MassMutual.
    
As permitted by the Investment Management Agreement, MassMutual has entered into
an investment sub-advisory agreement with Mellon Equity (the "Sub-Advisory
Agreement") whereby Mellon Equity agrees to serve as the Fund's investment
sub-adviser, providing day-to-day management of the Fund's investments.
MassMutual is ultimately responsible for providing investment advice to the Fund
and will continue to provide administrative and non-investment advisory services
to the Fund. For the investment advisory services Mellon Equity provides with
respect to the Fund, MassMutual pays Mellon Equity a monthly fee equal to an
annual rate of .09% of the first $100,000,000 of the average daily net asset
value of the Fund; .07% of the next $150,000,000 and .05% on net any assets
thereafter. The Sub-Advisory Agreement will terminate automatically upon its
assignment or upon the termination of the Investment Management Agreement by
Mellon Equity upon 90 days' written notice or by the Fund or MassMutual upon 60
days' written notice or by liquidation of the Fund.     

As of December 31, 1991 Mellon Equity Associates became a Pennsylvania Business
Trust. Mellon Bank N.A. holds a 99% beneficial interest in Mellon Equity and
provides accounting services, record keeping and marketing services to Mellon
Equity. MMIP, Inc. holds a 1% beneficial interest in Mellon Equity. Mellon
Equity is also an indirect wholly-owned subsidiary of Mellon Bank Corporation.

Boston Safe Deposit and Trust Company, an indirect subsidiary of Mellon Bank
Corporation, acts as Custodian to the Fund. Boston Safe Deposit and Trust
Company is located at One Boston Place, Boston, Massachusetts 02108. Under its
Custody Agreement with the Fund, Boston Safe Deposit and Trust Company holds the
Fund's portfolio securities and keeps all necessary accounts and records.
Pursuant to the Sub-Advisory Agreement, the Custodian=s fees for its services to
the Fund will be paid by Mellon Equity. In order to secure payment by the
Custodian of overdrafts, the Fund has granted the Custodian a continuing
security interest in and a right of set off against assets in the Fund's account
with the Custodian.
    
First Data Investor Services Group, Inc., located at 4400 Computer Drive,
Westborough, Massachusetts 01581 provides fund accounting services for the Fund.
     
VII.   PORTFOLIO TRANSACTIONS

The Fund has no obligation to deal with any dealer or group of dealers in the
execution of transactions in portfolio securities. The Fund's Investment
Management Agreement with MassMutual provides that MassMutual will follow such
practices in placing portfolio transactions for the Fund as may from time to
time be set forth in its Prospectus or specified by the Board of Trustees of MML
Trust. Consistent with this agreement, the present policy 

                                      -17-
<PAGE>
 
of the Fund and the Advisers is that the Advisers, in placing brokerage
transactions for the Fund, are to seek best execution by responsible brokerage
firms at reasonably competitive commission rates. Mellon Equity will not
consider the provision of brokerage research services (as such term is defined
in Section 28(e) of the Securities Exchange Act of 1934, as amended) in
allocating brokerage transactions for the Fund.

By virtue of the Sub-Advisory Agreement, Mellon Equity is subject to the same
rights, obligations and procedures that apply to MassMutual pursuant to its
Investment Management Agreement with the Fund. Mellon Equity assumes general
supervision over placing orders on behalf of the Fund for the purchase or sale
of portfolio securities. Allocation of brokerage transactions, including their
frequency, is made in the best judgment of Mellon Equity. The primary
consideration is to obtain executions at the most favorable and reasonable
commission rates in relation to the benefits received. Mellon Equity attempts to
achieve these results by choosing brokers to execute transactions based on (1)
their professional capabilities (including use of capital, clearance, and
settlement procedures, and participation in underwritings and corporate finance
issues), (2) the value and quality of their services, and (3) the comparative
brokerage commission rates which they offer.

Portfolio turnover will result from changes in the composition of the Index and
from purchases and redemptions of Fund shares and the reinvestment of Fund
dividends. Portfolio turnover may vary from year to year, as well as within a
year. High turnover rates are likely to result in comparatively greater
brokerage expenses. The overall reasonableness of brokerage commissions paid is
evaluated by Mellon Equity based upon its knowledge of available information as
to the general level of commissions paid by other institutional investors for
comparable services. The allocation of orders among brokers and the commission
rates paid are reviewed periodically by the Board of Trustees of MML Trust.

Purchases and sales of equity securities on a securities exchange are effected
through brokers who charge a negotiated commission for their services. Orders
may be directed to any broker, to the extent and in the manner permitted by
applicable law. In the over-the-counter market, 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 that includes an amount of compensation to the underwriter,
generally referred to as the underwriter's concession or discount.

Except in the case of equity securities purchased by the Fund, purchases and
sales of securities usually will be principal transactions. Portfolio securities
normally will be purchased from or sold to dealers serving as market makers for
the securities at a net price. The Fund may purchase securities directly from
the issuer. Generally, money market securities are traded on a net basis and do
not involve brokerage commissions. The cost of the Fund's investment portfolio
securities transactions will consist primarily of dealer spreads and
underwriting commissions.

                                      -18-
<PAGE>
 
Purchase and sale orders of the securities held by the Fund may be combined with
those of other investment companies and accounts which attempt to track an
equity index that Mellon Equity manages, and for which it has brokerage
placement authority, in the interest of seeking the best overall terms. When
Mellon Equity determines that a particular security should be bought or sold for
the Fund and other accounts managed by Mellon Equity, Mellon Equity undertakes
to allocate those transactions among the participants equitably.

Under the 1940 Act, persons affiliated with the Fund such as MassMutual, Mellon
Equity and, in some cases, their affiliates are prohibited from dealing with the
Fund as a principal in the purchase and sale of securities unless an exemptive
order allowing such transactions is obtained from the SEC or an exemption is
otherwise available.

                             IX.   CAPITAL SHARES

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

       X.   PURCHASE, REDEMPTION AND PRICING OF SECURITIES BEING OFFERED

MML Trust is a no-load mutual fund. Fund shares are sold at their net asset
value as next computed after receipt of the purchase order, without the addition
of any selling commission or "sales load." The Fund redeems its shares at their
net asset value as next computed after receipt of the request for redemption.
The redemption price may be paid in cash or wholly or partly in kind if MML
Trust's Board of Trustees determine that such payment is advisable in the
interest of the remaining shareholders. In making such payment wholly or partly
in kind, the Fund will, as far as may be practicable, deliver securities or
property which approximate the diversification of its entire assets at the time.
No fee is charged on redemption. The redemption price may be more or less than
the shareholder's cost. Redemption payments will be paid within seven days after
receipt of the written request therefor by the Fund, except that the right of
redemption may be suspended or payments postponed when permitted by applicable
law and regulations.

                                      -19-
<PAGE>

     
The net asset value of the Fund's shares is determined once daily as of the
close of the New York Stock Exchange on each day on which the Exchange is open
for trading (currently 4:00 p.m. for normal trading). The New York Stock
Exchange currently 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. The net asset value of the Fund
share is the total net asset value of the Fund divided by the number of its
shares outstanding. The total net asset value of the Fund is determined by
computing the value of the total assets of the Fund and deducting total
liabilities, including accrued liabilities.     

The manner of determining the value of the total assets of the Fund is briefly
discussed below. 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 which are listed on a
national securities exchange, on the NASDAQ national market system, or which are
unlisted. If there is no reported sale price, the bid price of the prior trade
date will be used. Debt obligations with less than one year but more than sixty
days to maturity are valued on the basis of their market value, and debt
obligations having a maturity of sixty days or less are generally valued at
amortized cost when the Board of Trustees of MML Trust believes that amortized
cost approximates market value. In all other cases, assets (including restricted
securities) are valued at their fair value as determined in good faith by the
Board of Trustees of MML Trust, although the actual calculations may be made by
persons acting pursuant to the direction of the Board.

Futures contracts are valued based on the market price for the futures contract,
unless such price does not reflect the fair value of the contract, in which case
it will be valued by or under the direction of the Board of Trustees of MML
Trust.

                               XI.   TAX STATUS
    
It is the policy of the Fund to comply with the provisions of the Internal
Revenue Code applicable to regulated investment companies. As a result, the Fund
will not be subject to federal income tax on any distributed net income or
capital gains. To meet these requirements, the Fund must, among other things,
(a) derive at least 90% of its gross income from dividends, interest, payments
with respect to certain securities loans, gains from the sale or other
disposition of stock, securities or foreign currencies, or other income
(including but not limited to gains from options, futures or forward contracts)
derived with respect to its business of investing in such stock, securities or
currencies; (b) derive less than 30% of its gross income from the sale or the
other disposition of securities and certain other assets held less than three
months (This provision was repealed effective for tax years beginning after
August 5, 1997.); (c) 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, securities of other
regulated investment companies, and other securities limited generally with
respect to any one issuer to a value not greater than 5% of the total assets of
the Fund and to not more than 10% of the outstanding voting securities of     

                                      -20-
<PAGE>
 
such issuer, and (ii) not more than 25% of the value of its assets is invested
in the securities of any issuer (other than U.S. government securities or
securities of other regulated investment companies); and (d) distribute in or
with respect to each taxable year at least 90% of its dividend, interest and
certain other income (including, in general, net short-term capital gains) for
such year.

The Treasury Department has issued Regulations under Internal Revenue Code
Section 817(h) that pertain to diversification requirements for variable life
insurance contracts. A variable contract based upon a separate account will not
receive favorable tax treatment as a life insurance contract unless the separate
account and underlying regulated investment company investments are adequately
diversified. In determining whether a separate account is adequately
diversified, in certain circumstances the separate account can look through to
the assets of the regulated investment company in which it has invested.

The Regulations require the Fund's assets to be diversified so that no single
investment represents more than 55% of the value of the Fund's total assets, no
two investments represent more than 70% of the Fund's total assets, no three
investments represent more than 80% of the Fund's total assets and no four
investments represent more than 90% of the Fund's total assets. A "safe harbor"
is available to a separate account if it meets the diversification tests
applicable to registered investment companies and not more than 55% of its
assets constitute cash, cash items, government securities and securities of
other registered investment companies.

The applicable Regulations treat all securities of the same issuer as a single
investment. In the case of "government securities", each government agency or
instrumentality shall be treated as a separate issuer for the purpose of the
diversification test (although not for the purpose of the "safe harbor" test
described above). MML Trust intends to comply with these diversification
requirements.

The Fund intends to declare capital gain and ordinary income dividends by the
end of each calendar year and to distribute such dividends no later than January
31 of the following year to the extent necessary to avoid the 4% excise tax on
undistributed regulated investment company income enacted by the Tax Reform Act
of 1986. The 4% excise applies to the excess of the required distribution for
the calendar year over the amount treated as distributed for that year. The
required distribution equals 98% of the Fund's ordinary income for the calendar
year plus 98% of its capital gain net income for the one year period ending
October 31 (or December 31, if the Fund so elects) and any shortfall of income
or gains from the prior year not previously so distributed.

                                      -21-
<PAGE>
 
                 XII.   CERTAIN TAX AND ACCOUNTING INFORMATION
    
As previously indicated, it is the policy of the Fund to meet the requirements
of the Internal Revenue Code to qualify as a regulated investment company under
the federal tax law. One of these requirements is that less than 30% of its
gross income can be derived from gains from the sale or other disposition of
certain assets (including securities) held for or considered under Internal
Revenue Code rules to have been held for less than three months. Accordingly,
the Fund will be restricted in selling newly acquired positions, engaging in
certain option writing activities and certain hedging activities. This 30% 
requirement was repealed effective for tax years beginning after August 5, 1997.
     
Special rules (including mark-to-market, straddle and wash sale rules) exist for
determining the timing of recognition of income or loss, the character of such
income or loss, and the holding periods of certain of the Fund's assets in the
case of certain transactions involving futures contracts, forward contracts and
options. MML Trust will endeavor to make any available elections pertaining to
such transactions in a manner believed to be in the best interest of MML Trust.

                        XIII.   INVESTMENT PERFORMANCE

The Fund may advertise its total return and its holding period return. Total
return quotations will be based upon a stated period and will be computed by
finding 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 $1,000. 
                              T = average annual total return.              
                              n = number of years.                          
                              ERV = ending redeemable value at the end of the
                              stated period of a hypothetical $1,000 payment 
                              made at the beginning of the stated period.    

Holding period return will be based upon a stated period and will be computed by
dividing the ending redeemable value of a hypothetical initial payment by the
value of the initial investment (assuming reinvestment of all distributions).
Each investment performance figure will be carried to the nearest hundredth of
one percent. These investment performance figures do not reflect charges imposed
by the separate investment accounts invested in the Fund which, if included,
would decrease the performance figures.

                                      -22-
<PAGE>
 
                           XIV. INDEPENDENT AUDITORS

Coopers & Lybrand L.L.P. is the Fund's independent accountant, providing audit
and tax return preparation services and assistance and consultation in
connection with review of various SEC filings.

                                 XV. COUNSEL

Ropes & Gray, One International Place, Boston, Massachusetts 02110, as counsel
for the Trust, has rendered its opinion as to certain legal matters regarding
the due authorization and valid issuance of the shares being sold pursuant to
the Fund's Prospectus.
    
The name MML Series Investment Fund is the designation of Trustees under an
Agreement and Declaration of Trust dated December 19, 1984, 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 series of MML Trust shall be bound.     

                                      -23-
<PAGE>
    
MASSMUTUAL EQUITY INDEX FUND      
STATEMENT OF ASSETS AND LIABILITIES
AUGUST 31, 1997
(UNAUDITED)

<TABLE>

<S>                                                                 <C>
ASSETS
Investments at value (See Schedule of Investments)
 (Notes 2A, 2B, and 4)
Equities (Identified cost: $20,113,101)..........................   $22,539,055
Short-term investments (Identified cost: $4,937).................         4,937
                                                                    -----------
  TOTAL INVESTMENTS..............................................    22,543,992
Interest and dividends receivable................................        39,664
                                                                    -----------
  TOTAL ASSETS...................................................    22,583,656
                                                                    -----------
LIABILITIES
Investment management fee payable (Note 3).......................        29,505
Accrued liabilities..............................................        12,034
                                                                    -----------
  TOTAL LIABILITIES..............................................        41,539
                                                                    -----------

NET ASSETS.......................................................   $22,542,117
                                                                    ===========
NET ASSETS CONSIST OF:
Series shares (par value $.01 per share;
  an unlimited number authorized)(Note 5)........................   $     2,001
Additional paid-in capital.......................................    20,009,405
Undistributed net investment income (Notes 2C and 2D)............       100,493
Undistributed net realized loss on investments...................          (673)
Net unrealized appreciation on investments (Note 2A).............     2,430,891
                                                                    -----------

NET ASSETS.......................................................   $22,542,117
                                                                    ===========

Outstanding series shares........................................     2,001,143
                                                                    ===========

NET ASSET VALUE PER SHARE........................................        $11.26
                                                                    ===========
</TABLE>

                      See Notes to Financial Statements.

                                      F-1
<PAGE>
    
MASSMUTUAL EQUITY INDEX FUND      
STATEMENT OF OPERATIONS
FOR THE PERIOD ENDED AUGUST 31, 1997*
(UNAUDITED)

<TABLE>

<S>                                                                  <C> 
INVESTMENT INCOME (Note 2B)
Dividends.........................................................   $  137,327
Interest..........................................................       11,040
                                                                     ----------
  TOTAL INCOME....................................................      148,367
                                                                     ----------

EXPENSES
Investment management fee (Note 3)................................       29,505
Audit fees........................................................        9,877
Trustees' fees....................................................        8,432
Other.............................................................           60
                                                                     ----------
  TOTAL EXPENSES..................................................       47,874
                                                                     ----------

NET INVESTMENT INCOME (Notes 2C and 2D)...........................      100,493
                                                                     ----------

NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
 (Notes 2A, 2B, 2C and 2D)
Net realized loss on investments (Notes 2B, 2C and 2D)............         (673)
                                                                     ----------
Net unrealized appreciation on investments (Note 2A)..............    2,430,891
                                                                     ----------
NET GAIN..........................................................    2,430,218
                                                                     ----------
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS..............   $2,530,711
                                                                     ==========
</TABLE>
 
*The Fund commenced operations on May 1, 1997.

                      See Notes to Financial Statements.

                                      F-2
<PAGE>
 
    
MASSMUTUAL EQUITY INDEX FUND     
STATEMENT OF CHANGES IN NET ASSETS
For The Period Ended August 31, 1997*
(Unaudited)

<TABLE>

<S>                                                                 <C>
Increase (decrease) in net assets
Operations:
Net investment income..........................................     $   100,493
Net realized loss on investments...............................            (673)
Net unrealized appreciation on investments.....................       2,430,891
                                                                    -----------

Net increase in net assets resulting...........................       2,530,711
 from operations
Net increase in capital share transactions (Note 5)............      20,011,406
                                                                    -----------
  Total increase...............................................      22,542,117

NET ASSETS, at beginning of the period.........................               0
                                                                    -----------

NET ASSETS, at end of the period...............................     $22,542,117
                                                                    ===========
Undistributed net investment income included in net
  assets at end of the period..................................     $   100,493
                                                                    ===========
</TABLE>

*The Fund commenced operations on May 1, 1997.

                      See Notes to financial Statements.

                                      F-3
<PAGE>
    
MASSMUTUAL EQUITY INDEX FUND      
FINANCIAL HIGHLIGHTS

Selected per share data for a series share outstanding throughout the period.

<TABLE>
<CAPTION>
                                                                                     Period
                                                                                      Ended
                                                                                August 31, 1997*
                                                                                   (Unaudited)
                                                                                 ---------------
<S>                                                                             <C>
Net asset value:
  Beginning of period.....................................................              $ 10.000
                                                                                        --------
Income From Investment Operations:
Net investment income.....................................................                   .05
Net realized and unrealized gain on investments...........................                  1.21
                                                                                        --------
Total from investment operations..........................................                  1.26
                                                                                        --------
Net asset value:
  End of period...........................................................              $  11.26
                                                                                        ========
Total return***...........................................................                 12.60%

Net assets (in millions):
  End of period...........................................................              $  22.54
Ratio of operating expenses to average net assets.........................                  0.21%**
Ratio of net investment income to average net assets......................                  0.45%**
Portfolio turnover rate...................................................                     0%
</TABLE>

*   The Fund commenced operations on May 1, 1997.

**  Percentages represent results for the period and are not annualized.

*** Total return information shown in the Financial Highlights table does not
reflect expenses that apply at the separate account level or to related
insurance products. Inclusion of these charges would reduce the total return
figure for the period shown.

                      See Notes to Financial Statements.

                                      F-4
<PAGE>

    
MML Equity Index Fund       
SCHEDULE OF INVESTMENTS
August 31, 1997
(Unaudited)

<TABLE> 
<CAPTION> 
                                                        Number          Market
                                                          of             Value
                                                        Shares         (Note 2A)
                                                        ------         ---------
<S>                                                    <C>             <C> 
EQUITIES - 99.99%

Advertising - 0.10%
  Interpublic Group of Companies, Inc. .......              450         $ 21,938
                                                    -----------      -----------

Aerospace - 2.02%
  AlliedSignal Inc. ..........................              900           74,306
  Boeing Company .............................            3,310          180,188
  General Dynamics Corporation ...............              200           15,925
  Lockheed Martin Corporation ................              600           62,213
  Northrop Grumman Corporation ...............              200           23,413
  Textron, Inc. ..............................              600           37,388
  United Technologies Corporation ............              800           62,450
                                                    -----------      -----------
                                                          6,610          455,883
                                                    -----------      -----------

Airlines - 0.30%
  AMR Corporation ............................              300           30,225
  Delta Air Lines, Inc. ......................              200           17,300
  Southwest Airlines Company .................              500           14,000
  USAirways Group, Inc. ......................              200            6,825
                                                    -----------      -----------
                                                          1,200           68,350
                                                    -----------      -----------

Apparel, Textiles, Shoes - 0.38%
  Fruit of the Loom Inc. .....................              300            8,025
  Liz Claiborne Inc. .........................              200            8,913
  NIKE, Inc., Class B ........................              900           48,038
  Reebok International, Inc. .................              100            4,394
  VF Corporation .............................              200           17,675
                                                    -----------      -----------
                                                          1,700           87,045
                                                    -----------      -----------

Automobiles - 1.77%
  Chrysler Corporation .......................            2,200           77,275
  Ford Motor Company .........................            3,800          163,400
  General Motors Corporation .................            2,400          150,600
  Navistar International Corporation* ........              300            7,444
                                                    -----------      -----------
                                                          8,700          398,719
                                                    -----------      -----------

Automobile Parts & Equipment - 0.44%
  AutoZone, Inc. .............................              400           11,300
  Cummins Engine, Inc. .......................              100            7,694
  Dana Corporation ...........................              300           13,819
  Echlin Inc. ................................              200            7,413
  Genuine Parts Company ......................              600           18,525
  Johnson Controls Inc. ......................              300           14,306
  Pep Boys-Manny, Moe & Jack .................              200            5,300
  TRW Inc. ...................................              400           20,850
                                                    -----------      -----------
                                                          2,500           99,207
                                                    -----------      -----------

Banks - 8.48%
  Banc One Corporation .......................            1,300           69,713
  Bank of New York Inc. ......................            1,300           58,013
  BankAmerica Corporation ....................            2,200          144,787
  BankBoston Corporation .....................              500           41,563
  Bankers Trust, New York Corporation ........              200           20,750
  Barnett Banks Inc. .........................              600           40,875
  Chase Manhattan Corporation ................            1,400          155,662
  Citicorp ...................................            1,500          191,437
  Comerica Inc. ..............................              300           21,244
  CoreStates Financial Corporation ...........              800           49,200
  Fifth Third Bancorporation .................              450           26,325
  First Chicago Corporation ..................            1,000           71,750
  First Union Corporation ....................            1,800           86,513
  Fleet Financial Group Inc. .................              800           51,550
  KeyCorp (New) ..............................              700           42,438
  MBNA Corporation ...........................            1,100           42,281
  Mellon Bank Corporation ....................            1,000           48,125
  Morgan Stanley, Dean Witter, Discover &
   Company ...................................            1,825           87,828
  Morgan (J.P.) & Company, Inc. ..............              600           64,350
  National City Corporation ..................              700           39,550
  NationsBank Corporation ....................            2,500          148,437
  Norwest Corporation ........................            1,100           63,181
  PNC Bank Corporation .......................            1,500           64,875
  Republic New York Corporation ..............              200           21,413
  State Street Corporation ...................              500           24,938
  SunTrust Banks Inc. ........................              800           50,000
  U.S. Bancorp ...............................              877           76,792
  Wachovia Corporation .......................              500           31,125
  Wells Fargo & Company ......................              300           76,275
                                                    -----------      -----------
                                                         28,352        1,910,990
                                                    -----------      -----------

Broadcasting - 0.03%
  Meredith Corporation .......................              200            6,000
                                                    -----------      -----------

Building Materials - 0.70%
  Centex Corporation .........................              100            5,438
  Crane Company ..............................              200            8,825
  Fleetwood Enterprises ......................              100            3,113
  Home Depot Inc. ............................            2,250          106,172
  Kaufman & Broad Home Corporation ...........              100            2,000
  Masco Corporation ..........................              500           22,219
  Pall Corporation ...........................              400            9,475
                                                    -----------      -----------
                                                          3,650          157,242
                                                    -----------      -----------

Business Equipment and Supplies - 2.05%
  Avery Dennison Corporation .................              400           16,425
  Ikon Office Solutions ......................              400           10,400
  International Business Machines
   Corporation ...............................            3,200          322,800
  Pitney Bowes Inc. ..........................              500           38,188
  Xerox Corporation ..........................            1,000           75,500
                                                    -----------      -----------
                                                          5,500          463,313
                                                    -----------      -----------

Business Services - 0.32%
  CUC International Inc. .....................            1,300           30,550
  Deluxe Corporation .........................              200            6,588
  Federal Express Corporation ................              400           26,575
  Harland (John H.) Company ..................              100            1,981
  Moore Corporation Ltd. .....................              300            5,944
                                                    -----------      -----------
                                                          2,300           71,638
                                                    -----------      -----------

Chemicals and Plastics - 3.51%
  Air Products & Chemicals Inc. ..............              400           32,625
  Dow Chemical Company .......................              800           70,800
  duPont (E.I.) deNemours & Company ..........            3,600          224,324
  Eastman Chemical Company ...................              200           11,963
  Ecolab Inc. ................................              200            9,013
  Engelhard Corporation ......................              500           10,438
  FMC Corporation ............................              100            8,306
  Grace (W.R.) & Company .....................              200           13,763
  Great Lakes Chemical Corporation ...........              200            9,300
  Hercules, Inc. .............................              300           15,506
  Kerr-McGee Corporation .....................              200           12,425
  Mallinckrodt Group Inc. ....................              300           10,913
</TABLE> 


                                      F-5
<PAGE>
 
SCHEDULE OF INVESTMENTS (Continued)
August 31, 1997
(Unaudited)

<TABLE> 
<CAPTION> 

                                                        Number          Market
                                                          of             Value
                                                        Shares         (Note 2A)
                                                        ------         ---------
<S>                                                     <C>          <C> 
EQUITIES (Continued)

Chemicals and Plastics  (Continued)
  Minnesota Mining & Manufacturing Company .....          1,300      $   116,837
  Monsanto Company .............................          1,900           83,481
  Morton International Inc. ....................            400           13,300
  Nalco Chemical Company .......................            200            8,000
  Praxair Inc. .................................            500           26,719
  Raychem Corporation ..........................            100            9,306
  Rockwell International Corporation ...........            700           42,000
  Rohm & Haas Company ..........................            200           19,163
  Sigma-Aldrich Corporation ....................            300            9,788
  Union Camp Corporation .......................            200           11,863
  Union Carbide Corporation ....................            400           20,525
                                                    -----------      -----------
                                                         13,200          790,358
                                                    -----------      -----------
                                                                     
Coal - 0.27%                                                         
  CSX Corporation ..............................            700           40,031
  Eastern Enterprises ..........................            100            3,569
  Fluor Corporation ............................            300           16,838
                                                    -----------      -----------
                                                          1,100           60,438
                                                    -----------      -----------
                                                                     
Communication Equipment - 1.69%                                      
  Cabletron Systems, Inc. ......................            500           15,125
  GTE Corporation ..............................          3,000          133,687
  Harris Corporation ...........................            100            8,713
  Motorola, Inc. ...............................          1,900          139,412
  National Semiconductor Corporation ...........            400           13,700
  Scientific-Atlanta Inc. ......................            200            4,350
  Tellabs, Inc. ................................          1,100           65,656
                                                    -----------      -----------
                                                          7,200          380,643
                                                    -----------      -----------
                                                                     
Computer Hardware, Software or Services - 8.59%                      
  Advanced Micro Devices Inc. ..................            400           14,975
  Amdahl Corporation ...........................            300            3,694
  AMP Inc. .....................................            700           35,000
  Apple Computer Inc. ..........................            400            8,700
  Autodesk, Inc. ...............................            200            8,750
  Automatic Data Processing Inc. ...............            900           41,006
  Bay Networks, Inc. ...........................            600           21,225
  Ceridian Corporation .........................            200            6,913
  CISCO Systems Inc. ...........................          2,100          158,288
  Compaq Computer Corporation ..................          2,000          131,000
  Computer Associates International Inc. .......          1,100           73,563
  Computer Sciences Corporation ................            200           14,875
  Data General Corporation .....................            100            3,594
  Dell Computer Corporation ....................          1,200           98,475
  Digital Equipment Corporation ................            500           21,500
  Honeywell, Inc. ..............................            400           27,650
  Intel Corporation ............................          5,200          479,049
  Microsoft Corporation ........................          3,900          515,530
  Nextlevel Systems ............................            500           10,031
  Novell Inc. ..................................          1,100           10,313
  Oracle Systems Corporation ...................          3,300          125,812
  Parametric Technology Corporation ............            400           18,575
  Seagate Technologies Inc. ....................            800           30,550
  Sun Microsystems Inc. ........................          1,200           57,600
  Tandem Computers Inc. ........................            400           13,600
  Unisys Corporation ...........................            500            5,656
                                                    -----------      -----------
                                                         26,600        1,935,924
                                                    -----------      -----------

Computer - Semiconductors - 0.43%
  Applied Materials ............................            600      $    56,625
  EMC Corporation ..............................            800           41,050
                                                    -----------      -----------
                                                          1,400           97,675
                                                    -----------      -----------
                                                    
Consumer Non-Durables - 3.47%                       
  Corning Inc. .................................          1,000           52,875
  General Electric Corporation .................         10,600          662,500
  Grainger (W.W.), Inc. ........................            200           17,763
  Lowe's Companies Inc. ........................            600           20,738
  Newell Company ...............................            500           19,688
  Whitman Corporation ..........................            400            9,800
                                                    -----------      -----------
                                                         13,300          783,364
                                                    -----------      -----------
                                                    
Consumer Services - 0.19%                           
  Block (H & R) Inc. ...........................            300           11,775
  Manor Care Inc. ..............................            200            6,175
  Service Corporation International ............            800           25,600
                                                    -----------      -----------
                                                          1,300           43,550
                                                    -----------      -----------
                                                    
Consumer Staples - 0.08%                            
  Pioneer Hi-Bred International Inc. ...........            200           17,138
                                                    -----------      -----------
                                                    
Containers - 0.10%                                  
  Ball Corporation .............................            100            3,288
  Crown Cork & Seal Company Inc. ...............            400           20,350
                                                    -----------      -----------
                                                            500           23,638
                                                    -----------      -----------
                                                    
Cosmetics - Toiletry - 0.17%                        
  Alberto-Culver Company, Class B ..............            200            5,838
  Avon Products Inc. ...........................            500           32,031
                                                    -----------      -----------
                                                            700           37,869
                                                    -----------      -----------
                                                    
Diversified - 1.12%                                 
  Aeroquip-Vickers, Inc. .......................            100            5,588
  Cognizant Corporation ........................            500           21,000
  Fortune Brands, Inc. .........................            500           17,188
  Loews Corporation ............................            300           30,581
  Raytheon Company .............................            700           38,500
  Tyco International Ltd. ......................            500           39,219
  Unilever N.V .................................            500          100,625
                                                    -----------      -----------
                                                          3,100          252,701
                                                    -----------      -----------
                                                    
Electrical Equipment - 1.38%                        
  Cooper Industries Inc. .......................            300           15,994
  Foster Wheeler Corporation ...................            100            4,569
  General Signal Corporation ...................            100            4,338
  Hewlett-Packard Company ......................          3,300          202,330
  Tektronix Inc. ...............................            100            5,556
  Texas Instruments Inc. .......................            600           68,175
  Thomas & Betts Corporation ...................            200           11,200
                                                    -----------      -----------
                                                          4,700          312,162
                                                    -----------      -----------
                                                    
Electronics - 0.73%                                 
  Eaton Corporation ............................            200           18,013
  EG&G Inc. ....................................            200            4,250
  Emerson Electric Company .....................          1,400           76,563
  Tandy Corporation ............................            200           13,275
  Westinghouse Electric Corporation ............          2,000           51,500
                                                    -----------      -----------
                                                          4,000          163,601
                                                    -----------      -----------
</TABLE> 

                                      F-6
<PAGE>
 
SCHEDULE OF INVESTMENTS (Continued)
August 31, 1997
(Unaudited)

<TABLE>
<CAPTION>

                                                              Number          Market
                                                                of             Value
                                                              Shares         (Note 2A)
                                                              ------         ---------
<S>                                                      <C>               <C>
EQUITIES (Continued)

Energy and Resources - 0.20%
  Burlington Resources, Inc............................          400       $    20,250
  Dresser Industries Inc...............................          600            25,050
                                                         -----------       -----------
                                                               1,000            45,300
                                                         -----------       -----------

Entertainment - 1.56%
  Brunswick Corporation................................          300             9,150
  Disney (Walt) Company................................        2,100           161,306
  Harcourt General Corporation.........................          300            14,288
  Hasbro Inc...........................................          400            10,750
  ITT Corporation (New)*...............................          400            25,125
  King World Productions, Inc..........................          100             3,975
  Mattel, Inc..........................................          900            30,094
  Time Warner Inc......................................        1,900            97,850
                                                         -----------       -----------
                                                               6,400           352,538
                                                         -----------       -----------

Environmental Control - 0.02%
  Safety-Kleen Corporation.............................          200             4,038
                                                         -----------       -----------

Financial Services - 3.68%
  American Express Company.............................        1,500           116,625
  American General Corporation.........................          710            34,213
  Beneficial Corporation...............................          200            14,313
  Countrywide Credit Industries........................          400            13,475
  Dow Jones & Company Inc..............................          300            12,844
  Equifax, Inc.........................................          400            11,775
  Federal Home Loan Mortgage Corporation...............        2,300            74,894
  Federal National Mortgage Association................        3,500           154,000
  First Data Corporation...............................        1,500            61,594
  Green Tree Financial Corporation.....................          500            21,969
  Household International, Inc.........................          300            33,281
  Merrill Lynch & Company Inc..........................        1,000            61,500
  Pulte Corporation....................................          100             3,663
  Salomon Inc..........................................          400            23,950
  Schwab (Charles) Corporation.........................          700            29,706
  SunAmerica Inc.......................................          400            21,550
  Temple-Inland Inc....................................          200            12,900
  Travelers Group Inc..................................        2,000           127,000
                                                         -----------       -----------
                                                              16,410           829,252
                                                         -----------       -----------

Food and Beverages - 7.06%
  Albertson's, Inc.....................................          800            27,500
  Anheuser-Busch Companies Inc.........................        1,600            68,200
  Campbell Soup Company................................        1,500            69,563
  Coca-Cola Company....................................        7,900           452,768
  ConAgra Inc..........................................          700            45,019
  Coors (Adolph) Company, Class B......................          100             3,688
  CPC International Inc................................          500            44,563
  Fleming Companies Inc................................          100             1,888
  Heinz (H.J.) Company.................................        1,200            49,950
  Hershey Foods Corporation............................          500            26,688
  Kellogg Company......................................        1,400            62,650
  PepsiCo Inc..........................................        4,900           176,400
  Philip Morris Companies Inc..........................        7,800           340,274
  Quaker Oats Company..................................          700            32,900
  Ralston-Purina Group.................................          300            27,000
  Sara Lee Corporation.................................        2,000            80,500
  Seagram Company Ltd..................................        1,200            41,925
  UST Inc..............................................          600            17,325
  Wrigley (Wm) Jr. Company.............................          300            21,750
                                                         -----------       -----------
                                                              34,100         1,590,551
                                                         -----------       -----------

Food Distribution - 0.77%
  Archer-Daniels-Midland Company.......................        1,890            40,871
  Costco Companies Inc.................................          700            25,244
  General Mills Inc....................................          500            32,063
  Giant Food, Inc., Class A............................          200             6,500
  Great Atlantic & Pacific Tea Company Inc.............          100             2,506
  Kroger Company.......................................          800            24,100
  Supervalu Inc........................................          200             7,850
  Sysco Corporation....................................          500            17,750
  Winn Dixie Stores Inc................................          500            16,844
                                                         -----------       -----------
                                                               5,390           173,728
                                                         -----------       -----------

Freight and Shipping - 0.04%
  Caliber Systems Inc..................................          200             8,350
                                                         -----------       -----------

Glass Products - 0.20%
  Owens Corning Fiberglass Corporation.................          200             8,113
  PPG Industries Inc...................................          600            37,800
                                                         -----------       -----------
                                                                 800            45,913
                                                         -----------       -----------

Health Care Facilities - 0.49%
  Beverly Enterprises..................................          300             4,894
  Columbia/HCA Healthcare Corporation..................        2,100            66,281
  Humana Inc...........................................          500            11,781
  Tenet Healthcare Corporation.........................        1,000            27,250
                                                         -----------       -----------
                                                               3,900           110,206
                                                         -----------       -----------

Health Care Products - 3.41%
  Abbott Laboratories..................................        2,400           143,850
  Allergan, Inc........................................          200             6,475
  Bausch & Lomb Inc....................................          200             8,213
  Becton, Dickinson & Company..........................          400            19,175
  Merck & Company Inc..................................        3,900           358,068
  Pfizer, Inc..........................................        4,200           232,574
                                                         -----------       -----------
                                                              11,300           768,355
                                                         -----------       -----------

Holding Companies - 0.14%
  Providian, LLC.......................................          300            11,175
  Public Service Enterprise............................          800            19,850
                                                         -----------       -----------
                                                               1,100            31,025
                                                         -----------       -----------

Home Appliances - 0.40%
  Black & Decker Corporation...........................          300            11,493
  Illinois Tool Works Inc..............................          800            38,700
  Maytag Corporation...................................          300             8,231
  Snap-On, Inc.........................................          200             8,400
  Stanley Works........................................          300            12,769
  Whirlpool Corporation................................          200            11,450
                                                         -----------       -----------
                                                               2,100            91,043
                                                         -----------       -----------

Home Furnishings and Housewares - 0.80%
  American Home Products Corporation...................        2,000           144,000
  Armstrong World......................................          100             6,844
  Rubbermaid, Inc......................................          500            12,500
  Springs Industries, Inc..............................          200             9,400
  Tupperware Corporation...............................          200             6,713
                                                         -----------       -----------
                                                               3,000           179,457
                                                         -----------       -----------
</TABLE>


                                      F-7
<PAGE>
 
SCHEDULE OF INVESTMENTS (Continued)
August 31, 1997
(Unaudited)

<TABLE>
<CAPTION>

                                                              Number          Market
                                                                of             Value
                                                              Shares         (Note 2A)
                                                              ------         ---------
<S>                                                      <C>               <C>
EQUITIES (Continued)

Hotels and Restaurants - 0.90%
  Darden Restaurants Inc...............................          500       $     5,031
  Harrah's Entertainment Corporation...................          300             6,731
  HFS, Inc.*...........................................          400            22,274
  Hilton Hotels Corporation............................          800            24,550
  Marriott International Inc...........................          400            26,625
  McDonald's Corporation...............................        2,300           108,819
  Wendy's International Inc............................          400             9,625
                                                         -----------       -----------
                                                               5,100           203,655
                                                         -----------       -----------

Insurance - 3.91%
  Aetna Life & Casualty Company........................          500            47,718
  Allstate Corporation.................................        1,500           109,592
  American International Group, Inc....................        2,250           212,342
  AON Corporation......................................          600            30,562
  Chubb Corporation....................................          600            40,124
  CIGNA Corporation....................................          300            54,919
  Conseco, Inc.........................................          500            21,500
  General Re Corporation...............................          200            38,774
  Hartford Financial Services Group, Inc...............          400            31,900
  Jefferson-Pilot Corporation..........................          200            13,913
  Lincoln National Corporation.........................          400            26,774
  Marsh & McLennan Companies, Inc......................          600            40,950
  MBIA Inc.............................................          200            22,650
  MGIC Investment Corporation..........................          400            20,125
  SAFECO Corporation...................................          400            19,650
  St. Paul Companies Inc...............................          200            14,675
  Torchmark Corporation................................          400            15,075
  Transamerica Corporation.............................          200            19,713
  United Healthcare Corporation........................          600            29,175
  UNUM Corporation.....................................          400            16,500
  USF & G Corporation..................................          400             8,775
  Washington Mutual Inc................................          760            45,505
                                                         -----------       -----------
                                                              12,010           880,911
                                                         -----------       -----------

Machinery and Heavy Equipment - 0.81%
  Caterpillar Inc......................................        1,200            69,674
  Cincinnati Milacron Inc..............................          100             2,575
  Deere & Company......................................          800            44,800
  Dover Corporation....................................          400            27,625
  Ingersoll-Rand Company...............................          400            24,050
  Parker-Hannifin Corporation..........................          200            12,863
                                                         -----------       -----------
                                                               3,100           181,587
                                                         -----------       -----------

Manufacturing - 1.45%
  Alcan Aluminum Ltd...................................          700            24,456
  Aluminum Company of America..........................          600            49,350
  Boston Scientific Corporation*.......................          700            49,350
  Briggs & Stratton Corporation........................          100             4,831
  Brown-Forman Corporation, Class B....................          200             9,650
  Case Corporation.....................................          300            20,118
  LSI Logic Corporation*...............................          500            16,094
  Micron Technology Inc................................          700            31,193
  PACCAR Inc...........................................          200             9,475
  Reynolds Metals Company..............................          200            14,138
  Sherwin-Williams Company.............................          600            16,463
  Silicon Graphics Inc.*...............................          600            16,463
  Thermo Electron Corporation..........................          400            16,100
  3COM Corporation*....................................        1,000            49,937
                                                         -----------       -----------
                                                               6,800           327,618
                                                         -----------       -----------

Medical Instruments, Services and Supplies - 0.99%
  Bard (C.R.), Inc.....................................          200             6,900
  Baxter International Inc.............................          900            47,868
  Biomet, Inc.*........................................          300             6,225
  Cardinal Health, Inc.................................          300            19,875
  Guidant Corporation..................................          300            26,344
  HEALTHSOUTH Corporation..............................        1,100            27,431
  Medtronic, Inc.......................................          700            63,262
  Shared Medical Systems Corporation...................          100             4,900
  St. Jude Medical, Inc.*..............................          300            11,419
  United States Surgical Corporation...................          300             9,881
                                                         -----------       -----------
                                                               4,500           224,105
                                                         -----------       -----------

Metals and Mining - 0.69%
  Allegheny Teledyne, Inc..............................          600            18,525
  ASARCO Inc...........................................          100             3,075
  Barrick Gold Corporation.............................        1,100            25,025
  Battle Mountain Gold Company.........................          700             3,981
  Cyprus Amax Minerals Company.........................          300             7,575
  Echo Bay Mines Ltd...................................          400             2,025
  Freeport McMoRan Copper & Gold, Class B..............          600            16,800
  Homestake Mining Company.............................          500             7,000
  Inco Ltd.............................................          600            16,238
  Newmont Mining Corporation...........................          472            19,972
  Phelps Dodge Corporation.............................          300            24,131
  Placer Dome, Inc.....................................          700            11,638
                                                         -----------       -----------
                                                               6,372           155,985
                                                         -----------       -----------

Miscellaneous - 0.48%
  S & P Depositary Receipt.............................        1,200           108,450
                                                         -----------       -----------

Natural Gas - 0.47%
  Columbia Gas System, Inc.............................          200            13,200
  Consolidated Natural Gas Company.....................          300            17,719
  Enron Corporation....................................        1,100            42,419
  NICOR Inc............................................          100             3,631
  ONEOK Inc............................................          100             3,238
  Pacific Enterprises Inc..............................          300             9,881
  Sonat, Inc...........................................          300            14,944
                                                         -----------       -----------
                                                               2,400           105,032
                                                         -----------       -----------

News and Publishing - 0.88%
  Gannett Company Inc..................................          500            48,718
  Kimberly-Clark Corporation...........................        1,800            85,387
  Knight-Ridder Inc....................................          300            15,188
  New York Times Company, Class A......................          300            14,175
  Times Mirror Company (New), Class A..................          300            15,206
  Tribune Company......................................          400            19,775
                                                         -----------       -----------
                                                               3,600           198,449
                                                         -----------       -----------

Oil - 8.41%
  Amerada Hess Corporation.............................          300            17,438
  Amoco Corporation....................................        1,600           151,300
  Anardko Pete Company.................................          200            14,688
  Apache Corporation...................................          300            11,906
  Ashland, Inc.........................................          200            10,025
  Atlantic Richfield Company...........................        1,000            75,000
  Baker Hughes Inc.....................................          500            21,188
  Chevron Corporation..................................        2,000           154,873
  Coastal Corporation..................................          300            17,325
</TABLE>


                                      F-8
<PAGE>
 
SCHEDULE OF INVESTMENTS (Continued)
August 31, 1997
(Unaudited)

<TABLE>
<CAPTION>
                                                              Number         Market
                                                                of            Value
                                                              Shares        (Note 2A)
                                                              ------        ---------
<S>                                                      <C>               <C>
EQUITIES (Continued)

Oil  (Continued)
  Exxon Corporation....................................        7,900       $   483,380
  Halliburton Company..................................          800            38,200
  Louisiana Land & Exploration Company.................          100             7,656
  McDermott International, Inc.........................          200             6,450
  Mobil Corporation....................................        2,600           189,150
  Occidental Petroleum Corporation.....................        1,100            25,781
  Oryx Energy Company*.................................          400            10,575
  Pennzoil Company.....................................          100             7,719
  Phillips Petroleum Company...........................          900            42,805
  Royal Dutch Petroleum Company........................        6,800           345,100
  Tenneco Inc..........................................          500            24,281
  Texaco Inc...........................................          800            92,200
  Union Pacific Corporation............................          800            51,950
  Union Pacific Resources Group........................          800            20,000
  Unocal Corporation...................................        1,200            46,874
  USX-Marathon Group Common (New)......................          900            29,306
                                                         -----------       -----------
                                                              32,300         1,895,170
                                                         -----------       -----------

Oil Equipment and Services - 0.67%
  Helmerich & Payne, Inc...............................          200            14,125
  Schlumberger Ltd.....................................        1,600           121,900
  Western Atlas, Inc. *................................          200            15,850
                                                         -----------       -----------
                                                               2,000           151,875
                                                         -----------       -----------

Paper and Forest Products - 0.92%
  Bemis Company Inc....................................          200             8,788
  Boise Cascade Corporation............................          200             7,913
  Champion International Corporation...................          300            17,756
  Fort James Corporation...............................          300            12,600
  Georgia-Pacific Corporation..........................          300            27,375
  Harnischfeger Industries Inc.........................          100             4,013
  International Paper Company..........................        1,000            52,750
  Louisiana Pacific Corporation........................          300             6,638
  Mead Corporation.....................................          100             7,094
  Potlatch Corporation.................................          100             4,669
  Stone Container Corporation..........................          400             6,900
  Weyerhaeuser Company.................................          600            34,650
  Willamette Industries Inc............................          200            15,950
                                                         -----------       -----------
                                                               4,100           207,096
                                                         -----------       -----------

Personal Items - 2.78%
  Colgate-Palmolive Company............................          800            50,200
  Gillette Company.....................................        1,800           149,063
  International Flavors & Fragrances, Inc..............          300            15,338
  Jostens Inc..........................................          200             4,825
  Proctor & Gamble Company.............................        2,200           292,737
  Warner-Lambert Company...............................          900           114,355
                                                         -----------       -----------
                                                               6,200           626,518
                                                         -----------       -----------

Petroleum Refining - 0.19%
  Rowan Companies......................................          300             8,962
  Sun Company..........................................          300            11,662
  Williams Companies Inc...............................          500            23,281
                                                         -----------       -----------
                                                               1,100            43,905
                                                         -----------       -----------

Pharmaceuticals - 3.86%
  ALZA Corporation*....................................          300             8,700
  Bristol-Myers Squibb Company.........................        3,500           266,000
  Johnson & Johnson....................................        4,300           243,755
  Lilly (Eli) & Company................................        1,700           177,862
  Pharmacia & Upjohn Inc.*.............................        1,700            57,906
  Schering-Plough Corporation..........................        2,400           115,200
                                                         -----------       -----------
                                                              13,900           869,423
                                                         -----------       -----------

Photographic Equipment and Supplies - 0.37%
  Eastman Kodak Company................................        1,100            71,912
  Polaroid Corporation.................................          200            10,562
                                                         -----------       -----------
                                                               1,300            82,474
                                                         -----------       -----------

Printing and Publishing - 0.31%
  American Greetings Corporation, Class A..............          200             6,950
  Donnelly (RR) & Sons Company.........................          500            19,469
  Dun & Bradstreet Corporation.........................          500            14,000
  McGraw-Hill Inc......................................          300            18,394
  Westvaco Corporation.................................          300            10,163
                                                         -----------       -----------
                                                               1,800            68,976
                                                         -----------       -----------

Railroads - 0.17%
  Norfolk Southern Corporation.........................          400            39,200
                                                         -----------       -----------

Research and Development - 0.18%
  Amgen Inc.*..........................................          800            39,650
                                                         -----------       -----------

Retail - Store - 3.52%
  American Stores Company..............................          800            18,950
  Charming Shoppes Inc.................................          400             2,413
  Circuit City Stores Inc. - Circuit City..............          400            14,250
  CVS Corporation......................................          300            16,913
  Dayton Hudson Corporation............................          700            39,900
  Dillard's Inc., Class A..............................          400            16,000
  Federated Department Store*..........................          600            25,200
  Gap Inc..............................................          900            39,994
  K Mart Corporation...................................        1,500            20,813
  Limited Inc..........................................          900            20,475
  Longs Drug Stores Company............................          100             2,531
  May Department Stores Company........................          800            43,050
  Mercantile Stores Company............................          200            12,488
  Nordstrom, Inc.......................................          200            11,700
  Penney (J.C.) Company Inc............................          800            48,000
  Rite Aid Corporation.................................          400            20,025
  Russell Corporation..................................          100             2,850
  Sears, Roebuck & Company.............................        1,300            73,774
  Stride Rite Corporation..............................          200             2,375
  TJX Companies, Inc...................................          400            11,000
  Toys R Us Inc.*......................................        1,000            34,562
  Walgreen Company.....................................        1,600            43,100
  Wal-Mart Stores, Inc.................................        7,400           262,700
  Woolworth Corporation................................          500            11,188
                                                         -----------       -----------
                                                              21,900           794,251
                                                         -----------       -----------

Savings and Loan Associations - 0.13%
  Ahmanson (H.F.) Company..............................          400            20,300
  Golden West Financial Corporation....................          100             8,231
                                                         -----------       -----------
                                                                 500            28,531
                                                         -----------       -----------
</TABLE>


                                      F-9
<PAGE>
 
SCHEDULE OF INVESTMENTS (Continued)
August 31, 1997
(Unaudited)

<TABLE>
<CAPTION>
                                                              Number          Market
                                                                of             Value
                                                              Shares         (Note 2A)
                                                              ------         ---------
<S>                                                      <C>               <C>
EQUITIES (Continued)

Soaps and Detergents - 0.12%
  Clorox Company.......................................          200       $    26,250
                                                         -----------       -----------

Steel - 0.21%
  Armco Inc.*..........................................          400             2,375
  Bethlehem Steel Corporation*.........................          400             4,800
  Inland Steel Corporation*............................          200             4,213
  Nucor Corporation....................................          300            17,006
  Timken Company.......................................          200             7,488
  USX-U.S. Steel Group Inc.............................          200             7,025
  Worthington Industries, Inc..........................          300             5,569
                                                         -----------       -----------
                                                               2,000            48,476
                                                         -----------       -----------

Technology - 0.63%
  Ameritech Corporation................................        1,800           112,837
  ITT Industries*......................................          400            12,600
  Millipore Corporation................................          200             9,900
  Perkin-Elmer Corporation.............................          100             7,400
                                                         -----------       -----------
                                                               2,500           142,737
                                                         -----------       -----------

Telecommunications - 6.43%
  AirTouch Communications, Inc.*.......................        1,600            54,100
  ALLTEL Corporation...................................          600            18,975
  Andrew Corporation*..................................          300             7,463
  AT&T Corporation.....................................        5,600           218,400
  Bell Atlantic Corporation............................        2,475           179,141
  BellSouth Corporation................................        3,200           140,800
  Comcast Corporation, Special Class A
   (non-voting)........................................        1,000            23,438
  DSC Communications Corporation*......................          300             8,738
  Frontier Corporation.................................          600            13,238
  Lucent Technologies, Inc.............................        2,100           163,536
  MCI Communications Corporation.......................        2,200            62,700
  Northern Telecommunications Ltd......................          800            79,300
  SBC Communications...................................        3,000           163,124
  Sprint Corporation...................................        1,400            65,800
  Tele-Communications Inc., Class A*...................        2,100            36,750
  US West, Inc.........................................        1,500            53,718
  US West Media, Inc.*.................................        2,000            40,000
  Viacom Inc., Class B* (non-voting)...................        1,200            35,550
  WorldCom, Inc........................................        2,800            83,825
                                                         -----------       -----------
                                                              34,775         1,448,596
                                                         -----------       -----------

Tire and Rubber - 0.21%
  Cooper Tire & Rubber Company.........................          300             7,538
  Goodrich (B.F.) Company..............................          200             8,425
  Goodyear Tire & Rubber Company.......................          500            30,813
                                                         -----------       -----------
                                                               1,000            46,776
                                                         -----------       -----------

Transportation - 0.25%
  Burlington Northern Santa Fe.........................          500            45,844
  Ryder System, Inc....................................          300            10,706
                                                         -----------       -----------
                                                                 800            56,550
                                                         -----------       -----------

Utilities - 2.32%
  American Electric Power Company, Inc.................          600            26,213
  Baltimore Gas & Electric Company.....................          400            10,800
  Carolina Power & Light Company.......................          500            16,875
  Central & Southwest Corporation......................          600            12,413
  Cinergy Corporation..................................          500            16,531
  Consolidated Edison Company..........................          700            21,438
  Dominion Resources, Inc..............................          600            21,600
  DTE Energy Company...................................          500            14,813
  Duke Energy Company..................................        1,122            54,346
  Edison International.................................        1,400            33,774
  Entergy Corporation..................................          700            17,369
  FPL Group, Inc.......................................          500            23,250
  GPU, Inc.............................................          400            13,450
  Houston Industries, Inc..............................        1,499            30,355
  National Service Industries, Inc.....................          100             4,425
  Niagara Mohawk Power Corporation.....................          500             4,469
  Northern States Power Company........................          200             9,625
  Ohio Edison Company..................................          500            11,000
  PacifiCorp...........................................          900            18,675
  PECO Energy Company..................................          700            16,669
  Peoples Energy Corporation...........................          100             3,769
  PG & E Corporation...................................        1,300            30,144
  PP & L Resources Inc.................................          500            10,969
  Southern Company.....................................        2,200            46,338
  Texas Utilities Company..............................          745            25,982
  Unicom Corporation...................................          700            16,538
  Union Electric Company...............................          300            11,156
                                                         -----------       -----------
                                                              18,766           522,986
                                                         -----------       -----------

Waste Management - 0.64%
  Browning-Ferris Industries, Inc......................          700            24,456
  Laidlaw Inc., Class B (non-voting)...................        1,000            14,625
  Waste Management, Inc................................        3,300           105,600
                                                         -----------       -----------
                                                               5,000           144,681
                                                         -----------       -----------

Total Equities - 99.99%
  (Cost $20,108,164)...................................                     22,539,055
                                                                           -----------
SHORT-TERM INVESTMENTS - 0.02%
  (Cost $4,937)
  Dreyfus Cash Management Fund, Class A................        4,937             4,937
                                                         -----------       -----------

Total Investments
  (Cost $20,113,101) (a)                       100.01%                    $ 22,543,992
                                               =======                     ===========

(a) Federal Income Tax Information: At August 31, 1997
    the net unrealized appreciation on investments
    based on cost of $20,113,101 for federal
    income tax purposes is as follows:

    Aggregate gross unrealized appreciation for all
    investments in which there is an excess of
    market value over tax cost .....................................       $ 2,678,140

    Aggregate gross unrealized depreciation for all
    investments in which there is an excess of tax
    cost over market value .........................................          (247,249)
                                                                           -----------
    Net unrealized appreciation ....................................       $ 2,430,891
                                                                           ===========
</TABLE>

*   Non-income producing security.



                       See Notes To Financial Statements.
                                     F-10
<PAGE>
 
Notes To Financial Statements
(Unaudited)

1.   HISTORY

MML Equity Index Fund ("the Fund") is a non-diversified series of MML Series
Investment Fund ("MML Trust"), a no load, open-end, management investment
company registered as such under the Investment Company Act of 1940. MML Trust,
which has five separate series of shares, was organized as a business trust
under the laws of the Commonwealth of Massachusetts pursuant to an Agreement and
Declaration of the Trust.

MML Trust was established by Massachusetts Mutual Life Insurance Company
("MassMutual") for the purposes of providing vehicles for the investment of
assets of various separate investment accounts established by MassMutual and by
the life insurance companies which are subsidiaries of MassMutual. Shares of MML
Trust are not offered to the general public. 

Information presented in these financial statements pertains only to the Fund.
Information for the other series of MML Trust are presented under a separate
cover.

2.   SIGNIFICANT ACCOUNTING POLICIES

The following is a summary of significant accounting policies consistently
followed by the Fund in preparation of its financial statements in conformity
with generally accepted accounting principles.

     A.   Investment Valuation

     Generally, the Fund values its Portfolio's securities at market value or,
     in the absence of market value with respect to any portfolio security, at
     fair value as determined by, or under the direction of, the Board of
     Trustees of MML Trust ("the Board"). Portfolio securities are valued on the
     basis of valuations furnished by a pricing service, authorized by the
     Board, which provides the last reported sale price for securities listed on
     a national securities exchange, or on the NASDAQ national market system. If
     securities are unlisted or there is no reported sales price, the bid price
     of the prior trade date will be used. Short-term debt obligations with less
     than one year, but more than sixty days to maturity from the date of
     purchase are valued on the basis of their market value. Debt obligations
     with sixty days or less to maturity from the date of purchase are generally
     valued at amortized cost when the Board believes amortized cost
     approximates market value. Futures contracts are valued based on market
     prices unless such prices do not reflect fair value of the contract, in
     which case they will be valued by or under the direction of the Board. 

     B.   Accounting For Investments

     Investment transactions are accounted for on trade date. Dividend income is
     recorded on ex-dividend date. Interest income is recorded on the accrual
     basis.

     Realized gains and losses on investment transactions and unrealized
     appreciation and depreciation of investments are reported for financial
     statement and federal income tax purposes on the identified cost method.

     C.   Dividends and Distributions

     Dividends of net investment income and distributions of capital gains are
     declared and paid annually or as approved by the Board to avoid the
     application of a 4% non-deductible excise tax on certain undistributed
     amounts of ordinary income and capital gains. Income distributions and
     capital gains distributions are determined in accordance with income tax
     regulations which may differ from generally accepted accounting principles.
     These differences are primarily due to differing treatments of income,
     gains and losses and differing characterizations of distributions made by
     the Fund. 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 Fund
     may periodically make reclassifications among certain of their capital
     accounts without impacting the net asset value of the Fund. 

     D.   Federal Income Tax

     The MML Trust has established a policy for the Fund to comply with the
     provisions of the Internal Revenue Code of 1986, as amended, applicable to
     regulated investment companies. As a result, the Fund will not be subject
     to federal income tax on any net investment income and any capital gains to
     the extent they are distributed or are deemed to have been distributed to
     shareholders.


                                     F-11
<PAGE>
 
Notes To Financial Statements (Continued)

     E.   Estimates

     The preparation of financial statements in conformity with generally
     accepted accounting principles requires management to make estimates and
     assumptions that affect the reported amounts of assets and liabilities and
     disclosure of contingent assets and liabilities at the date of the
     financial statements and the reported amounts of revenues and expenses
     during the reporting period. Actual results could differ from those
     estimates.

3.   INVESTMENT MANAGEMENT FEE

MassMutual serves as investment adviser to the Fund pursuant to an investment
management agreement (the "Investment Management Agreement"). For acting as
such, MassMutual receives a quarterly fee at the annual rate of .40% of the
first $100,000,000 of the average daily net asset value of the Fund, .38% of the
next $150,000,000 and .36% of any excess over $250,000,000. MassMutual has
agreed to bear expenses of the Fund (other than the management fee, interest,
taxes any required trademark licensing fees, custodial fees, brokerage
commissions and extraordinary expenses) in excess of .11% of average daily net
asset value of the Fund through April 30, 1998. MassMutual also acts as transfer
agent and dividend paying agent.

4.   PURCHASE AND SALES OF INVESTMENTS

<TABLE> 
<CAPTION> 
                                                                                      Proceeds    
     For the Period Ended                                        Acquisition         from Sales   
     August 31, 1997*                                               Cost           and Maturities 
     ----------------                                            -----------       --------------
     <S>                                                         <C>               <C> 
     Equities..................................................  $20,180,503       $      73,098  
     Short-term Investments....................................   20,419,567          20,423,466  
</TABLE> 

     * The Fund commenced operations on May 1, 1997.    

5.   NET INCREASE FROM CAPITAL SHARE TRANSACTIONS

The Trust is authorized to issue an unlimited number of shares of beneficial
interest to the Fund at $0.01 par value. Changes in shares of beneficial
interest are as follows:

<TABLE> 
<CAPTION> 

     For the Period Ended
     August 31, 1997*
     ----------------
     <S>                                                         <C> 
     Shares
      Sales of shares..........................................    2,001,143
                                                                 -----------
      Net Increase.............................................    2,001,143
                                                                 ===========

     Amount
      Sales of shares..........................................  $20,011,406
                                                                 -----------
      Net Increase.............................................  $20,011,406
                                                                 ===========
</TABLE> 

     * The Fund commenced operations on May 1, 1997.

6.   INVESTMENT RISK AND CONSIDERATION

Since the fund is non-diversified and a relatively high percentage of the Fund's
assets may be invested in the securities of a limited number of issuers, some of
which may be in the same economic sector, the Fund's portfolio may be more
sensitive to changes in market value of a single issuer or industry.


                                     F-12
<PAGE>
 
                                   APPENDIX
                              SECURITIES RATINGS

This is a description of Standard & Poor's Ratings Group ("S&P") and Moody's
Investors Service, Inc. ("Moody's") commercial paper and bond ratings:

I. 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. 'A' Issues assigned
the highest rating are regarded as having the greatest capacity for timely
payment. Issues in this category are delineated with the numbers 1, 2, and 3 to
indicate the relative degree of safety. The A-1 category is described as
follows:

           "A-1": This designation indicates that the degree of safety regarding
           timely payment is strong. Those issues determined to possess
           extremely strong safety characteristics are denoted with a plus (+)
           sign designation.

Moody's Commercial Paper Ratings--employs three designations, all judged to be
investment grade, to indicate the relative repayment ability of rated issuers.
The highest designation is as follows:

           Prime-1: Issuers rated Prime-1 (or related supporting institutions)
           have a superior ability for repayment of senior short-term debt
           obligations. Prime-1 repayment ability will often 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.

II.  Bond Ratings

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

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

                                      A-1
<PAGE>
 
                  AA--Debt rated AA has a very strong capacity to pay interest
                  and repay principal and differs from the higher rated issues
                  only in small degree.

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 two 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 comprise 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 the Aaa securities.

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.


                                      A-2
<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 four-month period ended August 31, 1997 
         (unaudited)

     (2) Financial Statements included in the Statement of Additional 
         Information constituting Part B of this Registration Statement

         Statements of Assets and liabilities at August 31, 1997 (unaudited)

         Statement of Operations for the period ended August 31, 1997 
         (unaudited)

         Statement of Changes in Net Assets for the period ended August 31, 1997
         (unaudited)

         Financial Highlights for the four-month period ended August 31, 1997 
         (unaudited)

         Portfolio of Investments at August 31, 1997 (unaudited) 

         Notes to Financial Statements     

(B)  EXHIBITS:

Exhibit 1:   Registrant's Agreement and Declaration of Trust, as restated May 
             14, 1993, incorporated by reference to Exhibit 1 of Post-Effective
             Amendment No. 32 to Registrant's Registration Statement on Form N-
             1A.

Exhibit 2:   Registrant's By-Laws, as amended and restated August 6, 1993,
             incorporated by reference to Exhibit 2 of Post-Effective Amendment
             No. 32 to Registrant's Registration Statement on Form N-1A.

Exhibit 3:   Not Applicable.

Exhibit 4:   Not Applicable.
    
Exhibit5(a)  Investment Management Agreement between MML Series Investment Fund
             (the "Trust"), on behalf of the MML Equity Index Fund (the "Fund"),
             and Massachusetts Mutual Life Insurance Company ("MassMutual").

Exhibit 5(b) Investment Sub-Advisory Agreement between MassMutual and Mellon
             Equity Associates.     

Exhibit 6:   Not Applicable.

Exhibit 7:   Not Applicable.
    
Exhibit 8:   Form of Custodian Agreement between the Trust, on behalf of the
             Fund and Boston Safe Deposit and Trust Company, incorporated by
             reference to Exhibit 8 of Post-Effective Amendment No. 35 to
             Registrant's Registration Statement or Form N-1A

Exhibit 9:   Accounting Services Agreement dated as of April 28, 1997 between
             the Trust, on behalf of the Fund, and First Data Investor Services
             Group, Inc.

Exhibit 10:  Opinion of counsel as to the legality of shares being registered,
             incorporated by reference to Exhibit 10 to Post-Effective Amendment
             No. 35 to the Registrant's Registration STatement on Form N-1A
     
Exhibit 11:  Not Applicable

Exhibit 12:  Not Applicable.

Exhibit 13:  Not Applicable.

Exhibit 14:  Not Applicable.

                                      C-1
<PAGE>

Exhibit 15:  Not Applicable.

Exhibit 16:  Not Applicable.

Exhibit 17:  Not Applicable.

Exhibit 18:  Not Applicable.
    
Exhibit 27:  Financial Data Schedule     

ITEM 25:     PERSON CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT
             ------------------------------------------------------------
    
     At the date of this Post-Effective Amendment, Registrant did not, directly
or indirectly, control any person. Registrant was organized by MassMutual
primarily for the purpose of providing 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; however, where required to do so,
MassMutual and its subsidiaries will vote such shares only in accordance with
instructions received from owners of the contracts pursuant to which sums are
placed in such separate accounts.      
    

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-2



<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-3
<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-4
<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-5
<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-6
<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-7
<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-8
<PAGE>
 
         

ITEM 26:  NUMBER OF HOLDERS OF SECURITIES
- --------  -------------------------------
    
As of September 30, 1997, the number of holders of record of each class of
securities of the Fund was as follows:     

     Title of Class      Number of Record Holders
     --------------      ------------------------
    
     Shares of
     Beneficial                            1     
     Interest

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 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 Investment Company Act of 1940 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 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.

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 

                                      C-9
<PAGE>
 
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 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 Securities Act of
1933, 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 Securities Act of 1933 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-10
<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-11
<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-12
<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-13
<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-14
<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-15
<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-16
<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-17
<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-18
<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 (since 1995), 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).

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-19
<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.
         

                                      C-20
<PAGE>
 
B.   THE SUB-INVESTMENT ADVISER
     --------------------------

Mellon Equity is the Sub-Investment Adviser for Registrant. Mellon Equity
provides investment advisory services, primarily to institutional and employee
benefit customers.

The trustees and executive officers of Mellon Equity their positions and their
other business affiliations and business experience for the past two years are
as follows:

WILLIAM KEITH SMITH, TRUSTEE

The Dreyfus Corporation, 200 Park Avenue, New York, New York  10166  (Mutual
Funds) Vice Chairman (January, 1995 - Present).  Director (August 1994 -
Present).  Access Capital Strategies Corp.,  Boston, Massachusetts (Investment
Advisers) Director (July 1994 - Present).  Shearson Summit Euromanagement, Inc.,
Pittsburgh, Pennsylvania (Mellon Sub Trust) Director, Chairman, CEO, President
(September 1993 -Present).  Shearson Summit Europartners, Inc.,  Pittsburgh,
Pennsylvania (Mellon Sub Trust) Director, Chairman, CEO, President (September
1993 - Present).  Shearson Summit Management,  Pittsburgh, Pennsylvania (Mellon
Sub Trust) Director, Chairman, CEO, President (September 1993 - Present).
Shearson Summit Partners, Inc., Pittsburgh, Pennsylvania (Mellon Sub Trust)
Director, Chairman, CEO, President (September 1993 - Present).  Shearson Venture
Capital, Inc., Pittsburgh, Pennsylvania, (Mellon Sub Trust) Director, Chairman,
CEO, President (September 1993 - Present).  The Boston Company, Inc., Boston,
Massachusetts (Financial Services) Director (May 1993 - Present).  The Boston
Company Asset Management, Inc., One Boston Place, Boston, Massachusetts 02108
(Investment Adviser) Director (June 1993 - Present).  The Boston Company
Overseas Banking Corp., New York, New York (Holding Company) President (June
1993 - December 1995).  The Boston Company Advisors, Inc., Boston, Massachusetts
(Investment Adviser) Director (June 1993 - November 1995).  TBC Securities Co.,
Inc., Boston, Massachusetts (Financial Services) Director and President (June
1993 - Present).  Wellington-Medford II Properties, Inc., Boston, Massachusetts
(Real Estate Sub) Director and President (June 1993 - Present). First Boylston
Corporation, Boston, Massachusetts (Real Estate Sub) Director and President
(June 1993 -October 1995).  Boston Safe Deposit & Trust Company, One Boston
Place,  Boston, Massachusetts 02108 (Banking) Director, Chairman and CEO (May
1993 - Present).  Boston Group Holdings, Inc., Boston, Massachusetts (Holding
Company) Director and Chairman (May 1993 - Present).  The Boston Company, Inc.,
One Boston Place,  Boston, Massachusetts 02108 (Financial Services) Chairman and
CEO (May 1993 - Present).  Mellon Europe Limited,  London England, (Banking)
Director (December 1992 - Present). Laurel Capital Advisors, Suite 3435, One
Mellon Bank Center, Pittsburgh, Pennsylvania 15258 (Investment Adviser) Trustee
(December 1991 - Present).  Mellon Bond Associates, Pittsburgh, Pennsylvania
(Investment Adviser) Trustee (December 1991 - Present).  Mellon Global Investing
Corp., One Mellon Bank Center, Pittsburgh, Pennsylvania 15258 (Mellon Sub Trust)
Director (October 1991 - Present). Mellon Financial Services Corp. #17, One
Executive Drive, Fort Lee, New Jersey 07024 (Mellon Sub Trust) Director and
Chairman (June 1991 - Present).  Mellon Accounting Services, Inc., Suite 3102, 3
M Mellon Bank Center, Pittsburgh, Pennsylvania 15258 (Mellon Sub Trust) Director
(March 1991 - Present). MGIC-UK Ltd., London England EC2M 4LR (Investment
Adviser) Director (March 1991 - Present). Pareto Partners, London, England
(Investment Adviser) Partner Rep. (November 1990 - Present).  Mellon Capital
Management Corp., 595 Market Street, San Francisco, California 94105 (Investment
Adviser) Director (December 1987 - Present).  Franklin Portfolio Associates
Trust, One Post Office Square,  Boston, 

                                     C-21
<PAGE>
 
Massachusetts 02109 (Investment Adviser) Trustee (December 1987 - Present).
Mellon Financial Company, One Mellon Bank Center, Pittsburgh, Pennsylvania 15258
(Mellon Sub Debt) Director and Chairman (August 1987 - Present). Mellon Bank
Corporation, One Mellon Bank Center, Pittsburgh, Pennsylvania 15258 (Banking)
Director and Vice Chairman (July 1987 -Present). Mellon Bank, N.A., One Mellon
Bank Center, Pittsburgh, Pennsylvania 15258 (Banking) Director and Vice Chairman
(July 1987 -Present).
    
CHRISTOPHER MARK CONDRON, TRUSTEE AND CHAIRMAN

Certus Asset Advisors Corporation, One Bush Street, San Francisco, California
94104 (Investment Adviser) Director (1995 - Present). Access Capital Strategies
Corporation, Boston, Massachusetts (Investment Adviser) Director (1995 -
Present). Mellon Capital Management Corporation, 545 Market Street, San
Francisco, California 94105 (Investment Adviser) Director (1995 - Present).
Mellon Bank, N.A., One Mellon Bank Center, Pittsburgh, Pennsylvania 15256
(Banking) Vice Chairman (1994 - Present). The Boston Company Asset Mgmt. Inc., 
One Boston Place, Boston, Massachusetts 02108 (Investment Adviser) Chairman
Director (1995 - Present). Franklin Portfolio Associates Trust, Suite 3360, One
Post Office Square, Boston, Massachusetts 02109 (Investment Adviser) Trustee
(1995 - Present). The Boston Company, Inc., One Boston Place, Boston,
Massachusetts 02108 (Financial Services) Director (1993 - Present). Boston Safe
Deposit & Trust Company, One Boston Place, Boston, Massachusetts 02108 (Banking)
President (1989 - Present). Laurel Capital Advisors, Pittsburgh, Pennsylvania
(Investment Adviser) Trustee (1993 - Present). Pareto Partners, London, England
(Investment Adviser) Partner Rep. (March 1991 - Present). Mellor Bond 
Associates, Suite 4135, One Mellon Bank Center, Pittsburgh, Pennsylvania 15258
(investment adviser) Trustee (1995 - Present). Mellon Bank Corporation, One
Mellon Bank Center, Pittsburgh, Pennsylvania 15258 (banking) Vice Chairman 
(1994 - Present).    
    
RONALD PHILIP O'HANLEY, TRUSTEE AND CHAIRMAN

Certus Asset Advisers Corporation, One Bush Street, San Francisco, California 
94104 (investment Adviser) Director (February 1997 - Present). Mellon Capital 
Management Corporation, 545 Market Street, San Francisco, California 94195 
(investment adviser) Director (February 1997 - Present). The Boston Company 
Asset Management Inc., One Boston Place, Boston, Massachusetts 02108 (investment
adviser) Director (February 1997 - Present). Boston Safe Advisors, Inc., Boston,
Massachusetts (investment adviser) Director (February 1997 - Present). 
Mellon-France Corporation, Pittsburgh, Pennsylvania (investment Adviser) 
Director (March 1997 - Present). Franklin Portfolio Holdings, Inc., Boston, 
Massachusetts (holding company) Director (March 1997 - Present). Laurel Capital
Advisors, Pittsburgh, Pennsylvania (investment adviser) Trustee (March 1997 - 
Present). McKinsey & Company, Inc., Boston, Massachusetts (consulting) Partner 
(1986 - 1997).     

JAMES MILTON GOCKLEY, TRUSTEE AND ASSISTANT GENERAL COUNSEL
    
Dreyfus Financial Services Corp., New York, New York (mutual funds) Vice 
President (September 1996 - Present). Franklin Portfolio Associates Trust, Suite
3360, One Post Office Square, Boston, Massachusetts 02109 (investment adviser) 
Vice President and Chief Legal Officer (November 1995 - Present). Mellon 
Securities Trust Company, New York, New York (trust company) Vice President 
(September 1995 - Present). Dreyfus Investment Services Corporation, Pittsburgh,
Pennsylvania (brokerage services) Vice President (August 1995 - Present). Laurel
Capital Advisers, Pittsburgh, Pennsylvania (investment adviser) Vice President 
(August 1995 - Present). Boston Safe Deposit and Trust Company, One Boston 
Place, Boston, Massachusetts 02108 (financial sercies) General Counsel (August 
1995 - Present). Mellon Accounting Services, Inc. Suite 3102, 3 Mellon Bank 
Center, Pittsburgh, Pennsylvania 15258 (Mellon Trust subsidiary) Vice President
(August 1995 - Present). Mellon Bond Associates, Pittsburgh, Pennsylvania
(Mellon Trust subsidiary) Trustee and Vice President (1995 - Present). Mellon
Capital Management Corporation, 545 Market Street, San Francisco, California
94105 (investment adviser) Vice President (August 1995 - Present). Mellon-France
Corporation Pittsburgh, Pennsylvania (investment adviser) Vice President (August
1995 - Present). Mellon Bank Corporation, One Mellon Bank Center, Pitsburgh,
Pennsylvania 15258 (bank holding company) Assistant General Counsel (October
1992 - Present). Mellon Bank, N.A., One Mellon Bank Center, Pittsburgh,
Pennsylvania 15258 (banking) Assistant Secretary (April 1990 - Present).    

EXECUTIVE OFFICERS:

WILLIAM PAUL RYDELL, TRUSTEE, PRESIDENT AND CHIEF EXECUTIVE OFFICER
    
JOAN ANTONIAZZI GREEN, TREASURER 

Mellon Bond Associates, Pittsburgh, Pennsylvania (investment adviser) Treasurer 
(October 1996 - Present). Mellon Capital Management Corporation, 545 Market 
Street, San Francisco, California 94195 (investment adviser) Treasurer (August 
1994 - Present). Mellon Securities Trust Company, New York, New York (trust 
company) Assistant Treasurer (March 1996 - Present). Mellon Bank, N.A., One 
Mellon Bank Center, Pittsburgh, Pennsylvania 15258 (banking) Finance (May 1984 -
Present).     

                                     C-22
<PAGE>
 
Present). Shearson Summit Management Inc., Pittsburgh, Pennsylvania (Mellon Sub
Trust) Director, VP and Treasurer (September 1993 - Present). Shearson Summit
Partners Inc., Pittsburgh, Pennsylvania (Mellon Sub Trust) Director, VP and
Treasurer, Pittsburgh, Pennsylvania (Mellon Sub Trust) Director VP and Treasurer
(September 1993 -Present). Shearson Venture Capital Inc., Pittsburgh,
Pennsylvania (Mellon Sub Trust) Director, VP and Treasurer (September 1993 -
Present). Mellon Bond Associates, One Mellon Bank Center, Pittsburgh,
Pennsylvania 15258 (Investment Adviser) Treasurer (September 1993 - Present).
Laurel Capital Advisors, One Mellon Bank Center, Pittsburgh, Pennsylvania 15258
(Investment Adviser) Treasurer (September 1993 - Present). Mellon Securities
Trust Company, 120 Broadway, New York 10271 (Mellon Sub Trust) Treasurer (July
1993 - Present).

ROBERT ALEXANDER WILK, SENIOR VICE PRESIDENT AND PORTFOLIO MANAGER

JOHN ROBERT O'TOOLE, SENIOR VICE PRESIDENT AND SENIOR PORTFOLIO

STEVEN ANTHONY FALCI, SENIOR VICE PRESIDENT AND SENIOR PORTFOLIO MANAGER

NYNEX Corporation, New York, New York (Pension Investment) Managing Director,
Portfolio Manager (April 1986 - March 1994).
    
RONALD PAUL GALA, SENIOR VICE PRESIDENT AND PORTFOLIO MANAGER     

JOHN WRAY KELLER, DIRECTOR OF EQUITY TRADING

Virginia Retirement System, Richmond Virginia (Pension Management) Equity Trader
(August 1988 -February 1994).

         

ITEM 29:         PRINCIPAL UNDERWRITERS
- --------         ----------------------

Not Applicable.

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 by Registrant at 1295 State Street,
Springfield, Massachusetts 01111 by Mellon Equity Associates at 500 Grant
Street, Pittsburgh, Pennsylvania 15258, by First Data Investor Services Group,
Inc.  at 4400 Computer Drive Westborough, Massachusetts 01581 and by Boston Safe
Deposit and Trust Company at One Boston Place, Boston, Massachusetts 02108.

ITEM 31:         MANAGEMENT SERVICES
- --------         -------------------

Not Applicable.
- ---------------

ITEM 32:         UNDERTAKINGS
- --------         ------------
    
Not Applicable     

                                     C-23
<PAGE>
 
                                  SIGNATURES
    
Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, Registrant certifies that it has duly caused this Amendment
to the Registration Statement to be signed on its behalf by the undersigned,
thereto duly authorized, in the City of Springfield and in the Commonwealth of
Massachusetts on the 22nd day of October, 1997.     

                              MML SERIES INVESTMENT FUND


                              By:   /s/ Hamline C. Wilson
                                  ---------------------------------------------
                                  Hamline C. Wilson
                                  Vice President and Chief Financial Officer

Pursuant to the requirements of the Securities Act of 1933, this Amendment to
the Registration Statement has been signed below by the following persons in the
capacities and on this 14th day of  February, 1997.

     SIGNATURE                           TITLE
     ---------                           -----
    
     /s/ Gary E. Wendlandt               Trustee      
     --------------------------
     Gary E. Wendlandt

                *                        Trustee
     --------------------------
     Richard G. Dooley


                *                        Trustee
     ---------------------------
     Mary E. Boland

 
                *                        Trustee   
     ---------------------------
     Ronald J. Abdow


                *                        Trustee
     ---------------------------         
     Charles J. McCarthy


                *                        Trustee
     ---------------------------
     John H. Southworth

                                     C-24
<PAGE>
 
     SIGNATURE                           TITLE
     ---------                           -----

    
                  *                      President      
     ---------------------------
     Stuart H. Reese                     (Principal Executive Officer)

 
       /s/ Hamline C. Wilson             Chief Financial Officer
     ----------------------------                                    
     Hamline C. Wilson                   (Principal Financial &
                                         Accounting Officer)

     *By:/s/ Stephen L. Kuhn
         -------------------
         Stephen L. Kuhn
         Attorney-in-Fact

                                    NOTICE
    
THE NAME MML SERIES INVESTMENT FUND IS THE DESIGNATION OF THE TRUSTEES UNDER AN
AGREEMENT AND DECLARATION OF TRUST DATED DECEMBER 19, 1984, AS AMENDED FROM TIME
TO TIME. THE OBLIGATIONS OF MML 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 MML TRUST, BUT ONLY THE PROPERTY OF THE RELEVANT SERIES 
OF MML TRUST SHALL BE BOUND.     

                                     C-25
<PAGE>
 
                               INDEX TO EXHIBITS


EXHIBIT NO.         TITLE OF EXHIBIT
- -----------         ----------------
    
5(a)      Investment Management Agreement between MML Series Investment Fund
          (the "Trust"), on behalf of MML Equity Index Fund (the "Fund"), and
          Massachusetts Mutual Life Insurance Company ("MassMutual").

5(b)      Investment Sub-Advisory Agreement between MassMutual and Mellon Equity
          Associates.

9         Accounting Services Agreement betweeen the Trust, on behalf of the 
          Fund, and First Data Investor Services Group, Inc.
 
27        Financial Data Schedule      

                                     C-26

<PAGE>
 
                                                                    Exhibit 5(a)

                        INVESTMENT MANAGEMENT AGREEMENT
         
     This INVESTMENT MANAGEMENT AGREEMENT (the "Agreement"), dated as of
April 25, 1997 by and between MML SERIES INVESTMENT FUND (the "Trust") on behalf
of MML EQUITY INDEX FUND (the "Fund") AND MASSACHUSETTS MUTUAL LIFE INSURANCE
COMPANY (the "Adviser").     

     WHEREAS, the Trust, on behalf of the Fund, and the Adviser wish to enter
into an agreement setting forth the terms on which the Adviser will (1) perform
certain investment management services for the Fund, (2) perform administrative
functions relating to the Fund, and (3) 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:

     1.   INVESTMENT MANAGEMENT SERVICES TO BE RENDERED TO THE FUND.  The Fund
          ---------------------------------------------------------           
     hereby engages the Adviser to act as investment adviser for and to manage
     the investment and reinvestment of the assets of the Fund, subject to such
     general or specific instructions as may be given by the Board of Trustees
     of the Trust. The Adviser hereby agrees, at its own expense, to render the
     services and to assume the obligations of investment manager.

     2.   SUB-ADVISORY AGREEMENTS.  The Adviser may enter into sub-advisory
          -----------------------                                          
     agreements with persons ("Sub-Advisers") pursuant to which the Adviser
     delegates any or all of its functions hereunder to one or more Sub-Advisers
     provided that a majority of the Trustees of the Trust who are not
     interested persons of the Trust or the Adviser or any Sub-Adviser, approve
     the agreement and provided further, that, to the extent required by the
     Investment Company Act of 1940 and the Rules and Regulations thereunder, a
     majority of the outstanding voting securities of the Fund must also approve
     the agreement. The Adviser shall pay all compensation of any such Sub-
     Advisers and will have the right to terminate the services of any Sub-
     Adviser at any time on no more than 60 days' notice, subject to the
     approval of the Board of Trustees, and thereupon shall at such time assume
     the responsibilities of such Sub-Adviser unless and until a successor Sub-
     Adviser is selected.

     3.   ADMINISTRATIVE SERVICES TO BE PROVIDED AND EXPENSES TO BE ASSUMED BY
          --------------------------------------------------------------------
     THE ADVISER.  Until the termination of the employment of the Adviser as
     -----------                                                            
     investment manager for the Fund, the Adviser will provide, or provide for,
     all services required for the administration of the Trust and the Fund, and
     will assume all expenses of the Trust and the Fund other than those
     expenses referred to in the following paragraph.
<PAGE>
 
The Adviser shall not be obligated to pay and the Fund or the Trust shall pay:
(1) taxes and corporate fees payable to governmental agencies; (2) brokerage
commissions and other capital items payable in connection with the purchase or
sale of the Fund's investment; (3) interest on account of any borrowings by the
Fund; (4) fees and expenses of the Trust's Trustees who are not interested
persons (as defined in the Investment Company Act of 1940) of the Adviser or of
the Trust; (5) fees and expenses of the Trust's Advisory Board Members; (6) fees
payable to the Trust's certified independent public accountants; and (7) any
required trademark licensing fees.

In placing portfolio transactions for the Fund, the Adviser will follow such
practices as may from time to time be set forth in the Trust's most recent
prospectus or specified by its Board of Trustees.
    
4.   COMPENSATION TO BE PAID BY THE FUND TO THE ADVISER.  For the services
     --------------------------------------------------                   
rendered hereunder, the Fund shall pay to the Adviser as of the last day of each
calendar quarter a fee at the annual rate of: .40% of the first $100,000,000 of
average daily net asset value of the Fund determined as of the close of the New
York Stock Exchange on each day the Exchange is open for trading; .38% of the
next $150,000,000 and .36% on any net assets thereafter or such lesser amount
as MassMutual may from time to time inform the Fund, on a date prior to the
accrual of such fee, that MassMutual chooses to change the Fund.     

5.   SERVICES OF THE ADVISER TO THE TRUST AND THE FUND NOT EXCLUSIVE.  The
     ---------------------------------------------------------------      
services of the Adviser to the Trust and the Fund under this Agreement are not
to be deemed exclusive and the Adviser shall be free to render similar services
to others.

6.   USE OF NAME BY THE TRUST AND THE FUND.  The Trust and the Fund
     -------------------------------------                         
recognize the Adviser's control of the initials "MML" and agrees that its right
to use these initials is non-exclusive and can be terminated by the Adviser at
any time.  The use of such initials will automatically be terminated if at any
time the Adviser or a wholly-owned subsidiary of the Adviser ceases to be
investment manager for the Fund.  If, at any time, the use of the initials "MML"
is terminated, the continuance of this Agreement will be submitted to
shareholders of the Fund at a meeting specifically called for that purpose.

7.   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 Adviser, and that
the Adviser, its directors, officers, employees or agents maybe interested in
the Fund as shareholders or otherwise.

                                      -2-
<PAGE>
 
8.   RECORDS AND CONFIDENTIALITY.  All records pertaining to the operation
     ---------------------------                                          
and administration of the Trust and the Fund (whether prepared by the Adviser or
supplied to the Adviser 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 Adviser 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 Adviser 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 Adviser shall submit to all regulatory and
administrative bodies having jurisdiction over the operations of the Adviser 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.

9.   LIABILITY REGARDING INVESTMENT MANAGEMENT.  In the absence of willful
     -----------------------------------------                            
misfeasance, bad faith or gross negligence in the performance of its obligations
and duties under this Agreement, or of reckless disregard of such obligations
and duties, neither the Adviser nor any of its officers, directors, employees or
agents shall be subject to liability for any act or omission in the course of,
or connected with, rendering services or performing its obligations hereunder.

10.  TERMINATION AND AMENDMENT.  This Agreement is effective as of the date
     -------------------------                                             
first written above and will continue in effect from year to year after the date
hereof, as long as it is specifically approved at least annually by vote of the
Board of Trustees of the Trust including the vote of a majority of such Trustees
who are not interested persons (as defined in the Investment Company Act of
1940) of the Adviser or of the Fund; provided, however, that (1) this Agreement
may at any time be terminated by the Trust on 60 days' written notice to the
Adviser without the payment of any penalty either by vote of the Board of
Trustees of the Trust or by the vote of a majority of the outstanding voting
securities of the Fund (as defined in the Investment Company Act of 1940); (2)
this Agreement shall immediately terminate in the event of its assignment
(within the meaning of the Investment Company Act of 1940); and (3) this
Agreement may be terminated by the Adviser on 60 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.

This Agreement may be amended at any time by mutual consent of the parties,
provided that such consent on the part of the Fund shall have been approved at a
meeting by the vote of a majority of the outstanding voting securities of the
Fund and by the vote of a majority of the Trustees of the Trust who are not
interested persons of the Trust or interested persons of the Adviser.

                                      -3-
<PAGE>
 
11.  OBLIGATION OF THE TRUST.  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 Agreement is executed on
behalf of the Trustees as Trustees of the Trust and not individually, and that
the obligations of this Agreement are not binding upon any of the Trustees or
shareholders individually, but are binding only upon the assets and property of
the Fund.

                                      -4-
<PAGE>
 
  IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed on the day and year first above written.


                       MML SERIES INVESTMENT FUND
                       on behalf of MML EQUITY INDEX FUND
                           
                       By:  /s/ Hamline C. Wilson
                           ---------------------------------
                       Its: Vice President and CFO 
                            --------------------------------

                       MASSACHUSETTS MUTUAL LIFE
                       INSURANCE COMPANY


                       By:  /s/ Stuart H. Reese
                           ---------------------------------
                       Its:  
                            --------------------------------     

                                      -5-

<PAGE>
 
                                                                    Exhibit 5(b)

                       INVESTMENT SUB-ADVISORY AGREEMENT

                  MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY
                               1295 State Street
                       Springfield, Massachusetts 01111
    
                                                              April 25, 1997
     
Mellon Equity Associates
500 Grant Street
Pittsburgh, PA 15258

Dear Sirs:

     MML Equity Index Fund (the "Fund"), a series of MML Series Investment 
Fund, a Massachusetts business trust (the "Trust"), desires to employ its
capital by investing and reinvesting the same in investments of the type and in
accordance with the limitations specified in the Fund's Prospectus and Statement
of Additional Information as from time to time in effect, copies of which
(including any amendments thereto) have been and will be submitted to Mellon
Equity Associates, a Pennsylvania business trust ("Mellon Equity"), and in such
manner and to such extent as from time to time may be approved by the Trust's
Board of Trustees. The Fund employs Massachusetts Mutual Life Insurance Company
("MassMutual") pursuant to a written agreement (the "Management Agreement"), a
copy of which has been furnished to Mellon Equity. MassMutual desires to employ
Mellon Equity to act as the Fund's investment sub-adviser.

     In this connection, it is understood that from time to time Mellon Equity
will employ or associate with itself such person or persons as Mellon Equity may
believe to be particularly fitted to assist Mellon Equity in the performance of
this Agreement.  The compensation of such person or persons shall be paid by
Mellon Equity and no obligation may be incurred on the Fund's behalf in any such
respect.

     Subject to the supervision and approval of MassMutual, Mellon Equity will
provide investment management of the Fund's portfolio in accordance with the
Fund's investment objective, policies and restrictions as stated in the Fund's
Prospectus and Statement of Additional Information as from time to time in
effect.  In connection therewith, Mellon Equity will supervise the Fund's
investments and, if appropriate, the sale and reinvestment of the Fund's assets.
Mellon Equity is authorized to invest the Fund's assets in securities issued by
Mellon Bank Corporation, to the extent required or permitted by the Fund's
investment objective, policies and restrictions, and to the extent permitted by
the U.S. Securities and Exchange Commission or other applicable authorities.
Mellon Equity will furnish to 
<PAGE>
 
MassMutual or the Fund such statistical information, with respect to the
investments that the Fund may hold or contemplate purchasing, as MassMutual or
the Fund may reasonably request. The Fund and MassMutual wish to be informed of
important developments materially affecting the Fund's portfolio and shall
expect Mellon Equity, on its own initiative, to furnish to the Fund or
MassMutual from time to time such information as Mellon Equity may believe
appropriate for this purpose.
    
     Mellon Equity shall vote, in its discretion and in accordance with its 
fudiciary duty, all proxies solicited by or with respect to issuers of 
securities which are included in the Fund.     

     Mellon Equity shall exercise its best judgment in rendering the services to
be provided hereunder, and MassMutual agrees, as an inducement to Mellon
Equity's undertaking the same, that Mellon Equity shall not be liable hereunder
for any error of judgment or mistake of law or for any loss suffered by the Fund
or MassMutual, provided that nothing herein shall be deemed to protect or
purport to protect Mellon Equity against any liability to MassMutual, the Fund
or the Fund's security holders to which Mellon Equity would otherwise be subject
by reason of willful misfeasance, bad faith or gross negligence in the
performance of Mellon Equity's duties hereunder, or by reason of Mellon Equity's
reckless disregard of its obligations and duties hereunder.
    
     In consideration of the services rendered pursuant to this Agreement,
MassMutual will pay Mellon Equity, on the tenth business day of each month,
out of the management fee it receives and only to the extent thereof, a fee
calculated daily and paid monthly at the annual rate of .09% of the first
$100,000,000 of the average daily net asset value of the Fund; .07% of the next
$150,000,000; and .05% on any net assets thereafter, for the preceding month.
So long as Mellon Equity is the sole investment sub-adviser for the Fund, the
fees for the custody services for the Fund, which will be provided by Boston
Safe Deposit and Trust Company, will be deducted from Mellon Equity's fees
hereunder.     

     Net asset value shall be computed on such days and at such time or times as
described in the Fund's then-current Prospectus and Statement of Additional
Information.  The fee for the period from the date hereof to the end of the
month hereof shall be pro-rated according to the proportion which such period
bears to the full monthly period, and upon any termination of this Agreement
before the end of any month, the fee for such part of a month shall be pro-rated
according to the proportion which such period bears to the full monthly period.
For the purpose of determining fees payable to Mellon Equity, the value of the
Fund's net assets shall be computed in the manner specified in the Trust's
charter documents or the Fund's Prospectus and Statement of Additional
Information for the computation of the value of the Fund's net assets.

     Mellon Equity will bear all expenses in connection with the performance of
its services under this Agreement.  All other expenses to be incurred in the
operation of the Fund (other than those borne by MassMutual) will be borne by
the Fund, except to the extent specifically assumed by Mellon Equity.

                                      -2-
<PAGE>
 
     MassMutual understands that Mellon Equity now acts, and that from time to
time hereafter may act, as investment adviser to one or more other investment
companies and fiduciary or other managed accounts, and MassMutual has no
objection to Mellon Equity so acting. When purchase or sale of securities of the
same issuer is suitable for the investment objectives of the Fund and one or
more other investment companies or accounts managed by Mellon Equity which track
an equity index and have available funds for investment, such purchases or sales
may and 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 or sold, the main factors Mellon Equity will consider 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. Mellon Equity believes that the ability of the Fund to participate
in larger volume transactions will, in most cases, produce better execution for
the Fund although it is recognized that in some cases this procedure may
adversely affect the price paid or received by the Fund or the size of the
position obtainable for or disposed of by the Fund.
    
     In allocating brokerage transactions for the Fund, Mellon Equity shall seek
to obtain the best execution of orders at the most favorable net price. Subject
to this determination, Mellon Equity may consider, among other things, the sale
of shares of the Fund as a factor in the selection of broker-dealers to execute
portfolio transactions for the Fund; provided, Mellon Equity may not consider
the provision of brokerage research services (as such term is defined in Section
28(e) of the Securities Exchange Act of 1934, as amended) in allocating
brokerage transactions for the Fund.     

     In addition, it is understood that the persons employed by Mellon Equity to
assist in the performance of its duties hereunder will not devote their full
time to such services and nothing contained herein shall be deemed to limit or
restrict Mellon Equity's rights or the right of any of its affiliates to engage
in and devote time and attention to other businesses or to render services of
whatever kind or nature, provided that such activities will not adversely affect
or otherwise impair the performance of Mellon Equity's duties and obligations
hereunder.
    
     This Agreement shall continue until April 30, 1999, and thereafter shall
continue automatically for successive annual periods ending on April 30, of 
each year, provided such continuance is specifically approved at least annually
by (i) the Trust's Board of Trustees or (ii) vote of a majority (as defined in
the Investment Company Act of 1940, as amended) of the Fund's outstanding voting
securities, provided that in either event its continuance also is approved by a
majority of the Trust's Board members who are not "interested persons" (as
defined in said Act) of any party to this Agreement, by vote cast in person at a
meeting called for the purpose of voting on such approval. This Agreement is
terminable without penalty (i) by MassMutual upon 60 days' written notice to
Mellon Equity, (ii) by the Trust's Board of Trustees or by vote of the holders
of a majority of the Fund's outstanding voting securities upon 60 days' written
notice to Mellon Equity, or (iii) by Mellon     

                                      -3-
<PAGE>
 
Equity upon not less than 90 days' written notice to the Fund and MassMutual.
This Agreement also will terminate automatically in the event of its assignment
(as defined in said Act). In addition, notwithstanding anything herein to the
contrary, if the Management Agreement terminates for any reason, this Agreement
shall terminate effective upon the date the Management Agreement terminates.

     Mellon Equity agrees that all records pertaining to the operation and
administration of the Trust and the Fund (whether prepared by Mellon Equity or
supplied to Mellon Equity by MassMutual, 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 Mellon Equity's possession 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 Mellon Equity 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. Mellon Equity shall submit
to all regulatory and administrative bodies having jurisdiction over the
operations of Mellon Equity, MassMutual 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.

     Mellon Equity agrees that neither MassMutual, the Trust, the Fund nor
Mellon Equity are partners of or joint venturers with each other, and nothing
herein shall be construed so as to make them such partners or joint venturers or
impose any liability as such on any of them.

     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 Agreement is executed on behalf of the Trustees as Trustees of
the Trust and not individually, and that the obligations of this Agreement are
not binding upon any of the Trustees or shareholders individually, but are
binding only upon the assets and property of the Fund.

                                      -4-
<PAGE>
 
     If the foregoing is in accordance with your understanding, will Mellon
Equity kindly so indicate by signing and returning to MassMutual the enclosed
copy hereof.

                              Very truly yours,

                              MASSACHUSETTS MUTUAL
                              LIFE INSURANCE COMPANY

                                  
                              By: /s/ Stuart H. Reese
                                  ---------------------------
                              Name: Stuart H. Reese      
                              Title:

Accepted and Agreed to By:

MELLON EQUITY ASSOCIATES
    
By: /s/ William P. Rydell
   -------------------------
Name: William P. Rydell
Title: President and CEO
       April 25, 1997      

Accepted and Agreed to By:

MML SERIES INVESTMENT FUND, on behalf of MML Equity Index Fund

    
By: /s/ Hamline C. Wilson
   -------------------------
Name: Hamline C. Wilson
Title: Vice President and CFO      

                                      -5-

<PAGE>
 
                         ACCOUNTING SERVICES AGREEMENT


         THIS ACCOUNTING SERVICES AGREEMENT is made as of April 28, 1997 (the
"Agreement"), by and between MML Series Investment Fund, a Massachusetts
business trust (the "Company") on behalf of its series, MML Equity Index Fund
(the "Fund"), Massachusetts Mutual Life Insurance Company ("MassMutual") and
First Data Investor Services Group, Inc., a Massachusetts corporation ("FDISG").

         WHEREAS, the Company is registered as an open-end management investment
company under the Investment Company Act of 1940, as amended (the "1940 Act");
and

         WHEREAS, the Company wishes to retain FDISG to provide certain fund
accounting services with respect to the Fund and FDISG is willing to furnish
such services;

                                  WITNESSETH:

         NOW, THEREFORE, in consideration of the premises and mutual covenants
herein contained, it is agreed between the parties hereto as follows:

         1. Appointment. The Company hereby appoints FDISG to provide certain
            -----------
fund accounting and financial administrative services required by the Company
for the Fund for the period and on the terms set forth in this Agreement. FDISG
accepts such appointment and agrees to furnish the services herein set forth in
return for the compensation as provided in Section 4 of this Agreement. In the
event that the Company decides to retain FDISG to act as fund accountant
hereunder with respect to one or more portfolios other than the Funds, the
Company shall notify FDISG in writing. If FDISG is willing to render such
services, it shall notify the Company in writing whereupon such portfolio shall
become a Fund hereunder.

         2. Delivery of Documents. The Company has furnished FDISG with copies
            ---------------------
properly certified or authenticated of each of the following:

            (a)  Resolutions of the Company's Board of Trustees authorizing
FDISG to provide certain fund accounting services to the Company and approving
this Agreement;

            (b)  The Company's Declaration of Trust (the "Articles") filed with
the Commonwealth of Massachusetts and all amendments thereto;

            (c)  The Company's By-Laws and all amendments thereto (the "By-
Laws");

            (d)  The Investment Advisory Agreement between MassMutual (the
"Adviser") and the Company (the "Advisory Agreement");

            (e)  The Custody Agreement between Boston Safe Deposit and Trust
Company (the "Custodian") and the Company (the "Custody Agreement");

            (f)  Post-Effective Amendment No. 35 under the Securities Act of
1933 and Amendment No. 20 under the Investment Company Act of 1940 (the "1940
Act") to the 
<PAGE>
 
Company's Registration Statement on Form N-1A (the "Registration Statement")
under the Securities Act of 1933 and under the 1940 Act (File Nos.2-39334 and
811-2224), as filed with the Securities and Exchange Commission (the "SEC") on
February 14, 1997, relating to shares of beneficial interest of the Fund (the
"Shares"), and all amendments thereto; and

            (g)  The Fund's most recent prospectus and statement of additional
information and all amendments and supplements thereto (collectively, the
"Prospectuses").

         The Company will furnish FDISG from time to time with copies, properly
certified or authenticated, of all amendments of or supplements to the
foregoing, if any. Furthermore, the Company will provide FDISG with any other
documents that FDISG may reasonably request and will notify FDISG as soon as
possible of any matter materially affecting the performance by FDISG of its
services under this Agreement.

         3. Services and Duties. Subject to the supervision and control of the
            -------------------
Company, FDISG undertakes to provide the services described in Schedule C to
this Agreement, including but not limited to the following specific services:

            (a)  Accounting and bookkeeping services (including the maintenance
of such accounts, books and records of the Company as may be required by Section
31(a) of the 1940 Act and the rules thereunder);

            (b)  Internal auditing;

            (c)  Valuing the assets of each Fund and calculating the net asset
value of the shares of the Fund consistent with the Registration Statement at
the close of trading on the New York Stock Exchange ("NYSE") on each day on
which the NYSE is open for trading, and at such other times as the Board of
Directors may reasonably request;

            (d)  Accumulating information for and, subject to approval by the
Company's Treasurer, preparing reports to the Company's shareholders of record
and the SEC including, but not necessarily limited to, Annual Reports and Semi-
Annual Reports on Form N-SAR;

            (e)  Assisting the Adviser, at the Adviser's request, in monitoring
and developing compliance procedures for the Company which will include, among
other matters, procedures to assist the Adviser in monitoring compliance with
each Fund's investment objective, policies, restrictions, tax matters and
applicable laws and regulations; and

            (f)  Preparing and furnishing the Company (at the Company's request)
with performance information (including yield and total return information)
calculated in accordance with applicable U.S. securities laws and reporting to
external databases such information as may reasonably be requested.

         In performing its duties under this Agreement, FDISG: (a) will act in
accordance with the Articles, By-Laws, Prospectuses and with the instructions
and directions of the Company and will conform to and comply with the
requirements of the 1940 Act and all other applicable Federal or state laws and
regulations; and (b) will consult with legal counsel to the Company, as
necessary 

                                       2
<PAGE>
 
and appropriate. Furthermore, FDISG shall not have or be required to have any
authority to supervise the investment or reinvestment of the securities or other
properties which comprise the assets of the Company or any of its Funds and
shall not provide any investment advisory services to the Company or any of its
Funds.

         4. Compensation and Allocation of Expenses.
            ---------------------------------------

            (a)  For the services to be rendered, the facilities to be furnished
and the payments to be made by FDISG, as provided for in this Agreement,
MassMutual, on behalf of the Fund, will pay FDISG on the first business day of
each month a fee for the previous month as set forth in the Fee Schedule
attached hereto as Schedule A. For the purposes of calculating the fees
described herein, the Fund's average daily net assets will be deemed to be the
average daily value of the Fund's total assets minus the sum of the Fund's
liabilities (excluding the aggregate liquidation preference on the outstanding
shares of the Fund's auction rate preferred stock and accumulated dividends, if
any, thereon). Fees for the period from the date the Registration Statement is
declared effective by the SEC to the end of the month during which the
Registration Statement is declared effective shall be prorated according to the
proportion that such period bears to the full monthly period.

            (b)  MassMutual shall compensate FDISG for its services rendered
pursuant to this Agreement in accordance with the fees set forth above. Such
fees do not include out-of-pocket disbursements of FDISG for which FDISG shall
be entitled to bill separately. Reasonable out-of-pocket disbursements shall
include, but shall not be limited to, the items specified in Schedule B annexed
hereto and incorporated herein. Schedule B may be modified by FDISG upon not
less than thirty days' prior written notice to MassMutual.

            (c)  FDISG shall not be required to pay any of the following
expenses incurred by the Company: membership dues in the Investment Company
Institute or any similar organization; transfer agency expenses; investment
advisory expenses; costs of printing and mailing stock certificates,
prospectuses, reports and notices; interest on borrowed money; brokerage
commissions; taxes and fees payable to Federal, state and other governmental
agencies; fees of Trustees of the Company who are not affiliated with FDISG;
outside auditing expenses; outside legal expenses; or other expenses not
specified in this Section 4 which may be properly payable by the Company.

            (d)  FDISG will bill MassMutual as soon as practicable after the end
of each calendar month for out-of-pocket disbursements, and said billings will
be detailed in accordance with this Section and Schedule B. MassMutual will pay
to FDISG the amount of such billing within 30 days of such billing. FDISG may
charge a service fee equal to the lesser of (i) one and one half percent (1-
1/2%) per month or (ii) the highest interest rate legally permitted on any fees
not paid within 30 days of receipt of invoice.

            (e)  Upon any termination of this Agreement before the end of any
month, the fee for such period shall be prorated according to the proportion
which such period bears to the full month period. For purposes of determining
fees payable to FDISG, the value of each Fund's net assets shall be computed at
the time and in the manner specified in the most recent Prospectuses.


                                       3
<PAGE>
 
            (f)  The Company acknowledges that the fees that FDISG charges
MassMutual under this Agreement reflect the allocation of risk between the
parties, including the limitations on liability in Section 5. Modifying the
allocation of risk from what is stated here would affect the fees that FDISG
charges, and in consideration of those fees, the Company agrees to the stated
allocation of risk.

            (g)  FDISG will from time to time employ or associate itself with
such person or persons as FDISG may believe to be particularly suited to assist
it in performing services under this Agreement. Such person or persons may be
officers and employees who are employed by both FDISG and the Company. The
compensation of such person or persons shall be paid by FDISG and no obligation
shall be incurred on behalf of the Company in such respect.

         5. Limitation of Liability
            -----------------------

            (a)  FDISG, its directors, officers, employees, shareholders and
agents shall not be liable for any error of judgment or mistake of law or for
any loss suffered by the Company or a Fund in connection with the performance of
this Agreement, except a loss resulting from willful misfeasance, bad faith, or
negligence on the part of FDISG in the performance of its obligations and duties
under this Agreement.

            (b)  Notwithstanding any provision in this Agreement to the
contrary, FDISG's cumulative liability (to the Company) for all losses, claims,
suits, controversies, breaches, or damages for any cause whatsoever (including
but not limited to those arising out of or related to this Agreement) and
regardless of the form of action or legal theory shall not exceed $1,000,000;
provided, however, that the above-referenced cap shall not apply to any losses
resulting from gross negligence on the part of FDISG in the performance of its
obligations under this Agreement.

            (c)  Each party shall have the duty to mitigate damages for which
the other party may become responsible.

            (d)  NOTWITHSTANDING ANYTHING IN THIS AGREEMENT TO THE CONTRARY, IN
NO EVENT SHALL FDISG, ITS AFFILIATES OR ANY OF ITS OR THEIR DIRECTORS, OFFICERS,
EMPLOYEES, AGENTS OR SUBCONTRACTORS BE LIABLE UNDER ANY THEORY OF TORT,
CONTRACT, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR LOST PROFITS,
EXEMPLARY, PUNITIVE, SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES,
EACH OF WHICH IS HEREBY EXCLUDED BY AGREEMENT OF THE PARTIES REGARDLESS OF
WHETHER SUCH DAMAGES WERE FORESEEABLE OR WHETHER EITHER PARTY OR ANY ENTITY HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

         6. Indemnification.
            ---------------

            (a)  The Company shall indemnify and hold FDISG, its directors,
officers, employees, shareholders and agents harmless from and against any and
all claims, costs, expenses (including reasonable attorneys' fees), losses,
damages, charges, payments and liabilities of any sort or kind which may be
asserted against FDISG or for which FDISG may be held to be liable in 


                                       4
<PAGE>
 
connection with this Agreement or FDISG's performance hereunder (a "Claim"),
unless such Claim resulted from a negligent act or omission to act or bad faith
by FDISG in the performance of its duties hereunder.

            (b)  FDISG shall indemnify and hold the Company and the Fund and
each of its trustees, officers, employees, shareholders and agents harmless from
and against any and all Claims; provided that such Claim resulted from a
negligent act or omission to act or bad faith by FDISG in the performance of its
duties hereunder.

            (c)  In any case in which either party (the "Indemnifying Party")
may be asked to indemnify or hold the other party (the "Indemnified Party")
harmless, the Indemnified Party will notify the Indemnifying Party promptly
after identifying any situation which it believes presents or appears likely to
present a claim for indemnification against the Indemnifying Party, although the
failure to do so shall not prevent recovery by the Indemnified Party, and shall
keep the Indemnifying Party advised with respect to all developments concerning
such situation. The Indemnifying Party shall have the option to defend the
Indemnified Party against any claim which may be the subject of this
indemnification, and, in the event that the Indemnifying Party so elects, such
defense shall be conducted by counsel chosen by the Indemnifying Party and
satisfactory to the Indemnified Party, and thereupon the Indemnifying Party
shall take over complete defense of the claim and the Indemnified Party shall
sustain no further legal or other expenses in respect of such claim. The
Indemnified Party will not confess any claim or make any compromise in any case
in which the Indemnifying Party will be asked to provide indemnification, except
with the Indemnifying Party's prior written consent. The obligations of the
parties hereto under this Section 6 shall survive the termination of this
Agreement.

         7. Termination of Agreement.
            ------------------------

            (a)  This Agreement shall be effective on the date first written
above and shall continue for a period of three (3) years (the "Initial Term"),
unless earlier terminated pursuant to the terms of this Agreement. Thereafter,
this Agreement shall automatically be renewed for successive terms of one (1)
year ("Renewal Terms") each.

            (b)  Either party may terminate this Agreement at the end of the
Initial Term or at the end of any subsequent Renewal Term upon not than less
than ninety (90) days or more than one hundred-eighty (180) days prior written
notice to the other party. The Company shall have the right to terminate this
Agreement upon the dissolution of the Company or the Fund upon not less than
ninety (90) days' prior written notice to FDISG of its intent to effect such
dissolution.

            (c)  In the event a termination notice is given by the Company, all
expenses associated with movement of records and materials and conversion
thereof will be borne by the Company.

            (d)  If a party hereto is guilty of a material failure to perform
its duties and obligations hereunder (a "Defaulting Party") resulting in a
material loss to the other party, such other party (the "Non-Defaulting Party")
may give written notice thereof to the Defaulting Party, and if such material
breach shall not have been remedied within thirty (30) days after such written
notice is given, then the Non-Defaulting Party may terminate this Agreement by
giving thirty (30) 


                                       5
<PAGE>
 
days written notice of such termination to the Defaulting Party. If FDISG is the
Non-Defaulting Party, its termination of this Agreement shall not constitute a
waiver of any other rights or remedies of FDISG with respect to services
performed prior to such termination or rights of FDISG to be reimbursed for out-
of-pocket expenses. In all cases, termination by the Non-Defaulting Party shall
not constitute a waiver by the Non-Defaulting Party of any other rights it might
have under this Agreement or otherwise against the Defaulting Party.

         8.  Modifications and Waivers. No change, termination, modification, or
             -------------------------
waiver of any term or condition of the Agreement shall be valid unless in
writing signed by each party. No such writing shall be effective as against
FDISG unless said writing is executed by a Senior Vice President, Executive Vice
President or President of FDISG. A party's waiver of a breach of any term or
condition in the Agreement shall not be deemed a waiver of any subsequent breach
of the same or another term or condition.

         9.  No Presumption Against Drafter. FDISG and the Company have jointly
             ------------------------------
participated in the negotiation and drafting of this Agreement. The Agreement
shall be construed as if drafted jointly by the Company and FDISG, and no
presumptions arise favoring any party by virtue of the authorship of any
provision of this Agreement.

         10. Publicity. Neither FDISG nor the Company shall release or publish
             ---------
news releases, public announcements, advertising or other publicity relating to
this Agreement or to the transactions contemplated by it without prior review
and written approval of the other party; provided, however, that either party
may make such disclosures as are required by legal, accounting or regulatory
requirements after making reasonable efforts in the circumstances to consult in
advance with the other party.

         11. Severability. The parties intend every provision of this Agreement
             ------------
to be severable. If a court of competent jurisdiction determines that any term
or provision is illegal or invalid for any reason, the illegality or invalidity
shall not affect the validity of the remainder of this Agreement. In such case,
the parties shall in good faith modify or substitute such provision consistent
with the original intent of the parties. Without limiting the generality of this
paragraph, if a court determines that any remedy stated in this Agreement has
failed of its essential purpose, then all other provisions of this Agreement,
including the limitations on liability and exclusion of damages, shall remain
fully effective.

         12. Miscellaneous.
             -------------

             (a) Any notice or other instrument authorized or required by this
Agreement to be given in writing to the Company or FDISG shall be sufficiently
given if addressed to that party and received by it at its office set forth
below or at such other place as it may from time to time designate in writing.

                              To the Company:

                              MML Series Investment Fund
                              1295 State Street
                              Springfield, Massachusetts 01111
                              Attention:  Raymond B. Woolson


                                       6
<PAGE>
 
                              To MassMutual:

                              Massachusetts Mutual Life Insurance Company
                              1295 State Street
                              Springfield, Massachusetts 01111
                              Attention:  Hamline C. Wilson

                              To FDISG:

                              First Data Investor Services Group, Inc.
                              4400 Computer Drive
                              Westborough, Massachusetts 01581
                              Attention: President

                              with a copy to FDISG's General Counsel

             (b)  This Agreement shall be binding upon and inure to the benefit
of the parties hereto and their respective successors and permitted assigns and
is not intended to confer upon any other person any rights or remedies
hereunder. This Agreement may not be assigned or otherwise transferred by either
party hereto, without the prior written consent of the other party, which
consent shall not be unreasonably withheld; provided, however, that FDISG may,
in its sole discretion, assign all its right, title and interest in this
Agreement to an affiliate, parent or subsidiary, or to the purchaser of
substantially all of its business. FDISG may engage subcontractors to perform
any of the obligations contained in this Agreement to be performed by FDISG;
provided, however, that FDISG shall not engage subcontractors to perform
substantially all of its obligations contained in this Agreement to be performed
by FDISG without the prior written consent of the Company which consent shall
not be unreasonably withheld. FDISG shall be as responsible to the Company for
the acts and omissions of any subcontractors as it is for its own acts and
omissions under this Agreement.

             (c)  The laws of the Commonwealth of Massachusetts, excluding the
laws on conflicts of laws, shall govern the interpretation, validity, and
enforcement of this Agreement. All actions arising from or related to this
Agreement shall be brought in the state and federal courts sitting in the City
of Boston, and FDISG and the Company hereby submit themselves to the exclusive
jurisdiction of those courts.

             (d)  This Agreement may be executed in any number of counterparts
each of which shall be deemed to be an original and which collectively shall be
deemed to constitute only one instrument.

             (e)  The captions of this Agreement are included for convenience of
reference only and in no way define or delimit any of the provisions hereof or
otherwise affect their construction or effect.

         13. Confidentiality. All books, records, information and data
             ---------------
pertaining to the business of the other party which are exchanged or received
pursuant to the negotiation or the carrying out 

                                       7
<PAGE>
 
of this Agreement shall remain confidential and shall not be voluntarily
disclosed to any other person, except as may be required in the performance of
duties hereunder or as otherwise required by law.

         14. Force Majeure. No party shall be liable for any default or delay in
             -------------
the performance of its obligations under this Agreement if and to the extent
such default or delay is caused, directly or indirectly, by (i) fire, flood,
elements of nature or other acts of God; (ii) any outbreak or escalation of
hostilities, war, riots or civil disorders in any country, (iii) any act or
omission of the other party or any governmental authority; (iv) any labor
disputes (whether or not the employees' demands are reasonable or within the
party's power to satisfy); or (v) nonperformance by a third party or any similar
cause beyond the reasonable control of such party, including without limitation,
failures or fluctuations in telecommunications or other equipment. In any such
event, the non-performing party shall be excused from any further performance
and observance of the obligations so affected only for so long as such
circumstances prevail and such party continues to use commercially reasonable
efforts to recommence performance or observance as soon as practicable.
Notwithstanding anything in this Agreement to the contrary, FDISG 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.

         15. Entire Agreement. This Agreement, including all Schedules hereto,
             ----------------
constitutes the entire Agreement between the parties with respect to the subject
matter hereof and supersedes all prior and contemporaneous proposals,
agreements, contracts, representations, and understandings, whether written or
oral, between the parties with respect to the subject matter hereof.

         16. Obligation of the Trust. A copy of the Agreement and Declaration of
             -----------------------
Trust of the Company is on file with the secretary of the Commonwealth of
Massachusetts, and notice is hereby given that this Agreement is executed on
behalf of the Trustees as Trustees of the Company and not individually, and that
the obligations of this Agreement are not binding upon any of the Trustees or
shareholders individually, but are binding only upon the assets and property of
the Fund.


                                       8
<PAGE>
 
         IN WITNESS WHEREOF, the parties hereto have caused this instrument to
be duly executed and delivered by their duly authorized officers as of the date
first written above.


                           FIRST DATA INVESTOR SERVICES GROUP, INC.


                           By: /s/ Michael Kardok
                              ----------------------------------

                           Name:   Michael Kardok
                                --------------------------------

                           Title:  Vice President
                                 -------------------------------
                           
                            
                           MML SERIES INVESTMENT FUND, on behalf of
                           MML EQUITY INDEX FUND


                           By: /s/ Stuart H. Reese
                              ----------------------------------

                           Name:   Stuart H. Reese
                                --------------------------------

                           Title:  President
                                 -------------------------------


                           MASSACHUSETTS MUTUAL LIFE INSURANCE
                           COMPANY


                           By: /s/ Hamline C. Wilson
                              ----------------------------------

                           Name:   Hamline C. Wilson
                                --------------------------------

                           Title:  Senior Managing Director
                                 -------------------------------

                                       9
<PAGE>
 
                                  SCHEDULE A
                                  ----------

                                 FEE SCHEDULE

For the services to be rendered, the facilities to be furnished and the payments
to be made by FDISG, as provided in this Agreement, MassMutual, on behalf of the
Fund, will pay FDISG on the first business day of each month a fee for the
previous month as set forth below.

                    First $100 million in net assets         .10%
                    $100 - $250 million in net assets        .075%
                    $250 - $500 million in net assets        .05%
                    $500 - $1 billion in net assets          .025%
                    Net assets in excess of $1 billion       .01%

                    Minimum Fee for the Fund:
                         Year 1                              $65,000
                         Year 2                              $75,000
                         Thereafter                          $85,000


FDISG reserves the right to renegotiate the fees set forth on this Schedule A
and in Section 4 of the Agreement should the actual services vary materially
from the assumptions provided.


                                      10
<PAGE>
 
                                  SCHEDULE B
                                  ----------

                            Out-of-Pocket Expenses



Out-of-pocket expenses include, but are not limited to, the following:



          -    Overnight delivery and courier service

          -    Telephone and telecommunications charges (including fax)

          -    Pricing vendor services at $0.05 per equity quote (which amount
               may not be changed without the prior written consent of the
               Company)

          -    Terminals, transmitting lines and any expenses incurred in
               connection with such lines

          -    Travel to and from Board Meetings outside the city of Boston,
               Massachusetts (subject to prior approval from the Company)

          -    Custom programming requests at a rate of $100 per hour

          -    Duplicating charges with respect to filings with federal and
               state authorities and Board meeting materials (when applicable)

          -    Forms and supplies for the preparation of Board meeting and other
               materials for the Company or the Fund

          -    Any other unusual expenses in association with the operation of
               the Company, such as excessive duplicating charges


                                      11
<PAGE>
 
                                  SCHEDULE C
                                  ----------

                               List of Services


Accounting Services:
- --------------------

          .   Portfolio and general ledger accounting 
          .   Daily pricing of all securities 
          .   Daily valuation and NAV calculation 
          .   Comparison of NAV to market movement
          .   Review of price tolerance/fluctuation report 
          .   Research items appearing on the price exception report
          .   Preparation of monthly ex-dividend monitor
          .   Daily cash reconciliation with the custodian bank 
          .   Daily updating of price information to MassMutual
          .   Daily support and report delivery to Portfolio Management
          .   Daily calculation of Fund advisor fees and waivers
          .   Daily maintenance of the Fund's general ledger including expense 
              accruals
          .   Preparation of month-end reconciliation package
          .   Monthly reconciliation of Fund expense records

Financial Administration Services:
- ----------------------------------

          .   Compliance testing 
          .   Providing shareholder tax information
          .   Producing drafts of IRS and state tax returns
          .   Expense accrual monitoring 
          .   Determination of dividends 
          .   Prepare semi-annual/annual reports to shareholders 
          .   Coordinate audit process with independent accountants 
          .   Provide SEC standard performance information
          .   Coordinate with all aspects of the printing and mailing process 
              with MassMutual for all shareholder publications


                                      12

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<LEGEND>
    
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 
FINANCIAL STATEMENTS OF MML EQUITY INDEX FUND (THE "FUND") FOR THE PERIOD ENDED
AUGUST 31, 1997, AS SET FORTH IN THE FUND'S STATEMENT OR ADDITIONAL INFORMATION 
DATED OCTOBER 22, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH 
FINANCIAL STATEMENTS.     
</LEGEND>
<CIK>  0000067160
<NAME> MML EQUITY INDEX FUND
       
<S>                             <C>
<PERIOD-TYPE>                   4-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             MAY-01-1997
<PERIOD-END>                               AUG-31-1997
<INVESTMENTS-AT-COST>                       20,113,101
<INVESTMENTS-AT-VALUE>                      22,543,992
<RECEIVABLES>                                   39,664
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              22,583,656
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       41,539
<TOTAL-LIABILITIES>                             41,539
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    19,991,395
<SHARES-COMMON-STOCK>                        2,001,143
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                      100,493
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (673)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     2,430,891
<NET-ASSETS>                                22,542,117
<DIVIDEND-INCOME>                              137,328
<INTEREST-INCOME>                               11,040
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                  47,874
<NET-INVESTMENT-INCOME>                        100,493
<REALIZED-GAINS-CURRENT>                         (673)
<APPREC-INCREASE-CURRENT>                    2,430,891
<NET-CHANGE-FROM-OPS>                        2,530,711
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,001,143
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                      22,542,117
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           29,505
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 18,369
<AVERAGE-NET-ASSETS>                        22,509,127
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                    .05
<PER-SHARE-GAIN-APPREC>                           1.21
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.26
<EXPENSE-RATIO>                                    .21
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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