EATON VANCE MUTUAL FUNDS TRUST
N-30D, 1997-09-12
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<PAGE>
 
[LOGO OF EATON     Investing
 VANCE APPEARS     for the                              [PICUTRE OF THE STATUE
    HERE]          21st                                   OF LIBERTY APPEARS
                   Century                                       HERE]



                        Semiannual Report June 30, 1997

   [PICTURE OF
 FEDERAL BUILDING                      EV
  APPEARS HERE]
                                  TRADITIONAL

                                  GOVERNMENT 

                                  OBLIGATIONS

                                     FUND



                                                           T r a d i t i o n a l

                                  Eaton Vance

                     Global Management-Global Distribution


[PICTURE OF AMERICAN FLAG
     APPEARS HERE]
<PAGE>
 
EV Traditional Government Obligations Fund as of June 30, 1997

INVESTMENT UPDATE

[PHOTOGRAPH OF SUSAN SCHIFF APPEARS HERE]

Susan Schiff,
Portfolio Manager

Investment Environment
- --------------------------------------------------------------------------------
The Economy

 . Interest rates moved modestly higher during the six months ended June 30. For
  example, three-year Treasury bond yields rose from 6.01% on December 31 to
  6.21% on June 30. However, recent data have reassured investors that inflation
  does not pose an imminent threat.

 .  Not surprisingly, in a somewhat defensive market, mortgage-backed securities
   (MBS) slightly outperformed Treasuries. Yield spreads - the yield
   differential of mortgage securities over similar maturity Treasury bonds -
   narrowed by around 15 basis points (.15%) during the period, according to
   Bloomberg Financial.

 .  Prepayment rates - the rate at which homeowners prepay their mortgages -
   increased slightly for generic MBS during the period, as homeowners moved to
   refinance before interest rates rose further.

 .  Predictably, the story was different for seasoned mortgages - the investment
   universe of the Fund. Prepayment rates were little changed, reflecting the
   relative insensitivity of these mortgages to changes in interest rates.

The Fund
- --------------------------------------------------------------------------------
   Performance for the Past Six Months

 .  The Fund's total return was 2.8% for the six months ended June 30, 1997,/1/
   the result of a decline in net asset value per share from $10.68 on December
   31, 1996 to $10.57 on June 30, 1997, and the reinvestment of $0.404 in
   dividends. Based on its $10.57 net asset value on June 30, the Fund had a
   distribution rate of 7.7%.

 .  In comparison, the Lehman Government/Corporate Index/2/ - an unmanaged index
   of U.S. government and corporate bond issues - had a total return of 2.7%
   during the same period.

 .  Within its competitive universe, the Fund performed generally in line with
   the 2.6% average return of 97 Short/Intermediate Government Bond funds as
   monitored by Lipper Analytical Services, Inc./3/

   Management Discussion

 .  The majority (57%) of the Portfolio's investments were seasoned low-coupon
   MBS. These low interest rate mortgages were originated in the 1960s-70s by
   homeowners who now have little incentive to refinance their mortgages.
   Therefore, they provide relatively stable cash flows.

 .  Another major segment of the Portfolio (23%) was invested in seasoned high-
   coupon MBS. With coupons in the 12-to-16% range, these securities provide a
   significant yield advantage over Treasury securities with similar maturities.

 .  The Fund had a duration of 2.9 years at June 30. That was slightly shorter
   than the Fund's 3.2-year duration at December 31, and reflected the
   Portfolio's more cautious market stance in the face of stronger economic
   data. Duration is a measure of interest rate sensitivity that factors average
   maturity and future cash flows.

 .  The Fund benefited from continued adequate supply of seasoned mortgages
   within the $1 trillion mortgage securities market. Demand for seasoned paper
   has risen as investors look for what they consider the less sensitive
   securities in the U.S. mortgage market.

- --------------------------------------------------------------------------------
/1/This return does not include the maximum 3.75% sales charge payable by new
   Fund shareholders.
/2/It is not possible to invest directly in the Index.
/3/It is not possible to invest directly in the Lipper category of
   Short/Intermediate Government Bond Funds.
/4/Returns are calculated by determining the percentage change in net asset
   value with all distributions reinvested. SEC average annual returns reflect
   maximum 3.75% sales charge.
/5/Because the Fund is actively managed, sector weightings and Portfolio
   Overview are subject to change.

Past performance is no guarantee of future results. The value of an investment
in the Fund will fluctuate so that shares, when redeemed, may be worth more or
less than their original cost.

- --------------------------------------------------------------------------------
Mutual fund shares are not insured by the FDIC and are not deposits or other
obligations of, or guaranteed by, any depository institution. Shares are subject
to investment risks, including possible loss of principal invested.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Fund Information
as of June 30, 1997

<TABLE>
<CAPTION>
 
Performance/4/
- ----------------------------------------
Average Annual Total Returns
- ----------------------------------------
<S>                                 <C>
One year                            7.1%
Five years                          6.3
Ten years                           8.0

<CAPTION> 

SEC Average Annual Total Returns
- ----------------------------------------
<S>                                 <C> 
One year                            3.2%
Five years                          5.5
Ten years                           7.6
 

Diversification by Sectors/5/
- ----------------------------------------
By Total Investments

[PIE CHART APPEARS HERE]

<S>                                <C> 
Federal National Mortgage Assn.    37.4%
Federal Home Loan Mortgage Corp.   33.7
U.S. Treasuries                    15.9
Govt. National Mortgage Assn.       9.0
CMOs                                3.1
Commercial Paper                    0.9

<CAPTION> 

Portfolio Overview/5/
- ----------------------------------------
<S>                            <C> 
Duration                       2.9 years
Low Coupon MBS                       57%
High Coupon MBS                      23%
</TABLE> 

                                       2
<PAGE>

EV Traditional Government Obligations Fund  as of June 30, 1997

FINANCIAL STATEMENTS (Unaudited)

Statement of Assets and Liabilities                                        

<TABLE> 
<CAPTION> 
As of June 30, 1997
Assets
- --------------------------------------------------------------------------------
<S>                                                                <C> 
Investment in Government Obligations Portfolio (Portfolio),        $286,254,745
    at value (Note 1A)(identified cost, $272,954,658)                          
Receivable for Fund shares sold                                         214,225
- --------------------------------------------------------------------------------
Total assets                                                       $286,468,970
- --------------------------------------------------------------------------------
                                                                           
Liabilities                                                                
- --------------------------------------------------------------------------------
Dividends payable                                                  $    838,779
Payable for Fund shares redeemed                                        290,766
Payable to affiliate for Trustees' fees (Note 5)                            842
Accrued expenses                                                        105,625
- --------------------------------------------------------------------------------
Total liabilities                                                  $  1,236,012
- --------------------------------------------------------------------------------

Net Assets for 26,995,312 shares of                                        
    beneficial interest outstanding                                $285,232,958
- --------------------------------------------------------------------------------
                                                                           
Sources of Net Assets                                                      
- --------------------------------------------------------------------------------
 Paid-in capital                                                   $328,179,420
Accumulated net realized loss on investments                               
    (computed on the basis of identified cost)                      (55,348,015)
Accumulated distributions in excess of net                             
    investment income                                                  (898,534)
Net unrealized appreciation of investments                                 
    from Portfolio                                                   
    (computed on the basis of identified cost)                       13,300,087
- --------------------------------------------------------------------------------
Total                                                              $285,232,958
- --------------------------------------------------------------------------------
                                                                     
Net Asset Value and Redemption                                       
Price Per Share                                                      
- --------------------------------------------------------------------------------
($285,232,958 divide 26,995,312 shares of                                 
     beneficial interest outstanding)                              $      10.57
- --------------------------------------------------------------------------------
                                                                     
Computation of Offering Price                                        
- --------------------------------------------------------------------------------
Offering price per share (100 divided by 96.25 of $10.57)          $      10.98
- --------------------------------------------------------------------------------
On  sales of $100,000 or more, the offering price is reduced.



Statement of Operations

For the Six Months Ended
June 30, 1997
Investment Income (Note 1B)
- --------------------------------------------------------------------------------
Interest income allocated from Portfolio                           $ 13,067,223
Expenses allocated from Portfolio                                    (1,228,990)
- --------------------------------------------------------------------------------
Net investment income from Portfolio                               $ 11,838,233
- --------------------------------------------------------------------------------
                                                                              
Expenses                                                                      
- --------------------------------------------------------------------------------
Compensation of Trustees not members of the                                   
    Administrator's organization (Note 5)                          $      1,652
Service fees (Note 6)                                                   357,307
Transfer and dividend disbursing agent fees                             133,811
Printing and postage                                                     52,347
Registration fees                                                        13,160
Custodian fee                                                            11,692
Legal and accounting services                                             4,222
Miscellaneous                                                            28,089
- --------------------------------------------------------------------------------
Total expenses                                                     $    602,280
- --------------------------------------------------------------------------------
                                                                     
Net investment income                                              $ 11,235,953
- --------------------------------------------------------------------------------
                                                                     
Realized and Unrealized                                              
Gain (Loss) from Portfolio                                           
- --------------------------------------------------------------------------------
Net realized gain (loss) --                                          
    Investment transactions (identified cost basis)                $ (1,423,057)
    Financial futures contracts                                       1,294,710
- --------------------------------------------------------------------------------
Net realized loss on investment transactions                       $   (128,347)
- --------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) --                  
    Investments                                                    $ (1,802,723)
    Financial futures contracts                                      (1,229,978)
- --------------------------------------------------------------------------------
Net change in unrealized appreciation (depreciation) of
     investments                                                   $ (3,032,701)
- --------------------------------------------------------------------------------
                                                                     
Net realized and unrealized loss on investments                    $ (3,161,048)
- --------------------------------------------------------------------------------
                                                                     
Net increase in net assets from operations                         $  8,074,905
- --------------------------------------------------------------------------------
</TABLE> 

                       See notes to financial statements

                                       3


<PAGE>

EV Traditional Government Obligations Fund  as of June 30, 1997

FINANCIAL STATEMENTS CONT'D

Statements of Changes in Net Assets

<TABLE> 
<CAPTION> 
                                           Six Months                          
                                           Ended                               
Increase (Decrease)                        June 30, 1997     Year Ended        
in Net Assets                              (Unaudited)       December 31, 1996  
- -------------------------------------------------------------------------------
<S>                                        <C>                 <C> 
From operations --
    Net investment income                  $ 11,235,953        $ 24,676,978 
    Net realized loss on                       (128,347)         (3,495,428)
       investments                                                          
    Net change in unrealized
        appreciation (depreciation)                                           
        of investments                       (3,032,701)         (7,582,158) 
- -------------------------------------------------------------------------------
Net increase in net assets
    from operations                        $  8,074,905        $ 13,599,392
- -------------------------------------------------------------------------------
Distributions to shareholders          
(Note 2) --
    From net investment income             $(11,189,125)       $(24,581,667)
- -------------------------------------------------------------------------------
Total distributions to shareholders        $(11,189,125)       $(24,581,667)
- -------------------------------------------------------------------------------
Transactions in shares of
    beneficial interest (Note 3)  -- 
    Proceeds from sale of shares           $ 43,807,028        $ 19,913,181
    Net asset value of shares 
    issued to shareholders in 
    payment of distributions declared         5,085,663          11,926,517
    Cost of shares redeemed                 (63,508,924)        (77,631,807)
- -------------------------------------------------------------------------------
Net decrease in net assets from Fund                                          
    share transactions                     $(14,616,233)       $(45,792,109)  
- -------------------------------------------------------------------------------

Net decrease in net assets                 $(17,730,453)       $(56,774,384)
- -------------------------------------------------------------------------------

Net Assets
- ------------------------------------------------------------------------------- 
At beginning of period                     $302,963,411        $359,737,795
- -------------------------------------------------------------------------------
At end of period                           $285,232,958        $302,963,411
- ------------------------------------------------------------------------------- 

Accumulated distributions in 
excess of net investment
income included in net assets 
- -------------------------------------------------------------------------------
At end of period                           $   (898,534)       $   (945,362)
- -------------------------------------------------------------------------------
</TABLE> 

                       See notes to financial statements

                                        4

<PAGE>

EV Traditional Government Obligations Fund  as of June 30, 1997

FINANCIAL STATEMENTS CONT'D

Financial Highlights

<TABLE> 
<CAPTION> 
                                                          Six Months Ended                    Year Ended December 31,
                                                          June 30, 1997  -----------------------------------------------------------
                                                          (Unaudited)     1996        1995        1994         1993        1992
<S>                                                        <C>           <C>        <C>          <C>         <C>          <C>  
- ------------------------------------------------------------------------------------------------------------------------------------
Net asset value -- Beginning of period                     $ 10,680      $11,020    $ 10,420     $11,480     $ 11,380     $ 11,800
- ------------------------------------------------------------------------------------------------------------------------------------

INCOME (LOSS) FROM OPERATIONS
- ------------------------------------------------------------------------------------------------------------------------------------
Net investment income                                      $  0.402      $ 0.810    $  0.807     $ 0.805     $  0.919     $  0.975
Net realized and unrealized gain (loss) on investments       (0.110)      (0.340)      0.603      (1.029)       0.106       (0.388)
- ------------------------------------------------------------------------------------------------------------------------------------
Total income (loss) from operations                        $  0.292      $ 0.470    $  1.410     $(0.224)    $  1.025     $  0.587
- ------------------------------------------------------------------------------------------------------------------------------------

LESS DISTRIBUTIONS
- ------------------------------------------------------------------------------------------------------------------------------------
From net investment income                                 $ (0.402)     $(0.810)   $ (0.810)    $(0.805)    $ (0.919)    $ (1.007)
In excess of net investment income                               --           --          --      (0.031)      (0.006)          --
- ------------------------------------------------------------------------------------------------------------------------------------

Total distributions                                        $ (0.402)     $(0.810)   $ (0.810)    $(0.836)    $ (0.925)    $ (1.007)
- ------------------------------------------------------------------------------------------------------------------------------------

Net asset value-- End of period                            $ 10.570      $10.680    $ 11.020     $10.420     $ 11.480     $ 11.380
- ------------------------------------------------------------------------------------------------------------------------------------

Total Return (1)                                               2.80%        4.52%      13.97%      (2.03)%       9.26%        5.29%
- ------------------------------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA
- ------------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period (000 omitted)                    $285,233      $302,963   $359,738     $386,186    $503,150     $468,960
Ratio of expenses to average net assets (2)                    1.25%+        1.17%      1.18%        1.18%       1.14%        1.12%
Ratio of net investment income to average net assets           7.69%+        7.59%      7.53%        7.70%       7.86%        8.52%
Portfolio turnover (3)                                           --            --         --          --           52%          26%
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

+   Annualized.

(1) Total return is calculated assuming a purchase at the net asset value on the
    first day and a sale at the net asset value on the last day of each period
    reported. Dividends and distributions, if any, are assumed to be reinvested
    at the net asset value on the payable date. Total return is not computed on
    an annualized basis.

(2) Includes the Fund's share of the Portfolio's allocated expenses.

(3) Portfolio Turnover represents the rate of portfolio activity for the period
    while the Fund was making investments directly in securities. The portfolio
    turnover rate for the period since the Fund transferred substantially all of
    its investable assets to the Portfolio is shown in the Portfolio's financial
    statements which are included elsewhere in this report.

                      See notes to financial statements 

                                       5

<PAGE>
 
EV Traditional Government Obligations Fund as of June 30, 1997 

NOTES TO FINANCIAL STATEMENTS (Unaudited)


1   Significant Accounting Policies
    ----------------------------------------------------------------------------
    EV Traditional Government Obligations Fund (the Fund) is a diversified
    entity of the type commonly known as a Massachusetts business trust and is
    registered under the Investment Company Act of 1940, as amended, as an
    open-end management investment company. The Fund is a series of Eaton Vance
    Mutual Funds Trust (formerly the Eaton Vance Government Obligtions Trust).
    The Fund invests all of its investable assets in interests in the Government
    Obligations Portfolio (the Portfolio), a New York Trust, having the same
    investment objective as the Fund. The value of the Fund's investment in the
    Portfolio reflects the Fund's proportionate interest in the net assets of
    the Portfolio (66.6% at June 30, 1997). The performance of the Fund is
    directly affected by the performance of the Portfolio. The financial
    statements of the Portfolio, including the portfolio of investments, are
    included elsewhere in this report and should be read in conjunction with the
    Fund's financial statements. The following is a summary of significant
    accounting policies consistently followed by the Fund in the preparation of
    its financial statements. The policies are in conformity with generally
    accepted accounting principles.

    A Investment Valuation -- Valuation of securities by the Portfolio is
    discussed in Note 1A of the Portfolio's Notes to Financial Statements which
    are included elsewhere in this report.

    B Income -- The Fund's net investment income consists of the Fund's pro rata
    share of the net investment income of the Portfolio, less all actual and
    accrued expenses of the Fund.

    C Federal Taxes -- The Fund's policy is to comply with the provisions of the
    Internal Revenue Code applicable to regulated investment companies and to
    distribute to shareholders each year all of its taxable income, including
    any net realized gain on investments, options and financial futures
    transactions. Accordingly, no provision for federal income or excise tax is
    necessary. At December 31, 1996, the Fund, for federal income tax purposes,
    had a capital loss carryover of $42,090,122 which will reduce the Fund's
    taxable income arising from future net realized gain on investment
    transactions, if any, to the extent permitted by the Internal Revenue Code
    and thus will reduce the amount of distributions to shareholders which would
    otherwise be necessary to relieve the Fund of any liability for federal
    income tax. Such capital loss carryovers will expire on December 31, 1997
    ($4,277,560), December 31, 1998 ($6,941,299),


    December 31, 1999 ($1,545,746), December 31, 2000 ($5,952,987), December 31,
    2002 ($14,269,677), December 31, 2003 ($2,262,938), December 31, 2004
    ($6,839,915).

    D Expense Reduction -- Investors Bank & Trust Company (IBT) serves as
    custodian to the Fund and the Portfolio. Pursuant to the respective
    custodian agreements, IBT receives a fee reduced by credits which are
    determined based on the average cash balances the Fund or the Portfolio
    maintains with IBT. All significant credit balances used to reduce each
    Fund's custodian fees are reflected as a reduction of operating expenses on
    the Statement of Operations.

    E Use of 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 at the date of the financial statements and the reported amounts
    of income and expense during the reporting period. Actual results could
    differ from those estimates.

    F Interim Financial Information -- The interim financial statements relating
    to June 30, 1997 and the period then ended have not been audited by
    independent certified public accountants, but in the opinion of the
    Portfolio's management reflect all adjustments, consisting only of normal
    recurring adjustments, necessary for the fair presentation of the financial
    statements.

2   Distributions to Shareholders
    ----------------------------------------------------------------------------
    The net income of the Fund is determined daily and substantially all of the
    net income so determined is declared as a dividend to shareholders of record
    at the time of declaration. Distributions are paid monthly. Distributions of
    allocated realized capital gains, if any, are made at least annually.
    Shareholders may reinvest capital gain distributions in additional shares of
    the Fund at the net asset value as of the ex-dividend date. Distributions
    are paid in the form of additional shares or, at the election of the
    shareholder, in cash. The Fund distinguishes between distributions on a tax
    basis and a financial reporting basis. Generally accepted accounting
    principles require that only distributions in excess of tax basis earnings
    and profits be reported in the financial statements as a return of capital.
    Differences in the recognition or classification of income between the
    financial statements and tax earnings and profits which result in
    over-distributions for financial statement purposes only are

                                       6
<PAGE>
 
EV Traditional Government Obligations Fund as of June 30, 1997

NOTES TO FINANCIAL STATEMENTS (Unaudited)CONT'D


    classified as distributions in excess of net investment income or
    accumulated net realized gains. Permanent differences between book and tax
    accounting relating to distributions are reclassified to paid-in capital.

3   Shares of Beneficial Interest
    ----------------------------------------------------------------------------
    The Declaration of Trust permits the Trustees to issue an unlimited number
    of full and fractional shares of beneficial interest (without par value).
    Transactions in Fund shares were as follows:

<TABLE> 
<CAPTION> 
                                        Six Months Ended
                                        June 30, 1997       Year Ended
                                        (Unaudited)         December 31, 1996
- --------------------------------------------------------------------------------
<S>                                     <C>                 <C> 
    Sales                                    4,130,530           1,855,497

    Issued to shareholders electing to
     receive payments of distributions
     in Trust shares                           479,532           1,112,439

    Redemptions                             (5,995,181)         (7,221,418)
- --------------------------------------------------------------------------------
    Net increase (decrease)                 (1,385,119)         (4,253,482)
- --------------------------------------------------------------------------------
</TABLE> 

4   Investment Transactions
    ----------------------------------------------------------------------------
    Increases and decreases in the Fund's investment in the Portfolio for the
    six months ended June 30, 1997, aggregated $44,276,034 and $71,116,471,
    respectively.

5   Transactions with Affiliates
    ----------------------------------------------------------------------------
    Eaton Vance Management (EVM) serves as the administrator of the Fund, but
    receives no compensation. The Portfolio has engaged Boston Management and
    Research (BMR), a subsidiary of EVM, to render investment advisory services.
    See Note 3 of the Portfolio's Notes to Financial Statements which are
    included elsewhere in this report. Certain of the officers and Trustees of
    the Fund and Portfolio are officers and trustees of the above organizations.
    Except as to Trustees of the Fund and the Portfolio who are not members of
    EVM's or BMR's organization, officers and Trustees receive remuneration for
    their services to the Fund out of the investment adviser fee earned by BMR.

6   Service Plan
    ----------------------------------------------------------------------------
    The Fund has adopted a Service Plan on July 7, 1993 designed to meet the
    requirements of Rule 12b-1 under the Investment Company Act of 1940 and the
    service fee requirements of the revised sales charge rule of The National
    Association of Securities Dealers Inc. The Service Plan replaced the Fund's
    distribution plan which became effective on July 9, 1984. The Service Plan
    provides that the Fund may make service fee payments to the Principal
    Underwriter, Eaton Vance Distributors, Inc., a subsidiary of Eaton Vance
    Management, Authorized Firms or other persons in amounts not exceeding 0.25%
    of the Fund's average daily net assets for any fiscal year. The Trustees
    have implemented the Service Plan by authorizing the Fund to make quarterly
    service fee payments to the Principal Underwriter and Authorized Firms in
    amounts not expected to exceed 0.25% of the Fund's average daily net assets
    for any fiscal year which is attributable to shares of the Fund sold by such
    persons and remaining outstanding for at least twelve months. Such payments
    are made for personal services and/or the maintenance of shareholder
    accounts. Provision for service fee payments amounted to $357,307 for the
    six months ended June 30, 1997.

                                       7
 





























 
  





 
   
<PAGE>
 
Government Obligations Portfolio  as of June 30, 1997

PORTFOLIO OF INVESTMENTS (Unaudited)


Mortgage Pass-Throughs -- 93.5%                

<TABLE> 
<CAPTION> 
                                                 Principal              
                                                 Amount                 
                                                 (000's omitted) Value  
- ---------------------------------------------------------------------------
<S>                                              <C>          <C> 
Federal Home Loan Mortgage Corp.:                
   4.50%, with maturity at 2000                  $    13      $      12,637  
   4.75%, with various maturities to 2002             32             31,193  
   5.00%, with various maturities to 2003            425            414,446  
   5.25%, with various maturities to 2005            224            217,465  
   5.50%, with various maturities to 2011            852            831,565  
   5.75%, with maturity at 1998                       10             10,265  
   6.00%, with various maturities to 2022          2,651          2,607,163  
   6.25%, with various maturities to 2013            690            679,971  
   6.50%, with various maturities to 2022          8,482          8,423,678  
   6.75%, with various maturities to 2011          7,017          6,997,732  
   7.00%, with various maturities to 2019         11,467         11,489,469  
   7.25%, with maturity at 2003                    1,261          1,267,671  
   7.50%, with various maturities to 2020         15,747         15,943,168  
   7.75%, with various maturities to 2018          3,286          3,339,433  
   8.00%, with various maturities to 2026         20,836         21,379,026  
   8.25%, with various maturities to 2011         11,701         12,073,907  
   8.50%, with various maturities to 2024         22,729         23,650,174  
   8.75%, with various maturities to 2014          2,905          3,022,764  
   9.00%, with various maturities to 2020          9,003          9,528,889  
   9.25%, with various maturities to 2010          2,891          3,053,102  
   9.50%, with various maturities to 2016          1,046          1,109,069  
   10.00%, with various maturities to 2017           241            261,242  
   11.00%, with various maturities to 2019         2,078          2,328,397  
   12.00%, with various maturities to 2019         1,717          1,972,192  
   12.25%, with various maturities to 2019         3,176          3,667,119  
   12.50%, with various maturities to 2019         9,400         10,917,804  
   12.75%, with various maturities to 2015         1,312          1,528,041  
   13.00%, with various maturities to 2019         3,730          4,392,538  
   13.25%, with various maturities to 2019           371            439,958  
   13.50%, with various maturities to 2015         4,501          5,282,284  
   13.75%, with various maturities to 2014            50             58,662  
   14.00%, with various maturities to 2016         2,316          2,754,748  
   14.50%, with various maturities to 2014           224            268,284  
   14.75%, with maturity at 2010                     779            929,820  
   15.00%, with various maturities to 2013           912          1,117,911  
   15.25%, with maturity at 2012                     145            180,007  
   15.50%, with various maturities to 2012           190            232,340  
   16.00%, with various maturities to 2012           138            172,277  
   16.25%, with various maturities to 2012           217            271,629  
- ---------------------------------------------------------------------------
                                                              $ 162,858,040
- ---------------------------------------------------------------------------  
Federal National Mortgage Assn.:                                             

   0.25%, with maturity at 2014                  $   182      $     153,729  
   3.50%, with maturity at 2007                      121            112,133  
   4.50%, with maturity at 1999                        4              4,405  
   5.00%, with various maturities to 2017            718            691,166  
   5.25%, with various maturities to 2006        $   167      $     159,961  
   5.50%, with various maturities to 2006            436            425,991  
   5.75%, with maturity at 2003                      115            113,016  
   6.00%, with various maturities to 2010         16,274         15,982,596  
   6.25%, with various maturities to 2007            466            459,021  
   6.50%, with various maturities to 2017          1,232          1,217,448  
   6.75%, with various maturities to 2007            919            915,038  
   7.00%, with various maturities to 2018          5,989          5,992,597  
   7.25%, with various maturities to 2017          1,733          1,746,985  
   7.50%, with various maturities to 2020         11,358         11,518,152  
   7.75%, with various maturities to 2008          1,276          1,300,410  
   8.00%, with various maturities to 2019         32,032         32,932,507  
   8.25%, with various maturities to 2020         11,056         11,414,451  
   8.50%, with various maturities to 2020         17,199         17,887,057  
   8.75%, with various maturities to 2017          1,262          1,316,904  
   9.00%, with various maturities to 2020          8,111          8,576,712  
   9.25%, with various maturities to 2016          3,911          4,150,968  
   9.50%, with maturity at 2009                      229            245,909  
   9.75%, with maturity at 2019                      352            384,853  
   11.00%, with maturity at 2010                      37             41,086  
   11.75%, with various maturities to 2015         1,939          2,228,340  
   12.00%, with various maturities to 2020         7,159          8,236,538  
   12.25%, with various maturities to 2015         3,234          3,770,118  
   12.50%, with various maturities to 2021        11,793         13,764,056  
   12.75%, with various maturities to 2014         1,585          1,861,132  
   13.00%, with various maturities to 2019        11,533         13,748,527  
   13.25%, with various maturities to 2015         2,014          2,386,684  
   13.50%, with various maturities to 2015         4,416          5,292,205  
   13.75%, with various maturities to 2014           161            192,954  
   14.00%, with various maturities to 2014           684            821,469  
   14.25%, with various maturities to 2014           293            357,819  
   14.50%, with various maturities to 2014           224            271,903  
   14.75%, with various maturities to 2012         3,729          4,605,602  
   15.00%, with various maturities to 2013         2,954          3,669,819  
   15.50%, with various maturities to 2012           894          1,112,763  
   15.75%, with maturity at 2011                      27             34,511  
   16.00%, with various maturities to 2012           330            414,700  
- ---------------------------------------------------------------------------
                                                              $ 180,512,235  
- ---------------------------------------------------------------------------
Government National Mortgage Assn.:                                          
   5.50%, with maturity at 1999                  $    13      $      13,299  
   6.50%, with various maturities to 2002            463            461,298  
   7.25%, with various maturities to 2022          3,839          3,889,390  
   7.50%, with maturity at 2017                      973            998,937  
   8.00%, with various maturities to 2017         19,812         20,477,595  
   8.25%, with various maturities to 2008            479            497,455  
   8.50%, with various maturities to 2018          1,598          1,685,909  
   9.00%, with various maturities to 2016          5,099          5,423,565  
   11.50%, with maturity at 2013                     339            387,665  
   12.00%, with various maturities to 2015         3,360          3,896,870  
</TABLE> 

                       See notes of financial statement

                                       8
<PAGE>
 
Government Obligations Portfolio  as of June 30, 1997

PORTFOLIO OF INVESTMENTS (Unaudited) CONT'D

<TABLE> 
<CAPTION> 
                                                Principal
                                                Amount
                                                (000's omitted)   Value  
- --------------------------------------------------------------------------------
<S>                                             <C>               <C> 
   12.50%, with various maturities to 2015       $1,797           $ 2,118,173
   13.00%, with various maturities to 2014        1,134             1,351,592
   13.50%, with various maturities to 2013          278               332,915
   14.00%, with various maturities to 2015          161               196,731
   14.50%, with various maturities to 2014          451               556,711
   15.00%, with various maturities to 2013          632               790,796
   16.00%, with various maturities to 2012          367               470,240
- --------------------------------------------------------------------------------
                                                                  $43,549,141
- --------------------------------------------------------------------------------
Collateralized Mortgage Obligations:
   Federal Home Loan Mtg. Corp.
      Series 1188-GC, 7.5%, due 2019
      Collateral 100% FHLMC PC                  $10,000           $10,110,930
                                                          
   Federal Home Loan Mtg. Corp.                           
      Series B Class 3, 12.5%, due 2013                   
      Collateral 100% FHLMC PC                      180               206,138
                                                          
   Federal National Mtg. Association                      
      Series 93-73E, 6.35%, due 2019                      
      Collateral 100% FNMA MBS                    3,000             2,933,904
                                                          
   Salomon Brothers Mortgage Securities II, Inc.:         
      11.50%, with maturity at 2015               1,404             1,542,031
- --------------------------------------------------------------------------------
                                                                  $14,793,003
- --------------------------------------------------------------------------------

Total Mortgage Pass-Throughs
    (identified cost, $398,405,795)                              $401,712,419
- --------------------------------------------------------------------------------

U.S. Treasury Obligations -- 17.8%

                                                Principal
                                                Amount
                                                (000's omitted)   Value
- --------------------------------------------------------------------------------
U.S. Treasury Bond, 7.125%, 2/15/23+            $ 6,000           $ 6,192,186
U.S. Treasury Bond, 12.000%, 8/15/13++           50,000            70,445,300
- --------------------------------------------------------------------------------

Total U.S. Treasury Obligations
    (identified cost, $67,368,568)                                $76,637,486
- --------------------------------------------------------------------------------

Short-Term Investments-- 1.0%                                    

                                                Principal
                                                Amount
                                                (000's omitted)   Value
- --------------------------------------------------------------------------------
Banque National de Paris Euro Time-deposit 
Cayman Island, 5.750%, 7/01/97                  $ 4,200          $  4,200,000
- --------------------------------------------------------------------------------

Total Short-Term Investments
    (identified cost, $4,200,000)                                $  4,200,000
- --------------------------------------------------------------------------------

Total Investments -- 112.3%
    (identified cost $469,974,363)                               $482,549,905
- --------------------------------------------------------------------------------

Other Assets, Less Liabilities -- (12.3)%                        $(52,784,637)
- --------------------------------------------------------------------------------

Net Assets -- 100%                                               $429,765,268
- --------------------------------------------------------------------------------
</TABLE> 

+   Security has been pledged as collateral for futures contracts.
++  Security has been pledged as collateral for securities lending.

                       See notes to financial statements

                                       9
<PAGE>

Government Obligations Portfolio as of June 30, 1997

FINANCIAL STATEMENTS (Unaudited)

Statement of Assets and Liabilities                                        


As of June 30, 1997

<TABLE> 
<CAPTION> 
Assets
- ------------------------------------------------------------------------------- 
<S>                                                    <C>    
Investments, at value (Note 1A)
    (identified cost, $469,974,363)                    $482,549,905
Cash                                                         71,452
Receivable for Investments sold                             927,067
Interest receivable                                       5,625,320
Receivable for variation margin on open
    financial futures contracts (Note 1G)                   249,996
Deferred organization expenses (Note 1H)                      5,062
- -------------------------------------------------------------------------------
Total assets                                           $489,428,802
- ------------------------------------------------------------------------------- 

Liabilities
- -------------------------------------------------------------------------------
Liability for collateral received for
    securities loaned (Note 5)                         $ 59,619,200
Payable to affiliate -
    Trustees' fees                                            4,948
Accrued expenses                                             39,386
- ------------------------------------------------------------------------------- 
Total liabilities                                      $ 59,663,534
- -------------------------------------------------------------------------------
Net Assets applicable to investors' interest           $429,765,268
    in Portfolio
- ------------------------------------------------------------------------------- 

Sources of Net Assets
- -------------------------------------------------------------------------------
Net proceeds from capital contributions and                      
    withdrawals                                        $418,203,460
Net unrealized appreciation of investments
    (computed on the basis of identified cost)           11,561,808
- ------------------------------------------------------------------------------- 
Total                                                  $429,765,268
- ------------------------------------------------------------------------------- 


Statement of Operations

For the Six Months Ended
June 30, 1997
Investment Income
- ------------------------------------------------------------------------------- 
Interest Income                                        $ 19,517,411 
- -------------------------------------------------------------------------------
Total income                                           $ 19,517,411   
- ------------------------------------------------------------------------------- 

Expenses
- -------------------------------------------------------------------------------
Investment adviser fee (Note 3)                        $  1,658,818             
Compensation of Trustees not members of the
    Investment Adviser's organization (Note 3)                9,818
Custodian fee                                               103,395
Legal and accounting services                                18,674
Amortization of organization expenses (Note 1H)               1,890
Miscellaneous                                                34,028
- ------------------------------------------------------------------------------- 
Total expenses                                         $  1,826,623            
- ------------------------------------------------------------------------------- 

Net investment income                                  $ 17,690,788             
- -------------------------------------------------------------------------------

Realized and Unrealized
Gain (Loss) on Investments
- ------------------------------------------------------------------------------- 
Net realized gain (loss) --
    Investment transactions (identified cost basis)    $ (2,125,932)
    Financial futures contracts                           1,938,263
- -------------------------------------------------------------------------------
Net realized loss on investments                       $   (187,669)            
- ------------------------------------------------------------------------------- 
Change in unrealized appreciation (depreciation) -- 
    Investments (identified cost basis)                $ (2,633,804)
    Financial futures contracts                          (1,888,943)
- -------------------------------------------------------------------------------
Net change in unrealized appreciation (depreciation)   $ (4,522,747)            
- ------------------------------------------------------------------------------- 

Net realized and unrealized loss on investments        $ (4,710,416)
- -------------------------------------------------------------------------------

Net increase in net assets from operations             $ 12,980,372             
- -------------------------------------------------------------------------------
</TABLE> 

                       See Notes to financial statements

                                      10


<PAGE>

Government Obligations Portfolio  as of June 30, 1997

FINANCIAL STATEMENTS CONT'D

Statements of Changes in Net Assets

<TABLE> 
<CAPTION> 
                                           Six Months Ended
Increase (Decrease)                        June 30, 1997     Year Ended         
in Net Assets                              (Unaudited)       December 31, 1996
- ------------------------------------------------------------------------------
<S>                                        <C>               <C>  
From operations --                                                              
    Net investment income                  $   17,690,788    $    37,858,369    
    Net realized loss on investments             (187,669)        (5,404,267)   
    Net change in unrealized             
       appreciation (depreciation)             (4,522,747)       (10,812,405)
- -------------------------------------------------------------------------------

Net increase in net assets 
    from operations                        $   12,980,372    $    21,641,697 
- -------------------------------------------------------------------------------
Capital transactions --
    Contributions                          $   77,668,092    $    66,333,513  
    Withdrawals                              (116,405,744)      (154,241,567) 
- -------------------------------------------------------------------------------

Net decrease in net assets from 
    capital transactions                   $  (38,737,652)   $   (87,908,054) 
- -------------------------------------------------------------------------------


Net decrease in net assets                 $  (25,757,280)   $   (66,266,357) 
- -------------------------------------------------------------------------------


Net Assets
- -------------------------------------------------------------------------------
At beginning of period                       $455,522,548       $521,788,905 
- -------------------------------------------------------------------------------
At end of period                             $429,765,268       $455,522,548 
- -------------------------------------------------------------------------------
</TABLE> 


                      See notes for Financial statements

                                      11

<PAGE>

Government Obligations Portfolio as of June 30, 1997

FINANCIAL STATEMENTS CONT'D

Supplementary Data

<TABLE> 
<CAPTION> 
                                                              SIX MONTHS ENDED                                                     
                                                              JUNE 30, 1997                 YEAR ENDED DECEMBER 31,                
                                                                                ---------------------------------------------------
                                                              (UNAUDITED)         1996         1995          1994         1993*    
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                           <C>               <C>          <C>           <C>           <C> 
Ratios to average daily net assets
- -----------------------------------------------------------------------------------------------------------------------------------
Expenses                                                             0.83%+         0.83%        0.84%         0.81%         0.87%+
Net investment income                                                8.07%+         7.88%        7.82%         8.03%         8.46%+

Portfolio Turnover                                                      4%            11%          19%           35%           42%
- -----------------------------------------------------------------------------------------------------------------------------------

Net assets, end of period (000s omitted)                         $429,765       $455,523     $521,789      $515,670      $537,297
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

*   For the period from the start of business, October 28, 1993, to December 31,
    1993.

+   Annualized.

                       See notes to financial statements

                                      12
<PAGE>
 
Government Obligations Portfolio  as of June 30, 1997

NOTES TO FINANCIAL STATEMENTS (Unaudited)


1   Significant Accounting Policies
    ----------------------------------------------------------------------------
    Government Obligations Portfolio (the Portfolio) is registered under the
    Investment Company Act of 1940 as a diversified open-end investment company
    which was organized as a trust under the laws of the State of New York in
    1992. The Declaration of Trust permits the Trustees to issue beneficial
    interests in the Portfolio. The following is a summary of significant
    accounting policies of the Portfolio. The policies are in conformity with
    generally accepted accounting principles.

    A Investment Valuation -- Mortgage backed, "pass-through" securities are
    valued using a matrix pricing system which takes into account closing bond
    valuations, yield differentials, anticipated prepayments, and interest
    rates. Debt securities (other than mortgage backed, "pass-through"
    securities) are normally valued at the mean between the latest available bid
    and asked prices for securities for which the over-the-counter market is the
    primary market. Debt securities may also be valued on the basis of
    valuations furnished by a pricing service. Options are valued at last sale
    price on a U.S. exchange or board of trade or, in the absence of a sale, at
    the mean between the last bid and asked price. Financial futures contracts
    listed on commodity exchanges are valued at closing settlement prices.
    Securities for which there is no such quotation or valuation are valued at
    fair value using methods determined in good faith by or at the direction of
    the Trustees. Short-term obligations having remaining maturities of less
    than 60 days are valued at amortized cost, which approximates value.

    B Income -- Interest income is determined on the basis of interest accrued
    and discount earned, adjusted for amortization of discount when required for
    federal income tax purposes.

    C Gains and Losses From Security Transactions -- For book purposes, gains or
    losses are not recognized until disposition. For federal tax purposes, the
    Portfolio has elected, under Section 1092 of the Internal Revenue Code, to
    utilize mixed straddle accounting for certain designated classes of
    activities involving options and financial futures contracts in determining
    recognized gains or losses. Under this method, Section 1256 positions
    (financial futures contracts and options on investments or financial futures
    contracts) and non-Section 1256 positions (bonds, etc.) are marked-to market
    on a daily basis resulting in the recognition of taxable gains or losses on
    a daily basis. Such gains or losses are categorized as short-term or
    long-term based on aggregation rules provided in the Code.

    D Income Taxes -- The Portfolio is treated as a partnership for federal tax
    purposes. No provision is made by the Portfolio for federal or state taxes
    on any taxable income of the Portfolio because each investor in the
    Portfolio is ultimately responsible for the payment of any taxes. Since some
    of the Portfolio's investors are regulated investment companies that invest
    all or substantially all of their assets in the Portfolio, the Portfolio
    normally must satisfy the applicable source of income and diversification
    requirements (under the Code) in order for its investors to satisfy them.
    The Portfolio will allocate at least annually among its investors each
    investors' distributive share of the Portfolio's net investment income, net
    realized capital gains, and any other items of income, gain, loss, deduction
    or credit.

    E Written Options -- Upon the writing of a call or a put option, an amount
    equal to the premium received by the Portfolio is included in the Statement
    of Assets and Liabilities as a liability. The amount of the liability is
    subsequently marked-to-market to reflect the current value of the option
    written in accordance with the Portfolio's policies on investment valuations
    discussed above. Premiums received from writing options which expire are
    treated as realized gains. Premiums received from writing options which are
    exercised or are closed are added to or offset against the proceeds or
    amount paid on the transaction to determine the realized gain or loss. If a
    put option is exercised, the premium reduces the cost basis of the
    securities purchased by the Portfolio. The Portfolio, as writer of an
    option, may have no control over whether the underlying securities may be
    sold (call) or purchased (put) and, as a result, bears the market risk of an
    unfavorable change in the price of the securities underlying the written
    option.

    F Purchased Options -- Upon the purchase of a call or put option, the
    premium paid by the Portfolio is included in the Statement of Assets and
    Liabilities as an investment. The amount of the investment is subsequently
    marked-to-market to reflect the current market value of the option
    purchased, in accordance with the Portfolio's policies on investment
    valuations discussed above. If an option which the Portfolio has purchased
    expires on the stipulated expiration date, the Portfolio will realize a loss
    in the amount of the cost of the option. If the Portfolio enters into a
    closing sale transaction, the Portfolio will realize a gain or loss,
    depending on whether the sales proceeds from the closing sale transaction
    are greater or less than the cost of the option. If a Portfolio exercises a
    put option, it will realize a gain or loss from the sale of the underlying

                                       13
<PAGE>
 
    security, and the proceeds from such sale will be decreased by the premium
    originally paid. If the Portfolio exercises a call option, the cost of the
    security which the Portfolio purchases upon exercise will be increased by
    the premium originally paid. For tax purposes, the Portfolio's options are
    generally subject to the mixed straddle rules described in Note IC, and
    unrealized gains or losses are recognized on a daily basis.

    G Financial Futures Contracts -- Upon entering into a financial futures
    contract, the Portfolio is required to deposit an amount ("initial margin")
    either in cash or securities equal to a certain percentage of the purchase
    price indicated in the financial futures contract. Subsequent payments are
    made or received by the Portfolio ("margin maintenance") each day, dependent
    on the daily fluctuations in the value of the underlying securities, and are
    recorded for book purposes as unrealized gains or losses by the Portfolio.

    If the Portfolio enters into a closing transaction, the Portfolio will
    realize, for book purposes, a gain or loss equal to the difference between
    the value of the financial futures contract to sell and the financial
    futures contract to buy. The Portfolio's investment in financial futures
    contracts is designed only to hedge against anticipated future changes in
    interest or currency exchange rates. Should interest or currency exchange
    rates move unexpectedly, the Portfolio may not achieve the anticipated
    benefits of the financial futures contracts and may realize a loss. For tax
    purposes, such futures contracts are generally subject to the mixed straddle
    rules described in Note IC, and unrealized gains or losses are recognized on
    a daily basis.

    H Deferred Organization Expenses -- Costs incurred by the Portfolio in
    connection with its organization are being amortized on the straight-line
    basis over five years.

    I Expense Reduction -- Investors Bank & Trust Company (IBT) serves as
    custodian of the Portfolio. Pursuant to the custodian agreement, IBT
    receives a fee reduced by the credits which are determined based on the
    average cash balances the Portfolio maintains with IBT. All significant
    credit balances used to reduce the Portfolio's custodian fees are reflected
    as a reduction of operating expense on the statement of operations.

    J Other -- Investment transactions are accounted for on the date the
    investments are purchased or sold.

    K Use of 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 at the date of the financial statements and the reported amounts
    of income and expense during the reporting period. Actual results could
    differ from those estimates.

    L Interim Financial Information -- The interim financial statements relating
    to June 30, 1997 and the six month period then ended have not been audited
    by independent certified public accountants, but in the opinion of the
    Fund's management reflect all adjustments, consisting only of normal
    recurring adjustments, necessary for the fair presentation of the financial
    statements.

2   Purchases and Sales of Investments
    ----------------------------------------------------------------------------
    Purchases, sales and paydowns of investments, other than short-term
    obligations, aggregated $19,589,772, $4,035,404 and $41,353,683,
    respectively.

3   Investment Adviser Fee and Other Transactions with Affiliates
    ----------------------------------------------------------------------------
    The investment adviser fee, computed at the monthly rate of 0.0625% (0.75%
    per annum) of the Portfolio's average daily net assets up to $500 million
    and at reduced rates as daily net assets exceed that level, is earned by
    Boston Management and Research (BMR), a wholly-owned subsidiary of Eaton
    Vance Management (EVM), as compensation for management and investment
    advisory services rendered to the Portfolio. For the six months ended June
    30, 1997, the fee was equivalent to 0.75% (annualized) of the Portfolio's
    average net assets for such period and amounted to $1,658,818. Except as to
    Trustees of the Portfolio who are not members of EVM's or BMR's
    organization, officers and Trustees receive remuneration for their services
    to the Portfolio out of such investment adviser fee. Certain of the officers
    and Trustees of the Portfolio are officers and directors/trustees of the
    above organizations. Trustees of the Portfolio that are not affiliated with
    the Investment Adviser may elect to defer receipt of all or a percentage of
    their annual fees in accordance with the terms of the Trustees Deferred
    Compensation Plan. For the six months ended June 30, 1997, no significant
    amounts have been deferred.

                                       14
<PAGE>

Government Obligations Portfolio as of June 30, 1997

NOTES TO FINANCIAL STATEMENTS (Unaudited) Cont'd 


4   Line of Credit
    ----------------------------------------------------------------------------
    The Portfolio participates with other portfolios and funds managed by BMR
    and EVM and its affiliates in a committed $120 million unsecured line of
    credit agreement with a group of banks. The Portfolio may temporarily borrow
    from the line of credit to satisfy redemption requests or settle investment
    transactions. Interest is charged to each portfolio or fund based on its
    borrowings at an amount above the bank's adjusted certificate of deposit
    rate, eurodollar rate or federal funds rate. In addition, a fee computed at
    an annual rate of 0.15% on the daily unused portion of the line of credit is
    allocated among the participating Portfolios and funds at the end of each
    quarter. The average daily loan balance was $361,685 and the average
    interest rate was 4.2%. The maximum borrowing outstanding at any time during
    the six months ended June 30, 1997 was $3,621,000.

5   Securities Lending Agreement
    ----------------------------------------------------------------------------
    The Portfolio has established a securities lending agreement with a broker
    in which the Portfolio lends portfolio securities to the broker in exchange
    for collateral consisting of either cash or U.S. government securities.
    Under the agreement, the Portfolio continues to earn interest on the
    securities loaned. If the collateral received is U.S. government securities,
    the Portfolio will also receive from the broker an additional loan premium
    fee computed as a varying percentage of the market value of the securities
    loaned. If the collateral received is cash, the Portfolio may invest the
    cash and receive any interest on the amount invested but it must also pay
    the broker a loan rebate fee computed as a varying percentage of the
    collateral received. The Portfolio did not receive any loan premium fee
    during the six months ended June 30, 1997. The loan rebate fee paid by the
    Fund offsets a portion of the interest income received. At June 30, 1997,
    the value of the securities loaned and the value of the collateral amounted
    to $56,356,240 and $59,619,200, respectively.

6   Federal Income Tax Basis of Investments
    ----------------------------------------------------------------------------
    The cost and unrealized appreciation/depreciation in value of the investment
    securities owned at June 30, 1997, as computed on a federal income tax
    basis, were as follows:

<TABLE> 
<CAPTION> 
         <S>                                            <C> 
         Aggregate cost                                 $ 480,811,297 
        --------------------------------------------------------------

         Gross unrealized appreciation                  $   6,576,758

         Gross unrealized depreciation                     (4,838,150)
        --------------------------------------------------------------

         Net unrealized appreciation                    $   1,738,608         
        --------------------------------------------------------------
</TABLE> 

7   Financial Instruments
    ----------------------------------------------------------------------------
    The Portfolio regularly trades in financial instruments with off-balance
    sheet risk in the normal course of its investing activities to assist in
    managing exposure to various market risks. These financial instruments
    include written options, forward foreign currency exchange contracts, and
    financial futures contracts and may involve, to a varying degree, elements
    of risk in excess of the amounts recognized for financial statement
    purposes. The notional or contractual amounts of these instruments represent
    the investment the Fund has in particular classes of financial instruments
    and does not necessarily represent the amounts potentially subject to risk.
    The measurement of the risks associated with these instruments is meaningful
    only when all related and offsetting transactions are considered.

    A summary of obligations under these financial instruments at June 30, 1997
    is as follows:

<TABLE> 
<CAPTION> 
    Futures Contracts
    ----------------------------------------------------------------------------

    Expiration                                             Net Unrealized
    Date           Contracts                  Position     Depreciation
    ----------------------------------------------------------------------------
    <S>            <C>                        <C>          <C> 
    9/97           1000 U.S. Treasury Five
                   Year Note Futures          Short        $ (1,013,734)
                                                                
    ----------------------------------------------------------------------------

                                                           $ (1,013,734)
    ----------------------------------------------------------------------------
</TABLE> 
 
    At June 30, 1997, the Portfolio had sufficient cash and/or securities to
    cover margin requirements on any open futures contracts.

                                       15
<PAGE>

EV Traditional Government Obligations Fund as of June 30, 1997

INVESTMENT MANAGEMENT

EV Traditional Government Obligations Fund 

                Officers                          Independent Trustees 
                M. Dozier Gardner                 Donald R. Dwight  
                President                         President, Dwight Partners, 
                                                  Inc,              
                                                  Chairman, Newspapers of New 
                                                  England, Inc.               
                                                                              
                James B, Hawkes                                               
                Vice President and Trustee        Samuel L. Hayes, III        
                                                  Jacob H. Schiff Professor of
                                                  Investment   
                William H. Abern, Jr.             Banking, Harvard University 
                                                  Graduate School of     
                Vice President                    Business Administration
                                                                         
                Michael B. Terry                  Norton H. Reamer       
                Vice President                    President and Director, 
                                                  United Asset   
                                                  Management Corporation 
                                                                         
                James L. O'Connor                 John L. Thorndike      
                Treasurer                         Formerly Director, Fiduciary 
                                                  Company Incorporated   
                                                                         
                Alan R. Dynner                    Jack L. Treynor        
                Secretary                         Investment Adviser and 
                                                  Consultant     
                                                                 
Government Obligations Portfolio                                 
                                                                 
                Officers                          Independent Trustees 
                M. Dozier Gardner                 Donald R. Dwight  
                President                         President, Dwight Partners, 
                                                  Inc.             
                                                  Chairman, Newspapers of New 
                                                  England, Inc.   
                James B. Hawkes                                   
                Vice President and Trustee        Samuel L. Hayes, III   
                                                  Jacob H. Schiff Professor of 
                                                  Investment  
                Susan Schiff                      Banking, Harvard University 
                                                  Graduate School of         
                Vice President and                Business Administration  
                Portfolio Manager                                          
                                                  Norton H. Reamer         
                Mark S. Venezia                   President and Director, 
                                                  United Asset    
                Vice President                    Management Corporation 
                                                                         
                James L. O'Connor                 John L. Thorndike      
                Treasurer                         Formerly Director, Fiduciary
                                                  Company Incorporated 
                                                                      
                Alan R. Dynner                    Jack L. Treynor     
                Secretary                         Investment Adviser and 
                                                  Consultant   

                                      16
<PAGE>
 
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<PAGE>
 
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<PAGE>
 
                      THIS PAGE INTENTIONALLY LEFT BLANK
<PAGE>
 
Investment Adviser of
Government Obligations Portfolio
Boston Management and Research
24 Federal Street
Boston, MA02110


Administrator of EV Traditional
Government Obligations Fund
Eaton Vance Management
24 Federal Street
Boston, MA 02110


Principal Underwriter
Eaton Vance Distributors, Inc.
24 Federal Street
Boston, MA 02110
(617)482-8260


Custodian
Investors Bank & Trust Company
200 Clarendon Street, 16th Floor
Boston, MA 02116


Transfer Agent
First Data Investor Services Group
Attention:  Eaton Vance Funds
P.O. Box 5123
Westborough, MA 01581-5123








EV Traditional Government
Obligations Fund
24 Federal Street
Boston, MA 02110


- --------------------------------------------------------------------------------
This report must be preceded or accompanied by a current prospectus which
contains more complete information on the Fund, including its sales charges and
expenses. Please read the prospectus carefully before you invest or send money.
- --------------------------------------------------------------------------------
                                                                    T-GOSRC-8/97


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