CALVERT WORLD VALUES FUND INC
N-30D, 1996-06-10
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<PAGE>


 

                                                        Calvert
                                                        World Values
                                                        Global Equity
                                                        Fund
                                                        

                                                        Semi-Annual 
                                                        Report
                                                        March 31, 1996





                           Investing with Vision(TM)
                             [LOGO] Calvert Group
                        A member of The Acacia Group(R)
<PAGE>
 
                              CALVERT WORLD VALUES
                               GLOBAL EQUITY FUND

Dear Shareholder:

  This report covers performance results for the Calvert World Values Global
Equity Fund for the six-month period ending March 31, 1996.

  During this period the Fund returned 5.12%. Over the same period the return on
the Morgan Stanley Capital International (MSCI) World Index in dollars was 9.27%
and the return on the Lipper Global Fund Index was 6.29%.

Economic and Market Review

  The global trend toward moderate demand, low inflation, and falling interest
rates helped account for the steady performance from international markets in
the final quarter of calendar year 1995. During this same period, signs of a
slowing US economy were accompanied by a fall in demand in Europe, which allowed
interest rates in both regions to be trimmed.

  By early 1996, national economies were moving into the late stages of the
economic cycle, corporate cash generation was high, and, increasingly, liquidity
had become an important element in equity market progress.

  From a broader perspective, more than $120 billion flowed into the mutual fund
industry in 1995 and an additional $50 billion was added in the first two months
of 1996.

<TABLE> 
<CAPTION> 
                    Investment Performance
- ----------------------------------------------------------------
Periods Ended 3/31/96              6 Months            12 Months
- ----------------------------------------------------------------
<S>                                <C>                 <C>
                                            
Global Equity                         5.12%               14.33%
                                            
MSCI World Index                      9.27%               20.60%
</TABLE>

               Investment performance is for Class A shares and
         does not reflect the deduction of any front-end sales charge.

  This flow of cash had a positive impact on several international markets
during the period covered in this report. The Far East was a primary target.
Hong Kong and Singapore, two areas in which the portfolio is overweighted, were
up 16.0% and 14.9%, respectively.* The Hong Kong market was under pressure from
China's posturing over the Taiwanese presidential election, and also from the
"sinification" of its institutions vis-a-`vis its impending reversion to China
in 1997. However, following the election, both Taiwan and China showed a more
conciliatory tone, thus easing regional tensions. Energetic growth continues in
Singapore, which justifies the portfolio's overweight exposure there.

  Latin America also performed well during the period. Argentina led the way
with a rise of 18.2%. Mexico showed signs of recovery following the 1995
recession, with inflation lower than forecast and its trade account moving from
deficit to surplus. The Mexican market was up 6.2% for the six months.

*Unless otherwise stated, performance figures quoted refer to the MSCI country
index for the relevant market, in US dollars.

SEMI-ANNUAL REPORT (UNAUDITED)       CALVERT WORLD VALUES GLOBAL EQUITY FUND - 1
<PAGE>
 
  Europe's main feature during the period was the domestic slowdown, which was
most evident in Germany but spread to other "core" countries as well. In
December, German unemployment rose to 10% as exports weakened and
manufacturing contracted. With a high proportion of Germany's trade conducted
within the European region, the slowdown quickly spread to neighboring
countries. The Bundesbank cut interest rates, but the pressure on industry
forced companies throughout the region to reassess their viability. The main
threats were global competition and the lower costs of firms based outside
Europe. The result was an increase in corporate mergers, as exemplified by the
Sandoz/Ceiba Geigy merger in March. The markets responded well to these events
and have attempted to pick future merger candidates. This anticipated merger
activity led to strength during the period in Switzerland, up 17.4%; France, up
14.5%; and even Germany, up 7.2%.

  The UK also benefited from this trend ... until the market was faced with the
publicity surrounding BSE, the "mad cow disease." The main challenge:
determining how many cattle needed to be destroyed and the enormous cost of any
such move in terms of compensation to the farmers involved. Whatever the
outcome, it is clear there will be an increased burden on government finances,
which may rule out any additional tax cuts before the general election next
year. Further, until specific measures are enacted, sterling is likely to come
under pressure, as will the financial markets. During the period the market
returned a modest 3.3%.

  The Japanese market rose just 5.6%, with progress limited to the fourth
quarter of 1995. Traditionally, the first quarter of each year is a weak period
for Japanese markets and is characterized by corporate selling of stock prior to
the close of their fiscal year (the end of March). While 1996 was no exception,
Japanese markets were faced with an additional issue - the controversial
liquidation of housing loan companies. By late March, the issue appeared close
to resolution. In a related development, several city banks announced large
write-offs in their March 1996 results in an attempt to put bad loans from the
1980s behind them. With these technical issues largely resolved, the Japanese
market can now focus on the positive macroeconomic background: a steadily
recovering economy, rising corporate profits, and virtually no inflation.

Investment Strategy

  During the period we continued to underweight the US market. We felt that the
economy would slow dramatically and earnings would fall short of analysts'
expectations. Another fear was that the economy would regain momentum, fueling
inflation fears, and leading to downward pressure on stock prices. Both
scenarios played on the US market in the first quarter of 1996 as conflicting
reports on the progress of the economy were released. But investors continued to
pour money into stocks, which drove the market to new highs. Our view continues
to be that the situation is becoming less stable and that the US market
is looking more vulnerable. Indeed, there was a further scare when the Labor

2 - CALVERT WORLD VALUES GLOBAL EQUITY FUND       SEMI-ANNUAL REPORT (UNAUDITED)

<PAGE>
 
Department's numbers on job growth came in stronger than expected for February
and March 1996. This spurred fears that a strengthening economy might prevent
the Federal Reserve from cutting rates later this year. Accordingly, we are
continuing our underweight exposure to the US and will look for better value
elsewhere.

  Our analysis showed a deterioration in the earnings outlook for the
Scandinavian countries after the strong uptrend of 1994 and 1995. Accordingly,
we reduced exposure to the region, selling Tele Danmark and reduced our
investment in Tomra, the can recycler, which had performed exceptionally over
the last year. We also reduced the Fund's European holdings. For example, we cut
France from 5% of the portfolio to 3.5% with the sale of the software company,
Cap Gemeni Sogeti, and, after a strong run, part of the investment in the
retailer, Pinault-Printemps.

  Assets from these sales were switched into Japan, where exposure was raised
from 20% to 25%. We also increased our exposure to Hong Kong and Singapore.

Fund Social Investment Performance

  Portfolio holdings with positive social records include Kingfisher and Canon.
Kingfisher is a retailer based in the UK. One of the company's subsidiaries,
B&Q, was one of the first UK home improvement retailers to source its timber
from sustainably managed forests and buy timber from community-based forest
projects. The Japan-based Canon is primarily known for its photocopiers and
camera equipment. The company collects and recycles cartridges from printers and
develops lead-free optical glass for its cameras, which reduces environmental
damage caused by lead oxide. Canon's philosophy includes a responsibility to the
community in which it operates.

  Last year the Fund made a small investment in the Community Growth Fund (CGF),
South Africa's first socially responsible investment fund. Founded by several
South African trade unions, CGF has been instrumental in encouraging South
African companies towards better practices.

  Shareholder activism is an important strategy in our work. We often contact
company management to discuss our concerns. For example, in light of Mexico's
continuing economic crisis, Calvert's social research analysts held discussions
with management at Telefonos de Mexico on the continued effects of the 1994 peso
crisis and its impact on employees. We understand there were no layoffs during
this period and workers received modest wage increases.

Outlook

  Recent events reinforce our view that while the domestic US market has
provided investors with excellent returns through 1995, it is prudent to look to
the international markets to spread risk and look for higher returns in 1996. We
retain our preference for Far Eastern markets, where growth in economies
continues to drive earnings per share and index levels. We also believe that
cash flows from the US will continue to be an important factor, provided a
resurgence

SEMI-ANNUAL REPORT (UNAUDITED)       CALVERT WORLD VALUES GLOBAL EQUITY FUND - 3

<PAGE>
 
of growth does not prompt a hike in US interest rates. The second focus of our
strategy is the Japanese market. We believe it has the scope to move steadily
ahead, now that some of the major hurdles in the financial world have been
crossed. Although we are less committed to Europe than in the past, we believe
the region will perform well during 1996 as a result of European governments'
continuing support for weak economies through looser fiscal and monetary policy.

  We appreciate your investment in the Calvert World Values Global Equity Fund.

Sincerely,


/s/ Andrew Preston      /s/ Clifton S. Sorrell
Andrew Preston          Clifton S. Sorrell
Portfolio Manager       Chairman
April 30, 1996


4 - CALVERT WORLD VALUES GLOBAL EQUITY FUND       SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
                              PORTFOLIO STATISTICS

                           TEN LARGEST STOCK HOLDINGS
                              as of March 31, 1996

                                                              % of Net Assets
  ---------------------------------------------------------------------------
  Hysan Development                                                 2.9%
  Telecom Corp of New Zealand                                       2.3%
  Sun Hung Kai Properties                                           2.3%
  Keppel Corporation                                                2.2%
  National Australia Bank                                           2.0%
  WorldCom, Inc.                                                    2.0%
  Cardinal Health, Inc.                                             1.9%
  Sanwa Bank                                                        1.9%
  Canon, Inc.                                                       1.8%
  Overseas Chinese Bank                                             1.8%
                                                                   ----
   TOTAL                                                           21.1%
                                                                   ====

                          AVERAGE ANNUAL TOTAL RETURNS
                        for periods ended March 31, 1996

       CLASS A SHARES
        One Year                                               8.89%
        Since Inception (6/92)                                 6.95%

       CLASS C SHARES
        One Year                                              13.15%
        Since Inception (3/94)                                 2.06%

                             PERFORMANCE COMPARISON
              Comparison of change in value of $10,000 investment

                            [GRAPHIC APPEARS HERE]

                                                  6/92         3/96
                                                 -------      -------
         MSCI WORLD INDEX                        $10,000      $16,558
         CALVERT WORLD VALUES GLOBAL EQUITY      $10,000      $12,853

Total returns assume reinvestment of dividends and, for Class A shares, reflect
  the deduction of the Fund's maximum sales charge of 4.75%. No sales charge 
 has been applied to the index used for comparison. The value of an investment 
       in Class A shares is plotted in the line graph. The value of an 
            investment in Class C shares would be different. Past 
                performance is no guarantee of future results.

SEMI-ANNUAL REPORT (UNAUDITED)       CALVERT WORLD VALUES GLOBAL EQUITY FUND - 5
<PAGE>
 
                            STATEMENT OF NET ASSETS
                                 MARCH 31, 1996
<TABLE> 
<CAPTION> 

EQUITY SECURITIES - 94.4%              SHARES      VALUE
===========================================================
<S>                                    <C>       <C>
AUSTRALIA - 2.0%
National Australia Bank............    450,000   $4,008,752
                                                 ----------

AUSTRIA - 0.6%
Mayr-Melnhof Karton AG.............     27,180    1,190,805
                                                 ----------


ARGENTINA - 1.8%
Transportadora de Gas-(ADR)........    300,000    3,600,000
                                                 ----------


BELGIUM - 0.0%
GIB Holdings VVPR..................        454       20,083
                                                 ----------


COSTA RICA - 0.0%
Pro Fund International SA *+.......     98,196       98,196
                                                 ----------


FRANCE - 3.3%
Assur Gen de France................     61,745    1,716,365
Credit Foncier de France...........     43,875      548,830
Lyonnaise des Eaux SA..............      5,200      486,300
Pinault-Printemps Redoute SA.......      5,900    1,628,346
Primagaz Cie.......................      8,316      838,799
Primagaz Cie (Warrants)*...........        756       12,309
SITA...............................      6,830    1,337,142
                                                 ----------
                                                  6,568,091
                                                 ----------

GERMANY - 2.0%
Douglas Holdings AG................     44,850    1,534,190
Linde AG...........................      3,990    2,456,757
                                                 ----------
                                                  3,990,947
                                                 ----------

HONG KONG - 6.1%
Hong Kong Land Holdings............    750,000    1,800,000
Hysan Development..................  1,800,000    5,806,827
Sun Hung Kai Properties............    500,000    4,476,985
                                                 ----------
                                                 12,083,812
                                                 ----------

ITALY - 4.3%
Assic Generali.....................     79,900    1,783,471
IMI................................    354,400    2,423,981
Telecom Italia Mobile*.............  1,121,100    2,034,794
Telecom Italia Mobile (Di Risp)*...  2,050,000    2,255,946
                                                 ----------
                                                  8,498,192
                                                 ----------
</TABLE> 

6 - CALVERT WORLD VALUES GLOBAL EQUITY FUND       SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
<TABLE>
<CAPTION>
 
EQUITY SECURITIES (CONT'D)                    SHARES       VALUE
===================================================================
<S>                                         <C>          <C>
JAPAN - 25.0%
Canon, Inc...............................     192,000    $3,661,416
Futaba Corp..............................      67,000     3,031,439
Itochu Corp..............................     443,000     3,105,866
Keyence Corp.............................      26,000     3,075,149
Kuraray Co., Ltd.........................     292,000     3,139,051
Mori Seiki Co............................     151,000     3,190,091
Omron Corp...............................     143,000     3,168,123
Sanwa Bank...............................     184,000     3,698,060
Sekisui House, Ltd.......................     232,000     2,906,100
Sumitomo Bank............................     171,000     3,452,769
Sumitomo Trust & Banking.................     258,000     3,545,314
TDK Corp.................................      64,000     3,296,471
Teijin, Ltd..............................     472,000     2,603,225
Terumo Corp..............................     165,000     1,835,476
Tokyo Style Co...........................     206,000     3,408,460
Tsukishima Kikai.........................     124,000     2,526,946
                                                         ----------
                                                         49,643,956
                                                         ----------

MALAYSIA - 1.5%
Malayan Bank Berhad......................     315,000     2,938,340
                                                         ----------


MEXICO - 2.8%
Banpais SA-(ADR)*+.......................     100,000             0
Cifra SA de CV-(ADR).....................   1,500,000     1,996,950
Grupo Durango SA -(ADR)*.................     200,000     1,375,000
Telefonos de Mexico SA-(ADR).............      70,000     2,301,250
                                                         ----------
                                                          5,673,200
                                                         ----------

NETHERLANDS - 2.5%
Elsevier NV..............................     141,100     2,160,783
VNU......................................     169,050     2,813,919
                                                         ----------
                                                          4,974,702
                                                         ----------

NEW ZEALAND - 2.3%
Telecom Corp. of New Zealand.............   1,000,000     4,495,607
                                                         ----------

NORWAY - 0.0%
Tomra Systems............................       8,000        66,115
                                                         ----------

SINGAPORE - 5.9%
City Developments........................     150,000     1,331,960
Keppel Corporation.......................     480,000     4,364,566
Overseas Chinese Bank....................     270,000     3,625,062
United Overseas Land (Warrants)*.........   2,305,000     2,390,637
                                                         ----------
                                                         11,712,225
                                                         ----------
SOUTH AFRICA - 0.2%
Community Growth Fund*+..................     690,369       308,819
                                                         ----------
</TABLE>

SEMI-ANNUAL REPORT (UNAUDITED)       CALVERT WORLD VALUES GLOBAL EQUITY FUND - 7
<PAGE>
 
<TABLE>
<CAPTION>
 
EQUITY SECURITIES (CONT'D)                       SHARES         VALUE
========================================================================
<S>                                              <C>         <C>
SPAIN - 4.5%
Dragados & Construcciones SA..................   243,691     $ 3,308,378
General de Aguas de Barcelona SA..............    82,785       2,661,340
Vallehermoso SA...............................   170,440       3,062,331
                                                             -----------
                                                               9,032,049
                                                             -----------

UNITED KINGDOM - 9.4%
Allied Irish Banks, Plc.......................   636,100       3,237,780
Argyll Group, Plc.............................   200,000         937,118
Beazer Homes, Plc.............................   212,000         598,596
British Telecom, Plc..........................    85,000         479,682
Cable & Wireless, Plc.........................    85,000         691,468
Commercial Union, Plc.........................    65,000         564,484
Dalgety, Plc..................................   235,000       1,474,130
EMAP, Plc.....................................   150,000       1,472,070
Glynwed International, Plc....................   125,000         682,998
Hays, Plc.....................................   110,000         681,624
Johnson Matthey...............................    73,000         630,059
Kingfisher, Plc...............................   175,000       1,519,765
Lloyds TSB Group, Plc.........................   184,000         881,807
Low and Bonar, Plc............................   125,000       1,084,592
Marks & Spencer, Plc..........................    75,000         481,914
McBride, Plc.*................................   330,000         695,055
National Westminster, Plc.....................   115,000       1,115,423
Powerscreen International, Plc................    49,000         325,320
Severn Trent, Plc.............................   115,000       1,041,705
                                                             -----------
                                                              18,595,590
                                                             -----------

UNITED STATES - 20.2%
Calypte Biomedical (Warrants)*................    50,000         250,000
Cardinal Health, Inc..........................    60,000       3,855,000
Dallas Semiconductor Corp.....................    90,000       1,653,750
Enron Corp....................................    60,000       2,212,500
Great Western Financial Corp. (Rights)*.......   125,000       3,015,625
Household International, Inc..................    43,000       2,891,750
Illinois Tool Works, Inc......................    34,000       2,197,250
La Quinta Inns, Inc...........................    75,000       2,203,125
MBNA Corp.....................................   105,000       3,110,625
McGraw Hill Cos., Inc.........................    34,000       2,949,500
Metrocall, Inc.*..............................    52,000       1,079,000
Molex, Inc. (Class A).........................    87,500       2,800,000
Partnerre, Ltd................................    85,000       2,528,750
Quadrant Holdings Cambridge*..................   200,000         228,938
Quorum Health Group, Inc.*....................   110,000       2,585,000
Seitel, Inc.*.................................    95,000       2,576,875
WorldCom, Inc.*...............................    84,687       3,895,602
                                                             -----------
                                                              40,033,290
                                                             -----------

Total Equity Securities (Cost $178,334,902)...               187,532,771
                                                             -----------
</TABLE>


8 - CALVERT WORLD VALUES GLOBAL EQUITY FUND       SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
<TABLE>
<CAPTION>
 
                                                                          PRINCIPAL
CORPORATE NOTES - 0.9%                                                      AMOUNT      VALUE
=================================================================================================
<S>                                                                        <C>       <C>
BOLIVIA - 0.1%
Banco Solidario SA...................................................      $286,275  $    286,275
                                                                                     ------------
UNITED STATES - 0.8%
Accion International.................................................       100,000        98,078
Cascadia Revolving Loan Fund.........................................       125,000       124,805
Catholic Relief Services.............................................       150,000       145,377
Community Equity Investments.........................................       200,000       190,672
Delaware Valley Community Reinvestment Fund..........................        75,000        73,558
Ecumenical Development Corporation USA...............................       150,000       141,936
Enterprise Loan Fund.................................................        50,000        47,668
Foundation For International Community Assistance....................        50,000        49,912
Foundation For International Development.............................       100,000        98,078
Freedom From Hunger..................................................        50,000        49,125
Global Partners......................................................        60,000        58,132
Program for Appropriate Technology & Health..........................       150,000       149,781
Minnesota Non-Profit Assistance Fund.................................       100,000        99,844
New Mexico Community Loan Fund.......................................        25,000        24,576
Nicaraquan Community Loan Fund.......................................        25,000        24,563
Societe D'Investissement et de Developpement International...........       100,000        98,418
                                                                                     ------------
                                                                                        1,474,523
                                                                                     ------------

 Total Corporate Notes (Cost $1,796,275)+............................                   1,760,798
                                                                                     ------------

TIME DEPOSITS - 3.9%
=================================================================================================
International Bank of Japan, London, 5.25%, 4/2/96...................     7,681,231     7,681,231
                                                                                     ------------

 Total Time Deposits (Cost $7,681,231)...............................                   7,681,231
                                                                                     ------------

 TOTAL INVESTMENTS (Cost $187,812,408) - 99.2%.......................                 196,974,800
 Other assets and liabilities, net - 0.8%............................                   1,566,511
                                                                                     ------------
 Net Assets - 100%...................................................                $198,541,311
                                                                                     ============
NET ASSETS CONSIST OF:
=================================================================================================
Par value and paid-in capital applicable to the following shares of
 common stock, 250,000,000 shares of $0.01 par value authorized
 for Class A and Class C combined:
  Class A: 10,720,872 shares outstanding.............................                $181,014,321
  Class C: 370,615 shares outstanding................................                   6,528,620
Undistributed net investment income..................................                    (303,310)
Accumulated net realized gain (loss) on investments
 and foreign currencies..............................................                   2,162,844
Net unrealized appreciation (depreciation) on investments
 and assets and liabilities in foreign currencies....................                   9,138,836
                                                                                     ------------
  Net assets.........................................................                $198,541,311
                                                                                     ============

NET ASSET VALUE PER SHARE
=================================================================================================
Class A (based on net assets of $192,019,812)........................                $      17.91
                                                                                     ============
Class C (based on net assets of $6,521,499)..........................                $      17.60
                                                                                     ============
</TABLE>
+  Restricted securities representing 1.1% of net assets.
*  Non-income producing.
See notes to financial statements.

SEMI-ANNUAL REPORT (UNAUDITED)       CALVERT WORLD VALUES GLOBAL EQUITY FUND - 9
<PAGE>
 
                            STATEMENT OF OPERATIONS
                        SIX MONTHS ENDED MARCH 31, 1996
<TABLE>
<CAPTION>
 
NET INVESTMENT INCOME
=============================================================================
<S>                                                               <C>
Investment Income
 Dividend income (net of foreign taxes withheld of $121,226)...   $1,368,353
 Interest income...............................................      157,026
                                                                  ----------
  Total investment income......................................    1,525,379
                                                                  ----------

Expenses
 Investment advisory fee.......................................      977,135
 Transfer agency fees and expenses.............................      290,266
 Distribution plan expenses:
  Class A......................................................      236,613
  Class C......................................................       30,683
 Directors' fees and expenses..................................       21,624
 Administrative fees...........................................       97,713
 Custodian fees................................................      124,447
 Registration fees.............................................        8,233
 Reports to shareholders.......................................      100,666
 Professional fees.............................................        3,145
 Miscellaneous.................................................       62,927
                                                                  ----------
  Total expenses...............................................    1,953,452
  Fees paid indirectly.........................................     (124,447)
                                                                  ----------
   Net expenses................................................    1,829,005
                                                                  ----------
    NET INVESTMENT INCOME......................................     (303,626)
                                                                  ----------

REALIZED AND UNREALIZED GAIN (LOSS) ON
INVESTMENTS
=============================================================================
Net realized gain (loss) on:
 Securities....................................................    3,268,369
 Foreign currencies............................................      (13,549)
                                                                  ----------
                                                                   3,254,820

Change in unrealized appreciation or depreciation on:
 Securities....................................................    6,717,871
 Assets and liabilities in foreign currencies..................       (8,748)
                                                                  ----------
                                                                   6,709,123
                                                                  ----------

   NET REALIZED AND UNREALIZED GAIN (LOSS)
   ON INVESTMENTS..............................................    9,963,943
                                                                  ----------

   INCREASE (DECREASE) IN NET ASSETS
   RESULTING FROM OPERATIONS...................................   $9,660,317
                                                                  ==========
</TABLE>
See notes to financial statements.

10 - CALVERT WORLD VALUES GLOBAL EQUITY FUND      SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>

                      STATEMENTS OF CHANGES IN NET ASSETS


<TABLE>                                                         SIX MONTHS
<CAPTION>                                                          ENDED       YEAR ENDED
                                                                 MARCH 31,    SEPTEMBER 30,
INCREASE (DECREASE) IN NET ASSETS                                  1996           1995
===========================================================================================
<S>                                                            <C>            <C>
Operations
 Net investment income (loss)................................  $   (303,626)  $  1,203,211
 Net realized gain (loss)....................................     3,254,820      4,007,986
 Change in unrealized appreciation or
  depreciation...............................................     6,709,123      1,101,087
                                                                              ------------
  INCREASE (DECREASE) IN NET ASSETS
  RESULTING FROM OPERATIONS..................................     9,660,317      6,312,284
                                                                              ------------

Distributions to shareholders from
 Net investment income:
  Class A Shares.............................................    (1,473,932)        (2,494)
  Class C Shares.............................................           (73)            --
 Net realized gain:
  Class A Shares.............................................    (4,677,990)    (8,976,058)
  Class C Shares.............................................      (152,211)      (251,801)
                                                                              ------------
 Total distributions.........................................    (6,304,206)    (9,230,353)
                                                                              ------------

Capital share transactions:
 Shares sold:
  Class A Shares.............................................    15,017,329     46,195,309
  Class C Shares.............................................       902,717      3,608,598
 Reinvestment of distributions:
  Class A Shares.............................................     5,620,032      8,979,242
  Class C Shares.............................................       146,256        252,415
 Shares redeemed:
  Class A Shares.............................................   (23,441,691)   (36,309,658)
  Class C Shares.............................................      (706,488)    (1,324,206)
                                                                              ------------
 Total capital share transactions............................    (2,461,845)    21,401,700
                                                                              ------------

TOTAL INCREASE (DECREASE)
IN NET ASSETS................................................       894,266     18,483,631

NET ASSETS
===========================================================================================

 Beginning of period.........................................   197,647,045    179,163,414
                                                                              ------------
 End of period (including undistributed net investment
  income (loss) of $(303,310) and $1,474,321, respectively)..  $198,541,311   $197,647,045 
                                                                              ============
</TABLE>
See notes to financial statements.

SEMI-ANNUAL REPORT (UNAUDITED)      CALVERT WORLD VALUES GLOBAL EQUITY FUND - 11
<PAGE>
 
                         NOTES TO FINANCIAL STATEMENTS


NOTE A--SIGNIFICANT ACCOUNTING POLICIES

GENERAL:  The Calvert Global Equity Fund (the "Fund"), a series of Calvert World
Values Fund, Inc., is registered under the Investment Company Act of 1940 as a
diversified, open-end management investment company. The operations of each
series are accounted for separately. The Fund offers Class A and Class C shares
of capital stock. Class A shares are sold with a maximum front-end sales charge
of 4.75%. Class C shares, which have no transaction-based sales charge, have a
higher annual expense rate than Class A. Each class has different: (a) dividend
rates due to differences in Distribution Plan expenses and other class specific
expenses, (b) exchange privileges and (c) class specific voting rights.

SECURITY VALUATION:  Securities listed or traded on a national securities
exchange are valued at the last reported sale price. Unlisted securities and
listed securities for which the last sale price is not available are valued at
the most recent bid price or based on a yield equivalent obtained from the
securities' market maker. Foreign security prices, furnished by quotation
services in the security's local currency, are translated using the current U.S.
dollar exchange rate. The Fund may invest in securities whose resale is subject
to restrictions. Restricted securities and other securities and assets for which
market quotations are not available or deemed inappropriate are valued in good
faith under the direction of the Board of Directors.

SECURITY TRANSACTIONS AND INVESTMENT INCOME:  Security transactions are
accounted for on trade date. Realized gains and losses are recorded on an
identified cost basis. Dividend income is recorded on the ex-dividend date or,
in the case of dividends on certain foreign securities, as soon as the Fund is
informed of the ex-dividend date. Interest income, accretion of discount and
amortization of premium are recorded on an accrual basis.

FOREIGN CURRENCY TRANSACTIONS:  The Fund's accounting records are maintained in
U. S. dollars. For valuation of assets and liabilities on each date of net asset
value determination, foreign denominations are translated into U.S. dollars
using the current exchange rate. Security transactions, income and expenses are
converted at the prevailing rate of exchange on the date of the event. The
effect of changes in foreign exchange rates on securities is included in the net
realized and unrealized gain or loss on securities.

DISTRIBUTIONS TO SHAREHOLDERS:  Distributions to shareholders are recorded by
the Fund on ex-dividend date. Dividends from net investment income and
distributions from net realized capital gains, if any, are paid at least
annually. Distributions are determined in accordance with income tax regulations
which may differ from generally accepted accounting principles; accordingly,
periodic reclassifications are made within the Fund's capital accounts to
reflect income and gains available for distribution under income tax
regulations.



12 - CALVERT WORLD VALUES GLOBAL EQUITY FUND      SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
Expense Offset Arrangement:  The Fund has an arrangement with its custodian bank
whereby the custodian's fees are paid indirectly by credits earned on the Fund's
cash on deposit with the bank. Such deposit arrangement is an alternative to
overnight investments.

Federal Income Taxes:  No provision for federal income or excise tax is required
since the Fund intends to continue to qualify as a regulated investment company
under the Internal Revenue Code and to distribute substantially all of its
earnings.

Note B--Related Party Transactions

Calvert Asset Management Company, Inc. (the "Advisor") is wholly-owned by
Calvert Group, Ltd. ("Calvert"), which is indirectly wholly-owned by Acacia
Mutual Life Insurance Company. The Advisor provides investment advisory services
and pays the salaries and fees of officers and affiliated Directors of the Fund.
For its services, the Advisor receives a monthly fee based on the following
annual rates of average daily net assets: 1.0% on the first $250 million, .975%
on the next $250 million and .925% on the excess of $500 million.

Calvert Distributors, Inc., an affiliate of the Advisor, is the distributor and
principal underwriter for the Fund. Distribution Plans, adopted by each class of
shares, allow the Fund to pay the distributor for expenses and services
associated with distribution of shares. The expenses paid may not exceed .35%
and 1.0% annually of average daily net assets of each Class A and Class C,
respectively.

The Distributor received $78,005 as its portion of commissions charged on sales
of the Fund's shares.

Calvert Shareholder Services, Inc., an affiliate of the Advisor, acts as
transfer, dividend disbursing and shareholder servicing agent for the Fund.

Calvert Administrative Services Company, an affiliate of the Advisor, provides
administrative services to the Fund for an annual fee, payable monthly, of the
greater of $40,000 or .10% of the average daily net assets of the Fund.

Each Director who is not affiliated with the Advisor receives an annual fee of
$3,000 plus $1,000 for each Board and Committee meeting attended. Additional
fees of up to $10,000 annually may be paid to the Chairperson of special
committees of the Board. Director's fees are allocated to each of the funds
served.


SEMI-ANNUAL REPORT (UNAUDITED)      CALVERT WORLD VALUES GLOBAL EQUITY FUND - 13
<PAGE>
 
Note C--Investment Activity

During the period, purchases and sales of investments, other than short-term
securities, were $68,097,698 and $80,445,840, respectively.

The cost of investments owned at March 31, 1996 was substantially the same for
federal income tax and financial reporting purposes. Net unrealized
apppreciation aggregated $9,162,392, of which $21,050,956 related to appreciated
securities and $11,888,564 related to depreciated securities.

Note D--Capital Shares

Transactions in shares of common stock were as follows:

<TABLE>
<CAPTION>
                                               Six Months     Year Ended
                                                 Ended       September 30,
Share Activity                               March 31, 1996      1995
- --------------------------------------------------------------------------
<S>                                          <C>             <C>
Class A:
  Shares sold..............................       856,719      2,695,201
  Reinvestment of distributions............       326,572        545,587
  Shares redeemed..........................    (1,338,144)    (2,120,350)
                                               ----------     ----------
    Net share activity.....................      (154,853)     1,120,438
                                               ==========     ==========

Class C:
  Shares sold..............................        52,382        213,899
  Reinvestment of distributions............         8,716         15,334
  Shares redeemed..........................       (41,191)       (81,268)
                                               ----------     ----------
    Net share activity.....................        19,907        147,965
                                               ==========     ==========
</TABLE>

14 - CALVERT WORLD VALUES GLOBAL EQUITY FUND      SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 

                             Financial Highlights

<TABLE>
<CAPTION>
                                                           Periods Ended
                                                 ----------------------------------
                                                  March 31,        September 30,
Class A Shares                                       1996         1995       1994
- -----------------------------------------------------------------------------------
<S>                                              <C>            <C>        <C>
Net asset value, beginning of period..........     $17.62         $17.99     $16.35
                                                 ============   =========  ==========
Income from investment operations
- ---------------------------------
 Net investment income........................       (.02)           .11         --
 Net realized and unrealized
  gain (loss) on investments..................        .89            .38       2.14
                                                 ------------   ---------  ----------
  Total from investment operations............        .87            .49       2.14
                                                 ------------   ---------  ----------
Distributions from
- ------------------
 Net investment income........................       (.14)            --       (.03)
 Excess of net investment income..............         --             --       (.04)
 Net realized gains...........................       (.44)          (.86)      (.43)
                                                 ------------   ---------  ----------
  Total distributions.........................       (.58)          (.86)      (.50)
                                                 ------------   ---------  ----------
Total increase (decrease) in net asset value..        .29           (.37)      1.64
                                                 ------------   ---------  ----------
Net asset value, end of period................     $17.91         $17.62     $17.99
                                                 ============   =========  ==========

Total return*.................................       5.12%          3.19%     13.44%
                                                 ============   =========  ==========
Ratios to average net assets:
 Net investment income (loss).................       (.27%)(a)       .68%      (.04%)
                                                 ============   =========  ==========
 Total expenses +.............................       1.96%(a)       1.93%        --
                                                 ============   =========  ==========
 Net expenses.................................       1.84%(a)       1.79%      1.96%
                                                 ============   =========  ==========
 Expenses reimbursed..........................         --             --        .04%
                                                 ============   =========  ==========
Portfolio turnover............................         36%            73%        78%
                                                 ============   =========  ==========
Net assets, end of period (in thousands)......   $192,020       $191,586   $175,543
                                                 ============   =========  ==========
Number of shares outstanding at
 end of period (in thousands).................     10,721         10,876      9,755
                                                 ============   =========  ==========
</TABLE>


<TABLE>
<CAPTION>
                                                                    Periods Ended
                                                                ---------------------
                                                                   September 30,
Class A Shares                                                    1993     1992/(1)/
- -------------------------------------------------------------------------------------
<S>                                                             <C>        <C>
Net asset value, beginning of period.........................     $14.31     $15.00
                                                                =========  ==========
Income from investment operations
- ---------------------------------
 Net investment income.......................................        .08        .02
 Net realized and unrealized gain (loss) on investments......       2.04       (.71)
                                                                ---------  ----------
  Total from investment operations...........................       2.12       (.69)
                                                                ---------  ----------
Distributions from
- ------------------
 Net investment income.......................................       (.05)        --
 Net realized gains..........................................       (.03)        --
                                                                ---------  ----------
  Total distributions........................................       (.08)        --
                                                                ---------  ----------
Total increase (decrease) in net asset value.................       2.04       (.69)
                                                                ---------  ----------
Net asset value, end of period...............................     $16.35     $14.31
                                                                =========  ==========

Total return*................................................      14.95%     (4.60%)
                                                                =========  ==========
Ratios to average net assets:
 Net investment income (loss)................................        .80%      1.23%(a)
                                                                =========  ==========
 Total expenses +............................................         --         --
                                                                =========  ==========
 Net expenses................................................       1.50%      1.01%(a)
                                                                =========  ==========
 Expenses reimbursed.........................................        .20%       .60%(a)
                                                                =========  ==========
Portfolio turnover...........................................         35%        --
                                                                =========  ==========
Net assets, end of period (in thousands).....................    $54,280     $8,440
                                                                =========  ==========
Number of shares outstanding at end of period (in thousands).      3,319        590
                                                                =========  ==========
</TABLE>

SEMI-ANNUAL REPORT (UNAUDITED)    CALVERT WORLD VALUES GLOBAL EQUITY FUND - 15
<PAGE>
 

<TABLE>
<CAPTION>
                                                              Periods Ended
                                                 ---------------------------------------
                                                  March 31,          September
Class C Shares                                       1996         1995     1994/(2)/
- ----------------------------------------------------------------------------------------
<S>                                              <C>            <C>        <C>
Net asset value, beginning of period..........     $17.28         $17.86     $18.24
                                                 ============   =========  =============
Income from investment operations
- ---------------------------------
 Net investment income........................       (.11)          (.05)      (.06)
 Net realized and unrealized gain
  (loss) on investments.......................        .87            .32       (.32)
                                                 ------------   ---------  -------------
  Total from investment operations............        .76            .27       (.38)
                                                 ------------   ---------  -------------
Distributions from
- ------------------
 Net realized gains...........................       (.44)          (.85)        --
                                                 ------------   ---------  -------------
  Total distributions.........................       (.44)          (.85)        --
                                                 ------------   ---------  -------------
Total increase (decrease) in net asset value..        .32           (.58)      (.38)
                                                 ------------   ---------  -------------
Net asset value, end of period................     $17.60         $17.28     $17.86
                                                 ============   =========  =============

Total return*.................................       4.45%          1.95%     (1.27%)
                                                 ============   =========  =============
Ratios to average net assets:
 Net investment income (loss).................      (1.42%)(a)      (.47%)    (1.16%)(a)
                                                 ============   =========  =============
 Total expenses +.............................       3.12%(a)       3.12%        --
                                                 ============   =========  =============
 Net expenses.................................       2.99%(a)       2.99%      3.32%(a)
                                                 ============   =========  =============
 Expenses reimbursed..........................         --            .13%       .50%(a)
                                                 ============   =========  =============
Portfolio turnover............................         36%            73%        78%
                                                 ============   =========  =============
Net assets, end of period (in thousands)......     $6,521         $6,061     $3,620
                                                 ============   =========  =============
Number of shares outstanding at
 end of period (in thousands).................        371            351        203
                                                 ============   =========  =============
</TABLE>

(a)  Annualized
*    Total return is not annualized for periods of less than one year and does
     not reflect deduction of Class A front-end sales charge.
+    Effective September 30, 1995, this ratio reflects total expenses before
     reduction for fees paid indirectly; such reductions are included in the
     ratio of net expenses.
(1)  From July 2, 1992, inception.
(2)  From March 1, 1994, inception.

16 - CALVERT WORLD VALUES GLOBAL EQUITY FUND      SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
                                    CALVERT
                           CAPITAL ACCUMULATION FUND

Dear Shareholder:

  This report for the Calvert Capital Accumulation Fund covers the six-months
ending March 31, 1996, a period when the stock market continued to record new
all-time highs. But as the period progressed, the market's upward trend was
marked by increasingly volatile swings. The Standard & Poor's 500/(R)/ Index, a
broad-based measure of leading common stocks, gained 11.70%. The larger
capitalization stocks provided superior relative performance during the period.
Conversely, many small caps in the technology sector -- a winner for much of
1995--performed poorly.

FUND PERFORMANCE
 
  Investors in the Calvert Capital Accumulation Fund realized a return of -1.99%
versus 7.67% for the Standard & Poor's 400 Mid-Cap Index and 7.41% for the
Russell 2000 for this six-month period. The Fund suffered due to its high
exposure to smaller capitalization technology stocks. The returns for the Fund's
three investment managers were: Apodaca-Johnston, -5.60%; Brown Capital
Management, 8.65%; and Fortaleza Asset Management, -3.53%.


                             INVESTMENT PERFORMANCE
<TABLE>
<CAPTION>
 
Periods Ended 3/31/96      6 Months   12 Months
- -----------------------------------------------
<S>                        <C>        <C> 
 Capital Accumulation
   Fund                     -1.99%      26.84%
 
 S&P MidCap 400              7.67%      28.61%
 
 Russell 2000                7.41%      29.09%
 
</TABLE>
                Investment performance is for Class A shares and
         does not reflect the deduction of any front-end sales charge.


FUND MANAGERS' APPROACH

APODACA-JOHNSTON CAPITAL MANAGEMENT, INC.

  Apodaca-Johnston's investment approach continues to emphasize unique, niche
companies experiencing accelerating earnings growth, solid balance sheets (low
debt), and strong relative price strength. Typically, these companies have
market capitalizations (share price times number of shares outstanding) of less
than $600 million.

  During the period, the Apodaca-Johnston portfolio was weighted among several
sectors, including networking, healthcare, and information systems. Among the
networking group, key holdings included Westell, Amati, Act Networks, and PCOM 
- -- firms that provide telecommunications equipment for the regional Bells and
other phone companies.



SEMI-ANNUAL REPORT (UNAUDITED)             CALVERT CAPITAL ACCUMULATION FUND - 1
<PAGE>
 
  Mecon and Imnet Systems were among the favorites in overlapping subsets of the
information systems and healthcare areas. These firms specialize in the
development of communication systems among physician groups and hospitals around
the nation for the exchange of patients records and related diagnostic data. We
project explosive growth for these firms over the next two to three years.

  About ten years ago we took note of institutional investors that funneled
massive amounts of new capital into biotech firms. Now we're reaping the fruits
of these ventures. The speedup in approvals by the Food and Drug Administration
has made many of these companies even more attractive. We particularly like are 
Neurogen (for its new cancer medication targeting neurological abnormalities)
and QLT Phototherapeutics (for its new drugs for treating a variety of cancers).

  Apodaca-Johnston's outlook for the market over the near term is for continued
volatility. Nevertheless, our approach remains focused on leading firms with
good fundamentals. By doing so, while we're not expecting a repeat of 1995's
results, we do anticipate reasonable gains for the Fund in 1996.

BROWN CAPITAL MANAGEMENT, INC.

  Brown Capital Management buys growth companies at a reasonable price.
Typically, these are superior firms in terms of their management, earnings-per-
share growth prospects, and profitability.

  In the last period, our heaviest weightings continued to be in financial
services and technology. In the financial sector, we have identified such
exceptional companies as AFLAC, Green Tree Financial, and T. Rowe Price. We
noted that some of our best and worst performers were in the technology area:
our three best -- Sterling Software, Cisco Systems, and ALZA; our three worst --
DSC Communications, Vishay Intertechnology, and Cheyenne Software.

  Productivity enhancement remains important to our investment strategy. Such
companies as EMC Corporation and Microsoft fit this theme, as does Scherer
(R.P.), a technology-based provider of drug delivery systems. We also believe
that an aging population bodes well for the healthcare and long-term care
industries. In these areas, our picks include Cardinal Health, a distributor of
healthcare products, and Health Care & Retirement in the long-term care segment.

  A growing number of Americans are preparing for their golden years by
investing in equity mutual funds. Corporate America has added significantly to
equity demand by competing with the public through a record level of share
repurchase programs, and by acquiring whole companies at premium prices. Despite
this upward pressure on stocks, we will continue to temper our picks with
sobriety based on our time-tested principles.

FORTALEZA ASSET MANAGEMENT, INC.

  Fortaleza's investment approach focuses on small-capitalization growth
companies. During the last period, our sector weightings were concentrated in
healthcare, technology, and retail. Among the stocks that contributed most

2 - CALVERT CAPITAL ACCUMULATION FUND             SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
strongly to our performance were Verifone, Atlantic Coast Airlines, Corporate
Express, HCIA, Healthsource, Input/Output, American Home Patient, CRA Managed
Care, Callaway Golf, Cotelligent, and Marisa Christina.

  On the negative side, most of our technology issues were under pressure,
particularly the semiconductor equipment manufacturers. We expect the turbulence
that has plagued the technology sector to continue at least through the second
quarter of 1996. PC demand appears sluggish relative to expectations, and we
have not yet seen a major corporate move to upgrade Pentium/Windows '95. Still,
there should continue to be selective opportunities in this sector, particularly
on the software side and in such services as systems integration. Medical
stocks, one of the leading groups in the past six months, should continue to do
well, which is why we have increased our weightings in this sector.

  We think it likely that the erratic and challenging movements in the market of
the first quarter of 1996 will continue throughout the year. We believe that
valuations have become extended for the large-cap stocks. But valuations among
many small-cap firms, our specialty, look very attractive. In short, amid all
the turbulence, we believe that 1996 should provide positive real returns
overall.

  We appreciate your investment in the Calvert Capital Accumulation Fund.

Sincerely,


/s/ Clifton S. Sorrell

Clifton S. Sorrell
Chairman
April 30, 1996


SEMI-ANNUAL REPORT (UNAUDITED)             CALVERT CAPITAL ACCUMULATION FUND - 3
<PAGE>
 
                              PORTFOLIO STATISTICS

                           TEN LARGEST STOCK HOLDINGS
                              as of March 31, 1996
                                                               % of Net Assets
  ----------------------------------------------------------------------------
  Autozone, Inc.                                                     1.3%
  Marisa Christina, Inc.                                             1.2%
  Imnet Systems, Inc.                                                1.2%
  Mecon, Inc.                                                        1.2%
  Green Tree Financial Corp.                                         1.2%
  Atlantic Coast Airlines, Inc.                                      1.2%
  Microcom, Inc.                                                     1.1%
  Cisco Systems, Inc.                                                1.1%
  Physician Support Systems, Inc.                                    1.1%
  Cardinal Health, Inc.                                              1.1%
                                                                    -----
   TOTAL                                                            11.7%
                                                                    ===== 

                          AVERAGE ANNUAL TOTAL RETURNS
                        for periods ended March 31, 1996

       CLASS A SHARES
        One Year                                                20.79%
        Since Inception (10/31/94)                              22.94%

       CLASS C SHARES
        One Year                                                25.42%
        Since Inception (10/31/94)                              26.83%

                             PERFORMANCE COMPARISON

              Comparison of changes in value of $10,000 investment

                             [Graph Appears Here]
                             [Plot Points To Come]

                    Calvert Capital    Calvert Capital
                     Accumulation       Accumulation
                    Fund - A Shares    Fund - C Shares    S&P Midcap 400

     10/94              $10,000            $10,000           $10,000
     3/96               $13,379            $13,979           $14,245

   Total returns assume reinvestment of dividends and, for Class A shares, 
 reflect the deduction of the Fund's maximum sales charge of 4.75%. No sales 
  charge has been applied to the index used for comparison. Past performance 
                      is no guarantee of future results.

4 - CALVERT CAPITAL ACCUMULATION FUND             SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
                            STATEMENT OF INVESTMENTS
                                 MARCH 31, 1996
<TABLE>
<CAPTION>
 
EQUITY SECURITIES - 93.0%                     SHARES    VALUE
================================================================
<S>                                           <C>     <C>
AIRLINE - 1.6%
Atlantic Coast Airlines, Inc.*..............  23,500  $  364,250
Mesaba Holdings, Inc.*......................   4,500      50,625
Reno Air, Inc.*.............................   7,500      93,750
                                                      ----------
                                                         508,625
                                                      ----------

BIOTECHNOLOGY - 1.0%........................
Amgen, Inc.*................................   5,200     302,250
                                                      ----------

BUSINESS EQUIPMENT AND SERVICES - 1.9%
Cintas Corp.................................   1,700      85,000
Corporate Express, Inc.*....................   7,000     231,000
Profit Recovery Group International, Inc.*..   6,000      93,000
U.S. Office Products Co.*...................   5,900     182,900
                                                      ----------
                                                         591,900
                                                      ----------

CHEMICALS - 0.6%............................
Minerals Technologies, Inc..................   3,747     129,740
Sigma Aldrich Corp..........................   1,200      68,700
                                                      ----------
                                                         198,440
                                                      ----------

COMMUNICATIONS - 5.6%
Cisco Systems, Inc.*........................   7,500     347,812
Digital Systems International, Inc..........  10,300     157,719
DSC Communications Corp.*...................   7,150     193,050
Hummingbird Communications Ltd.*............   3,000     113,250
Intervoice, Inc.*...........................   4,600     131,675
P Com, Inc.*................................   9,300     187,162
Remec, Inc.*................................   8,300     103,750
STM Wireless, Inc., Class A*................   2,600      27,625
Tellabs, Inc.*..............................   3,500     191,774
Teltrend, Inc.*.............................   3,600     163,800
Voice Control Systems, Inc.*................  12,000     166,500
                                                      ----------
                                                       1,784,117
                                                      ----------

COMPUTER - SOFTWARE - 12.4%
Act Networks, Inc.*.........................  10,300     227,888
Adept Technology, Inc.*.....................   9,000     130,500
Cheyenne Software, Inc.*....................  18,200     286,650
Compuware Corp.*............................   6,700     154,100
Comshare, Inc.*.............................   7,000     161,000
Cotelligent Group, Inc.*....................  15,000     176,250
Cylink Corp.*...............................   7,800     138,450
Fractal Design Corp.*.......................  10,500     128,625
Health Systems Design Corp.*................   8,000     111,000
Hyperion Software Corp......................   8,000     174,000
IDX Systems Corp.*..........................   3,500     101,500
Imnet Systems, Inc.*........................  12,700     384,175
</TABLE>


SEMI-ANNUAL REPORT (UNAUDITED)             CALVERT CAPITAL ACCUMULATION FUND - 5
<PAGE>
 
<TABLE>
<CAPTION>
 
EQUITY SECURITIES (CONT'D)             SHARES    VALUE
=========================================================
<S>                                    <C>     <C>
COMPUTER - SOFTWARE (CONT'D)
Legato Systems, Inc.*................   3,700  $  139,675
McAfee Associates, Inc.*.............   4,000     219,000
Microsoft Corp.*.....................   2,250     232,031
Network Gen Corp.*...................   2,600     104,000
Number Nine Visual Technology*.......   1,500       8,812
Open Text Corp.*.....................   9,000     127,125
Quarterdeck Corp.*...................  10,000     147,500
Rational Software Corp.*.............   2,900     114,550
Sterling Software, Inc.*.............   4,350     306,675
Viasoft, Inc.*.......................  11,300     317,812
                                               ----------
                                                3,891,318
                                               ----------

COMPUTER - SYSTEMS - 7.0%
Amati Communications Corp.*..........  14,000     113,750
Bay Networks, Inc.*..................   5,900     181,425
Diamond Multimedia Systems, Inc.*....   7,600     121,600
Gandalf Technologies, Inc.*..........  10,600     156,350
Mentor Graphics Corp.*...............   7,000      99,750
Meridian Data, Inc.*.................  17,300     179,488
Microcom, Inc.*......................  11,900     355,512
Oracle Corp.*........................   6,125     288,641
Powercerv Corp.*.....................  10,700     159,330
Spacetex IMC Corp.*..................  11,000     170,500
Sync Research, Inc.*.................   4,700      74,025
Verifone, Inc.*......................   7,000     294,000
                                               ----------
                                                2,194,371
                                               ----------

CONSUMER PRODUCTS - 1.0%
Newell Co............................  12,100     323,675
                                               ----------

COSMETICS - 0.5%
Penederm, Inc.*......................  11,200     145,600
                                               ----------

ELECTRICAL EQUIPMENT - 1.7%
AFC Cable Systems, Inc.*.............   5,000      66,250
Checkpoint Systems, Inc.*............  10,000     248,750
Pacific Scientific Co................  10,000     211,250
                                               ----------
                                                  526,250
                                               ----------

ELECTRONICS - DEFENSE - 0.3%
Jacobs Engineering Group, Inc.*......   3,300      93,225
                                               ----------

ELECTRONICS - INSTRUMENTS - 1.4%
Checkfree Corp.*.....................  10,000     175,000
General Scanning, Inc.*..............  11,500     148,062
Ultratech Stepper, Inc.*.............   6,000     105,750
                                               ----------
                                                  428,812
                                               ----------

ELECTRONICS - SEMICONDUCTORS - 6.6%
Ariel Corp.*.........................  10,900      81,750
EMC Corp.*...........................  11,800     258,125
</TABLE>



6 - CALVERT CAPITAL ACCUMULATION FUND             SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
<TABLE>
<CAPTION>
 
EQUITY SECURITIES (CONT'D)                       SHARES       VALUE
=====================================================================
<S>                                              <C>         <C>
ELECTRONICS - SEMICONDUCTORS - (CONT'D)
Electrostar, Inc.*...........................     8,000      $ 84,000
Input/Output, Inc.*..........................     4,000       124,000
MRV Communications, Inc.*....................     3,900       185,250
Sheldahl Co.*................................     8,000       154,000
Sierra Semiconductor Corp.*..................    10,000       190,000
Solectron Corp.*.............................     5,500       242,000
Tencor Instruments*..........................     6,000       108,000
Transwitch Corp.*............................    12,300       149,138
Uniphase Corp.*..............................     5,100       197,625
Vishay Intertechnology, Inc.*................    10,800       291,600
                                                           ----------
                                                            2,065,488
                                                           ----------

ENVIRONMENTAL SERVICES - 0.6%
Allied Waste Industries, Inc.*...............    20,000       182,500
                                                           ----------

FINANCIAL SERVICES - 3.4%
Chase Manhattan Corp (rights)................     3,100       227,850
Glendale Federal Bank Federal Savings Bank*..    13,300       241,062
Green Tree Financial Corp....................    10,600       364,375
T. Rowe Price Associates, Inc................     4,600       243,800
                                                           ----------
                                                            1,077,087
                                                           ----------

HEALTH CARE - 6.7%
American Homepatient, Inc.*..................     5,000       196,250
American Oncology Research, Inc.*............     3,000       127,500
CRA Managed Care, Inc.*......................     6,000       214,500
First Commonwealth, Inc.*....................     3,400        87,550
GRC International, Inc.*.....................     5,100       173,400
HCIA, Inc.*..................................     3,000       141,000
Health Care & Retirement Corp.*..............     7,700       290,675
Manor Care, Inc..............................     6,800       266,900
NCS Healthcare, Inc., Class A*...............     6,000       147,000
PHP Healthcare Corp.*........................     2,100        50,662
Renal Care Group, Inc.*......................     4,000       111,000
United Healthcare Corp.......................     5,000       307,500
                                                           ----------
                                                            2,113,937
                                                           ----------

INSURANCE - 1.2%
AFLAC, Inc...................................     9,050       282,812
American Bankers Insurance Group, Inc........     2,500        88,125
                                                           ----------
                                                              370,937
                                                           ----------

LEISURE - 1.5%
Callaway Golf Co.............................     6,000       160,500
Carnival Corp., Class A......................    11,350       312,125
                                                           ----------
                                                              472,625
                                                           ----------

MACHINERY - 0.1%
Ionics, Inc.*................................       300        12,525
                                                           ----------
</TABLE>

SEMI-ANNUAL REPORT (UNAUDITED)             CALVERT CAPITAL ACCUMULATION FUND - 7
<PAGE>
 
<TABLE>
<CAPTION>
 
EQUITY SECURITIES (CONT'D)            SHARES      VALUE
==========================================================
<S>                                   <C>       <C>
MEDICAL - 14.3%
Alkermes, Inc.*....................   15,500    $  141,438
ALZA Corp.*........................    4,700       144,525
Cardinal Health, Inc...............    5,150       330,888
Creative Biomolecules, Inc.*.......   11,300       105,938
Cytyc Corp.*.......................    6,200       103,850
Diametrics Medical, Inc.*..........   10,000        60,000
Hologic, Inc.*.....................    5,400       122,850
ICU Medical, Inc.*.................   10,300       149,511
Immucor Corp.*.....................   10,200       135,150
Inhale Therapeutic Systems*........   10,200       155,550
Invacare Corp......................    6,000       169,500
Iridex Corp.*......................    8,500        87,125
Lunar Corp.*.......................    3,900       166,725
Martek Biosciences Corp.*..........    5,100       183,600
Mecon, Inc.*.......................   19,100       377,225
Myriad Genetics, Inc.*.............    4,500       120,375
North American Vaccine, Inc.*......    7,500       103,125
Northfield Laboratories, Inc.*.....    8,200       155,800
Orthologic Corp.*..................    7,300       185,238
Pediatrix Medical Group*...........    5,500       195,250
QLT Phototherapeutics*.............   12,700       165,100
Research Med, Inc.*................    9,000       207,000
Respironics, Inc.*.................    6,000       126,000
R.P. Scherer Corp.*................    5,200       228,150
Sofamor/Danek Group, Inc.*.........    7,000       237,125
Steris Corp.*......................    4,100       123,000
Zygo Corp.*........................    5,400       210,600
                                                ----------
                                                 4,490,638
                                                ----------

OIL & GAS - 1.7%
Belden & Blake Corp.*..............    8,000       143,000
Dawson Production Services, Inc.*..   12,200       137,250
MCN Corp...........................   11,500       265,938
                                                ----------
                                                   546,188
                                                ----------

PHARMACEUTICAL - 2.9%
Agouron Pharmaceuticals, Inc.*.....    2,800       108,500
Columbia Labs, Inc.*...............   17,200       204,250
Immulogic Pharmaceutical Corp.*....    9,500       125,691
Neurogen Corp.*....................    4,400       151,800
Noven Pharmaceuticals, Inc.*.......   10,600       152,375
Sequus Pharmaceuticals, Inc.*......   11,600       160,225
                                                ----------
                                                   902,841
                                                ----------

REAL ESTATE - 1.8%
General Growth Properties, Inc.....   11,450       269,075
Post Properties, Inc...............    8,700       282,750
                                                ----------
                                                   551,825
                                                ----------
</TABLE>

8 - CALVERT CAPITAL ACCUMULATION FUND             SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
<TABLE>
<CAPTION>
 
EQUITY SECURITIES (CONT'D)                        SHARES     VALUE
=====================================================================
<S>                                               <C>     <C>
RESTAURANTS - 3.6%
Applebees International, Inc....................   4,500  $   112,500
Buffets, Inc.*..................................  12,400      176,700
Cheesecake Factory, Inc.*.......................  11,000      297,000
CKE Restaurants, Inc............................  10,000      167,500
Daka International, Inc.*.......................   9,000      227,250
Manhattan Bagel, Inc.*..........................   6,500      151,125
                                                          -----------
                                                            1,132,075
                                                          -----------

RETAIL - 6.7%
Autozone, Inc.*.................................  12,000      406,500
Baby Superstore, Inc.*..........................   2,800      127,400
Casey General Stores, Inc.......................  11,200      263,200
Dollar General Corp.*...........................  11,400      330,600
Federated Department Stores, Inc.*..............     350       11,288
Gadzooks, Inc.*.................................   5,800      201,550
Movie Gallery, Inc.*............................   9,000      227,250
Noodle Kidoodle, Inc.*..........................  10,000       85,750
Party City Corp.*...............................     700       10,150
Prime Retail, Inc...............................     700        8,050
Revco D.S., Inc.*...............................   5,350      147,125
Vans, Inc.*.....................................   8,200      113,775
Whole Foods Market, Inc.*.......................   9,000      164,250
                                                          -----------
                                                            2,096,888
                                                          -----------

SPECIALIZED SERVICES - 3.9%
Ambassadors International, Inc.*................   8,000       88,000
Devry, Inc.*....................................   4,500      153,000
Equifax, Inc....................................  14,200      285,775
Individual, Inc.*...............................   4,000       61,000
Physician Support Systems, Inc.*................  19,700      337,362
U.S. Order, Inc.*...............................   8,000      164,000
Veterinary Centers America, Inc.*...............   5,500      148,500
                                                          -----------
                                                            1,237,637
                                                          -----------

TELECOMMUNICATIONS - 0.8%
Westell Technologies, Class A*..................   6,700      247,900
                                                          -----------

TEXTILES - 2.2%
Marisa Christina, Inc.*.........................  19,100      384,388
Quiksilver, Inc.*...............................   4,900      155,575
St. John Knits, Inc.............................   2,400      161,700
                                                          -----------
                                                              701,663
                                                          -----------

 Total Equity Securities (Cost $25,801,996).....           29,191,337
                                                          -----------

  TOTAL INVESTMENTS (Cost $25,801,996) - 93.0%..           29,191,337
  Other assets and liabilities, net - 7.0%......            2,179,628
                                                          -----------
  NET ASSETS - 100%.............................          $31,370,965
                                                          ===========
 
</TABLE>

* Non-income producing.
See notes to financial statements.

SEMI-ANNUAL REPORT (UNAUDITED)            CALVERT CAPITAL ACCUMULATION FUND - 9
<PAGE>
 
                      Statement of Assets and Liabilities

                                 March 31, 1996

<TABLE>
<CAPTION>
Assets                                                                                    Value
- --------------------------------------------------------------------------------------------------
<S>                                                                                    <C>
Investments in securities, at value..................................................  $29,191,337
Cash.................................................................................    1,711,006
Receivable for securities sold.......................................................      559,342
Receivable for shares sold...........................................................      346,352
Dividends receivable.................................................................        6,618
Other assets.........................................................................       16,686
                                                                                       -----------
  Total assets.......................................................................   31,831,341
                                                                                       -----------
 
Liabilities
- --------------------------------------------------------------------------------------------------
Payable for securities purchased.....................................................      304,233
Payable for shares redeemed..........................................................       96,383
Payable to Calvert Asset Management Co., Inc. .......................................       32,347
Payable to Calvert Shareholder Services, Inc. .......................................        9,494
Payable to Calvert Distributors, Inc. ...............................................       10,721
Accrued expenses and other liabilities...............................................        7,198
                                                                                       -----------
  Total liabilities..................................................................      460,376
                                                                                       -----------
    Net assets.......................................................................  $31,370,965
                                                                                       ===========
 
Net Assets Consist of:
- --------------------------------------------------------------------------------------------------
Par value and paid-in capital applicable to the following shares of common stock,
  125,000,000 shares of $0.01 par value authorized for Class A and Class C combined:
    Class A: 1,380,231 shares outstanding............................................  $25,954,549
    Class C: 151,924 shares outstanding..............................................    3,031,241
Undistributed net investment income (loss)...........................................     (208,310)
Accumulated net realized gain (loss) on investments..................................     (795,856)
Net unrealized appreciation (depreciation) on investments............................    3,389,341
                                                                                       -----------
    Net assets.......................................................................  $31,370,965
                                                                                       ===========
 
Net Asset Value Per Share
- --------------------------------------------------------------------------------------------------
Class A (based on net assets of $28,268,558).........................................       $20.48
                                                                                       ===========
Class C (based on net assets of $3,102,407)..........................................       $20.42
                                                                                       ===========
</TABLE>
See notes to financial statements.

10 - CALVERT CAPITAL ACCUMULATION FUND            SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
                            Statement of Operations
                        Six Months Ended March 31, 1996

<TABLE>
<CAPTION>
Net Investment Income
- ---------------------------------------------------------------
<S>                                                  <C>
Investment Income
  Interest income...................................  $  20,927
  Dividend income...................................     32,366
                                                      ---------
    Total investment income.........................     53,293
                                                      ---------
  
Expenses
  Investment advisory fee...........................     95,424
  Transfer agency fees and expenses.................     59,698
  Distribution Plan expenses:
    Class A.........................................     37,177
    Class C.........................................     13,061
  Directors' fees and expenses......................        561
  Administrative fees...............................     11,928
  Custodian fees....................................     25,300
  Registration fees.................................     22,398
  Reports to shareholders...........................     13,561
  Professional fees.................................      2,247
  Miscellaneous.....................................      5,548
                                                      ---------
    Total expenses..................................    286,903
    Fees paid indirectly............................    (25,300)
                                                      ---------
      Net expenses..................................    261,603
                                                      ---------
        Net Investment Income (Loss)................   (208,310)
                                                      ---------
 
Realized and Unrealized Gain (Loss)
on Investments
- ---------------------------------------------------------------
Net realized gain (loss)............................   (795,575)
Change in unrealized appreciation or depreciation...    986,448
                                                      ---------
 
     Net Realized and Unrealized Gain
     (Loss) on Investments..........................    190,873
                                                      ---------

     Increase (Decrease) in Net Assets
     Resulting From Operations......................  $ (17,437)
                                                      =========
</TABLE> 

See notes to financial statements.

SEMI-ANNUAL REPORT (UNAUDITED)            CALVERT CAPITAL ACCUMULATION FUND - 11
<PAGE>
 
                       Statement of Changes in Net Assets

<TABLE>
<CAPTION>
                                                                              Six Months 
                                                                                 Ended      Oct. 31, 1994
                                                                               March 31,    (Inception) to
Increase (Decrease) in Net Assets                                                 1996      Sept. 30, 1995
- ----------------------------------------------------------------------------------------------------------
<S>                                                                           <C>           <C> 
Operations
  Net investment income (loss).............................................  $  (208,310)    $  (110,326)
  Net realized gain (loss).................................................     (795,575)        678,368
  Change in unrealized appreciation or depreciation........................      986,448       2,402,893
                                                                             -----------     ----------- 
    Increase (Decrease) in Net Assets
    Resulting From Operations..............................................      (17,437)      2,970,935
                                                                             -----------     ----------- 
 
Distributions to shareholders from
  Net investment income:
    Class A Shares.........................................................           --          (4,761)
  Net realized gain:
    Class A Shares.........................................................     (495,795)             --
    Class C Shares.........................................................      (67,767)             --
                                                                             -----------     ----------- 
  Total distributions......................................................     (563,562)         (4,761)
                                                                             -----------     ----------- 
 
Capital share transactions:
  Shares sold:
    Class A Shares.........................................................   15,892,583      14,367,141
    Class C Shares.........................................................    1,612,039       1,914,520
  Reinvestment of distributions:
    Class A Shares.........................................................      477,591           4,761
    Class C Shares.........................................................       66,068              --
  Shares redeemed:
    Class A Shares.........................................................   (3,740,361)     (1,047,166)
    Class C Shares.........................................................     (458,596)       (102,790)
                                                                             -----------     ----------- 
  Total capital share transactions.........................................   13,849,324      15,136,466
                                                                             -----------     ----------- 
 
Total Increase (Decrease) in Net Assets....................................   13,268,325      18,102,640
 
Net Assets
- --------------------------------------------------------------------------------------------------------
  Beginning of period......................................................   18,102,640              --
                                                                             -----------     ----------- 
  End of period (including undistributed net investment income
    (loss) of $(208,310) and $0, respectively).............................  $31,370,965     $18,102,640
                                                                             ===========     ===========
</TABLE>
See notes to financial statements.

12 - CALVERT CAPITAL ACCUMULATION FUND            SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
                         Notes to Financial Statements

Note A--Significant Accounting Policies

General:  The Calvert Capital Accumulation Fund (the "Fund"), a series of
Calvert World Values Fund, Inc., is registered under the Investment Company Act
of 1940 as a non-diversified, open-end management investment company. The
operations of each series are accounted for separately. The Fund, which
commenced operations on October 31, 1994, offers Class A and Class C shares of
capital stock. Class A shares are sold with a maximum front-end sales charge of
4.75%. Class C shares, which have no transaction-based sales charge, have a
higher annual expense rate than Class A. Each class has different: (a) dividend
rates, due to differences in Distribution Plan expenses and other class specific
expenses, (b) exchange privileges and (c) class specific voting rights.

Security Valuation:   Securities listed or traded on a national securities
exchange are valued at the last reported sale price. Unlisted securities and
listed securities for which the last sale price is unavailable are valued at the
most recent bid price or based on a yield equivalent obtained from the
securities' market maker. Other securities and assets for which market
quotations are not available or deemed inappropriate are valued in good faith
under the direction of the Board of Directors.

Repurchase Agreements:  The Fund may enter into repurchase agreements with
recognized financial institutions or registered broker/dealers and, in all
instances, holds underlying securities with a value exceeding the total
repurchase price, including accrued interest.
 
Security Transactions and Investment Income:  Security transactions are
accounted for on trade date. Realized gains and losses are recorded on an
identified cost basis. Dividend income is recorded on the ex-dividend date.
Interest income, accretion of discount and amortization of premium are recorded
on an accrual basis.

Distributions to Shareholders:  Distributions to shareholders are recorded by
the Fund on ex-dividend date. Dividends from net investment income and
distributions from net realized capital gains, if any, are paid at least
annually. Distributions are determined in accordance with income tax regulations
which may differ from generally accepted accounting principles; accordingly,
periodic reclassifications are made within the Fund's capital accounts to
reflect income and gains available for distribution under income tax
regulations.

Expense Offset Arrangement:  The Fund has an arrangement with its custodian bank
whereby the custodian's fees are paid indirectly by credits earned on the Fund's
cash on deposit with the bank. Such deposit arrangement is an alternative to
overnight investments.

Federal Income Taxes:  No provision for federal income or excise tax is required
since the Fund intends to qualify as a regulated investment company under the
Internal Revenue Code and to distribute substantially all of its earnings.


SEMI-ANNUAL REPORT (UNAUDITED)            CALVERT CAPITAL ACCUMULATION FUND - 13
<PAGE>
 
Note B--Related Party Transactions

Calvert Asset Management Company, Inc. (the "Advisor") is wholly-owned by
Calvert Group, Ltd. ("Calvert"), which is indirectly wholly-owned by Acacia
Mutual Life Insurance Company. The Advisor provides investment advisory services
and pays the salaries and fees of officers and affiliated Directors of the Fund.
For its services, the Advisor receives a monthly fee based on an annual rate of
 .80% of the Fund's average daily net assets.

The Advisor reimburses the Fund for its operating expenses (excluding brokerage
fees, taxes, interest, Distribution Plan expenses and extraordinary items)
exceeding the following annual rates of average net assets: 2.5% on the first
$30 million, 2.0% on the next $70 million and 1.5% on the excess of $100
million.

Calvert Distributors, Inc., an affiliate of the Advisor, is the distributor and
principal underwriter for the Fund. Distribution Plans, adopted by each class of
shares, allow the Fund to pay the distributor for expenses and services
associated with distribution of shares. The expenses paid may not exceed .35%
and 1.0% annually of average daily net assets of each Class A and Class C,
respectively.

The Distributor received $64,513 as its portion of the commissions charged on
sales of the Fund's shares.

Calvert Shareholder Services, Inc., an affiliate of the Advisor, acts as
transfer, dividend disbursing and shareholder servicing agent for the Fund.

Calvert Administrative Services Company, an affiliate of the Advisor, provides
administrative services to the Fund for an annual fee, payable monthly, of .10%
of the average daily net assets of the Fund.

Each Director who is not affiliated with the Advisor receives an annual fee of
$3,000 plus $1,000 for each Board and Committee meeting attended. Director's
fees are allocated to each of the funds served.

Note C--Investment Activity

During the period, purchases and sales of investments, other than short-term
securities, were $25,627,138 and $12,718,897, respectively.

The cost of investments owned at March 31, 1996 was substantially the same for
federal income tax and financial reporting purposes. Net unrealized appreciation
aggregated $3,389,341, of which $4,614,749 related to appreciated securities and
$1,225,408 related to depreciated securities.


14 - CALVERT CAPITAL ACCUMULATION FUND            SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 
Note D--Capital Shares

Transactions in shares of common stocks were as follows:

<TABLE>
<CAPTION>
                                      Six Months     Oct. 31, 1994
                                        Ended        (Inception) to
Share Activity                      March 31, 1996   Sept. 30, 1995
- -------------------------------------------------------------------
<S>                                <C>               <C>
Class A Shares:
  Shares sold.....................      791,068          808,632
  Reinvestment of distributions...       23,446              304
  Shares redeemed.................     (184,343)         (58,876)
                                       --------          -------
    Net share activity............      630,171          750,060
                                       ========          =======
 
Class C Shares:
  Shares sold.....................       80,241           97,638
  Reinvestment of distributions...        3,240               --
  Shares redeemed.................      (23,979)          (5,216)
                                       --------          -------
    Net share activity............       59,502           92,422
                                       ========          =======
</TABLE>


SEMI-ANNUAL REPORT (UNAUDITED)            CALVERT CAPITAL ACCUMULATION FUND - 15
<PAGE>
 
                              Financial Highlights

<TABLE>
<CAPTION>
 
                                                                     Periods Ended
                                                               -------------------------
                                                               March 31,   September 30,
Class A Shares                                                    1996         1995**
- ----------------------------------------------------------------------------------------
<S>                                                            <C>         <C>
Net asset value, beginning of period..........................  $ 21.48       $ 15.00
                                                                =======       =======
Income from investment operations
- ---------------------------------
  Net investment income (loss)................................     (.12)         (.11)
  Net realized and unrealized gain on investments.............     (.31)         6.61
                                                                -------       -------
    Total from investment operations..........................     (.43)         6.50
                                                                -------       -------
Distributions from
- ------------------
  Net investment income.......................................       --          (.02)
  Net realized gain...........................................     (.57)           --
                                                                -------       -------
    Total distributions.......................................     (.57)         (.02)
                                                                -------       -------
Total increase (decrease) in net asset value..................    (1.00)         6.48
                                                                -------       -------
Net asset value, end of period................................  $ 20.48       $ 21.48
                                                                =======       =======
 
Total return*.................................................    (1.99%)       43.40%
                                                                =======       =======
Ratios to average net assets:
  Net investment income (loss)................................    (1.61%)(a)    (1.55%)(a)
                                                                =======       =======
  Total expenses+.............................................     2.27%(a)      2.35%(a)
                                                                =======       =======
  Net expenses................................................     2.06%(a)      2.06%(a)
                                                                =======       =======
  Expenses reimbursed.........................................       --           .05%(a)
                                                                =======       =======
Portfolio turnover............................................       61%           95%
                                                                =======       =======
Net assets, end of period (in thousands)......................  $28,269       $16,111
                                                                =======       =======
Number of shares outstanding at end of period (in thousands)..    1,380           750
                                                                =======       =======
</TABLE> 
<TABLE> 
<CAPTION>  
                                                                      Periods Ended
                                                               -------------------------
                                                               March 31,   September 30,
Class C Shares                                                    1996         1995**
- ----------------------------------------------------------------------------------------
<S>                                                            <C>         <C>
Net asset value, beginning of period..........................  $ 21.55       $ 15.00
                                                                =======       =======
Income from investment operations
- ---------------------------------
  Net investment income (loss)................................     (.25)         (.15)
  Net realized and unrealized gain on investments.............     (.31)         6.70
                                                                -------       -------
    Total from investment operations..........................     (.56)         6.55
                                                                -------       -------
Distributions from
- ------------------
  Net investment income.......................................       --            --
  Net realized gain...........................................     (.57)           --
                                                                -------       -------
    Total distributions.......................................     (.57)           --
                                                                -------       -------
Total increase (decrease) in net asset value..................    (1.13)         6.55
                                                                -------       -------
Net asset value, end of period................................  $ 20.42       $ 21.55
                                                                =======       =======
 
Total return*.................................................    (2.60%)       43.67%
                                                                =======       =======
Ratios to average net assets:
  Net investment income (loss)................................    (2.86%)(a)    (3.13%)(a)
                                                                =======       =======
  Total expenses+.............................................     3.51%(a)      3.79%(a)
                                                                =======       =======
  Net expenses................................................     3.30%(a)      3.50%(a)
                                                                =======       =======
  Expenses reimbursed.........................................       --          2.79%(a)
                                                                =======       =======
Portfolio turnover............................................       61%           95%
                                                                =======       =======
Net assets, end of period (in thousands)......................  $ 3,102       $ 1,992
                                                                =======       =======
Number of shares outstanding at end of period (in thousands)..      152            92
                                                                =======       =======
</TABLE>

(a) Annualized
+  This ratio reflects total expenses before reduction for fees paid indirectly;
   such reductions are included in the ratio of net expenses.
*  Total return is not annualized and does not reflect deduction of Class A
   front-end sales charge.
** From October 31, 1994, inception.

16 - CALVERT CAPITAL ACCUMULATION FUND            SEMI-ANNUAL REPORT (UNAUDITED)
<PAGE>
 

==============================================================================

                              To Open an Account:
                              -------------------

                                  800-368-2748


                               Yields and Prices:
                              -------------------

                          Calvert Information Network
                            24 hours, 7 days a week
                                  800-368-2745


                                  Service for
                               Existing Account:
                              -------------------

                           Shareholders: 800-368-2745
                             Brokers: 800-368-2746


                                 TDD for Hearing
                                   Impaired:
                              -------------------

                                  800-541-1524


                                 Branch Office:
                              -------------------

                             4550 Montgomery Avenue
                                  Suite 1000N
                            Bethesda, Maryland 20814


                             Registered, Certified
                               or Overnight Mail:
                              -------------------

                                 Calvert Group
                              c/o NFDS, 6th Floor
                                 1004 Baltimore
                           Kansas City, MO 64105-1807


                                    Web Site
                              -------------------

                      Address: http://www.calvertgroup.com


                                   Principal
                                  Underwriter:
                              -------------------

                           Calvert Distributors, Inc.
                             4550 Montgomery Avenue
                                  Suite 1000N
                            Bethesda, Maryland 20814

==============================================================================
     This report is intended to provide fund information to shareholders.
It is not authorized for distribution to prospective investors unless preceded
                        or accompanied by a prospectus.


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