PIONEER EMERGING MARKETS FUND
N-30D, 1996-07-30
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<PAGE>
PIONEER
EMERGING
MARKETS
FUND





SEMIANNUAL REPORT
MAY 31, 1996

<PAGE>
PIONEER EMERGING MARKETS FUND

Dear Shareowner,

Pioneer  Emerging  Markets Fund reached the midpoint of its third fiscal year on
May 31, 1996. The past six months were exciting as developing  markets rebounded
in late 1995 and through early 1996 when investors began to appreciate the value
and growth potential present in emerging economies.

                          HOW YOUR FUND PERFORMED

We are pleased to report that your Fund achieved excellent  performance over the
six months  ended May 31, 1996.  In fact,  your Fund  handily  outperformed  the
average  emerging  markets fund for the semiannual  period.  According to Lipper
Analytical  Services,  the 81 funds in this  category  posted an  average  total
return of 17.71% over the six months.

Your Fund also  outpaced  emerging  markets  as a group.  The  unmanaged  Morgan
Stanley Capital  International (MSCI) Emerging Markets Free Index showed a total
return of 14.86%  for the six months  through  May 31.  The Index  reflects  the
progress of 22 developing stock markets.

Your Fund achieved the following results:
CLASS A SHARES -- Net asset  value  stood at $14.52  per share on May 31,  1996,
versus $11.56 on November 30, 1995. The increase in share value  translated into
a  six-month  total  return of 25.60% at net asset  value and  18.34% at maximum
public offering price.

CLASS B SHARES -- Net asset value was $14.36 per share on May 31,  1996,  versus
$11.47 per share on November 30, 1995. The increase in share value resulted in a
total return of 25.20% for the six months,  assuming shares were held the entire
period.  If shares were sold on May 31, and the maximum 4%  contingent  deferred
sales charge deducted, total return would have been 21.20%.

The Fund  introduced  CLASS C SHARES on January  31,  1996.  Net asset value was
$14.35 per share on May 31,  versus the  introductory  $13.22.  The  increase in
share value created a total return of 8.55% for the abbreviated period, assuming
shares were held throughout.  If shares were sold and the 1% contingent deferred
sales charge deducted on May 31, total return would have been 7.55%.

The accompanying  table shows the Fund's results over its relatively brief life,
and illustrates  how  performance  can vary widely in emerging  markets over the
short term.


<TABLE>
<CAPTION>
                          AVERAGE ANNUAL TOTAL RETURNS
                              (AS OF MAY 31, 1996)
<S>                               <C>                            <C>
                                                                     PUBLIC
CLASS A SHARES                    NET ASSET VALUE                OFFERING PRICE*
- --------------                    ---------------                ---------------
Life of Fund (6/23/94)                  8.90%                          5.64%
1 Year                                 25.79                          18.53

CLASS B SHARES                        IF HELD                     IF REDEEMED**
- --------------                        -------                     -------------
Life of Fund (6/23/94)                  8.17%                          6.24%
1 Year                                 25.05                          21.05
</TABLE>

                       A PERIOD OF FAST-PACED CHANGE

For  investors in emerging  markets,  the  semiannual  period was something of a
roller  coaster  ride.  Stock prices were  volatile,  swinging  both ways before
settling  higher  as  global  investors,  drawn  by  exceptionally  low  prices,
reentered  smaller  markets  with  a  vengeance.  It was a  time  that  rewarded
disciplined investors, including your Fund, for their perseverance.

A main driver in emerging  markets is the direction of U.S.  interest rates. The
differential,  or "spread,"  between  interest rates in emerging markets and the
U.S.  can make it either more or less  expensive  for  companies  in  developing
nations to attract investors. Generally, higher U.S. rates hurt stocks prices in
emerging markets, while falling U.S. rates help them make their potential yields
and returns  attractive  enough to compensate for the risks  investors may face.
The fact that U.S.  rates both rose and fell  during the period  contributed  to
price swings in emerging stock markets.

 * Reflects  deduction of the maximum 5.75% sales charge at the beginning of the
   period and assumes reinvestment of distributions at net asset value.
** Reflects  deduction of the maximum 4.0%  contingent  deferred sales charge at
   the end of the period and assumes reinvestment of distributions.
Past  performance  does not  guarantee  future  results.  Return and share price
fluctuate,  and your shares, when redeemed, may be worth more or less than their
original cost.
<PAGE>

Anxiety over elections also influenced  stock prices in a number of nations over
the  past  six  months  --  India,  Russia  and  Israel  to name a few.  Without
exception,  these  financial  markets  became more  volatile  as  still-evolving
political  systems  put  themselves  to the  test.  Even  with  the  uncertainty
surrounding U.S. rates and shifting political powers, however,  emerging markets
staged a tremendous rally, more than recouping losses incurred in 1995.

                         PORTFOLIO DIVERSIFICATION

During the past six months, we maintained a broadly diversified portfolio. As of
May 31, the Fund had holdings in 121  companies  from 26 nations.  The following
chart shows the wide variety of countries represented at the period's end.

                          GEOGRAPHIC DISTRIBUTION
           (Percentage of equity investments as of May 31, 1996)

LINE GRAPH SHOWN using the following figures:

<TABLE>
                      <S>                             <C>
                      Argentina                        2.3%
                      Belize                           0.3%
                      Brazil                          15.1%
                      Chile                            0.4%
                      China                            3.1%
                      Finland                          0.9%
                      Greece                           2.0%
                      Hong Kong                        9.1%
                      India                            9.9%
                      Indonesia                        3.6%
                      Korea                            8.0%
                      Malaysia                         0.6%
                      Mexico                           8.6%
                      Pakistan                         2.0%
                      Peru                             1.5%
                      Philippines                      1.7%
                      Poland                           1.9%
                      Portugal                         0.9%
                      Russia                           9.6%
                      Singapore                        0.7%
                      South Africa                     1.1%
                      Sweden                           0.7%
                      Taiwan                           0.1%
                      Thailand                        11.4%
                      Turkey                           3.9%
                      United States                    0.5%
                      Venezuela                        0.1%
</TABLE>

The Fund's  diversification helped offset price declines in markets particularly
sensitive  to changes in U.S.  rates.  For example,  holdings in Brazil,  India,
Korea and Russia tended to react more to other, internal factors.  Regardless of
the locale,  however,  we view a price decline as a chance to buy stocks we like
at prices we think offer good value. Often, special events like elections create
just such a situation. On the other side of the coin, we will sell if valuations
seem high after either strong gains in a specific stock or a run-up in an entire
market.

                            PORTFOLIO ACTIVITY

During the period,  we increased  holdings in Latin  America  outside of Mexico.
These stocks came on strong early in the period,  although they later  retreated
when  U.S.   interest  rates  popped  up.  Across  the  board,   we  focused  on
infrastructure  and consumer goods companies.  We still see excellent values and
growth  potential  throughout  the  region.   Brazil  in  particular  played  an
increasingly   important   role  with   holdings   such  as   Telecommunications
Brasileiras,  a leading  phone  provider.  Argentine  companies in the portfolio
include Telefonica de Argentina.

We also  added  holdings  in Hong  Kong  and  Russia,  in  part  because  of the
relatively  small effect U.S.  rates have on prices there.  Investments  in Hong
Kong  focused on  companies  positioned  to benefit  from  China's  development,
including Ek Chor China Motorcycle and China Tire Holdings.  In Russia, we found
some terrific bargains as elections approached.  We believed Boris Yeltsin would
prevail and that many  investors who were selling before the election would want
to return to Russia's  market  once the  election  was  resolved.  So far,  this
strategy  has  been  successful.  In  fact,  by the  end of the  period  we were
beginning to reduce the Fund's position in Russian investments to lock-in gains.
Interestingly,  the Fund's Russian  investments are in Russian  depositary trust
certificates   (RDCs),  which  trade  instead  of  the  underlying  stocks  they
represent.

                                     2
<PAGE>

We moved away from  holdings in Malaysia  and Mexico,  since those  markets move
sharply with changes in U.S. rates. We also reduced holdings in Poland and Korea
after  seeing  strong  gains.  In Korea,  the Fund still owns shares of industry
leaders such as Commercial Bank of Korea and Korea Mobile Telecommunication.

                              MOVING FORWARD

Going into the second half of 1996, we expect to see emerging  markets  continue
to  perform  well,  but still with  significant  volatility.  By and large,  the
economic growth rates and the potential for corporate gains in emerging  markets
still far outstrip that of developed  nations such as the Unites  States,  Japan
and  Germany.  Rising  U.S.  interest  rates could  constrain  gains in emerging
markets;  however, they could also lead investors away from U.S. stocks and into
other markets.

Politics should also calm down, although they remain a risk factor as always. We
firmly  believe  that  economic  and market  reforms in  emerging  nations  will
continue,  although  their  pace  and  focus  may  vary.  We have  already  seen
developing  countries  act to preserve the benefits  and growth  potential  that
economic  liberalization  has unveiled.  While you should be prepared to see the
Fund's  price move up or down from day to day,  we are  confident  that  Pioneer
Emerging Markets Fund is positioned to offer strong long- term growth.

One final note.  We are pleased to announce  that we will be providing  you with
quarterly  reports on your Fund,  beginning with the fiscal quarter ended August
31, 1996. In addition,  we are giving  semiannual and annual reports a facelift,
including  easy-to-find  and use graphic  summaries.  Your annual  report  dated
November 30, 1996, will reflect these improvements.  We wish to thank all of you
who took the time to respond to our questions about what you want to see in fund
reports.

The  following  pages contain the Fund's  audited  Schedule of  Investments  and
financial  statements as of May 31, 1996.  If you have any questions  about your
investment in Pioneer  Emerging  Markets Fund,  please  contact your  investment
representative,  or call Pioneer directly at 1-800-225-6292.  We appreciate your
support.

Respectfully,
/s/ John F. Cogan, Jr.
John F. Cogan, Jr.
Chairman and President,
Pioneer Emerging Markets Fund

                                     3
<PAGE>

PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              INVESTMENT IN SECURITIES -- 96.0%
              PREFFERED STOCKS -- 9.6%
155,299,950   Acesita S.A.                                                    $   637,814
 49,000,000   Banco Bradesco S.A.                                                 569,368
    580,000   Banco Itau S.A.                                                     235,010
    949,600   Brasmotor S.A.                                                      255,877
  1,410,000   Cia Cimento Portland Itau                                           399,709
     85,000   COFAP -- Cia Fabricadora de Pecas*                                  481,068
     27,000   Companhia Vale Do Rio Doce                                          566,613
     30,010   L.G. Securities Co. Ltd.*                                           331,350
 50,600,000   Metal Leve S.A.*                                                    466,313
 60,900,000   OSA S.A.*                                                           579,535
999,900,000   Randon Participacoes S.A.                                           620,994
    371,400   Sadia-Concordia S.A.                                                264,143
     24,440   Shinwon Corp*                                                       440,351
 52,000,000   Usinas Siderurgicas de Minas Gerais S.A.                             56,776
                                                                              -----------
              TOTAL PREFFERED STOCKS (Cost $5,947,904)                        $ 5,904,921
                                                                              -----------
              COMMON STOCKS -- 76.8%
              BASIC INDUSTRIES -- 13.8%
              CHEMICALS -- 1.8%
    325,800   Corimon S.A.C.A. (Sponsored A.D.R.)*                            $    40,725
    164,500   Indo Gulf Fertilizers and Chemicals Corp. Ltd. (G.D.R.)             279,650
     90,000   Reliance Industries Ltd.                                            613,782
     13,600   Reliance Industries Ltd. (G.D.R.)                                   207,400
                                                                              -----------
                                                                              $ 1,141,557
                                                                              -----------
              CONTAINERS -- 1.1%
  1,900,000   M.C. Packaging Ltd.                                             $   675,300
                                                                              -----------
              FOREST PRODUCTS -- 1.5%
    190,000   ITC Bhadrachalam Paperboard Ltd.                                $   574,690
    380,000   PT Inti Indorayon Utama                                             342,122
                                                                              -----------
                                                                              $   916,812
                                                                              -----------
              INDUSTRIAL MATERIALS -- 0.1%
  1,588,000   EGE Seramik Sanayi Ve Ticare*                                   $    59,608
                                                                              -----------
</TABLE>

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

                                     4
<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              COMMON STOCKS (continued)
              IRON & STEEL -- 4.2%
    118,000   Malayawata Steel Bhd.                                           $   201,354
     23,800   Sahaviriya Steel Industries Public Co. Ltd. (Local Shares)*          20,440
    945,500   Sahaviriya Steel Industries Public Co. Ltd.*                        811,996
     38,000   Steel Authority of India Ltd. (G.D.R.)                              541,500
     76,800   Tata Iron & Steel Company Ltd.                                      530,335
     46,600   Usinas Siderurgicas de Minas Gerais S.A. (Sponsored A.D.R.)         504,152
                                                                              -----------
                                                                              $ 2,609,777
                                                                              -----------
              NON-FERROUS METALS -- 1.0%
      7,600   Hindalco Industries Ltd.                                        $   285,230
    300,000   National Aluminum Co. Ltd.                                          340,277
                                                                              -----------
                                                                              $   625,507
                                                                              -----------
              PAPER PRODUCTS -- 2.3%
     79,233   Aracruz Cellulose S.A. (Sponsored A.D.R.)                       $   713,097
     85,000   Asia Pacific Resources International Holding Ltd.*                  584,375
    140,000   PT Indah Kiat Pulp & Paper Corp. (New)*                             133,548
                                                                              -----------
                                                                              $ 1,431,020
                                                                              -----------
              TIRE AND RUBBER -- 1.8%
    115,000   China Tire Holdings Ltd.                                        $ 1,121,250
                                                                              -----------
              TOTAL BASIC INDUSTRIES                                          $ 8,580,831
                                                                              -----------
              CAPITAL GOODS -- 2.7%
              CONSTRUCTION, BUILDING MATERIALS & ENGINEERING -- 2.7%
     75,000   Apasco, S.A. de C.V.                                            $   409,201
     28,000   Dahl International AB 144A*                                         386,941
     29,000   Empresas ICA S.A. De C.V. (Sponsored A.D.R.)*                       416,875
    265,000   NTS Steel Groups Co., Ltd.*                                         177,880
     13,000   Siam City Cement (Local Shares)                                     171,444
      7,000   Siam City Cement                                                     76,285
      9,660   TPI Polene Public Co., Ltd.                                          49,585
                                                                              -----------
              TOTAL CAPITAL GOODS                                             $ 1,688,211
                                                                              -----------
</TABLE>

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

                                     5
<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              COMMON STOCKS (continued)
              CONSUMER DURABLES -- 3.9%
              MOTOR VEHICLES -- 3.9%
     16,000   Bajaj Auto Ltd.                                                 $   436,011
     75,600   Ek Chor China Motorcycle Co. Ltd.                                 1,077,300
    100,000   Mirgor Sacifia (A.D.R.)*                                            280,000
    410,000   PT Astra International                                              615,220
                                                                              -----------
              TOTAL CONSUMER DURABLES                                         $ 2,408,531
                                                                              -----------
              CONSUMER NON-DURABLES -- 8.1%
              AGRICULTURE & FOOD -- 0.7%
     74,600   Charoen Pokphand Feedmill Public Co. Ltd.                       $   453,621
                                                                              -----------
              CONSUMER LUXURIES -- 0.3%
    560,000   Golden Harvest Entertainment Ltd.                               $   206,274
                                                                              -----------
              RETAIL & FOOD -- 1.0%
    645,000   Dairy Farm International Holdings Ltd.                          $   548,250
     28,000   Want Want Holdings Ltd. 144A*                                        65,240
                                                                              -----------
                                                                              $   613,490
                                                                              -----------
              RETAIL NON-FOOD -- 1.3%
    536,300   Cifra, S.A de C.V. (Series B)*                                  $   816,407
                                                                              -----------
              SOFT DRINKS -- 3.8%
    485,000   Embotelladores del Valle de Anahuac S.A. (B Shares)*            $   424,694
    245,000   Jugos de Valle S.A. (B Series)*                                     429,072
     28,000   Panamerican Beverages, Inc. (Class A)                             1,176,000
     32,900   Pepsi-Cola Puerto Rico Bottling Co. (Class B)                       312,550
                                                                              -----------
                                                                              $ 2,342,316
                                                                              -----------
              TEXTILES/CLOTHES -- 1.0%
    317,300   Asia Fiber Company Ltd.                                         $   128,418
     15,900   Grasim Industries Ltd.                                              256,115
     10,000   Raymond Ltd. (G.D.R.)                                               195,000
                                                                              -----------
                                                                              $   579,533
                                                                              -----------
              TOTAL CONSUMER NON-DURABLES                                     $ 5,011,641
                                                                              -----------
</TABLE>

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

                                     6
<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              COMMON STOCKS (continued)
              FINANCIAL -- 16.6%
              COMMERCIAL BANK -- 11.9%
  4,562,000   Akbank T.A.S.                                                   $   522,433
    900,000   Akbank T.A.S.*+                                                      69,041
     15,200   Banco Osorno y La Union (Sponsored A.D.R.)                          212,800
     13,000   Banco Totta & Acores (B Shares)                                     255,033
    138,000   Banco Wiese Ltd. (Sponsored A.D.R.)                                 914,250
     25,000   Bank Gdanski S.A. (G.D.R.)*                                         268,750
    307,800   Bank Inicjatyw Gospodarczych S.A.                                   309,716
      8,550   Bank Rozwoju Eksportu S.A.                                          208,708
      2,600   Bank Slaski S.A.                                                    190,400
     39,000   CIADEA S.A.*                                                        284,814
    140,000   Commercial Bank of Korea                                          1,453,214
    155,575   Grupo Financiero Banamex, Accival S.A. de C.V. (Class L)*           327,791
    870,000   Grupo Financiero Bancomer, Accival S.A. de C.V. (B Shares)*         398,491
    168,000   Korea First Bank                                                  1,556,019
     96,000   Siam City Bank Ltd.                                                 112,769
     36,000   State Bank of India Ltd.                                            288,657
                                                                              -----------
                                                                              $ 7,372,886
                                                                              -----------
              INSURANCE -- 0.3%
      9,000   Warta S.A.                                                      $   179,443
                                                                              -----------
              INVESTMENTS -- 1.2%
     81,000   CMIC Finance and Securities Co., Ltd.                           $   260,661
        343   Daewoo Securities Company Ltd.                                        9,638
  3,400,000   Global Menkul Degerler A.S.                                         123,298
     54,000   Grupo Financiero Inbursa, S.A. de C.V. (B Shares)                   217,513
     80,000   Peregrine Investment Holdings Ltd.                                  124,074
                                                                              -----------
                                                                              $   735,184
                                                                              -----------
              MISCELLANEOUS FINANCE -- 2.3%
     13,000   BHI Corp.                                                       $   190,125
    182,700   Pakistan Investment Fund Inc.                                     1,210,388
                                                                              -----------
                                                                              $ 1,400,513
                                                                              -----------
</TABLE>

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

                                     7
<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              COMMON STOCKS (continued)
              REAL ESTATE -- 0.9%
    605,000   PT Duta Anggada Realty                                          $   408,521
    240,300   Somprasong Land Public Co. Ltd.*                                    180,277
                                                                              -----------
                                                                              $   588,798
                                                                              -----------
              TOTAL FINANCIAL                                                 $10,276,824
                                                                              -----------
              SERVICES -- 2.6%
              BROADCASTING & MEDIA -- 0.7%
    102,000   Television Broadcasting Ltd.                                    $   403,397
                                                                              -----------
              HEALTH SERVICE AND PERSONAL CARE -- 0.5%
    888,000   Moulin International Holdings Ltd.                              $   327,091
                                                                              -----------
              HOTEL/RESTAURANT -- 0.9%
  1,114,000   Cafe de Coral Holdings Ltd.                                     $   341,947
     40,000   Overseas Union Enterprise Ltd.                                      218,672
                                                                              -----------
                                                                              $   560,619
                                                                              -----------
              PUBLISHING -- 0.5%
  7,250,000   Hurriyet Gazetecilik ve Matbaacilik AS                          $   295,203
                                                                              -----------
              TOTAL SERVICES                                                  $ 1,586,310
                                                                              -----------
              TECHNOLOGY -- 1.9%
              COMPUTER SERVICES -- 0.8%
     25,000   Nucleus Software Exports Ltd.*                                  $    21,401
     19,200   Shinawatra Computer Co., Plc                                        460,933
                                                                              -----------
                                                                              $   482,334
                                                                              -----------
              ELECTRONICS -- 1.1%
     62,300   Muramoto Electron Plc                                           $   186,954
     12,200   Nokia Corp. (A Shares) (A.D.R.)                                     530,700
                                                                              -----------
                                                                              $   717,654
                                                                              -----------
              TOTAL TECHNOLOGY                                                $ 1,199,988
                                                                              -----------
              TRANSPORTATION -- 1.0%
              SHIPS & SHIPPING -- 1.0%
     14,000   Great Eastern Shipping Co. Ltd. (G.D.R.)                        $   113,750
     66,700   Transportacion Maritima Mexicana S.A. de C.V. (Series L)
              (A.D.R.)                                                            525,263
                                                                              -----------
              TOTAL TRANSPORTATION                                            $   639,013
                                                                              -----------
</TABLE>

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

                                     8
<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              COMMON STOCKS (continued)
              UTILITIES -- 24.3%
              ELECTRIC UTILITY -- 5.5%
     35,000   BSES Ltd. (G.D.R.)                                              $   694,400
     62,450   Centrais Electricas Brasileiras S.A (Sponsored A.D.R.)              796,394
     23,000   CESC Ltd. (G.D.R.)                                                   69,000
     71,000   Huaneng Power International, Inc. (Sponsored A.D.R.)*             1,162,625
     81,100   Shandong Huaneng Power Co. Ltd. (A.D.R.)                            679,213
                                                                              -----------
                                                                              $ 3,401,632
                                                                              -----------
              TELECOMMUNICATIONS -- 18.8%
  1,768,000   ABC Communications Holdings Ltd.                                $   315,335
     88,000   Benpres Holdings Corp. (G.D.R.)*                                    748,000
  2,516,946   Champion Technology Holdings Ltd.                                   292,770
     72,000   Hellenic Telecommunications Organization S.A.*                    1,199,155
        690   Korea Mobile Telecommunication Corp.                                967,895
     71,000   Mahanagar Telephone Nigam Ltd.                                      441,154
  3,200,000   Netas Telekomunik                                                   641,303
      4,500   Philippine Long Distance Telephone Co. (Sponsored A.D.R.)           258,750
     12,000   Portugal Telecom S.A. (Sponsored A.D.R.)                            291,000
    310,000   Shinawatra Satellite Public Co. Ltd.                                630,380
      8,950   Telecom Argentina Stet-France Telecom S.A. (Sponsored
              A.D.R.)                                                             416,175
    455,000   TelecomAsia Corp. Public Co. Ltd. (Local Shares)*                   997,098
    217,000   TelecomAsia Corp. Public Co. Ltd.*                                  475,539
     28,200   Telecommunications Brasileiras S.A. (Sponsored A.D.R.)            1,815,375
     14,000   Telefonica de Argentina S.A. (Class B) (Sponsored A.D.R.)           407,750
    910,000   Teletas Telekomunikasyon Endustri ve Ticaret AS*                    295,267
    552,000   Thai Telephone & Communication Public Co. Ltd. (Local
              Shares)*                                                          1,351,339
     53,000   Thai Telephone & Communication Public Co. Ltd.*                     129,748
                                                                              -----------
                                                                              $11,674,033
                                                                              -----------
              TOTAL UTILITES                                                  $15,075,665
                                                                              -----------
</TABLE>

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

                                     9

<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
  Shares                                                                         Value
  ------                                                                         -----
<S>           <C>                                                             <C>
              COMMON STOCKS (continued)
              MISCELLANEOUS -- 1.9%
              CONGLOMERATES & HOLDINGS -- 1.9%
     76,000   Renong Bhd.                                                     $   126,641
      5,500   Loxley Public Company Ltd.                                           80,787
  1,360,000   Koc Holdings AS*                                                    289,859
    150,000   Murray & Roberts Holdings                                           662,651
                                                                              -----------
              TOTAL MISCELLANEOUS                                             $ 1,159,938
                                                                              -----------
              TOTAL COMMON STOCKS (Cost $46,554,638)                          $47,626,952
                                                                              -----------
Units
- -----
              RUSSIAN  DEPOSITARY TRUST  CERTIFICATES** -- 9.2% 
         11   Chernogorneft Sub-Trust (1 unit representing 10,000 shares
                of Chernogorneft)*                                            $ 1,012,000
          8   Irkutskenergo Sub-Trust (1 unit representing 200,000 shares
                of Irkutskenegro)*                                                588,000
          6   Lenonergo Sub-Trust (1 unit representing 100,000 shares of
                Lenenergo)*                                                        74,400
         47   Megionneftegaz Sub-Trust (1 unit representing 10,000 shares
                of Megionneftegaz) 144A*                                        1,118,600
        121   Mosenergo Sub-Trust (1 unit representing 10,000 shares of
                Mosenergo)*                                                       895,400
         43   Moscow City Telephone Network (MGTS) Sub-Trust (1 unit
                representing 50 shares of Moscow City Telephone Network
                (MGTS)*                                                           537,500
         43   Nizhny Novgorod Sviazinform Sub-Trust (1 unit representing
                10,000 shares of Nizhny Novgorod Sviazinform) 144A*               956,750
         30   Rostelecom Sub-Trust (1 unit representing 10,000 shares of
                Rosetelecom)*                                                     522,000
                                                                              -----------
              TOTAL RUSSIAN DEPOSITARY TRUST CERTIFICATES (Cost
                $3,493,770)                                                   $ 5,704,650
                                                                              -----------
              WARRANTS -- 0.4%
     84,000   PT Indah Kiat Pulp & Paper Corp.*                               $    36,553
      8,000   Peregrine Investment Holdings Ltd.*                                   2,629
    114,000   Overseas Union Enterprises Ltd.*                                    218,530
                                                                              -----------
              TOTAL WARRANTS (Cost $243,302)                                  $   257,712
                                                                              -----------
              TOTAL INVESTMENT IN SECURITIES (Cost $56,239,614)               $59,494,235
                                                                              ===========
</TABLE>

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

                                       10
<PAGE>
PIONEER EMERGING MARKETS FUND
SCHEDULE OF INVESTMENTS
May 31, 1996 (continued)


<TABLE>
<CAPTION>
 Principal
  Amount                                                                         Value
  ------                                                                         -----
<S>           <C>                                                                <C>
              TEMPORARY CASH INVESTMENT -- 4.0%
              REPURCHASE AGREEMENT -- 4.0%
$ 2,500,000   Chase Manhattan Bank, 5/31/96, 5.30%, repurchase price of
              $2,500,000 plus accrued  interest on 6/3/96, collateralized
              by $2,520,000 U.S. Treasury Note, 6.75%, 4/30/00                $ 2,500,000
                                                                              -----------
              TOTAL TEMPORARY CASH INVESTMENT (Cost $2,500,000)               $ 2,500,000
                                                                              -----------
              TOTAL INVESTMENT IN SECURITIES AND TEMPORARY CASH INVESTMENT
              -- 100.0%  (Cost $58,739,614)(a)(b)(c)                          $61,994,235
                                                                              ===========
</TABLE>

+    Restricted from re-sale until a later date to be determined by the company.
     At May 31, 1996, the value of this security  amounted to $69,041 or 0.1% of
     total net assets.
*    Non-income producing security.
144A Security is exempt from registration  under Rule 144A of the Securities Act
     of 1933. Such securities may be resold normally to qualified  institutional
     buyers in a  transaction  exempt from  registration.  At May 31, 1996,  the
     value of these  securities  amounted  to  $2,527,531  or 4.1% of total  net
     assets.
**   The Russian Depositary Trust Certificates  represent  fractional  undivided
     interests  in  Sub-Trusts  of The Russian  Depositary  Trust,  a unit trust
     established  under the laws of the Cayman  Islands.  Each  Sub-Trust  has a
     specific number of shares of stock of a designated  company organized under
     the laws of the Russian Federation.  The accompanying  portfolio designates
     the  shares of stock in each  Sub-Trust  whose  values  are based  upon the
     closing prices of the underlying shares in such Sub-Trust.
(a)  At May 31, 1996, the net unrealized  gain on investments  based on cost for
     federal income tax purposes of $58,775,668 was as follows:

<TABLE>
   <S>                                                               <C>
   Aggregate gross unrealized gain for all investments in which
     there is an excess of value over tax cost                       $  6,682,603
   Aggregate gross unrealized loss for all investments in which
     there is an excess of tax cost over value                         (3,464,036)
                                                                     ------------
   Net unrealized gain                                               $  3,218,567
                                                                     ============
</TABLE>

(b)  At  November  30,  1995,  the  Fund  had a  capital  loss  carryforward  of
     $1,016,450 which will expire in 2003 if not utilized.
(c)  Summary of investments by country of issue, as a percentage of total equity
     holdings, is as follows:

<TABLE>
             <S>                                               <C>
             Brazil                                            15.1%
             Thailand                                          11.4
             India                                              9.9
             Russia                                             9.6
             Hong Kong                                          9.1
             Mexico                                             8.6
             South Korea                                        8.0
             Turkey                                             3.9
             Indonesia                                          3.6
             China                                              3.1
             Argentina                                          2.3
             Pakistan                                           2.0
             Greece                                             2.0
             Poland                                             1.9
             Philippines                                        1.7
             Peru                                               1.5
             South Africa                                       1.1
             Others (Individually less than 1%)                 5.2
                                                              ----- 
                                                              100.0%
                                                              ===== 
</TABLE>

Purchases and sales of securities (excluding temporary cash investments) for the
six  months  ended  May  31,  1996  aggregated   $59,536,193  and   $24,775,521,
respectively.

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

                                    11

<PAGE>
PIONEER EMERGING MARKETS FUND
BALANCE SHEET
May 31, 1996

<TABLE>
<S>                                                                  <C>
ASSETS:
  Investment in securities, at value (including temporary cash
   investments of $2,500,000) (cost $58,739,614; see Schedule of
   Investments and Note 1)                                           $61,994,235
  Foreign currencies, at value (Note 1)                                  238,719
  Cash                                                                   565,804
  Receivables --
   Forward foreign currency settlement contracts -- net (Note 1)           2,218
   Investment securities sold                                            358,864
   Trust shares sold                                                   1,046,106
   Dividends, interest and foreign taxes withheld (Note 1)               160,222
  Other                                                                      119
                                                                     -----------
     Total assets                                                    $64,366,287
                                                                     -----------
LIABILITIES:
  Payables --
   Investment securities purchased                                   $ 2,891,888
   Fund shares repurchased                                                41,913
  Due to affiliates (Notes 2, 3 and 4)                                    91,233
  Accrued expenses (Note 1)                                              282,563
                                                                     -----------
     Total liabilities                                               $ 3,307,597
                                                                     -----------
NET ASSETS:
  Paid-in capital (Note 1)                                           $56,620,952
  Accumulated undistributed net investment income (Note 1)                58,268
  Accumulated undistributed net realized gain on investments and foreign
   currency transactions (Note 1)                                      1,367,460
  Net unrealized gain on investments (Note 1)                          3,015,088
  Net unrealized loss on other assets and liabilities denominated in
   foreign currencies (Note 1)                                            (3,078)
                                                                     -----------
     Total net assets                                                $61,058,690
                                                                     ===========
NET ASSET VALUE PER SHARE:
Class A -- (based on $37,899,249 / 2,609,553 shares of beneficial interest
  outstanding -- unlimited number of shares authorized)              $     14.52
                                                                     ===========
Class B -- (based on $20,838,321 / 1,451,039 shares of beneficial interest
  outstanding -- unlimited number of shares authorized)              $     14.36
                                                                     ===========
Class C -- (based on 2,321,120 / 161,751 shares of beneficial interest
  outstanding -- unlimited number of shares authorized)              $     14.35
                                                                     ===========
MAXIMUM OFFERING PRICE:
Class A                                                              $     15.41
                                                                     ===========
</TABLE>

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

                                    12
<PAGE>
PIONEER EMERGING MARKETS FUND
STATEMENT OF OPERATIONS
For the Six Months Ended May 31, 1996

<TABLE>
<S>                                                                                   <C>
INVESTMENT INCOME (NOTE 1):
  Dividends (net of foreign taxes withheld of $41,136)                                $  429,997
  Interest                                                                                76,516
  Other (Note 6)                                                                          14,845
                                                                                      ----------
     Total investment income                                                          $  521,338
                                                                                      ----------
EXPENSES:
  Management fees (Note 2)                                                            $  227,305
  Distribution fees (Note 4)
   Class A                                                                                25,503
   Class B                                                                                55,640
   Class C                                                                                 4,762
  Transfer agent fees (Note 3)
   Class A                                                                                38,472
   Class B                                                                                19,067
   Class C                                                                                   802
  Registration fees                                                                       30,906
  Professional fees                                                                       99,549
  Accounting (Note 2)                                                                     53,016
  Custodian fees                                                                          79,185
  Printing                                                                                12,126
  Fees and expenses of nonaffiliated trustees                                              8,248
  Miscellaneous                                                                           15,399
                                                                                      ----------
     Total expenses                                                                   $  669,980
   Less fees paid indirectly (Note 5)                                                     (4,641)
   Less management fees waived by Pioneering Management Corporation (Note
     2)                                                                                 (206,253)
                                                                                      ----------
   Net expenses                                                                       $  459,086
                                                                                      ----------
     Net investment income                                                            $   62,252
                                                                                      ----------
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FOREIGN CURRENCY
  TRANSACTIONS:
  Net realized gain (loss) from:
   Investments (Note 1)                                                  $2,480,915
   Forward foreign currency contracts and other assets and liabilities
     denominated in foreign currencies (Note 1)                             (63,825)  $2,417,090
                                                                         ----------
  Net unrealized gain from:
   Change in net unrealized gain on investments (net of reserve of capital
     gains taxes of $239,533) (Note 1)                                   $4,884,926
   Change in net unrealized gain on other assets and liabilities denominated
     in foreign currencies (Note 1)                                          22,310    4,907,236
                                                                         ----------   ----------
Net gain on investments and foreign currency transactions                             $7,324,326
                                                                                      ----------
Net increase in net assets resulting from operations                                  $7,386,578
                                                                                      ==========
</TABLE>

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

                                    13
<PAGE>
PIONEER EMERGING MARKETS FUND
STATEMENTS OF CHANGES IN NET ASSETS
For the Six Months Ended May 31, 1996 and the Year Ended November 30, 1995


<TABLE>
<CAPTION>
                                                                         Six Months Ended       Year Ended
                                                                           May 31, 1996     November 30, 1995
                                                                           ------------     -----------------
<S>                                                                        <C>              <C>
FROM OPERATIONS:
  Net investment income                                                    $     62,252        $     19,075
  Net realized gain (loss) on investments and forward foreign currency
   transactions                                                               2,417,090          (1,124,331)
  Change in net unrealized gain/loss on investments and foreign currency
   transactions                                                               4,907,236             372,226
                                                                           ------------        ------------
     Net increase (decrease) in net assets resulting from operations       $  7,386,578        $   (733,030)
                                                                           ------------        ------------
DISTRIBUTIONS TO SHAREHOLDERS FROM:
  Net investment income:
   Class A ($0.00 and $0.06 per share, respectively)                       $    --             $    (74,851)
   Class B ($0.00 and $0.03 per share, respectively)                            --                  (11,716)
  Net realized gain on investments:
   Class A ($0.00 and $0.13 per share, respectively)                            --                 (175,464)
   Class B ($0.00 and $0.13 per share, respectively)                            --                  (52,148)
                                                                           ------------        ------------
     Decrease in net assets resulting from distributions to shareholders   $    --             $   (314,179)
                                                                           ------------        ------------
FROM FUND SHARE TRANSACTIONS:
  Net proceeds from sale of shares                                         $ 48,330,580        $ 21,995,056
  Net asset value of shares issued to shareholders in reinvestment of
   distributions                                                                --                  273,812
  Cost of shares repurchased                                                (15,727,731)        (21,538,201)
                                                                           ------------        ------------
     Increase in net assets resulting from fund share transactions         $ 32,602,849        $    730,667
                                                                           ------------        ------------
     Net increase (decrease) in net assets                                 $ 39,989,427        $   (316,542)
NET ASSETS:
  Beginning of period                                                        21,069,263          21,385,805
                                                                           ------------        ------------
  End of period (including accumulated net investment income (loss) of
   $58,268 and ($3,984), respectively)                                     $ 61,058,690        $ 21,069,263
   =======     =======                                                     ============        ============
</TABLE>

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

                                    14

<PAGE>
PIONEER EMERGING MARKETS FUND
STATEMENTS OF CHANGES IN NET ASSETS
For the Six Months  Ended May 31,  1996 and the Year  Ended  November  30,  1995
(continued)

<TABLE>
<CAPTION>
                                                           Six Months Ended               Year Ended
                                                             May 31, 1996             November 30, 1995
                                                             ------------             -----------------
                                                        Shares        Amount        Shares        Amount
                                                        ------        ------        ------        ------
<S>                                                    <C>         <C>            <C>          <C>
CLASS A
  Shares sold                                          2,159,599   $  29,031,587   1,402,890   $ 15,895,702
  Shares issued to shareholders in reinvestment of
   distributions                                          --            --            18,565        217,663
  Less shares repurchased                               (883,628)   (11,648,288)  (1,482,458)   (16,889,924)
                                                       ---------   ------------      -------   ------------
  Net increase (decrease)                              1,275,970   $ 17,383,299      (61,003)  $   (776,559)
                                                       =========   ============      =======   ============ 
CLASS B
  Shares sold                                          1,249,613   $ 16,841,752      539,792   $  6,099,354
  Shares issued to shareholders in reinvestment of
   distributions                                          --            --             4,819         56,149
  Less shares repurchased                               (292,084)    (3,819,230)    (405,299)    (4,648,277)
                                                        --------     ----------     --------     ---------- 
  Net increase                                           957,529   $ 13,022,522      139,312   $  1,507,226
                                                         =======   ============      =======   ============
CLASS C*
  Shares sold                                            181,647   $  2,457,241       --       $    --
  Shares issued to shareholders in reinvestment of
   distributions                                          --            --            --            --
  Less shares repurchased                                (19,896)      (260,213)      --            --
                                                       ---------   ------------      -------   ------------
  Net increase                                           161,751   $  2,197,028       --       $    --
                                                         =======   ============      =======   ============
</TABLE>

* Class C Shares were first publicly offered on January 31, 1996.

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

                                    15

<PAGE>
PIONEER EMERGING MARKETS FUND
FINANCIAL HIGHLIGHTS
Selected Data for a Share Outstanding for the Periods Presented


<TABLE>
<CAPTION>
                                                          Six Months Ended      Year Ended        June 23, 1994 to
                                                           May 31, 1996++    November 30, 1995   November 30, 1994++
                                                           --------------    -----------------   -------------------
<S>                                                        <C>               <C>                 <C>
CLASS A
Net asset value, beginning of period                          $ 11.56             $ 12.24              $ 12.50
                                                              -------             -------              -------
Increase (decrease) from investment operations:
  Net investment income                                       $  0.04             $  0.04              $  0.08
  Net realized and unrealized gain (loss) on investments
   and foreign currency related transactions                     2.92               (0.53)               (0.34)
                                                              -------             -------              -------
     Net increase (decrease) from investment operations       $  2.96             $ (0.49)             $ (0.26)
Distributions to shareholders from:
  Net investment income                                         --                  (0.06)               --
  Net realized gain                                             --                  (0.13)               --
                                                              -------             -------              -------
Net increase (decrease) in net asset value                    $  2.96             $ (0.68)             $ (0.26)
                                                              -------             -------              -------
Net asset value, end of period                                $ 14.52             $ 11.56              $ 12.24
                                                              =======             =======              =======
Total return*                                                   25.61%               4.07%               (2.08%)
Ratio of net expenses to average net assets                      2.27%**+            2.27%+               2.25%**
Ratio of net investment income to average net assets             0.57%**+            0.24%+               1.85%**
Portfolio turnover rate                                        146.56%**           246.68%              259.22%**
Average commission rate paid per exchange listed
  transaction+++                                              $0.0002               --                   --
Net assets, end of period (in thousands)                      $37,900             $15,411              $17,067
Ratios assuming no waiver of management  fees and  assumption of expenses by PMC
  and no reduction for fees paid indirectly:
   Net expenses                                                  3.46%**             3.95%                4.13%**
   Net investment loss                                          (0.62%)**           (1.44%)              (0.03%)**
Ratios assuming  waiver of management fees and assumption of expenses by PMC and
  reduction for fees paid indirectly:
   Net expenses                                                  2.25%**             2.25%               --
   Net investment income                                         0.59%**             0.27%               --

</TABLE>

  + Ratios assuming no reduction for fees paid indirectly.
 ++ The per share data is based upon average shares outstanding for the
    periods presented.
+++ Amount  may  fluctuate  from  period  to  period  as a result  of  portfolio
    transactions  executed in different  markets  where  trading  practices  and
    commission rate structures may vary.
  * Assumes  initial  investment  at net asset  value at the  beginning  of each
    period,  reinvestment of all distributions,  the complete  redemption of the
    investment  at net  asset  value  at the end of  each  period  and no  sales
    charges.  Total  return  would be reduced if sales  charges  were taken into
    account.
 ** Annualized.

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

                                    16
<PAGE>
PIONEER EMERGING MARKETS FUND
FINANCIAL HIGHLIGHTS
Selected Data for a Share Outstanding for the Periods Presented
(continued)

<TABLE>
<CAPTION>
                                                          Six Months Ended      Year Ended        June 23, 1994 to
                                                           May 31, 1996++    November 30, 1995   November 30, 1994++
                                                           --------------    -----------------   -------------------
<S>                                                        <C>               <C>                 <C>
CLASS B
Net asset value, beginning of period                          $ 11.47             $ 12.19              $ 12.50
                                                              -------             -------              -------
Increase (decrease) from investment operations:
  Net investment income (loss)                                $ (0.01)            $ (0.04)             $  0.02
  Net realized and unrealized gain (loss) on investments
   and foreign currency related transactions                     2.90               (0.52)               (0.33)
                                                              -------             -------              -------
   Net increase (decrease) from investment operations         $  2.89             $ (0.56)             $ (0.31)
Distributions to shareholders from:
  Net investment income                                         --                  (0.03)               --
  Net realized gain                                             --                  (0.13)               --
                                                              -------             -------              -------
Net increase (decrease) in net asset value                    $  2.89             $ (0.72)             $ (0.31)
                                                              -------             -------              -------
Net asset value, end of period                                $ 14.36             $ 11.47              $ 12.19
                                                              =======             =======              =======
Total return*                                                   25.20%              (4.62%)              (2.48%)
Ratio of net expenses to average net assets                      3.01%**+            3.00%+               3.33%**
Ratio of net investment income (loss) to average net assets     (0.15%)**+           0.47%+               0.77%**
Portfolio turnover rate                                        146.56%             246.68%              259.22%**
Average commission rate paid per exchange listed
  transaction+++                                              $0.0002               --                   --
Net assets, end of period (in thousands)                      $20,838             $ 5,658              $ 4,319
Ratios assuming no waiver of management  fees and  assumption of expenses by PMC
  and no reduction for fees paid indirectly:
   Net expenses                                                  4.04%**             4.57%                5.21%**
   Net investment loss                                          (1.18%)**           (2.05%)              (1.11%)**
Ratios assuming  waiver of management fees and assumption of expenses by PMC and
  reduction for fees paid indirectly:
   Net expenses                                                  2.98%**             2.96%               --
   Net investment loss                                          (0.12%)**           (0.43%)              --

</TABLE>

  + Ratios assuming no reduction for fees paid indirectly.
 ++ The per share data presented above is based upon average shares
    outstanding for the period presented.
+++ Amount  may  fluctuate  from  period  to  period  as a result  of  portfolio
    transactions  executed in different  markets  where  trading  practices  and
    commission rate structures may vary.
  * Assumes  initial  investment  at net asset  value at the  beginning  of each
    period,  reinvestment of all distributions,  the complete  redemption of the
    investment  at net  asset  value  at the end of  each  period  and no  sales
    charges.  Total  return  would be reduced if sales  charges  were taken into
    account.
 ** Annualized.

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

                                    17
<PAGE>
PIONEER EMERGING MARKETS FUND
FINANCIAL HIGHLIGHTS
Selected Data for a Share Outstanding for the Periods Presented
(continued)

<TABLE>
<CAPTION>
                                                                January 31, 1996
                                                                       to
                                                                 May 31, 1996++
                                                                 --------------
<S>                                                              <C>
CLASS C***
Net asset value, beginning of period                                $ 13.22
                                                                    -------
Increase from investment operations:
  Net investment income                                             $  0.01
  Net realized and unrealized gain on investments and foreign
   currency related transactions                                       1.12
                                                                    -------
Net increase in net asset value                                     $  1.13
                                                                    -------
Net asset value, end of period                                      $ 14.35
                                                                    =======
Total return*                                                          8.55%
Ratio of net expenses to average net assets                            2.92%**+
Ratio of net investment income to average net assets                   0.04%**+
Portfolio turnover rate                                              146.56%**
Average commission rate paid per exchange listed
  transaction+++                                                    $0.0002
Net assets, end of period (in thousands)                            $ 2,321
Ratios assuming no waiver of management fees by PMC and
  no reduction for fees paid indirectly:
   Net expenses                                                        3.74%**
   Net investment loss                                                (0.78%)**
Ratios  assuming  waiver of  management  fees by PMC and reduction for fees paid
  indirectly:
   Net expenses                                                        2.85%**
   Net investment income                                               0.11%**
</TABLE>

  + Ratios assuming no reduction for fees paid indirectly.
 ++ The per share data presented above is based upon average shares
    outstanding for the period presented.
+++ Amount  may  fluctuate  from  period  to  period  as a result  of  portfolio
    transactions  executed in different  markets  where  trading  practices  and
    commission rate structures may vary.
  * Assumes  initial  investment  at net asset  value at the  beginning  of each
    period,  reinvestment of all distributions,  the complete  redemption of the
    investment  at net  asset  value  at the end of  each  period  and no  sales
    charges.  Total  return  would be reduced if sales  charges  were taken into
    account.
 ** Annualized.
*** Class C shares were first publicly offered on January 31, 1996.

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

                                    18
<PAGE>
PIONEER EMERGING MARKETS FUND
NOTES TO FINANCIAL STATEMENTS
May 31, 1996

1.  Pioneer  Emerging  Markets  Fund (the  Fund) is a  Delaware  business  trust
registered under the Investment  Company Act of 1940 as a diversified,  open-end
management  investment company.  The investment objective of the Fund is to seek
long-term  growth of capital by investing  primarily in securities of issuers in
countries with emerging economies or securities markets.

The Board of Trustees (the  Trustees) has authorized the issuance of three share
classes of the Fund,  designated as Class A, Class B and Class C shares. Class C
shares were first  publicly  offered on January 31, 1996. The shares of Class A,
Class B, and Class C represent an interest in the same  portfolio of investments
of the Fund  and  have  equal  rights  to  voting,  redemptions,  dividends  and
liquidation,  except that each class of shares can bear different transfer agent
and  distribution  fees,  and have  exclusive  voting rights with respect to the
distribution  plans  that  have  been  adopted  by Class A,  Class B and Class C
shareholders, respectively.

The Fund's financial  statements have been prepared in conformity with generally
accepted accounting principles that require the management of the Fund to, among
other things, make estimates and assumptions that affect the reported amounts of
assets and liabilities,  the disclosure of contingent  assets and liabilities at
the date of the financial  statements  and the reported  amounts of revenues and
expenses  during the reporting  periods.  Actual results could differ from those
estimates.  The  following  is a  summary  of  significant  accounting  policies
consistently  followed by the Fund, which are in conformity with those generally
accepted in the investment company industry:

A. Security Valuation -- Security  transactions are recorded on trade date. Each
day,  securities  are  valued at the last sale price on the  principal  exchange
where they are traded. Securities that have not traded on the date of valuation,
or securities for which sales prices are not generally  reported,  are valued at
the mean  between the last bid and asked  prices.  Securities  for which  market
quotations  are not  readily  available  are  valued  at  their  fair  value  as
determined  by, or under the  direction  of,  the  Trustees.  Trading in foreign
securities  is  substantially  completed  each day at various times prior to the
close of the New York  Stock  Exchange.  The values of such  securities  used in
computing  the net asset value of the Fund's  shares are  determined  as of such
times.  Temporary cash investments are valued at amortized cost. Dividend income
is recorded on the ex-dividend  date, except that certain dividends from foreign
securities  where the  ex-dividend  date may have passed are recorded as soon as
the Fund is informed of the ex-dividend date. Interest income is recorded on the
accrual  basis,  net of  unrecoverable  foreign taxes withheld at the applicable
country rates.

Gains and losses from sales of  investments  are  calculated on the  "identified
cost" method for both financial reporting and federal income tax purposes. It is
the Fund's  practice  to first  select for sale those  securities  that have the
highest cost and also qualify for long-term  capital gain or loss  treatment for
tax purposes.

The  Fund's  investments  in  emerging  markets  or  countries  with  limited or
developing  markets may  subject the Fund to a greater  degree of risk than in a
developed market.  Risks associated with these developing markets,  attributable
to  political,  social or economic  factors,  may affect the price of the Fund's
investments  and income  generated by these  investments,  as well as the Fund's
ability to repatriate such amounts.

B. Foreign Currency Translation -- The books and records of the Fund are
maintained in U.S. dollars. Amounts de-

                                    19
<PAGE>
PIONEER EMERGING MARKETS FUND
NOTES TO FINANCIAL STATEMENTS
May 31, 1996 (continued)

nominated in foreign currencies are translated into U.S. dollars using
current exchange rates.

Net realized gains and losses on foreign currency transactions represent,  among
other things,  the net realized gains and losses on foreign currency  contracts,
disposition  of foreign  currencies  and the  difference  between  the amount of
income accrued and the U.S. dollar actually  received.  Further,  the effects of
changes in foreign currency  exchange rates on investments are not segregated in
the statement of operations from the effects of changes in market price of those
securities but are included with the net realized and unrealized gain or loss on
investments.

C. Forward  Foreign  Currency  Contracts -- The Fund enters into forward foreign
currency  contracts  (contracts) for the purchase or sale of a specific  foreign
currency  at a fixed price on a future  date as a hedge or  cross-hedge  against
either  specific  investment  transactions   (settlement  hedges)  or  portfolio
positions  (portfolio  hedges).  All contracts are marked to market daily at the
applicable  exchange  rates,  and any resulting  unrealized  gains or losses are
recorded in the Fund's financial statements. The Fund records realized gains and
losses  at the  time a  portfolio  hedge  is  offset  by  entry  into a  closing
transaction or  extinguished  by delivery of the currency.  Risks may arise upon
entering into these contracts from the potential  inability of counterparties to
meet the terms of the contract and from unanticipated  movements in the value of
foreign currency  relative to the U.S. dollar.  As of May 31, 1996, the Fund had
no  outstanding  portfolio  hedges.  The Fund's gross forward  foreign  currency
settlement  contracts  receivable and payable were  $1,721,444  and  $1,719,226,
respectively, resulting in a net receivable of $2,218.

D.  Taxes -- It is the  Fund's  policy to comply  with the  requirements  of the
Internal  Revenue Code  applicable  to  regulated  investment  companies  and to
distribute all of its taxable income and net realized  capital gains, if any, to
its shareholders. Therefore, no federal income tax provision is required.

In addition to the  requirements of the Internal Revenue Code, the Fund may also
be  required  to pay  local  taxes on net  realized  capital  gains  in  certain
countries.  The  required  capital  gains  taxes,  if  any,  are  determined  in
accordance with local tax laws. In determining  daily net asset value,  the Fund
estimates  the reserve for capital  gains  taxes,  if any,  associated  with net
unrealized  gains on certain  portfolio  securities.  The estimated  reserve for
capital gains taxes,  if any, is based on the holding periods of such securities
and the related tax rates, tax loss carryforwards (if applicable) and other such
factors.  Included in accrued  expenses is $239,533 in reserve for capital gains
taxes at May 31, 1996.  During the six months ended May 31, 1996,  the Fund paid
no capital gains taxes on the sale of certain foreign securities.

The  characterization  of distributions to shareholders for financial  reporting
purposes is  determined  in  accordance  with income tax rules.  Therefore,  the
source of the Fund's  distributions  may be shown in the accompanying  financial
statements as either from or in excess of net investment  income or net realized
gain on investment transactions, or from paid- in capital, depending on the type
of book/tax differences that may exist.

E. Fund Shares -- The Fund records sales and repurchases of its fund
shares on trade date. Net losses, if any, as a result of cancellations are
absorbed by Pioneer Funds Distributor, Inc. (PFD), the principal
underwriter for the Fund and an indirect subsidiary of The Pioneer Group,
Inc. (PGI). PFD earned $38,919 in underwriting commissions on the sale of
fund shares during the six months ended May

                                    20
<PAGE>
PIONEER EMERGING MARKETS FUND
NOTES TO FINANCIAL STATEMENTS
May 31, 1996 (continued)

31, 1996. Distributions to shareholders are recorded as of the ex-dividend date.
Distributions paid by the Fund, if any, with respect to each class of shares are
calculated in the same manner,  at the same time, on the same day and are in the
same  amount,  except that Class A, Class B, and Class C shares  bear  different
transfer agent and distribution fees.

F. Class  Allocations -- Distribution  fees are calculated  based on the average
daily net asset value attributable to Class A, Class B and Class C shares of the
Fund,  respectively.  Shareholders  of Class A,  Class B and  Class C share  all
expenses and fees paid to the transfer agent,  Pioneering  Services  Corporation
(PSC),  for their services,  which are allocated based on the number of accounts
in each class and the ratable allocation of related out-of-pocket  expenses (see
Note 3). Income,  common  expenses and realized and unrealized  gains and losses
are  calculated  at the Fund  level and  allocated  daily to each class of share
based on the  respective  percentage  of adjusted net assets at the beginning of
the day.

G. Repurchase  Agreements -- The Fund may enter into repurchase  agreements.  At
the  time  the  Fund  enters  into a  repurchase  agreement,  the  value  of the
underlying security (collateral),  including accrued interest,  will be equal to
or exceed the value of the repurchase  agreement,  and in the case of repurchase
agreements  exceeding one day, the value of the underlying  security,  including
accrued interest, is required during the term of the agreement to be equal to or
exceed the value of the repurchase agreement.  The underlying securities for all
repurchase  agreements are held in safekeeping in the  customer-only  account of
the Fund's custodian, or at the Federal Reserve Bank. If the seller defaults and
the value of the collateral declines, or if bankruptcy proceedings commence with
respect to the seller of the security, realization of the collateral by the Fund
may be delayed or limited.

2. Pioneering  Management  Corporation  (PMC),  the Fund's  investment  adviser,
manages the Fund's portfolio and is a wholly owned subsidiary of PGI. Management
fees are  calculated  daily at the annual  rate of 1.25% of the  Fund's  average
daily net assets.

PMC has agreed not to impose a portion of its management fee and to assume other
operating expenses of the Fund to the extent necessary to limit Class A expenses
to 2.25% of the average  daily net assets  attributable  to Class A shares;  the
portion of the  Fund-wide  expenses  attributable  to Class B and Class C shares
will be reduced  only to the extent that such  expenses  are reduced for Class A
shares.  PMC's  agreement  is  voluntary  and  temporary  and may be  revised or
terminated at any time.

In  addition,  under the  management  agreement,  certain  services  and  costs,
including accounting,  regulatory reporting and insurance premiums,  are paid by
the Fund.  Included  in due to  affiliates  are $37,581 in  management  fees and
$6,622 in accounting fees payable to PSC at May 31, 1996.

3. PSC, a wholly owned subsidiary of PGI,  provides  substantially  all transfer
agent and shareholder services to the Fund, at negotiated rates. Included in due
to affiliates is $17,944 in transfer fees payable to PSC at May 31, 1996.

4. The Fund  adopted a Plan of  Distribution  for each class of shares  (Class A
Plan,  Class B Plan and Class C Plan) in  accordance  with Rule 12b-1  under the
Investment Company Act of 1940.  Pursuant to the Class A Plan, the Fund pays PFD
a  service  fee of up to  0.25%  of the  Fund's  average  daily  net  assets  in
reimbursement of its actual expen-

                                    21
<PAGE>
PIONEER EMERGING MARKETS FUND
NOTES TO FINANCIAL STATEMENTS
May 31, 1996 (continued)

ditures to finance activities  primarily intended to result in the sale of Class
A shares. Pursuant to the Class B Plan and Class C Plan, the Fund pays PFD 1.00%
of the average daily net assets  attributable  to each class of shares.  The fee
consists  of a  0.25%  service  fee  and a  0.75%  distribution  fee  paid  as a
compensation  for  personal  services  and/or  account  maintenance  services or
distribution services with regard to Class B and Class C shares. Included in due
to affiliates is $29,086 in distribution fees payable to PFD at May 31, 1996.

In addition,  Class B shares that are redeemed  within six years of purchase are
subject  to a  contingent  deferred  sales  charge  (CDSC)  at  declining  rates
beginning  at 4.0%  based on the lower of cost or market  value of shares  being
redeemed.  Redemptions of Class C shares within one year of purchase are subject
to a CDSC of 1.00%.  Proceeds  from the CDSC are paid to PFD. For the six months
ended May 31, 1996, CDSCs in the amount of $13,991 were paid to PFD.

5. The Fund has entered into certain expense offset arrangements  resulting in a
reduction in the Fund's total  expenses.  For the six months ended May 31, 1996,
the Fund's expenses were reduced by $4,641 under such arrangements.

6. During the six months ended May 31, 1996,  PMC reimbursed the Fund $14,845 in
connection with costs incurred on certain portfolio transactions.

                                    22
<PAGE>
PIONEER EMERGING MARKETS FUND
REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
TO THE SHAREHOLDERS AND THE BOARD OF TRUSTEES OF PIONEER EMERGING MARKETS
FUND:

We have audited the accompanying balance sheet of Pioneer Emerging Markets Fund,
including  the  schedule of  investments,  as of May 31,  1996,  and the related
statement  of  operations,  statements  of changes  in net assets and  financial
highlights for the periods presented.  These financial  statements and financial
highlights are the responsibility of the Fund's  management.  Our responsibility
is to express an opinion on these financial  statements and financial highlights
based on our audits.

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

In our opinion,  the financial  statements and financial  highlights referred to
above  present  fairly,  in all material  respects,  the  financial  position of
Pioneer Emerging Markets Fund as of May 31, 1996, the results of its operations,
the  changes  in its  net  assets  and  financial  highlights  for  the  periods
presented, in conformity with generally accepted accounting principles.

Boston, Massachusetts
July 1, 1996                                ARTHUR ANDERSEN LLP

                                    23
<PAGE>
                         PIONEER EMERGING MARKETS FUND
                                 60 State Street
                           Boston, Massachusetts 02109
 OFFICERS
 JOHN F. COGAN, JR.
 Chairman and President
 DAVID D. TRIPPLE
 Executive Vice President
 NORMAN KURLAND
 Senior Vice President
 WILLIAM H. KEOUGH
 Treasurer
 JOSEPH P. BARRI
 Secretary

 TRUSTEES
 JOHN F. COGAN, JR.
 RICHARD H. EGDAHL, M.D.
 MARGARET B.W. GRAHAM
 JOHN W. KENDRICK
 MARGUERITE A. PIRET
 DAVID D. TRIPPLE
 STEPHEN K. WEST
 JOHN WINTHROP

 INVESTMENT ADVISER
 PIONEERING MANAGEMENT
 CORPORATION

 PRINCIPAL UNDERWRITER
 PIONEER FUNDS
 DISTRIBUTOR, INC.

 CUSTODIAN
 BROWN BROTHERS
 HARRIMAN & CO.

 INDEPENDENT PUBLIC
 ACCOUNTANTS
 ARTHUR ANDERSEN LLP

 LEGAL COUNSEL
 HALE AND DORR

 SHAREHOLDER
 SERVICES AND
 TRANSFER AGENT
 PIONEERING SERVICES
 CORPORATION
 60 State Street
 Boston, Massachusetts
 02109

 Please call Pioneer for information on:
 Existing accounts, new accounts, prospectuses,
 applications, and services forms............................. 1-800-225-6292
 Fund yields and prices....................................... 1-800-225-4321
 Toll-free fax ............................................... 1-800-225-4240
 Retirement plans ............................................ 1-800-622-0176
 Telecommunications Device for the
 Deaf (TDD) .................................................. 1-800-225-1997

 When  distributed to persons who are not  shareowners of the Fund,  this report
 must be accompanied by a current  prospectus,  which  discusses the objectives,
 policies, sales charges and other information about the Fund.



 0796-2592
 (C)Pioneer Funds Distributor, Inc.


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