OPPENHEIMER DISCOVERY FUND
N-30D, 2000-12-07
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<PAGE>   1
                                     [PHOTO]
                                                ANNUAL REPORT SEPTEMBER 30, 2000

Oppenheimer
DISCOVERY FUND

                                                   [OPPENHEIMERFUNDS LOGO]
                                                   THE RIGHT WAY TO INVEST
<PAGE>   2

REPORT HIGHLIGHTS
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
           Contents

<S>        <C>
        1  President's Letter

        3  An Interview
           with Your Fund's
           Manager

        7  Fund Performance

       11  FINANCIAL
           STATEMENTS

       34  INDEPENDENT
           AUDITORS' REPORT

       35  Federal
           Income Tax
           Information

       36  Officers and Trustees
</TABLE>

Our investment strategy enabled us to discover SUPERIOR OPPORTUNITIES IN A WIDE
RANGE OF SECTORS IN ADDITION TO TECHNOLOGY.

TECHNOLOGY, THE FUND'S LARGEST INVESTMENT SECTOR, chalked up large gains during
the first half of the period, but many tech stocks gave up some of their earlier
gains after mid-March 2000. HEALTHCARE AND ENERGY STOCKS provided strong returns
throughout the period.

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------
AVERAGE ANNUAL
TOTAL RETURNS*

For the 1-Year Period
Ended 9/30/00

Class A
Without    With
Sales Chg. Sales Chg.
--------------------------------------------------------------------------------
<S>        <C>
62.15%     52.83%

Class B
Without    With
Sales Chg. Sales Chg.
--------------------------------------------------------------------------------
60.95%     55.95%

Class C
Without    With
Sales Chg. Sales Chg.
--------------------------------------------------------------------------------
60.95%     59.95%

Class Y
--------------------------------------------------------------------------------
62.68%
--------------------------------------------------------------------------------
</TABLE>
                   *SEE NOTES ON PAGE 10 FOR FURTHER DETAILS

<PAGE>   3


PRESIDENT'S LETTER
--------------------------------------------------------------------------------

[PHOTO]
BRIDGET A. MACASKILL
PRESIDENT
OPPENHEIMER
DISCOVERY FUND


Dear Shareholder,

   Over the past several decades, our investment teams have learned the
   importance of avoiding complacency when it comes to navigating the financial
   markets--especially when times are good. Right now, times appear particularly
   good. The U.S. economy is in its tenth year of expansion. In the bond market,
   U.S. Treasury issues have been performing favorably over the past year. In
   addition, despite volatility in the second quarter, the stock market has been
   providing attractive returns from a wide spectrum of industry sectors,
   capitalization ranges and investment styles.

        We have arrived at this juncture after months of monitoring the rapid
   pace of global economic growth and its implications for inflation, as well as
   the Federal Reserve Board's evolving monetary policy. At this point, economic
   indicators suggest a dampening of short-term inflationary pressures. While
   recent increases in oil prices are certainly taking their toll, we don't
   believe this signals a return to 1970's-style inflation. Accordingly, if the
   Fed continues in its diligence, the economy could maintain its healthy rate
   of growth.

        In the bond market, the achievement of a federal budget surplus has
   prompted the Treasury to buy back many of its long-term securities. The
   resulting supply shortage boosted these securities' returns, causing an
   inversion of the yield curve-- an unusual situation in which shorter term
   Treasuries yield more than their longer term counterparts. Other bond sectors
   are offering many opportunities in the form of attractive valuations.

        Perhaps most important is that we have begun to see encouraging signs in
   the stock market. Formerly high-flying Internet stocks have generally come
   down to earth, and investors have begun to refocus on companies with
   strong business fundamentals and justifiable valuations. Investors have
   also returned to long-neglected, value-oriented companies.



                          1 OPPENHEIMER DISCOVERY FUND


<PAGE>   4
PRESIDENT'S LETTER
--------------------------------------------------------------------------------

        What else do these various trends tell us? They tell us that the ability
   to discriminate between long-term potential and short-lived fads has become
   more critical than ever. Trying to generate good long-term performance
   requires tracking the best companies through intensive research, combined
   with hard-earned experience.

        At OppenheimerFunds, our seasoned portfolio management teams fight
   complacency by remaining constantly aware of the risks that face the economy
   and financial markets. Virtually anything could affect the overall markets--a
   surge in inflation, a decline in productivity, deteriorating corporate
   earnings, or even the new Administration's proposals regarding tax reform,
   healthcare and Social Security. However, by remaining vigilant in our quest
   for fundamentally sound businesses, we believe we can find good investments
   that can weather market volatility.

        In this environment, we encourage you to consult your financial advisor
   and to stay on track with your long-term financial plan. For our part, we
   will continue to monitor the opportunities and risks ever present in the
   financial markets. Thank you for your confidence in OppenheimerFunds, The
   Right Way to Invest.

   Sincerely,

   /s/BRIDGET A. MACASKILL

   Bridget A. Macaskill
   October 20, 2000



   THESE GENERAL MARKET VIEWS REPRESENT OPINIONS OF OPPENHEIMERFUNDS, INC.
   AND ARE NOT INTENDED TO PREDICT OR DEPICT PERFORMANCE OF THE SECURITIES
   MARKETS OR ANY PARTICULAR FUND. SPECIFIC DISCUSSION, AS IT APPLIES TO
   YOUR FUND, IS CONTAINED IN THE PAGES THAT FOLLOW. STOCKS AND BONDS HAVE
   DIFFERENT TYPES OF INVESTMENT RISKS; STOCKS ARE SUBJECT TO MARKET
   VOLATILITY AND BONDS ARE SUBJECT TO CREDIT AND INTEREST RATE RISKS.



                          2 OPPENHEIMER DISCOVERY FUND

<PAGE>   5

AN INTERVIEW WITH YOUR FUND'S MANAGER
--------------------------------------------------------------------------------

[PHOTO]
PORTFOLIO MANAGEMENT
TEAM(L TO R)
STEPHEN ROSEMAN
IAN HOROWITZ
JAYNE STEVLINGSON
(PORTFOLIO MANAGER)
TOLOMY ERPF



   HOW WOULD YOU CHARACTERIZE THE FUND'S PERFORMANCE DURING THE FISCAL YEAR
   THAT ENDED SEPTEMBER 30, 2000?

   A. We are pleased with the Fund's strong performance. Despite an
   exceptionally volatile period for equity markets, our disciplined focus on
   small-cap growth stocks enabled us to deliver a strongly positive total
   return to investors. The Fund's Class A shares generated a 62.15% average
   annual total return, without sales charge, for the period that ended
   September 30, 2000, outperforming benchmarks for the same one-year period.
   The Russell 2000 Index produced a 23.39% return, and the S&P 500 Index
   produced a 13.28% return.(1)

        We attribute these returns to our success in investing in several of the
   market's best performing stocks during the first half of the period, when
   market strength was at its height. Although many of our holdings suffered
   sharp declines later in the period, those declines remained smaller, on
   average, than our earlier gains.

   WHAT MADE THIS SUCH A VOLATILE PERIOD?

   Throughout the period, investors struggled to weigh the positive impact of
   encouraging economic data against the negative impact of rising interest
   rates. In late 1999 and early 2000, equity markets were driven higher by
   continued strength in the U.S. economy, low rates of inflation, growing
   evidence of global economic recovery and diminishing fears of Y2K-related
   problems.


   1. The Russell 2000 Index is a capitalization-weighted index of 2,000 U.S.
   issuers whose common stocks are traded on the New York and American Stock
   Exchanges and Nasdaq, and is widely recognized as a measure of the
   performance of "mid-capitalization" stocks. The S&P 500 Index is a
   broad-based index of equity securities widely regarded as a general measure
   of the performance of the U.S. equity securities market. The Fund's returns
   at 9/30/00 include results for periods of exceptional market performance that
   are not typical of historical results. You should not expect those growth
   rates to continue.


                          3 OPPENHEIMER DISCOVERY FUND
<PAGE>   6
AN INTERVIEW WITH YOUR FUND'S MANAGER
--------------------------------------------------------------------------------

   "Technology represented the Fund's largest investment sector and contributed
   significantly to our positive performance"


   On the other hand, interest rate hikes by the Federal Reserve Board ("the
   Fed") threatened corporate profitability and heightened concerns about the
   potential for rising inflation.

         As the Fed continued to raise interest rates in 2000, many segments of
   the market sagged. Yet, despite interest rate concerns, investors remained
   willing to pay increasingly rising prices for the high-growth potential of
   many technology-related stocks. Market strength became concentrated in
   technology stocks, driving the valuations of these companies to very high
   levels by March 2000.

         In March 2000, interest rate concerns finally took their toll on
   technology stocks, causing many of the highest flying stocks in the
   sector to fall rapidly. Investors showed renewed concern about company
   fundamentals and profitability, shifting the focus of market strength from
   growth-to value-oriented stocks in April and May. From June through
   September, however, better-than-expected corporate earnings reports--along
   with preliminary signs that U.S. economic growth might be slowing in response
   to the Fed's measures--bolstered investor confidence and gave new impetus to
   the broad markets. A number of sectors participated in this rally, including
   technology, energy and healthcare.

   HOW DID YOU MANAGE THE FUND IN LIGHT OF THESE CONDITIONS?

   The investment environment over the past year illustrates the tremendous
   volatility that can affect the small-cap market, particularly in the
   technology sector. We saw many stocks more than double in value during the
   first half of the period, only to fall by 50% or more after mid-March 2000.
   Our goal, as always, was to maximize the Fund's performance over the long
   term while carefully managing risk through a disciplined investment strategy.
   Accordingly, we thoroughly evaluated each company that met our basic
   investment criteria, looking for those issuers with superior fundamentals, a
   strong competitive position and the proven ability to carry out their
   business plans.



                          4 OPPENHEIMER DISCOVERY FUND

<PAGE>   7

<TABLE>
<CAPTION>

------------------------------------------------
AVERAGE ANNUAL
TOTAL RETURNS
For the Periods Ended 9/30/00(2)
<S>         <C>       <C>
Class A
1-Year      5-Year    10-Year
------------------------------------------------
52.83%      13.51%    18.42%

Class B               Since
1-Year      5-Year    Inception
------------------------------------------------
55.95%      13.75%    14.84%

Class C               Since
1-Year      5-Year    Inception
------------------------------------------------
59.95%      N/A       14.24%

Class Y               Since
1-Year      5-Year    Inception
------------------------------------------------
62.68%      15.20%    16.89%
------------------------------------------------
</TABLE>


       We found such companies in many sectors of the economy during the
   reporting period. Technology represented the Fund's largest investment sector
   and contributed significantly to our positive performance, especially from
   September 1999 through early March 2000. Within technology, we focused on
   both software and hardware companies at the forefront of emerging industries.
   On the software side, our best performers included several well-established
   companies, such as Documentum, Inc., Sybase, Inc., and Manugistics Group,
   Inc., that are successfully implementing Internet strategies. Among hardware
   companies, we emphasized telecommunications and consumer-related
   manufacturers, including fiber optic component suppliers and makers of
   semi-conductor chips for consumer electronics.

       Our investment strategy also enabled us to discover superior
   opportunities in a wide range of other sectors. Healthcare, our
   second-largest investment sector, provided strong returns throughout the
   period. We scored successes with a wide range of healthcare-related stocks,
   including managed care providers such as Trigon Healthcare, Inc., diagnostic
   laboratories, and biotechnology firms in advanced stages of the drug-approval
   process, such as Protein Design Labs, Inc. and CV Therapeutics, Inc. In
   addition, we took advantage of rising energy prices and declining gas
   reserves with investments in several drilling, pipeline and energy service
   companies.

   WHAT IS YOUR OUTLOOK FOR THE FUND AND THE SMALL-CAP MARKET OVER THE COMING
   MONTHS?

   While the U.S. economy remains strong, the rate of U.S. economic growth has
   moderated in recent months. As a result, the Federal Reserve Board avoided
   raising interest rates at its June 2000 meeting for the first time in several
   months. Equity markets have generally responded positively to these
   developments. Although small-cap growth stocks have been slower to recover



                    2.See notes on page 10 for further details.

                          5 OPPENHEIMER DISCOVERY FUND

<PAGE>   8
AN INTERVIEW WITH YOUR FUND'S MANAGER
--------------------------------------------------------------------------------


SECTOR ALLOCATION(3)

[PIECHART]

<TABLE>
<S>                    <C>
 -Technology
    Computer
    Software            14.7%
    Electronics         10.7
    Computer
    Hardware             6.2
    Computer
    Services             5.0
    Communications
    Equipment            2.9
 -Healthcare            21.1
 -Capital Goods          9.6
 -Consumer
  Cyclicals              9.1
 -Energy                 8.9
 -Financial              4.6
 -Consumer
  Staples                4.4
 -Communication
  Services               1.7
 -Utilities              1.1
</TABLE>

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

   from their 2000 lows than their large- and mid-cap counterparts, we believe
   that an environment of continued, moderate economic growth bodes well for
   this sector.

       Fundamentally, we continue to believe that small-cap stocks offer
   outstanding investment opportunities over the long term. The accelerating
   pace of change in the commercial arena--evident in the growth of the
   Internet, the expansion of global telecommunications services and
   developments in biotechnology--is creating vast new opportunities for small
   companies to grow rapidly into large ones. That's why we remain dedicated to
   our strategy of disciplined small company investing, and why we believe
   Oppenheimer Discovery Fund remains part of The Right Way to Invest.



<TABLE>
<CAPTION>
TOP TEN COMMON STOCK HOLDINGS(4)
 ..................................................
<S>                                           <C>
Documentum, Inc.                              2.1%
 ..................................................
Veeco Instruments, Inc.                       1.4
 ..................................................
Protein Design Labs, Inc.                     1.4
 ..................................................
Cirrus Logic, Inc.                            1.3
 ..................................................
HNC Software, Inc.                            1.2
 ..................................................
Benchmark Electronics, Inc.                   1.1
 ..................................................
Sybase, Inc.                                  1.1
 ..................................................
CV Therapeutics, Inc.                         1.1
 ..................................................
Manugistics Group, Inc.                       1.1
 ..................................................
Investors Financial Services Corp.            1.0
 ..................................................
</TABLE>


<TABLE>
<CAPTION>

TOP FIVE COMMON STOCK INDUSTRIES(4)
 ..................................................
<S>                                          <C>
Healthcare/Drugs                             17.5%
 ..................................................
Computer Software                            13.3
 ..................................................
Electronics                                   9.7
 ..................................................
Manufacturing                                 5.7
 ..................................................
Computer Hardware                             5.6
 ..................................................
</TABLE>

3. Portfolio is subject to change. Percentages are as of September 30, 2000, and
   are based on total market value of common stock investments.

4. Portfolio is subject to change. Percentages are as of September 30, 2000, and
   are based on net assets.


                          6 OPPENHEIMER DISCOVERY FUND
<PAGE>   9

   FUND PERFORMANCE
--------------------------------------------------------------------------------

   HOW HAS THE FUND PERFORMED? Below is a discussion by OppenheimerFunds, Inc.
   of the Fund's performance during its fiscal year ended September 30, 2000,
   followed by a graphical comparison of the Fund's performance to an
   appropriate broad-based market index and a sector index.

   MANAGEMENT'S DISCUSSION OF PERFORMANCE. During the fiscal year that ended
   September 30, 2000, the U.S. economy enjoyed robust growth, but rising
   interest rates undercut the performance of equity markets. As a result, the
   Fund's stocks experienced an exceptionally volatile 12-month period. Many of
   the Fund's technology stocks rose sharply from September 1999 to early March
   2000. In late March and April, technology stocks were hurt by rising interest
   rates, and gave up a portion of their earlier gains. However, healthcare and
   energy stocks delivered strong returns throughout the period, helping to
   balance losses in the technology sector. The Fund's portfolio holdings,
   allocations and strategies are subject to change.

   COMPARING THE FUND'S PERFORMANCE TO THE MARKET. The graphs that follow show
   the performance of a hypothetical $10,000 investment in Class A, Class B,
   Class C and Class Y shares of the Fund held until September 30, 2000. In the
   case of Class A shares, performance is measured for a ten-year period. In the
   case of Class B shares, performance is measured from the inception of the
   class on April 4, 1994. In the case of Class C shares, performance is
   measured from the inception of the class on October 2, 1995 and in the case
   of Class Y shares, from the inception of the class on June 1, 1994. The
   Fund's performance reflects the deduction of the maximum initial sales charge
   on Class A shares, the applicable contingent deferred sales charge on Class B
   and Class C shares, and reinvestments of all dividends and capital gains
   distributions.

      The Fund's performance is compared to the performance of the Standard &
   Poor's (S&P) 500 Index and the Russell 2000 Index. The S&P 500 Index is a
   broad-based index of equity securities widely regarded as a general measure
   of the performance of the U.S. equity securities market. The Russell 2000
   Index is a capitalization-weighted index of 2,000 U.S. issuers whose common
   stocks are traded on the New York and American Stock Exchanges and Nasdaq,
   and is widely recognized as a measure of the performance of
   mid-capitalization stocks.

      Index performance reflects the reinvestment of dividends but does not
   consider the effect of capital gains or transaction costs, and none of the
   data in the graphs that follow shows the effect of taxes. The Fund's
   performance reflects the effects of Fund business and operating expenses.
   While index comparisons may be useful to provide a benchmark for the Fund's
   performance, it must be noted that the Fund's investments are not limited to
   the securities in the indices shown.

                          7 OPPENHEIMER DISCOVERY FUND


<PAGE>   10
FUND PERFORMANCE
--------------------------------------------------------------------------------


CLASS A SHARES
COMPARISON OF CHANGE IN VALUE OF $10,000 HYPOTHETICAL INVESTMENTS IN:

--Oppenheimer Discovery Fund (Class A)
-- S&P 500 Index               *** Russell 2000 Index

[The following table was originally a line graph in the printed materials.]

<TABLE>
<CAPTION>
Date            Oppenheimer     S&P 500 Index   Russell 2000 Index
<S>             <C>             <C>             <C>
09/30/90         9425             10000          10000
12/31/91         9860             10895          10506
03/31/91        12417             12475          13630
06/30/91        12159             12445          13414
09/30/91        14315             13109          14512
12/31/91        16990             14207          15311
03/31/92        17077             13849          16493
06/30/92        15133             14112          15364
09/30/92        15992             14557          15807
12/31/92        19816             15288          18169
03/31/93        19384             15955          18945
06/30/93        20277             16032          19361
09/03/93        23011             16445          21054
12/31/93        23352             16826          21599
03/31/94        21511             16189          21024
06/30/94        19387             16256          20201
09/30/94        21192             17050          21605
12/31/94        20741             17074          21205
03/31/95        21987             18705          22184
06/30/95        23519             20488          24264
09/30/95        27130             22115          26660
12/31/95        28371             23445          27238
03/31/96        30206             24703          28628
06/30/96        33835             25810          30060
09/30/96        34661             26608          30162
12/31/96        32568             28824          31731
03/31/97        28332             29599          30090
06/30/97        33578             34761          34968
09/30/97        37835             37365          40173
12/31/97        35941             38438          38827
03/31/98        39953             43795          42732
06/30/98        38138             45249          40740
09/30/98        29972             40759          32533
12/31/98        35223             49430          37838
03/31/99        31396             51892          35786
06/30/99        34349             55543          41351
09/30/99        33445             52084          38737
12/31/99        53297             59827          45881
03/31/00        61289             61197          49131
06/30/00        53370             59572          47274
09/30/00        54231             58994          47797
</TABLE>

AVERAGE ANNUAL TOTAL RETURN OF CLASS A SHARES OF THE fUNDS AT 9/30/00(1)
1-YEAR 52.83%   5-YEAR 13.51%       10-YEAR 18.42%




CLASS B SHARES
COMPARISON OF CHANGE IN VALUE OF $10,000 HYPOTHETICAL INVESTMENTS IN:

--Oppenheimer Discovery Fund (Class B)
-- S&P 500 Index               *** Russell 2000 Index

[The following table was originally a line graph in the printed materials.]

<TABLE>
<CAPTION>
Date            Oppenheimer     S&P 500 Index   Russell 2000 Index
<S>             <C>             <C>             <C>
04/04/94        10000           10000           10000
06/30/94         9167           10042            9606
09/30/94        10000           10532           10276
12/31/94         9772           10530           10086
03/31/95        10335           11554           10552
06/30/95        11036           12656           11541
09/30/95        12704           13661           12681
12/31/95        13257           14482           12956
03/31/96        14090           15259           13617
06/30/96        15751           15943           14298
09/30/96        16105           16436           14347
12/31/96        15101           17805           15093
03/31/97        13118           18284           14313
06/30/97        15515           21473           16633
09/30/97        17446           23081           19108
12/31/97        16542           23743           18468
03/31/98        18355           27053           20326
06/30/98        17488           27951           19378
09/30/98        13719           25177           15474
12/31/98        16090           30534           17998
03/31/99        14313           32054           17022
06/30/99        15633           34310           19669
09/30/99        15190           32173           18425
12/31/99        24162           36956           21823
03/30/00        27737           37802           23369
06/30/00        24151           36798           22468
09/30/00        24541           36442           22734
</TABLE>

AVERAGE ANNUAL TOTAL RETURN OF CLASS B SHARES OF THE FUNDS AT 9/30/00(1)
1-YEAR 55.95%   5-YEAR 13.75%       LIFE 14.84%

1. See page 10 for further details

                          8 OPPENHEIMER DISCOVERY FUND

<PAGE>   11
CLASS C SHARES
COMPARISON OF CHANGE IN VALUE OF $10,000 HYPOTHETICAL INVESTMENTS IN:
--    Oppenheimer Discovery Fund (Class C)
--    S&P 500 Index                  ***Russell 2000 Index

[The following table was originally a line graph in the printed materials.]

<TABLE>
<CAPTION>
Date            Oppenheimer     S&P 500 Index   Russell 2000 Index
<S>             <C>             <C>             <C>
10/02/95        10000            10000           10000
12/31/95        10536            10602           10217
03/31/96        11194            11170           10738
06/30/96        12516            11671           11275
09/30/96        12796            12032           11313
12/31/96        11998            13034           11902
03/31/97        10422            13384           11287
06/30/97        12328            15719           13116
09/30/97        13869            16896           15068
12/31/97        13152            17381           14564
03/31/98        14595            19804           16029
06/30/98        13904            20461           15281
09/30/98        10909            18431           12203
12/31/98        12792            22352           14193
03/31/99        11383            23465           13423
06/30/99        12431            25116           15510
09/30/99        12079            23552           14530
12/31/99        19210            27053           17210
03/31/00        22053            27673           18429
06/30/00        19170            26938           17732
09/30/00        19440            26677           17928
</TABLE>

AVERAGE ANNUAL TOTAL RETURN OF CLASS C SHARES OF THE FUNDS AT 9/30/00(1)
1-YEAR 59.95%     LIFE 14.24%


CLASS Y SHARES
COMPARISON OF CHANGE IN VALUE OF $10,000 HYPOTHETICAL INVESTMENTS IN:

--Oppenheimer Discovery Fund (Class Y)
-- S&P 500 Index               *** Russell 2000 Index

[The following table was originally a line graph in the printed materials.]

<TABLE>
<CAPTION>
Date            Oppenheimer     S&P 500 Index   Russell 2000 Index
<S>             <C>             <C>             <C>
06/01/94         10000           10000           10000
06/30/94          9438            9755            9660
12/31/94         10115           10230           10141
03/31/95         10726           11224           10609
06/30/95         11483           12294           11609
09/30/95         13238           13271           12749
12/31/95         13855           14069           13026
03/31/96         14761           14824           13690
06/30/96         16545           15489           14375
09/30/96         16957           15967           14424
12/31/96         15944           17297           15174
03/31/97         13883           17762           14390
06/30/97         16464           20860           16722
09/30/97         18568           22422           19211
12/31/97         17657           23066           18568
03/31/98         19649           26281           20435
06/30/98         18769           27154           19482
09/30/98         14767           24459           15558
12/31/98         17351           29663           18095
03/31/99         15475           31140           17113
06/30/99         16937           33331           19775
09/30/99         16513           31255           18524
12/31/99         26324           35902           21941
03/31/00         30291           36724           23495
06/30/00         26411           35748           22607
09/30/00         26861           35402           22857
</TABLE>

AVERAGE ANNUAL TOTAL RETURN OF CLASS B SHARES OF THE FUNDS AT 9/30/00(1)
1-YEAR 62.68%   5-YEAR 15.20%       LIFE 16.89%

THE PERFORMANCE INFORMATION FOR BOTH INDICES IN THE GRAPHS BEGINS ON 9/30/90 FOR
CLASS A, 3/31/94 FOR CLASS B, 9/30/95 FOR CLASS C AND 5/31/94 FOR CLASS Y.

PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE PERFORMANCE. GRAPHS ARE NOT DRAWN
TO THE SAME SCALE.



                          9 OPPENHEIMER DISCOVERY FUND
<PAGE>   12


NOTES
--------------------------------------------------------------------------------

IN REVIEWING PERFORMANCE AND RANKINGS, PLEASE REMEMBER THAT PAST PERFORMANCE
DOES NOT GUARANTEE FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE OF AN
INVESTMENT IN THE FUND WILL FLUCTUATE SO THAT AN INVESTOR'S SHARES, WHEN
REDEEMED, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST. THE FUND'S RETURNS
AT 9/30/00 INCLUDE RESULTS FOR PERIODS OF EXCEPTIONAL MARKET PERFORMANCE THAT
ARE NOT TYPICAL OF HISTORICAL RESULTS. YOU SHOULD NOT EXPECT THOSE GROWTH RATES
TO CONTINUE. BECAUSE OF ONGOING MARKET VOLATILITY, THE FUND'S PERFORMANCE HAS
BEEN SUBJECT TO SUBSTANTIAL SHORT-TERM FLUCTUATIONS AND CURRENT PERFORMANCE MAY
BE LESS THAN THE RESULTS SHOWN. FOR QUARTERLY UPDATES ON THE FUND'S
PERFORMANCE, PLEASE CONTACT YOUR FINANCIAL ADVISOR, CALL US AT 1.800.525.7048
OR VISIT OUR WEBSITE AT WWW.OPPENHEIMERFUNDS.COM.

Total returns and the ending account values in the graphs include changes in
share price and reinvestment of dividends and capital gains distributions in a
hypothetical investment for the periods shown. The Fund's total returns shown
do not show the effects of income taxes on an individual's investment. Taxes
may reduce your actual investment returns on income or gains paid by the Fund
or any gains you may realize if you sell your shares.

CLASS A shares were first publicly offered on 9/11/86. Unless otherwise noted,
Class A returns include the current maximum initial sales charge of 5.75%. The
Fund's maximum sales charge for Class A shares was lower prior to 4/4/91, so
actual performance may have been higher.

CLASS B shares of the Fund were first publicly offered on 4/4/94. Unless
otherwise noted, Class B returns include the applicable contingent deferred
sales charge of 5% (1-year) and 2% (5-year). Because Class B shares convert to
Class A shares 72 months after purchase, the "life of class" return for Class B
uses Class A performance for the period after conversion. Class B shares are
subject to an annual 0.75% asset-based sales charge.

CLASS C shares of the Fund were first publicly offered on 10/2/95. Unless
otherwise noted, Class C returns include the contingent deferred sales charge of
1% for the 1-year period. Class C shares are subject to an annual 0.75%
asset-based sales charge.

CLASS Y shares of the Fund were first publicly offered on 6/1/94. Class Y shares
are offered only to certain institutional investors under special agreement with
the Distributor.

An explanation of the calculation of performance is in the Fund's Statement of
Additional Information.

                         10 OPPENHEIMER DISCOVERY FUND

<PAGE>   13

STATEMENT OF INVESTMENTS  SEPTEMBER 30, 2000

-------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                            MARKET VALUE
                                                               SHARES         SEE NOTE 1
-------------------------------------------------------------------------------------------
 COMMON STOCKS--90.5%
-------------------------------------------------------------------------------------------
 CAPITAL GOODS--8.7%
-------------------------------------------------------------------------------------------
<S>                                                         <C>            <C>
 AEROSPACE/DEFENSE--0.5%
 Hexcel Corp.(1)                                               345,000      $  4,614,375
-------------------------------------------------------------------------------------------
 Teledyne Technologies, Inc.(1)                                141,500         4,121,187
                                                                            ---------------
                                                                               8,735,562

-------------------------------------------------------------------------------------------
 ELECTRICAL EQUIPMENT--1.1%
 Benchmark Electronics, Inc.(1)                               400,000         20,800,000
-------------------------------------------------------------------------------------------

 INDUSTRIAL SERVICES--1.4%
 Forrester Research, Inc.(1)                                  100,000          6,375,000
-------------------------------------------------------------------------------------------
 Iron Mountain, Inc.                                          380,000         14,060,000
-------------------------------------------------------------------------------------------
 Tetra Tech,Inc.(1)                                           200,000          5,712,500
                                                                            ---------------
                                                                              26,147,500

-------------------------------------------------------------------------------------------
 MANUFACTURING--5.7%
 ATMI, Inc.(1)                                                235,000          5,493,125
-------------------------------------------------------------------------------------------
 Coherent, Inc.(1)                                            240,000         16,320,000
-------------------------------------------------------------------------------------------
 FSI International, Inc.(1)                                   445,500          6,348,375
-------------------------------------------------------------------------------------------
 Photon Dynamics, Inc.(1)                                      95,200          3,593,800
-------------------------------------------------------------------------------------------
 Plexus Corp.(1)                                               80,000          5,640,000
-------------------------------------------------------------------------------------------
 PRI Automation, Inc.(1)                                      369,700          6,747,025
-------------------------------------------------------------------------------------------
 RadiSys Corp.(1)                                              88,900          4,495,006
-------------------------------------------------------------------------------------------
 Rudolph Technologies, Inc.(1)                                129,600          4,333,500
-------------------------------------------------------------------------------------------
 Three-Five Systems, Inc.(1)                                  350,000         10,237,500
-------------------------------------------------------------------------------------------
 Veeco Instruments, Inc.(1)                                   250,000         26,566,406
-------------------------------------------------------------------------------------------
 Zygo Corp.(1)                                                192,800         16,773,600
                                                                             --------------
                                                                             106,548,337

-------------------------------------------------------------------------------------------
 COMMUNICATION SERVICES--1.5%
-------------------------------------------------------------------------------------------
 TELECOMMUNICATIONS-LONG DISTANCE--0.4%
 Cosine Communications, Inc.(1)                                20,400          1,133,475
-------------------------------------------------------------------------------------------
 Lexent, Inc.(1)                                              105,000          3,123,750
-------------------------------------------------------------------------------------------
 Powertel, Inc.(1)                                             35,000          2,662,187
                                                                              -------------
                                                                               6,919,412

-------------------------------------------------------------------------------------------
 TELEPHONE UTILITIES--0.2%
 Choice One Communications, Inc.(1)                           340,400          4,148,625
-------------------------------------------------------------------------------------------
 TELECOMMUNICATIONS-WIRELESS--0.9%
 Leap Wireless International, Inc.(1)                         115,000          7,194,687
-------------------------------------------------------------------------------------------
 Metricom, Inc.(1)                                            150,000          3,862,500
-------------------------------------------------------------------------------------------
 Pinnacle Holdings, Inc.(1)                                   103,000          2,742,375
-------------------------------------------------------------------------------------------
 Proxim, Inc.(1)                                               81,100          3,608,950
                                                                              -------------
                                                                              17,408,512
</TABLE>

                          11 OPPENHEIMER DISCOVERY FUND
<PAGE>   14
STATEMENT OF INVESTMENTS  Continued

-------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                            MARKET VALUE
                                                               SHARES         SEE NOTE 1
-------------------------------------------------------------------------------------------
 CONSUMER CYCLICALS--8.3%
-------------------------------------------------------------------------------------------
 CONSUMER SERVICES--0.9%
-------------------------------------------------------------------------------------------
<S>                                                        <C>              <C>
 Getty Images, Inc.(1)                                         305,000       $ 9,283,437
-------------------------------------------------------------------------------------------
 Heidrick & Struggles International, Inc.(1)                    65,000         3,339,375
-------------------------------------------------------------------------------------------
 Macrovision Corp.(1)                                           60,000         4,860,000
                                                                              -------------
                                                                              17,482,812

-------------------------------------------------------------------------------------------
 LEISURE & ENTERTAINMENT--1.6%
 Anchor Gaming(1)                                              201,800        16,055,712
-------------------------------------------------------------------------------------------
 Orient-Express Hotel Ltd.(1)                                  225,000         4,331,250
-------------------------------------------------------------------------------------------
 Station Casinos, Inc.(1)                                      710,900        10,130,325
                                                                              -------------
                                                                              30,517,287

-------------------------------------------------------------------------------------------
 MEDIA--1.0%
 ACNielsen Corp.(1)                                            200,100         4,764,881
-------------------------------------------------------------------------------------------
 Penton Media, Inc.                                            235,000         6,462,500
-------------------------------------------------------------------------------------------
 True North Communications, Inc.                               200,000          7,150,00
                                                                              -------------
                                                                              18,377,381

-------------------------------------------------------------------------------------------
 RETAIL: SPECIALTY--3.1%
 Factory 2-U Stores, Inc.(1)                                   220,000         6,723,750
-------------------------------------------------------------------------------------------
 Footstar, Inc.(1)                                             150,000         4,846,875
-------------------------------------------------------------------------------------------
 Hot Topic, Inc.(1)                                            280,000         8,400,000
-------------------------------------------------------------------------------------------
 Skechers U.S.A., Inc., Cl. A(1)                               251,000         3,796,375
-------------------------------------------------------------------------------------------
 Tech Data Corp.(1)                                            320,000        13,680,000
-------------------------------------------------------------------------------------------
 Tweeter Home Entertainment Group, Inc.(1)                     110,000         3,994,375
-------------------------------------------------------------------------------------------
 Venator Group, Inc.(1)                                        600,000         7,425,000
-------------------------------------------------------------------------------------------
 Yankee Candle, Inc. (The)(1)                                  391,000         7,868,875
                                                                              -------------
                                                                              56,735,250

--------------------------------------------------------------------------------------------
 TEXTILE/APPAREL & HOME FURNISHINGS--1.7%
 Abercrombie & Fitch Co., Cl. A(1)                             614,400        11,712,000
-------------------------------------------------------------------------------------------
 Kenneth Cole Productions, Inc., Cl. A(1)                      138,200         4,880,187
-------------------------------------------------------------------------------------------
 Liz Claiborne, Inc.                                           220,000         8,470,000
-------------------------------------------------------------------------------------------
 Too, Inc.(1)                                                  250,000         5,937,500
                                                                               ------------
                                                                              30,999,687

-------------------------------------------------------------------------------------------
 CONSUMER STAPLES--4.0%
-------------------------------------------------------------------------------------------
 Sirius Satellite Radio, Inc.(1)                              244,000         12,901,500
-------------------------------------------------------------------------------------------
 XM Satellite Radio Holdings, Inc.(1)                         280,700         12,087,644
                                                                            ---------------
                                                                              24,989,144
</TABLE>

                        12  OPPENHEIMER DISCOVERY FUND
<PAGE>   15
<TABLE>
<CAPTION>
                                                                            MARKET VALUE
                                                               SHARES         SEE NOTE 1
-------------------------------------------------------------------------------------------
<S>                                                         <C>             <C>
 EDUCATION--0.9%
 Career Education Corp.(1)                                   189,700        $ 8,441,650
-------------------------------------------------------------------------------------------
 Corinthian Colleges, Inc.(1)                                146,800          8,661,200
-------------------------------------------------------------------------------------------
                                                                             17,102,850

-------------------------------------------------------------------------------------------
 ENTERTAINMENT--0.5%
 California Pizza Kitchen, Inc.(1)                            39,100          1,094,800
-------------------------------------------------------------------------------------------
 P.F. Chang's China Bistro, Inc.(1)                          232,500          8,035,781
                                                                           ----------------
                                                                              9,130,581

 FOOD--0.5%
 Performance Food Group Co.(1)                               259,800          9,774,975
-------------------------------------------------------------------------------------------
 FOOD & DRUG RETAILERS--0.7%
 Pathmark Stores, Inc.(1)                                    414,600          5,104,762
-------------------------------------------------------------------------------------------
 Whole Foods Market, Inc.(1)                                 150,000          8,053,125
                                                                            ---------------
                                                                             13,157,887


-------------------------------------------------------------------------------------------
 ENERGY--8.1%
-------------------------------------------------------------------------------------------
 ENERGY SERVICES--3.8%
 Cross Timbers Oil Co.                                       798,900         15,328,894
-------------------------------------------------------------------------------------------
 Dril-Quip, Inc.(1)                                          219,100          8,736,612
-------------------------------------------------------------------------------------------
 Hanover Compressor Co.(1)                                   160,000          5,270,000
-------------------------------------------------------------------------------------------
 Marine Drilling Cos., Inc.(1)                               300,300          8,577,319
-------------------------------------------------------------------------------------------
 Parker Drilling Co.(1)                                      991,900          6,943,300
-------------------------------------------------------------------------------------------
 Pride International, Inc.(1)                                420,000         11,130,000
-------------------------------------------------------------------------------------------
 Proton Energy Systems, Inc.(1)                               13,100            374,987
-------------------------------------------------------------------------------------------
 Tidewater, Inc.                                             329,200         14,978,600
                                                                            ---------------
                                                                             71,339,712


-------------------------------------------------------------------------------------------
 OIL: DOMESTIC--3.3%
 Devon Energy Corp.                                          200,000         12,030,000
-------------------------------------------------------------------------------------------
 Forest Oil Corp.(1)                                         275,000          4,451,562
-------------------------------------------------------------------------------------------
 Frontier Oil Corp.(1)                                       450,000          3,318,750
-------------------------------------------------------------------------------------------
 Key Energy Services, Inc.(1)                                570,000          5,593,125
-------------------------------------------------------------------------------------------
 Louis Dreyfus Natural Gas Corp.(1)                          391,000         15,493,375
-------------------------------------------------------------------------------------------
 Noble Affiliates, Inc.                                      200,000          7,425,000
-------------------------------------------------------------------------------------------
 Stone Energy Corp.(1)                                       145,000          7,975,000
-------------------------------------------------------------------------------------------
 Vintage Petroleum, Inc.                                     200,000          4,550,000
                                                                            ---------------
                                                                             60,836,812

 ------------------------------------------------------------------------------------------
 OIL: INTERNATIONAL--1.0%
 Precision Drilling Corp.(1)                                 150,000          5,343,750
-------------------------------------------------------------------------------------------
 Rio Alto Exploration Ltd.(1)                                275,000          5,848,731
-------------------------------------------------------------------------------------------
 Talisman Energy, Inc.(1)                                    185,000          6,485,943
                                                                            ---------------
                                                                             17,678,424
</TABLE>

                         13  OPPENHEIMER DISCOVERY FUND


<PAGE>   16
STATEMENT OF INVESTMENTS  Continued

-------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                             MARKET VALUE
                                                               SHARES          SEE NOTE 1
-------------------------------------------------------------------------------------------
 FINANCIAL--4.2%
-------------------------------------------------------------------------------------------
<S>                                                      <C>               <C>
 BANKS--2.0%
 Commerce Bancorp, Inc.                                      149,200          $  8,681,575
 ------------------------------------------------------------------------------------------
 East West Bancorp, Inc.                                     197,500             3,863,594
 ------------------------------------------------------------------------------------------
 Investors Financial Services Corp.                          300,000            18,937,500
 ------------------------------------------------------------------------------------------
 Silicon Valley Bancshares(1)                                100,000             5,823,437
                                                                              ------------
                                                                                37,306,106


-------------------------------------------------------------------------------------------
 DIVERSIFIED FINANCIAL--1.9%
 AmeriCredit Corp.(1)                                        198,400             5,716,400
-------------------------------------------------------------------------------------------
 ChoicePoint, Inc.(1)                                        300,000            13,762,500
-------------------------------------------------------------------------------------------
 eSPEED, Inc., Cl. A(1)                                      247,600             7,041,125
-------------------------------------------------------------------------------------------
 LaBranche & Co., Inc.(1)                                    265,700             8,867,737
                                                                              -------------
                                                                                35,387,762

-------------------------------------------------------------------------------------------
 INSURANCE--0.3%
 Annuity & Life RE Holdings Ltd.                             120,000             2,895,000
-------------------------------------------------------------------------------------------

 London Pacific Group Ltd., Sponsored ADR                    150,000             2,981,250
                                                                                -----------
                                                                                 5,876,250


-------------------------------------------------------------------------------------------
 HEALTHCARE--19.0%
-------------------------------------------------------------------------------------------

 HEALTHCARE/DRUGS--17.5%
 3 Dimensional Pharmaceuticals, Inc.(1)                       56,800             2,044,800
-------------------------------------------------------------------------------------------

 Accredo Health, Inc.(1)                                     217,700            10,640,087
-------------------------------------------------------------------------------------------
 Alexion Pharmaceuticals, Inc.(1)                             67,500             7,695,000
-------------------------------------------------------------------------------------------
 Alpharma, Inc., Cl. A                                       140,000             8,557,500
-------------------------------------------------------------------------------------------
 AmeriSource Health Corp., Cl. A(1)                          263,000            12,361,000
-------------------------------------------------------------------------------------------
 Arena Pharmaceuticals, Inc.(1)                               82,300             3,538,900
-------------------------------------------------------------------------------------------
 Aviron(1)                                                   219,400            12,793,762
-------------------------------------------------------------------------------------------
 Barr Laboratories, Inc.(1)                                  100,000             6,631,250
-------------------------------------------------------------------------------------------
 Caremark Rx, Inc.(1)                                      1,680,200            18,902,250
-------------------------------------------------------------------------------------------
 Cell Genesys, Inc.(1)                                       330,000             9,900,000
-------------------------------------------------------------------------------------------
 Cell Therapeutics, Inc.(1)                                   23,400             1,560,487
-------------------------------------------------------------------------------------------
 Charles River Laboratories International, Inc.(1)           260,200             8,846,800
-------------------------------------------------------------------------------------------
 Ciphergen Biosystems, Inc.(1)                                80,700             2,582,400
-------------------------------------------------------------------------------------------
 Coventry Health Care, Inc.(1)                               298,300             4,511,787
-------------------------------------------------------------------------------------------
 Cubist Pharmaceuticals, Inc.(1)                              80,000             4,165,000
-------------------------------------------------------------------------------------------
 CuraGen Corp.(1)                                            328,500            17,502,891
-------------------------------------------------------------------------------------------
 CV Therapeutics, Inc.(1)                                    257,500            20,028,672
-------------------------------------------------------------------------------------------
 Dendrite International, Inc.(1)                             189,700             5,086,331
-------------------------------------------------------------------------------------------
 Dura Pharmaceuticals, Inc.(1)                               150,000             5,306,250
</TABLE>


                         14 OPPENHEIMER DISCOVERY FUND
<PAGE>   17
<TABLE>
<CAPTION>
                                                                              MARKET VALUE
                                                               SHARES           SEE NOTE 1
-------------------------------------------------------------------------------------------
<S>                                                       <C>               <C>
 HEALTHCARE/DRUGS Continued
 Dusa Pharmaceuticals, Inc.(1)                               285,000          $  8,781,563
-------------------------------------------------------------------------------------------

 Eden Bioscience Corp.(1)                                     69,400             2,290,200
-------------------------------------------------------------------------------------------
 Enzon, Inc.(1)                                              250,000            16,500,000
-------------------------------------------------------------------------------------------
 Illumina, Inc.(1)                                            20,800               943,800
-------------------------------------------------------------------------------------------
 Inhale Therapeutic Systems, Inc.(1)                         310,000            17,476,250
-------------------------------------------------------------------------------------------
 Inspire Pharmaceuticals, Inc.(1)                            113,600             3,408,000
-------------------------------------------------------------------------------------------
 Laboratory Corp. of America Holdings, Inc.(1)               135,000            16,166,250
-------------------------------------------------------------------------------------------
 Matrix Pharmaceutical, Inc.(1)                              287,000             4,466,438
-------------------------------------------------------------------------------------------
 Neose Technologies, Inc.(1)                                 150,000             7,256,250
-------------------------------------------------------------------------------------------
 Protein Design Labs, Inc.(1)                                210,000            25,305,000
-------------------------------------------------------------------------------------------
 Regeneron Pharmaceuticals, Inc.(1)                          150,000             4,893,750
-------------------------------------------------------------------------------------------
 RehabCare Group, Inc.(1)                                     85,000             3,612,500
-------------------------------------------------------------------------------------------
 Rosetta Inpharmatics, Inc.(1)                               119,700             3,338,508
-------------------------------------------------------------------------------------------
 SurModics, Inc.(1)                                          198,800            10,884,300
-------------------------------------------------------------------------------------------
 Syncor International Corp.(1)                               120,000             4,417,500
-------------------------------------------------------------------------------------------
 Trigon Healthcare, Inc.(1)                                  355,400            18,680,713
-------------------------------------------------------------------------------------------
 XOMA Ltd.(1)                                             1,1244,400            16,233,525
                                                                               ------------
                                                                               327,309,714


-------------------------------------------------------------------------------------------
 HEALTHCARE/SUPPLIES & SERVICES--1.5%
 PhotoMedex, Inc.(1)                                         200,000             2,575,000
-------------------------------------------------------------------------------------------
 PolyMedica Corp.(1)                                         140,000             6,002,500
-------------------------------------------------------------------------------------------
 Province Healthcare Co.(1)                                  337,500            13,478,906
-------------------------------------------------------------------------------------------
 Triad Hospitals, Inc.(1)                                    220,000             6,462,500
                                                                                -----------
                                                                                28,518,906

-------------------------------------------------------------------------------------------
 TECHNOLOGY--35.7%
-------------------------------------------------------------------------------------------
 COMPUTER HARDWARE--5.6%
 Artesyn Technologies, Inc.(1)                               331,600             9,657,850
-------------------------------------------------------------------------------------------

 Avid Technology, Inc.(1)                                  1,156,900            16,196,600
-------------------------------------------------------------------------------------------
 Cobalt Networks, Inc.(1)                                    200,000            11,575,000
-------------------------------------------------------------------------------------------
 Creo Products, Inc.(1)                                      100,000             3,400,000
-------------------------------------------------------------------------------------------
 Handspring, Inc.(1)                                         226,700            15,656,469
-------------------------------------------------------------------------------------------
 Mentor Graphics Corp.(1)                                    732,700            17,264,244
-------------------------------------------------------------------------------------------
 Pixelworks, Inc.(1)                                          97,900             4,668,606
-------------------------------------------------------------------------------------------
 Quantum Corp./DLT & Storage Systems Group(1)              1,002,100            15,094,131
-------------------------------------------------------------------------------------------
 Read-Rite Corp.(1)                                          732,500             8,240,625
-------------------------------------------------------------------------------------------
 Silicon Storage Technology, Inc.(1)                         100,000             2,718,750
                                                                               ------------
                                                                               104,472,275
</TABLE>


                          15 OPPENHEIMER DISCOVERY FUND

<PAGE>   18
STATEMENT OF INVESTMENTS  Continued

-------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                               MARKET VALUE
                                                               SHARES            SEE NOTE 1
-------------------------------------------------------------------------------------------
<S>                                                     <C>                 <C>
 COMPUTER SERVICES--4.5%
 Clarent Corp.(1)                                             120,000         $   4,725,000
-------------------------------------------------------------------------------------------
 Eclipsys Corp.(1)                                            199,600             3,193,600
-------------------------------------------------------------------------------------------
 Elastic Networks, Inc.(1)                                    112,100             1,562,394
-------------------------------------------------------------------------------------------
 HNC Software, Inc.(1)                                        274,700            22,473,894
-------------------------------------------------------------------------------------------
 OmniSky Corp.(1)                                             313,800             6,374,063
-------------------------------------------------------------------------------------------
 Packeteer, Inc.(1)                                           150,000             5,690,625
-------------------------------------------------------------------------------------------
 Shaw Communications, Inc., Cl. B                             337,950             7,749,086
-------------------------------------------------------------------------------------------
 SmartForce plc, Sponsored ADR(1)                             210,000             9,948,750
-------------------------------------------------------------------------------------------
 SynQuest, Inc.(1)                                            342,300             4,492,688
-------------------------------------------------------------------------------------------
 WebEx Communications, Inc.(1)                                268,200             9,889,875
-------------------------------------------------------------------------------------------
 WorldGate Communications, Inc.(1)                            408,400             8,576,400
                                                                            ---------------
                                                                                 84,676,375


-------------------------------------------------------------------------------------------
 COMPUTER SOFTWARE--13.3%
 Adept Technology, Inc.(1)                                     77,900             4,094,619
-------------------------------------------------------------------------------------------
 Advanced Digital Information Corp.(1)                        648,200             9,844,538
-------------------------------------------------------------------------------------------
 Advent Software, Inc.(1)                                      80,000             5,590,000
-------------------------------------------------------------------------------------------
 Aspen Technologies, Inc.(1)                                  151,200             6,822,900
-------------------------------------------------------------------------------------------
 Avant! Corp.(1)                                              300,000             5,475,000
-------------------------------------------------------------------------------------------
 Caminus Corp.(1)                                             449,900            17,883,525
-------------------------------------------------------------------------------------------
 Cognos, Inc.(1)                                              185,000             7,538,750
-------------------------------------------------------------------------------------------
 Concurrent Computer Corp.(1)                                 515,800             9,800,200
-------------------------------------------------------------------------------------------
 Corsair Communications, Inc.(1)                              400,000             3,125,000
-------------------------------------------------------------------------------------------
 Descartes Systems Group, Inc. (The)(1)                       152,400             7,543,800
-------------------------------------------------------------------------------------------
 Documentum, Inc.(1)                                          485,000            39,375,938
-------------------------------------------------------------------------------------------
 Genomica Corp.(1)                                            144,500             2,808,719
-------------------------------------------------------------------------------------------
 Informatica Corp.(1)                                         100,000             9,325,000
-------------------------------------------------------------------------------------------
 Interactive Intelligence, Inc.(1)                            100,000             3,931,250
-------------------------------------------------------------------------------------------
 Interwoven, Inc.(1)                                          130,000            14,698,125
-------------------------------------------------------------------------------------------
 Liberate Technologies, Inc.(1)                               372,200            10,770,538
-------------------------------------------------------------------------------------------
 Manugistics Group, Inc.(1)                                   200,000            19,625,000
-------------------------------------------------------------------------------------------
 NetIQ Corp.(1)                                               205,000            13,465,938
-------------------------------------------------------------------------------------------
 Peregrine Systems, Inc.(1)                                   316,400             5,991,825
-------------------------------------------------------------------------------------------
 Precise Software Solutions Ltd.(1)                             5,000               215,625
-------------------------------------------------------------------------------------------
 Quest Software, Inc.(1)                                      120,000             7,453,125
-------------------------------------------------------------------------------------------
 RSA Security, Inc.(1)                                        175,000             7,546,875
-------------------------------------------------------------------------------------------
 SignalSoft Corp.(1)                                           49,200             1,998,750
-------------------------------------------------------------------------------------------
 SonicWALL, Inc.(1)                                           278,000             7,923,000

</TABLE>

                         16 OPPENHEIMER DISCOVERY FUND
<PAGE>   19
<TABLE>
<CAPTION>
                                                                              MARKET VALUE
                                                            SHARES              SEE NOTE 1
-------------------------------------------------------------------------------------------
<S>                                                      <C>                <C>
 COMPUTER SOFTWARE Continued
 Sybase, Inc.(1)                                           900,000            $ 20,700,000
-------------------------------------------------------------------------------------------
 Verity, Inc.(1)                                           130,000               4,639,375
                                                                              -------------
                                                                               248,187,415

-------------------------------------------------------------------------------------------
 COMMUNICATIONS EQUIPMENT--2.6%
 Computer Network Technology Corp.(1)                      320,200              13,069,375
-------------------------------------------------------------------------------------------
 Plantronics, Inc.(1)                                      300,000              11,400,000
-------------------------------------------------------------------------------------------
 Polycom, Inc.(1)                                          200,000              13,393,750
-------------------------------------------------------------------------------------------
 Tut Systems, Inc.(1)                                      130,000              11,220,625
                                                                               ------------
                                                                                49,083,750


-------------------------------------------------------------------------------------------
 ELECTRONICS--9.7%
 ACT Manufacturing, Inc.(1)                                174,800               9,220,700
-------------------------------------------------------------------------------------------

 Alpha Industries, Inc.(1)                                 300,000              10,218,750
-------------------------------------------------------------------------------------------
 Cirrus Logic, Inc.(1)                                     597,400              24,082,688
-------------------------------------------------------------------------------------------
 DDi Corp./CA(1)                                            50,000               2,212,500
-------------------------------------------------------------------------------------------
 DSP Group(1)                                              200,000               7,475,000
-------------------------------------------------------------------------------------------
 Elantec Semiconductor, Inc.(1)                             74,400               7,412,100
-------------------------------------------------------------------------------------------
 Galileo Technology Ltd.(1)                                176,900               5,616,575
-------------------------------------------------------------------------------------------
 Intersil Holding Corp.(1)                                 190,900               9,521,138
-------------------------------------------------------------------------------------------
 Lattice Semiconductor Corp.(1)                            310,000              16,662,500
-------------------------------------------------------------------------------------------
 Merix Corp.(1)                                            170,000              11,018,125
-------------------------------------------------------------------------------------------
 Methode Electronics, Inc., Cl. A                          200,000               8,862,500
-------------------------------------------------------------------------------------------
 MIPS Technologies, Inc., Cl. A(1)                         125,000               5,750,000
-------------------------------------------------------------------------------------------
 MMC Networks, Inc.(1)                                      77,500               9,803,750
-------------------------------------------------------------------------------------------
 Oak Technology, Inc.(1)                                   510,000              13,961,250
-------------------------------------------------------------------------------------------
 Park Electrochemical Corp.                                 98,400               5,473,500
-------------------------------------------------------------------------------------------
 Semtech Corp.(1)                                          300,000              12,937,500
-------------------------------------------------------------------------------------------
 SMTC Corp.(1)                                              76,100               1,636,150
-------------------------------------------------------------------------------------------
 Supertex, Inc.(1)                                         121,200               6,105,450
-------------------------------------------------------------------------------------------
 TTM Technologies, Inc.(1)                                  74,400               1,748,400
-------------------------------------------------------------------------------------------
 Virata Corp.(1)                                           177,900              11,763,638
                                                                              -------------
                                                                               181,482,214


</TABLE>


                         17 OPPENHEIMER DISCOVERY FUND









<PAGE>   20
STATEMENT OF INVESTMENTS Continued



<TABLE>
<CAPTION>

                                                                                                  MARKET VALUE
                                                                                     SHARES         SEE NOTE 1
---------------------------------------------------------------------------------------------------------------
<S>                                                                            <C>             <C>
 UTILITIES--1.0%
---------------------------------------------------------------------------------------------------------------
 GAS UTILITIES--1.0%
 Equitable Resources, Inc.                                                          228,100     $   14,455,838
---------------------------------------------------------------------------------------------------------------
 Western Gas Resources, Inc.                                                        175,000          4,385,938
                                                                                               ----------------
                                                                                                    18,841,776
                                                                                               ----------------
 Total Common Stocks (Cost $1,349,953,336)                                                       1,689,973,293


===============================================================================================================
 PREFERRED STOCKS--1.1%
 Candescent Technologies Corp., $2.50 Cv., Series D(1),(2)                        1,200,000         11,136,000
---------------------------------------------------------------------------------------------------------------
 Candescent Technologies Corp., Sr. Exchangeable, Series E(1),(2)                   800,000          7,824,000
---------------------------------------------------------------------------------------------------------------
 Candescent Technologies Corp., Sr. Exchangeable, Series F(1),(2)                   200,000          1,918,000
                                                                                               ----------------
                                                                                                    20,878,000
 Total Preferred Stocks (Cost $8,900,000)

                                                                                  PRINCIPAL
                                                                                     AMOUNT
---------------------------------------------------------------------------------------------------------------
 SHORT-TERM NOTES--2.7%
 CIT Group, Inc., 6.49%, 10/2/00                                               $ 25,000,000         24,995,493
---------------------------------------------------------------------------------------------------------------
 New Center Asset Trust, 6.52%, 10/19/00                                         25,000,000         24,918,500
                                                                                               ----------------
 Total Short-Term Notes (Cost $49,913,993)                                                          49,913,993


---------------------------------------------------------------------------------------------------------------
 REPURCHASE AGREEMENTS--6.2%
 Repurchase agreement with Banc One Capital Markets, Inc., 6.45%,
 dated 9/29/00, to be repurchased at $115,026,794 on 10/2/00,
 collateralized by U.S. Treasury Bonds, 5.25%-15.75%, 11/15/01-5/15/30,
 with a value of $49,014,759, U.S. Treasury Nts., 4.25%-8.50%,
 11/15/00-11/15/08, with a value of $68,345,451 and U.S. Treasury Bills,
 11/9/00, with a value of $23,552 (Cost $114,965,000)                           114,965,000       114,965,000
---------------------------------------------------------------------------------------------------------------
 TOTAL INVESTMENTS, AT VALUE (COST $1,523,732,329)                                    100.5%    1,875,730,286
---------------------------------------------------------------------------------------------------------------
 LIABILITIES IN EXCESS OF OTHER ASSETS                                                 (0.5)       (8,472,107)
                                                                        ---------------------------------------
 NET ASSETS                                                                           100.0%   $1,867,258,179
                                                                        =======================================
</TABLE>


 FOOTNOTES TO STATEMENT OF INVESTMENTS

 1. Non-income-producing security.
 2. Identifies issues considered to be illiquid or restricted--See Note 6 of
 Notes to Financial Statements.

 SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.

                         18 OPPENHEIMER DISCOVERY FUND

<PAGE>   21
STATEMENT OF ASSETS AND LIABILITIES  September 30, 2000
<TABLE>

-----------------------------------------------------------------------------------------------
<S>                                                                           <C>
 ASSETS

 Investments, at value (cost $1,523,732,329)--see accompanying statement      $  1,875,730,286
-----------------------------------------------------------------------------------------------
 Cash                                                                                2,160,748
-----------------------------------------------------------------------------------------------
 Receivables and other assets:
 Investments sold                                                                   49,920,567
 Shares of beneficial interest sold                                                  3,653,002
 Interest and dividends                                                                119,785
 Other                                                                                 458,432
                                                                                 --------------
 Total assets                                                                    1,932,042,820

-----------------------------------------------------------------------------------------------
 LIABILITIES

 Payables and other liabilities:
 Investments purchased                                                              44,574,975
 Shares of beneficial interest redeemed                                             17,945,736
 Distribution and service plan fees                                                  1,052,320
 Transfer and shareholder servicing agent fees                                         287,063
 Trustees' compensation                                                                283,816
 Other                                                                                 640,731
                                                                                 --------------
 Total liabilities                                                                  64,784,641

-----------------------------------------------------------------------------------------------
 NET ASSETS                                                                   $  1,867,258,179
                                                                                 ==============
-----------------------------------------------------------------------------------------------
 COMPOSITION OF NET ASSETS

 Paid-in capital                                                              $  1,156,239,386
-----------------------------------------------------------------------------------------------
 Accumulated net investment loss                                                      (250,694)
-----------------------------------------------------------------------------------------------
 Accumulated net realized gain on investments and
 foreign currency transactions                                                     359,271,530
-----------------------------------------------------------------------------------------------
 Net unrealized appreciation on investments and translation
 of assets and liabilities denominated in foreign currencies                       351,997,957
                                                                                ---------------
 NET ASSETS                                                                   $  1,867,258,179
                                                                                ===============

</TABLE>

                         19 OPPENHEIMER DISCOVERY FUND


<PAGE>   22
STATEMENT OF ASSETS AND LIABILITIES  Continued

<TABLE>
<S>                                                                                      <C>
----------------------------------------------------------------------------------------------------
 NET ASSET VALUE PER SHARE

 Class A Shares:
 Net asset value and redemption price per share (based on net assets of
 $1,286,297,575 and 19,265,911 shares of beneficial interest outstanding)                     $66.77
 Maximum offering price per share (net asset value plus sales charge of 5.75% of
 offering price)                                                                              $70.84
 ---------------------------------------------------------------------------------------------------
 Class B Shares:
 Net asset value, redemption price (excludes applicable contingent deferred
 sales charge) and offering price per share (based on net assets of $423,689,431
 and 6,726,524 shares of beneficial interest outstanding)                                     $62.99
----------------------------------------------------------------------------------------------------
 Class C Shares:
 Net asset value, redemption price (excludes applicable contingent deferred
 sales charge) and offering price per share (based on net assets of $70,140,296
 and 1,095,952 shares of beneficial interest outstanding)                                     $64.00
----------------------------------------------------------------------------------------------------
 Class Y Shares:
 Net asset value, redemption price and offering price per share (based on net
 assets of $87,130,877 and 1,280,254 shares of beneficial interest outstanding)               $68.06
</TABLE>



 SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.

                          20 OPPENHEIMER DISCOVERY FUND

<PAGE>   23


STATEMENT OF OPERATIONS For the Year Ended September 30, 2000

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------
<S>                                                                                <C>
INVESTMENT INCOME
 Interest                                                                           $ 10,494,605
------------------------------------------------------------------------------------------------
 Dividends (net of foreign withholding taxes of $2,297)                                  930,958
                                                                                    ------------
 Total income                                                                         11,425,563

------------------------------------------------------------------------------------------------
 EXPENSES

 Management fees                                                                      10,861,232
------------------------------------------------------------------------------------------------
 Distribution and service plan fees:
 Class A                                                                               2,843,155
 Class B                                                                               3,713,228
 Class C                                                                                 551,071
------------------------------------------------------------------------------------------------
 Transfer and shareholder servicing agent fees:
 Class A                                                                               2,191,302
 Class B                                                                                 683,589
 Class C                                                                                  97,635
 Class Y                                                                                  65,049
------------------------------------------------------------------------------------------------
 Custodian fees and expenses                                                             102,655
------------------------------------------------------------------------------------------------
 Trustees' compensation                                                                   89,101
------------------------------------------------------------------------------------------------
 Other                                                                                 1,111,336
                                                                                    ------------
 Total expenses                                                                       22,309,353
 Less expenses paid indirectly                                                           (65,372)
                                                                                    ------------
 Net expenses                                                                         22,243,981


------------------------------------------------------------------------------------------------
 NET INVESTMENT LOSS                                                                 (10,818,418)

------------------------------------------------------------------------------------------------
 REALIZED AND UNREALIZED GAIN (LOSS)

 Net realized gain (loss) on:
 Investments                                                                         473,743,645
 Foreign currency transactions                                                          (171,938)

 Net realized gain                                                                   473,571,707
------------------------------------------------------------------------------------------------
 Net change in unrealized appreciation (depreciation) on:
 Investments                                                                         145,851,515
 Translation of assets and liabilities denominated in foreign currencies                (309,252)
                                                                                    ------------
 Net change                                                                          145,542,263
                                                                                    ------------
 Net realized and unrealized gain                                                    619,113,970


------------------------------------------------------------------------------------------------
 NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS                               $608,295,552
                                                                                    ============
</TABLE>


SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                          21 OPPENHEIMER DISCOVERY FUND


<PAGE>   24

STATEMENTS OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
YEAR ENDED SEPTEMBER 30,                                                              2000               1999
----------------------------------------------------------------------------------------------------------------
<S>                                                                         <C>                <C>
 OPERATIONS

Net investment loss                                                           $(10,818,418)      $(10,452,859)
----------------------------------------------------------------------------------------------------------------
Net realized gain                                                              473,571,707         79,072,011
----------------------------------------------------------------------------------------------------------------
Net change in unrealized appreciation                                          145,542,263         69,855,627
                                                                            ------------------------------------
Net increase in net assets resulting from operations                           608,295,552        138,474,779

----------------------------------------------------------------------------------------------------------------
DIVIDENDS AND/OR DISTRIBUTIONS TO SHAREHOLDERS

Distributions from net realized gain:
Class A                                                                        (48,950,971)       (33,486,062)
Class B                                                                        (15,499,580)       (10,003,098)
Class C                                                                         (1,945,396)        (1,248,219)
Class Y                                                                         (2,425,868)        (1,407,650)

----------------------------------------------------------------------------------------------------------------
BENEFICIAL INTEREST TRANSACTIONS

Net increase (decrease) in net assets resulting from beneficial interest
transactions:
Class A                                                                        134,098,247       (265,166,206)
Class B                                                                         87,560,981        (58,016,597)
Class C                                                                         29,719,349         (8,383,628)
Class Y                                                                         34,700,391         (3,821,532)

----------------------------------------------------------------------------------------------------------------
NET ASSETS

Total increase (decrease)                                                      825,552,705       (243,058,213)
----------------------------------------------------------------------------------------------------------------
Beginning of period                                                          1,041,705,474      1,284,763,687
                                                                            ------------------------------------
End of period (including accumulated net investment
loss of $250,694 and $234,171, respectively)                                $1,867,258,179     $1,041,705,474
                                                                            ====================================
</TABLE>






SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                          22 OPPENHEIMER DISCOVERY FUND


<PAGE>   25

FINANCIAL HIGHLIGHTS

<TABLE>
<CAPTION>
 CLASS A        YEAR ENDED SEPTEMBER 30,                 2000        1999         1998          1997          1996
----------------------------------------------------------------------------------------------------------------------------
<S>                                                     <C>         <C>          <C>           <C>           <C>
PER SHARE OPERATING DATA
Net asset value, beginning of period                    $43.26      $40.12       $51.72        $51.19        $43.65
----------------------------------------------------------------------------------------------------------------------------
Income (loss) from investment operations:
Net investment loss                                       (.32)       (.28)        (.26)         (.08)         (.13)
Net realized and unrealized gain (loss)                  26.72        4.84       (10.37)         4.12         11.26
                                                        --------------------------------------------------------------------
Total income (loss) from
investment operations                                    26.40        4.56       (10.63)         4.04         11.13
----------------------------------------------------------------------------------------------------------------------------
Dividends and/or distributions to shareholders:
Distributions from net realized gain                     (2.89)      (1.42)        (.97)        (3.51)        (3.59)
----------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                          $66.77      $43.26       $40.12        $51.72        $51.19
                                                        ====================================================================

TOTAL RETURN, AT NET ASSET VALUE(1)                      62.15%      11.59%      (20.78)%        9.16%        27.76%

----------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)                 $1,286        $750         $946        $1,330        $1,160
----------------------------------------------------------------------------------------------------------------------------
Average net assets (in millions)                        $1,176        $875       $1,216        $1,119          $938
----------------------------------------------------------------------------------------------------------------------------
Ratios to average net assets:(2)
Net investment loss                                      (0.47)%     (0.69)%      (0.51)%       (0.17)%       (0.32)%
Expenses                                                  1.15%       1.31%        1.18%(3)      1.22%(3)      1.22%(3)
----------------------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                                    224%         73%          82%           69%           80%
</TABLE>



 1. Assumes a $1,000 hypothetical initial investment on the business day before
 the first day of the fiscal period (or inception of offering), with all
 dividends and distributions reinvested in additional shares on the reinvestment
 date, and redemption at the net asset value calculated on the last business day
 of the fiscal period. Sales charges are not reflected in the total returns.
 Total returns are not annualized for periods of less than one full year.
 2. Annualized for periods of less than one full year.
 3. Expense ratio has not been grossed up to reflect the effect of expenses paid
 indirectly.

 SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                          23 OPPENHEIMER DISCOVERY FUND

<PAGE>   26

FINANCIAL HIGHLIGHTS Continued

<TABLE>
<CAPTION>
 CLASS B        YEAR ENDED SEPTEMBER 30,                2000        1999        1998        1997        1996
-----------------------------------------------------------------------------------------------------------------
<S>                                                   <C>         <C>         <C>         <C>         <C>
PER SHARE OPERATING DATA
Net asset value, beginning of period                  $41.22      $38.58      $50.15      $50.10      $43.11
-----------------------------------------------------------------------------------------------------------------
Income (loss) from investment operations:
Net investment loss                                     (.47)       (.85)       (.55)       (.23)       (.23)
Net realized and unrealized gain (loss)                25.13        4.91      (10.05)       3.79       10.81

Total income (loss) from
investment operations                                  24.66        4.06      (10.60)       3.56       10.58
-----------------------------------------------------------------------------------------------------------------
Dividends and/or distributions to shareholders:
Distributions from net realized gain                   (2.89)      (1.42)       (.97)      (3.51)      (3.59)
-----------------------------------------------------------------------------------------------------------------
Net asset value, end of period                        $62.99      $41.22      $38.58      $50.15      $50.10
                                                      ===========================================================

-----------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET VALUE(1)                    60.95%      10.73%     (21.37)%      8.33%      26.77%

-----------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA

Net assets, end of period (in millions)                 $424        $225        $266        $323        $194
-----------------------------------------------------------------------------------------------------------------
Average net assets (in millions)                        $372        $257        $319        $233        $120
-----------------------------------------------------------------------------------------------------------------
Ratios to average net assets:(2)
Net investment loss                                    (1.22)%     (1.45)%     (1.27)%     (0.93)%     (1.06)%
Expenses                                                1.90%       2.07%       1.94%(3)    1.97%(3)    1.99%(3)
-----------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                                  224%         73%         82%         69%         80%
</TABLE>



 1. Assumes a $1,000 hypothetical initial investment on the business day before
 the first day of the fiscal period (or inception of offering), with all
 dividends and distributions reinvested in additional shares on the reinvestment
 date, and redemption at the net asset value calculated on the last business day
 of the fiscal period. Sales charges are not reflected in the total returns.
 Total returns are not annualized for periods of less than one full year.
 2. Annualized for periods of less than one full year.
 3. Expense ratio has not been grossed up to reflect the effect of expenses paid
 indirectly.

 SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                          24 OPPENHEIMER DISCOVERY FUND
<PAGE>   27

<TABLE>
<CAPTION>
 CLASS C        YEAR ENDED SEPTEMBER 30,                2000      1999       1998       1997       1996(1)
----------------------------------------------------------------------------------------------------------
<S>                                                   <C>        <C>       <C>        <C>        <C>
PER SHARE OPERATING DATA
Net asset value, beginning of period                  $41.85     $39.15     $50.86     $50.73     $43.20
----------------------------------------------------------------------------------------------------------
Income (loss) from investment operations:
Net investment loss                                     (.24)      (.85)      (.55)      (.26)      (.21)
Net realized and unrealized gain (loss)                25.28       4.97     (10.19)      3.90      11.33
                                                       ---------------------------------------------------
Total income (loss) from
investment operations                                  25.04       4.12     (10.74)      3.64      11.12
----------------------------------------------------------------------------------------------------------
Dividends and/or distributions to shareholders:
Distributions from net realized gain                   (2.89)     (1.42)      (.97)     (3.51)     (3.59)
----------------------------------------------------------------------------------------------------------
Net asset value, end of period                        $64.00     $41.85     $39.15     $50.86     $50.73
                                                      ====================================================


----------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET VALUE(2)                    60.95%     10.73%    (21.34)%     8.39%     27.96%



RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)                  $70        $27        $33        $42        $18
----------------------------------------------------------------------------------------------------------
Average net assets (in millions)                         $55        $32        $41        $26         $7
Ratios to average net assets:(3)
Net investment loss                                    (1.20)%    (1.45)%    (1.25)%    (0.92)%    (1.00)%
Expenses                                                1.90%      2.07%      1.92%(4)   1.94%(4)   2.03%(4)
----------------------------------------------------------------------------------------------------------
Portfolio turnover rate                                  224%        73%        82%        69%        80%
</TABLE>



 1. For the period from October 2, 1995 (inception of offering) to September 30,
 1996.
 2. Assumes a $1,000 hypothetical initial investment on the business day
 before the first day of the fiscal period (or inception of offering), with all
 dividends and distributions reinvested in additional shares on the reinvestment
 date, and redemption at the net asset value calculated on the last business day
 of the fiscal period. Sales charges are not reflected in the total returns.
 Total returns are not annualized for periods of less than one full year.
 3. Annualized for periods of less than one full year.
 4. Expense ratio has not been grossed up to reflect the effect of expenses paid
 indirectly.

 SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                          25 OPPENHEIMER DISCOVERY FUND

<PAGE>   28
FINANCIAL HIGHLIGHTS Continued

<TABLE>
<CAPTION>
CLASS Y         YEAR ENDED SEPTEMBER 30,                2000       1999       1998       1997       1996
--------------------------------------------------------------------------------------------------------------
<S>                                                   <C>        <C>       <C>         <C>        <C>
PER SHARE OPERATING DATA
Net asset value, beginning of period                  $43.92     $40.63     $52.17     $51.44     $43.74
--------------------------------------------------------------------------------------------------------------
Income (loss) from investment operations:
Net investment income (loss)                            (.30)      (.17)      (.09)       .02       (.02)
Net realized and unrealized gain (loss)                27.33       4.88     (10.48)      4.22      11.31
                                                       -------------------------------------------------------
Total income (loss) from
investment operations                                  27.03       4.71     (10.57)      4.24      11.29
--------------------------------------------------------------------------------------------------------------
Dividends and/or distributions to shareholders:
Distributions from net realized gain                   (2.89)     (1.42)      (.97)     (3.51)     (3.59)
--------------------------------------------------------------------------------------------------------------
Net asset value, end of period                        $68.06     $43.92     $40.63     $52.17     $51.44
                                                      ========================================================


--------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET VALUE(1)                    62.68%     11.82%    (20.47)%     9.50%     28.09%



--------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA

Net assets, end of period (in millions)                  $87        $39        $40        $45        $32
--------------------------------------------------------------------------------------------------------------
Average net assets (in millions)                         $77        $41        $45        $35        $19
--------------------------------------------------------------------------------------------------------------
Ratios to average net assets:(2)
Net investment income (loss)                           (0.11)%    (0.48)%    (0.15)%     0.15%     (0.04)%
Expenses                                                0.80%      1.11%      0.81%(3)   0.89%(3)   0.99%(3)
--------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                                  224%        73%        82%        69%        80%
</TABLE>



 1. Assumes a $1,000 hypothetical initial investment on the business day before
 the first day of the fiscal period (or inception of offering), with all
 dividends and distributions reinvested in additional shares on the reinvestment
 date, and redemption at the net asset value calculated on the last business day
 of the fiscal period. Sales charges are not reflected in the total returns.
 Total returns are not annualized for periods of less than one full year.
 2. Annualized for periods of less than one full year.
 3. Expense ratio has not been grossed up to reflect the effect of expenses paid
 indirectly.

 SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                          26 OPPENHEIMER DISCOVERY FUND

<PAGE>   29
NOTES TO FINANCIAL STATEMENTS

===============================================================================
1. SIGNIFICANT ACCOUNTING POLICIES
 Oppenheimer Discovery Fund (the Fund) is registered under the Investment
 Company Act of 1940, as amended, as an open-end management investment company.
 The Fund's investment objective is to seek capital appreciation. The Fund's
 investment advisor is OppenheimerFunds, Inc. (the Manager).
    The Fund offers Class A, Class B, Class C and Class Y shares. Class A shares
 are sold at their offering price, which is normally net asset value plus a
 front-end sales charge. Class B and Class C shares are sold without a front-end
 sales charge but may be subject to a contingent deferred sales charge (CDSC).
 Class Y shares are sold to certain institutional investors without either a
 front-end sales charge or a CDSC. All classes of shares have identical rights
 to earnings, assets and voting privileges, except that each class has its own
 expenses directly attributable to that class and exclusive voting rights with
 respect to matters affecting that class. Classes A, B and C have separate
 distribution and/or service plans. No such plan has been adopted for Class Y
 shares. Class B shares will automatically convert to Class A shares six years
 after the date of purchase. The following is a summary of significant
 accounting policies consistently followed by the Fund.
--------------------------------------------------------------------------------
 SECURITIES VALUATION. Securities listed or traded on National Stock Exchanges
 or other domestic or foreign exchanges are valued based on the last sale price
 of the security traded on that exchange prior to the time when the Fund's
 assets are valued. In the absence of a sale, the security is valued at the last
 sale price on the prior trading day, if it is within the spread of the closing
 bid and asked prices, and if not, at the closing bid price. Securities
 (including restricted securities) for which quotations are not readily
 available are valued primarily using dealer-supplied valuations, a portfolio
 pricing service authorized by the Board of Trustees, or at their fair value.
 Fair value is determined in good faith under consistently applied procedures
 under the supervision of the Board of Trustees. Short-term "money market type"
 debt securities with remaining maturities of sixty days or less are valued at
 amortized cost (which approximates market value).
--------------------------------------------------------------------------------
 FOREIGN CURRENCY TRANSLATION. The accounting records of the Fund are maintained
 in U.S. dollars. Prices of securities denominated in foreign currencies are
 translated into U.S. dollars at the closing rates of exchange. Amounts related
 to the purchase and sale of foreign securities and investment income are
 translated at the rates of exchange prevailing on the respective dates of such
 transactions.
     The effect of changes in foreign currency exchange rates on  investments
 is separately identified from the fluctuations arising from changes in market
 values of securities held and reported with all other foreign currency gains
 and losses in the Fund's Statement of Operations.


                         27 OPPENHEIMER DISCOVERY FUND
<PAGE>   30
NOTES TO FINANCIAL STATEMENTS Continued

================================================================================
 1. SIGNIFICANT ACCOUNTING POLICIES  Continued
 REPURCHASE AGREEMENTS. The Fund requires the custodian to take possession, to
 have legally segregated in the Federal Reserve Book Entry System or to have
 segregated within the custodian's vault, all securities held as collateral for
 repurchase agreements. The market value of the underlying securities is
 required to be at least 102% of the resale price at the time of purchase. If
 the seller of the agreement defaults and the value of the collateral declines,
 or if the seller enters an insolvency proceeding, realization of the value of
 the collateral by the Fund may be delayed or limited.
--------------------------------------------------------------------------------
 ALLOCATION OF INCOME, EXPENSES, GAINS AND LOSSES. Income, expenses (other than
 those attributable to a specific class), gains and losses are allocated daily
 to each class of shares based upon the relative proportion of net assets
 represented by such class. Operating expenses directly attributable to a
 specific class are charged against the operations of that class.
--------------------------------------------------------------------------------
 FEDERAL TAXES. The Fund intends to continue to comply with provisions of the
 Internal Revenue Code applicable to regulated investment companies and to
 distribute all of its taxable income, including any net realized gain on
 investments not offset by loss carryovers, to shareholders. Therefore, no
 federal income or excise tax provision is required.
--------------------------------------------------------------------------------
 TRUSTEES' COMPENSATION. The Fund has adopted an unfunded retirement plan for
 the Fund's independent Board of Trustees. Benefits are based on years of
 service and fees paid to each trustee during the years of service. During the
 year ended September 30, 2000, a provision of $27,443 was made for the Fund's
 projected benefit obligations and payments of $10,918 were made to retired
 trustees, resulting in an accumulated liability of $252,850 as of September 30,
 2000.
    The Board of Trustees has adopted a deferred compensation plan for
 independent trustees that enables trustees to elect to defer receipt of all or
 a portion of annual compensation they are entitled to receive from the Fund.
 Under the plan, the compensation deferred is periodically adjusted as though an
 equivalent amount had been invested for the Board of Trustees in shares of one
 or more Oppenheimer funds selected by the trustee. The amount paid to the Board
 of Trustees under the plan will be determined based upon the performance of the
 selected funds. Deferral of trustees' fees under the plan will not affect the
 net assets of the Fund, and will not materially affect the Fund's assets,
 liabilities or net investment income per share.
--------------------------------------------------------------------------------
 DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS. Dividends and distributions to
 shareholders, which are determined in accordance with income tax regulations,
 are recorded on the ex-dividend date.

                         28 OPPENHEIMER DISCOVERY FUND
<PAGE>   31

--------------------------------------------------------------------------------
 CLASSIFICATION OF DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS. Net investment
 income (loss) and net realized gain (loss) may differ for financial statement
 and tax purposes. The character of dividends and distributions made during the
 fiscal year from net investment income or net realized gains may differ from
 its ultimate characterization for federal income tax purposes. Also, due to
 timing of dividends and distributions, the fiscal year in which amounts are
 distributed may differ from the fiscal year in which the income or realized
 gain was recorded by the Fund.
    The Fund adjusts the classification of distributions to shareholders to
 reflect the differences between financial statement amounts and distributions
 determined in accordance with income tax regulations. Accordingly, during the
 year ended September 30, 2000, amounts have been reclassified to reflect an
 increase in paid-in capital of $101,090,271, a decrease in accumulated net
 investment loss of $10,801,895, and a decrease in accumulated net realized gain
 on investments of $111,892,166. This reclassification includes $101,090,271
 distributed in connection with Fund share redemptions which increased paid-in
 capital and reduced accumulated net realized gain. Net assets of the Fund were
 unaffected by the reclassifications.
--------------------------------------------------------------------------------
 EXPENSE OFFSET ARRANGEMENTS. Expenses paid indirectly represent a reduction of
 custodian fees for earnings on cash balances maintained by the Fund.
--------------------------------------------------------------------------------
 OTHER. Investment transactions are accounted for as of trade date and dividend
 income is recorded on the ex-dividend date. Certain dividends from foreign
 securities will be recorded as soon as the Fund is informed of the dividend if
 such information is obtained subsequent to the ex-dividend date. Realized gains
 and losses on investments and unrealized appreciation and depreciation are
 determined on an identified cost basis, which is the same basis used for
 federal income tax purposes.
    The preparation of financial statements in conformity with generally
 accepted accounting principles requires management to make estimates and
 assumptions that affect the reported amounts of assets and liabilities and
 disclosure of contingent assets and liabilities at the date of the financial
 statements and the reported amounts of income and expenses during the reporting
 period. Actual results could differ from those estimates.

                         29 OPPENHEIMER DISCOVERY FUND
<PAGE>   32

NOTES TO FINANCIAL STATEMENTS Continued

================================================================================
 2. SHARES OF BENEFICIAL INTEREST
 The Fund has authorized an unlimited number of no par value shares of
 beneficial interest of each class. Transactions in shares of beneficial
 interest were as follows:

<TABLE>
<CAPTION>
                                YEAR ENDED SEPTEMBER 30, 2000      YEAR ENDED SEPTEMBER 30, 1999
                                      SHARES           AMOUNT           SHARES            AMOUNT
------------------------------------------------------------------------------------------------------------------------------------
<S>                            <C>           <C>                  <C>          <C>
 CLASS A
 Sold                             10,572,195    $ 700,492,924        7,340,366    $  305,832,917
 Dividends and/or
 distributions reinvested            835,171       47,755,057          780,123        31,868,038
 Redeemed                         (9,489,580)    (614,149,734)     (14,350,871)     (602,867,161)
                                  --------------------------------------------------------------------
 Net increase (decrease)           1,917,786     $134,098,247       (6,230,382)    $(265,166,206)
                                  ====================================================================

------------------------------------------------------------------------------------------------------------------------------------
 CLASS B
 Sold                              3,332,677    $ 214,014,951        1,771,225      $ 70,895,318
 Dividends and/or
 distributions reinvested            279,543       15,170,839          249,023         9,751,761
 Redeemed                         (2,336,781)    (141,624,809)      (3,455,595)     (138,663,676)
                                  --------------------------------------------------------------------
 Net increase (decrease)           1,275,439     $ 87,560,981       (1,435,347)    $ (58,016,597)
                                  ====================================================================

------------------------------------------------------------------------------------------------------------------------------------
 CLASS C
 Sold                              1,784,337    $ 112,381,786        1,894,040    $   76,754,870
 Dividends and/or
 distributions reinvested             34,336        1,893,313           30,536         1,214,123
 Redeemed                         (1,377,721)     (84,555,750)      (2,123,773)      (86,352,621)
                                  -------------------------------------------------------------------
 Net increase (decrease)             440,952     $ 29,719,349         (199,197)      $(8,383,628)
                                  ===================================================================

------------------------------------------------------------------------------------------------------------------------------------
 CLASS Y
 Sold                              1,639,835    $ 118,744,235          453,623    $   19,236,361
 Dividends and/or
 distributions reinvested             41,732        2,425,868           34,009         1,407,649
 Redeemed                         (1,293,525)     (86,469,712)        (571,735)      (24,465,542)
                                  -------------------------------------------------------------------
 Net increase (decrease)             388,042     $ 34,700,391          (84,103)    $  (3,821,532)
                                  ===================================================================

====================================================================================================================================
</TABLE>
 3. PURCHASES AND SALES OF SECURITIES
 The aggregate cost of purchases and proceeds from sales of securities, other
 than short-term obligations, for the year ended September 30, 2000, were
 $3,634,297,821 and $3,327,383,050, respectively.

 As of September 30, 2000, unrealized appreciation (depreciation) based on cost
 of securities for federal income tax purposes of $1,528,354,760 was:

 Gross unrealized appreciation         $ 412,482,160
 Gross unrealized depreciation           (65,106,634)
                                       --------------
 Net unrealized appreciation           $ 347,375,526
                                       =============

                         30 OPPENHEIMER DISCOVERY FUND
<PAGE>   33

================================================================================
 4. FEES AND OTHER TRANSACTIONS WITH AFFILIATES
 MANAGEMENT FEES. Management fees paid to the Manager were in accordance with
 the investment advisory agreement with the Fund which provides for a fee of
 0.75% of the first $200 million of average annual net assets, 0.72% of the next
 $200 million, 0.69% of the next $200 million, 0.66% of the next $200 million,
 0.60% of the next $700 million and 0.58% of average annual net assets in excess
 of $1.5 billion. The Fund's management fee for the year ended September 30,
 2000, was an annualized rate of 0.65%, before any waiver by the Manager if
 applicable.
--------------------------------------------------------------------------------
 TRANSFER AGENT FEES. OppenheimerFunds Services (OFS), a division of the
 Manager, acts as the transfer and shareholder servicing agent for the Fund on
 an "at-cost" basis. OFS also acts as the transfer and shareholder servicing
 agent for the other Oppenheimer funds.
--------------------------------------------------------------------------------
 DISTRIBUTION AND SERVICE PLAN FEES. Under its General Distributor's Agreement
 with the Manager, the Distributor acts as the Fund's principal underwriter in
 the continuous public offering of the different classes of shares of the Fund.

 The compensation paid to (or retained by) the Distributor from the sale of
 shares or on the redemption of shares is shown in the table below for the
 period indicated.

<TABLE>
<CAPTION>
                            AGGREGATE        CLASS A   COMMISSIONS    COMMISSIONS   COMMISSIONS
                            FRONT-END      FRONT-END    ON CLASS A     ON CLASS B    ON CLASS C
                        SALES CHARGES  SALES CHARGES        SHARES         SHARES        SHARES
                           ON CLASS A    RETAINED BY   ADVANCED BY    ADVANCED BY   ADVANCED BY
 YEAR ENDED                    SHARES    DISTRIBUTOR  DISTRIBUTOR(1) DISTRIBUTOR(1)DISTRIBUTOR(1)
------------------------------------------------------------------------------------------------------------------------------------
<S>                      <C>              <C>           <C>          <C>             <C>
 September 30, 2000        $2,632,889       $794,399      $342,591     $3,080,610      $255,800
</TABLE>

 1. The Distributor advances commission payments to dealers for certain sales of
 Class A shares and for sales of Class B and Class C shares from its own
 resources at the time of sale.

<TABLE>
<CAPTION>
                              CLASS A                      CLASS B                      CLASS C
                  CONTINGENT DEFERRED          CONTINGENT DEFERRED          CONTINGENT DEFERRED
                        SALES CHARGES                SALES CHARGES                SALES CHARGES
 YEAR ENDED   RETAINED BY DISTRIBUTOR      RETAINED BY DISTRIBUTOR      RETAINED BY DISTRIBUTOR
------------------------------------------------------------------------------------------------------------------------------------
<S>                       <C>                         <C>                           <C>
 September 30, 2000           $32,097                     $630,269                      $13,194
</TABLE>

    The Fund has adopted a Service Plan for Class A shares and Distribution and
 Service Plans for Class B and Class C shares under Rule 12b-1 of the Investment
 Company Act. Under those plans the Fund pays the Distributor for all or a
 portion of its costs incurred in connection with the distribution and/or
 servicing of the shares of the particular class.

--------------------------------------------------------------------------------
 CLASS A SERVICE PLAN FEES. Under the Class A service plan, the Distributor
 currently uses the fees it receives from the Fund to pay brokers, dealers and
 other financial institutions. The Class A service plan permits reimbursements
 to the Distributor at a rate of up to 0.25% of average annual net assets of
 Class A shares purchased. The Distributor makes payments to plan recipients
 quarterly at an annual rate not to exceed 0.25% of the average annual net
 assets consisting of Class A shares of the Fund. For the year ended September
 30, 2000, payments under the Class A plan totaled $2,843,155 prior to Manager
 waiver if applicable, all of which were paid by the Distributor to recipients,
 and included $215,426 paid to an affiliate of the Manager. Any unreimbursed
 expenses the

                         31 OPPENHEIMER DISCOVERY FUND
<PAGE>   34

NOTES TO FINANCIAL STATEMENTS Continued

================================================================================
 4. FEES AND OTHER TRANSACTIONS WITH AFFILIATES  Continued
 Distributor incurs with respect to Class A shares in any fiscal year cannot be
 recovered in subsequent years.
--------------------------------------------------------------------------------
 CLASS B AND CLASS C DISTRIBUTION AND SERVICE PLAN FEES. Under each plan,
 service fees and distribution fees are computed on the average of the net asset
 value of shares in the respective class, determined as of the close of each
 regular business day during the period. The Class B and Class C plans provide
 for the Distributor to be compensated at a flat rate, whether the Distributor's
 distribution expenses are more or less than the amounts paid by the Fund under
 the plan during the period for which the fee is paid.
    The Distributor retains the asset-based sales charge on Class B shares. The
 Distributor retains the asset-based sales charge on Class C shares during the
 first year the shares are outstanding. The asset-based sales charges on Class B
 and Class C shares allow investors to buy shares without a front-end sales
 charge while allowing the Distributor to compensate dealers that sell those
 shares.
    The Distributor's actual expenses in selling Class B and Class C shares may
 be more than the payments it receives from the contingent deferred sales
 charges collected on redeemed shares and asset-based sales charges from the
 Fund under the plans. If any plan is terminated by the Fund, the Board of
 Trustees may allow the Fund to continue payments of the asset-based sales
 charge to the Distributor for distributing shares before the plan was
 terminated. The plans allow for the carry-forward of distribution expenses, to
 be recovered from asset-based sales charges in subsequent fiscal periods.

 Distribution fees paid to the Distributor for the year ended September 30,
 2000, were as follows:

<TABLE>
<CAPTION>
                                                                 DISTRIBUTOR'S     DISTRIBUTOR'S
                                                                     AGGREGATE      UNREIMBURSED
                                                                  UNREIMBURSED     EXPENSES AS %
                              TOTAL PAYMENTS  AMOUNT RETAINED         EXPENSES     OF NET ASSETS
                                  UNDER PLAN   BY DISTRIBUTOR       UNDER PLAN          OF CLASS
--------------------------------------------------------------------------------------------------------
<S>                              <C>              <C>              <C>                       <C>
 Class B Plan                     $3,713,228       $2,970,317       $7,572,564                1.79%
 Class C Plan                        551,071          180,403          796,157                1.14
========================================================================================================
</TABLE>


 5. FOREIGN CURRENCY CONTRACTS
 A foreign currency contract is a commitment to purchase or sell a foreign
 currency at a future date, at a negotiated rate. The Fund may enter into
 foreign currency contracts for operational purposes and to seek to protect
 against adverse exchange rate fluctuations. Risks to the Fund include the
 potential inability of the counterparty to meet the terms of the contract.
    The net U.S. dollar value of foreign currency underlying all contractual
 commitments held by the Fund and the resulting unrealized appreciation or
 depreciation are determined using foreign currency exchange rates as provided
 by a reliable bank, dealer or pricing service. Unrealized appreciation and
 depreciation on foreign currency contracts are reported in the Statement of
 Assets and Liabilities.

                         32 OPPENHEIMER DISCOVERY FUND
<PAGE>   35

--------------------------------------------------------------------------------
    The Fund may realize a gain or loss upon the closing or settlement of the
 foreign currency transactions. Realized gains and losses are reported with all
 other foreign currency gains and losses in the Statement of Operations.
    Securities denominated in foreign currency to cover net exposure on
 outstanding foreign currency contracts are noted in the Statement of
 Investments where applicable.

================================================================================
 6. ILLIQUID OR RESTRICTED SECURITIES
 As of September 30, 2000, investments in securities included issues that are
 illiquid or restricted. Restricted securities are often purchased in private
 placement transactions, are not registered under the Securities Act of 1933,
 may have contractual restrictions on resale, and are valued under methods
 approved by the Board of Trustees as reflecting fair value. A security may also
 be considered illiquid if it lacks a readily available market or if its
 valuation has not changed for a certain period of time. The Fund intends to
 invest no more than 10% of its net assets (determined at the time of purchase
 and reviewed periodically) in illiquid or restricted securities. Certain
 restricted securities, eligible for resale to qualified institutional
 investors, are not subject to that limitation. The aggregate value of illiquid
 or restricted securities subject to this limitation as of September 30, 2000,
 was $20,878,000, which represents 1.12% of the Fund's net assets, all of which
 is considered restricted. Information concerning restricted securities is as
 follows:

<TABLE>
<CAPTION>
                                                                                     VALUATION
                                                                                  PER UNIT AS OF
 SECURITY                                    ACQUISITION DATE    COST PER UNIT     SEPTEMBER 30, 2000
------------------------------------------------------------------------------------------------------------------------------------
<S>                                                     <C>             <C>               <C>
 STOCKS AND WARRANTS
 Candescent Technologies Corp., 2.50% Cv.,
 Series D                                                   3/31/95         $2.50             $9.28
------------------------------------------------------------------------------------------------------------------------------------
 Candescent Technologies Corp., Sr. Exchangeable,
 Series E                                                   4/24/96          5.50              9.78
------------------------------------------------------------------------------------------------------------------------------------
 Candescent Technologies Corp., Sr. Exchangeable,
 Series F                                                   6/11/97          7.50              9.59

</TABLE>
 7. BANK BORROWINGS
================================================================================
 The Fund may borrow from a bank for temporary or emergency purposes including,
 without limitation, funding of shareholder redemptions provided asset coverage
 for borrowings exceeds 300%. The Fund has entered into an agreement which
 enables it to participate with other Oppenheimer funds in an unsecured line of
 credit with a bank, which permits borrowings up to $400 million, collectively.
 Interest is charged to each fund, based on its borrowings, at a rate equal to
 the Federal Funds Rate plus 0.45%. Borrowings are payable 30 days after such
 loan is executed. The Fund also pays a commitment fee equal to its pro rata
 share of the average unutilized amount of the credit facility at a rate of
 0.08% per annum.
    The Fund had no borrowings outstanding during the year ended September 30,
 2000.

                         33 OPPENHEIMER DISCOVERY FUND
<PAGE>   36

 INDEPENDENT AUDITORS' REPORT
================================================================================
 THE BOARD OF TRUSTEES AND SHAREHOLDERS
 OF OPPENHEIMER DISCOVERY FUND:

 We have audited the accompanying statement of assets and liabilities, including
 the statement of investments, of Oppenheimer Discovery Fund as of September 30,
 2000, and the related statement of operations for the year then ended, the
 statements of changes in net assets for each of the years in the two-year
 period then ended and the financial highlights for each of the years in the
 five-year period then ended. 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 auditing standards generally
 accepted in the United States of America. 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 September 30, 2000, by
 correspondence with the custodian and brokers; and where confirmations were not
 received from brokers, we performed other auditing procedures. 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
 Oppenheimer Discovery Fund as of September 30, 2000, the results of its
 operations for the year then ended, the changes in its net assets for each of
 the years in the two-year period then ended, and the financial highlights for
 each of the years in the five-year period then ended, in conformity with
 accounting principles generally accepted in the United States of America.






 KPMG LLP

 Denver, Colorado
 October 20, 2000

                         34 OPPENHEIMER DISCOVERY FUND

<PAGE>   37

FEDERAL INCOME TAX INFORMATION Unaudited

================================================================================
       In early 2001 shareholders will receive information regarding all
 dividends and distributions paid to them by the Fund during calendar year 2000.
 Regulations of the U.S. Treasury Department require the Fund to report this
 information to the Internal Revenue Service.
       Distributions of $2.8913, per share were paid to Class A, Class B, Class
 C and Class Y shareholders, on December 10, 1999, of which $2.0496 was
 designated as a "capital gain distribution" for federal income tax purposes.
 Whether received in stock or in cash, the capital gain distribution should be
 treated by shareholders as a gain from the sale of capital assets held for more
 than one year (long-term capital gains).
       The foregoing information is presented to assist shareholders in
 reporting distributions received from the Fund to the Internal Revenue Service.
 Because of the complexity of the federal regulations which may affect your
 individual tax return and the many variations in state and local tax
 regulations, we recommend that you consult your tax advisor for specific
 guidance.

                         35 OPPENHEIMER DISCOVERY FUND
<PAGE>   38

OPPENHEIMER DISCOVERY FUND

================================================================================
OFFICERS AND TRUSTEES    Leon Levy, Chairman of the Board of Trustees
                         Donald W. Spiro, Vice Chairman of the Board of Trustees
                         Bridget A. Macaskill, Trustee and President
                         Robert G. Galli, Trustee
                         Benjamin Lipstein, Trustee
                         Elizabeth B. Moynihan, Trustee
                         Kenneth A. Randall, Trustee
                         Edward V. Regan, Trustee
                         Russell S. Reynolds, Jr., Trustee
                         Clayton K. Yeutter, Trustee
                         Jayne Stevlingson, Vice President
                         Andrew J. Donohe, Secretary
                         Brian W. Wixted, Treasurer
                         Robert J. Bishop, Assistant Treasurer
                         Scott T. Farrar, Assistant Treasurer
                         Robert G. Zack, Assistant Secretary
================================================================================
INVESTMENT ADVISOR       OppenheimerFunds, Inc.

================================================================================
DISTRIBUTOR              OppenheimerFunds Distributor, Inc.

================================================================================
TRANSFER AND SHAREHOLDER OppenheimerFunds Services
SERVICING AGENT

================================================================================
CUSTODIAN OF             The Bank of New York
PORTFOLIO SECURITIES

================================================================================
INDEPENDENT AUDITORS     KPMG LLP

================================================================================
LEGAL COUNSEL            Mayer, Brown & Platt

                         For more complete information about Oppenheimer
                         Discovery Fund, please refer to the Prospectus. To
                         obtain a copy, call your financial advisor, or call
                         OppenheimerFunds Distributor, Inc. at 1.800.525.7048,
                         or visit the OppenheimerFunds Internet website, at
                         WWW.OPPENHEIMERFUNDS.COM.

                         SHARES OF OPPENHEIMER FUNDS ARE NOT DEPOSITS OR
                         OBLIGATIONS OF ANY BANK, ARE NOT GUARANTEED BY ANY
                         BANK, ARE NOT INSURED BY THE FDIC OR ANY OTHER
                         AGENCY, AND INVOLVE INVESTMENT RISKS, INCLUDING THE
                         POSSIBLE LOSS OF THE PRINCIPAL AMOUNT INVESTED.

                         OPPENHEIMER FUNDS ARE DISTRIBUTED BY OPPENHEIMERFUNDS
                         DISTRIBUTOR, INC., TWO WORLD TRADE CENTER, NEW YORK,
                         NY 10048-0203.

         (C)Copyright 2000 OppenheimerFunds, Inc. All rights reserved.

                         36 OPPENHEIMER DISCOVERY FUND

<PAGE>   39

INFORMATION AND SERVICES

As an Oppenheimer fund shareholder, you can benefit from special services
designed to make investing simple. Whether it's automatic investment plans,
timely market updates, or immediate account access, you can count on us whenever
you need assistance. So call us today, or visit our website-- we're here to
help.

--------------------------------------------------------------------------------
INTERNET
24-hr access to account information and transactions(1)
WWW.OPPENHEIMERFUNDS.COM

--------------------------------------------------------------------------------
GENERAL INFORMATION
Mon-Fri 8am-9pm ET, Sat 10am-4pm ET
1.800.525.7048

--------------------------------------------------------------------------------
TELEPHONE TRANSACTIONS
Mon-Fri 8am-9pm ET, Sat 10am-4pm ET
1.800.852.8457

--------------------------------------------------------------------------------
PHONELINK
24-hr automated information and automated transactions
1.800.533.3310

--------------------------------------------------------------------------------
TELECOMMUNICATIONS DEVICE FOR THE DEAF (TDD)
Mon-Fri 9am-6:30pm ET
1.800.843.4461

--------------------------------------------------------------------------------
OPPENHEIMERFUNDS INFORMATION HOTLINE
24 hours a day, timely and insightful
messages on the economy and issues that may affect your investments
1.800.835.3104

--------------------------------------------------------------------------------
TRANSFER AND SHAREHOLDER SERVICING AGENT
OppenheimerFunds Services
P.O. BOX 5270, DENVER, CO 80217-5270

--------------------------------------------------------------------------------
TICKER SYMBOLS Class A: OPOCX Class B: ODIBX Class C: ODICX   Class Y: ODIYX
--------------------------------------------------------------------------------
1. At times this website may be inaccessible or its transaction feature may be
unavailable.

RA0500.001.0900  November 29, 2000                       [OPPENHEIMERFUNDS LOGO]


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