UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM N-CSR

              CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
                              INVESTMENT COMPANIES

                   Investment Company Act file number 811-3105
                                                      --------

                      OPPENHEIMER CAPITAL APPRECIATION FUND
                      -------------------------------------
               (Exact name of registrant as specified in charter)

             6803 SOUTH TUCSON WAY, CENTENNIAL, COLORADO 80112-3924
             ------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                              Robert G. Zack, Esq.
                             OppenheimerFunds, Inc.
            TWO WORLD FINANCIAL CENTER, NEW YORK, NEW YORK 10281-1008
            ---------------------------------------------------------
                     (Name and address of agent for service)

       Registrant's telephone number, including area code: (303) 768-3200
                                                           --------------

                       Date of fiscal year end: AUGUST 31
                                                ---------

                   Date of reporting period: FEBRUARY 28, 2007

ITEM 1.  REPORTS TO STOCKHOLDERS.


TOP HOLDINGS AND ALLOCATIONS
- --------------------------------------------------------------------------------

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

TOP TEN COMMON STOCK INDUSTRIES
- --------------------------------------------------------------------------------
Communications Equipment                                                    7.9%
- --------------------------------------------------------------------------------
Internet Software & Services                                                6.7
- --------------------------------------------------------------------------------
Software                                                                    5.8
- --------------------------------------------------------------------------------
Capital Markets                                                             5.5
- --------------------------------------------------------------------------------
Aerospace & Defense                                                         5.4
- --------------------------------------------------------------------------------
Pharmaceuticals                                                             4.5
- --------------------------------------------------------------------------------
IT Services                                                                 4.4
- --------------------------------------------------------------------------------
Semiconductors & Semiconductor Equipment                                    4.2
- --------------------------------------------------------------------------------
Energy Equipment & Services                                                 4.1
- --------------------------------------------------------------------------------
Insurance                                                                   3.7

Portfolio holdings and allocations are subject to change. Percentages are as of
February 28, 2007, and are based on net assets.

TOP TEN COMMON STOCK HOLDINGS
- --------------------------------------------------------------------------------
Cisco Systems, Inc.                                                         3.2%
- --------------------------------------------------------------------------------
Google, Inc., Cl. A                                                         2.9
- --------------------------------------------------------------------------------
Monsanto Co.                                                                2.2
- --------------------------------------------------------------------------------
eBay, Inc.                                                                  1.9
- --------------------------------------------------------------------------------
Procter & Gamble Co. (The)                                                  1.9
- --------------------------------------------------------------------------------
Yahoo!, Inc.                                                                1.9
- --------------------------------------------------------------------------------
Schlumberger Ltd.                                                           1.8
- --------------------------------------------------------------------------------
Corning, Inc.                                                               1.6
- --------------------------------------------------------------------------------
Affiliated Computer Services, Inc., Cl. A                                   1.6
- --------------------------------------------------------------------------------
Apple, Inc.                                                                 1.6

Portfolio holdings and allocations are subject to change. Percentages are as of
February 28, 2007, and are based on net assets.

For up-to-date Top 10 Fund holdings, please visit www.oppenheimerfunds.com.

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


                    9 | OPPENHEIMER CAPITAL APPRECIATION FUND



TOP HOLDINGS AND ALLOCATIONS
- --------------------------------------------------------------------------------

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

SECTOR ALLOCATION

 [THE FOLLOWING TABLE WAS REPRESENTED BY A PIE CHART IN THE PRINTED MATERIAL.]

Information Technology                                      32.9%
   Communications Equipment                                  7.9
   Internet Software & Services                              6.7
   Software                                                  5.8
   IT Services                                               4.5
   Semiconductors & Semiconductor Equipment                  4.3
   Computers & Peripherals                                   3.7
Health Care                                                 14.5
Consumer Discretionary                                      11.5
Financials                                                  11.2
Industrials                                                  9.7
Consumer Staples                                             7.1
Energy                                                       6.6
Materials                                                    3.5
Telecommunication Services                                   3.0

Portfolio holdings and allocations are subject to change. Percentages are as of
February 28, 2007, and are based on the total market value of common stocks.

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


                   10 | OPPENHEIMER CAPITAL APPRECIATION FUND



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

Total returns include changes in share price and reinvestment of dividends and
capital gains distributions in a hypothetical investment for the periods shown.
Cumulative total returns are not annualized. The Fund's total returns shown do
not reflect the deduction 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. INVESTORS SHOULD CONSIDER THE
FUND'S INVESTMENT OBJECTIVES, RISKS, AND OTHER CHARGES AND EXPENSES CAREFULLY
BEFORE INVESTING. THE FUND'S PROSPECTUS CONTAINS THIS AND OTHER INFORMATION
ABOUT THE FUND, AND MAY BE OBTAINED BY ASKING YOUR FINANCIAL ADVISOR, CALLING US
AT 1.800.525.7048 OR VISITING OUR WEBSITE AT WWW.OPPENHEIMERFUNDS.COM. READ THE
PROSPECTUS CAREFULLY BEFORE INVESTING.

The Fund's investment strategy and focus can change over time. The mention of
specific fund holdings does not constitute a recommendation by OppenheimerFunds,
Inc.

CLASS A shares of the Fund were first publicly offered on 1/22/81. Class A
returns include the current maximum initial sales charge of 5.75%.

CLASS B shares of the Fund were first publicly offered on 11/1/95. 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 10-year 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 12/1/93. 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 N shares of the Fund were first publicly offered on 3/1/01. Class N shares
are offered only through retirement plans. Unless otherwise noted, Class N
returns include the contingent deferred sales charge of 1% for the 1-year
period. Class N shares are subject to an annual 0.25% asset-based sales charge.


                   11 | OPPENHEIMER CAPITAL APPRECIATION FUND



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

CLASS Y shares of the Fund were first publicly offered on 11/3/97. Class Y
shares are offered only to certain institutional investors under special
agreements with the Distributor.

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


                   12 | OPPENHEIMER CAPITAL APPRECIATION FUND



FUND EXPENSES
- --------------------------------------------------------------------------------

FUND EXPENSES. As a shareholder of the Fund, you incur two types of costs: (1)
transaction costs, which may include sales charges (loads) on purchase payments,
contingent deferred sales charges on redemptions; and redemption fees, if any;
and (2) ongoing costs, including management fees; distribution and service fees;
and other Fund expenses. These examples are intended to help you understand your
ongoing costs (in dollars) of investing in the Fund and to compare these costs
with the ongoing costs of investing in other mutual funds.

The examples are based on an investment of $1,000.00 invested at the beginning
of the period and held for the entire 6-month period ended February 28, 2007.

ACTUAL EXPENSES. The "actual" lines of the table provide information about
actual account values and actual expenses. You may use the information on this
line for the class of shares you hold, together with the amount you invested, to
estimate the expense that you paid over the period. Simply divide your account
value by $1,000.00 (for example, an $8,600.00 account value divided by $1,000.00
= 8.60), then multiply the result by the number in the "actual" line under the
heading entitled "Expenses Paid During Period" to estimate the expenses you paid
on your account during this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES. The "hypothetical" lines of the
table provide information about hypothetical account values and hypothetical
expenses based on the Fund's actual expense ratio for each class of shares, and
an assumed rate of return of 5% per year before expenses, which is not the
Fund's actual return. The hypothetical account values and expenses may not be
used to estimate the actual ending account balance or expenses you paid for the
period. You may use this information to compare the ongoing costs of investing
in the Fund and other funds. To do so, compare this 5% hypothetical example for
the class of shares you hold with the 5% hypothetical examples that appear in
the shareholder reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your
ongoing costs only and do not reflect any transactional costs, such as front-end
or contingent deferred sales charges (loads), or a $12.00 fee imposed annually
on accounts valued at less than $500.00 (subject to exceptions described in


                   13 | OPPENHEIMER CAPITAL APPRECIATION FUND



FUND EXPENSES
- --------------------------------------------------------------------------------

the Statement of Additional Information). Therefore, the "hypothetical" lines of
the table are useful in comparing ongoing costs only, and will not help you
determine the relative total costs of owning different funds. In addition, if
these transactional costs were included, your costs would have been higher.

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

                                   BEGINNING     ENDING        EXPENSES
                                   ACCOUNT       ACCOUNT       PAID DURING
                                   VALUE         VALUE         6 MONTHS ENDED
                                   (9/1/06)      (2/28/07)     FEBRUARY 28, 2007
- --------------------------------------------------------------------------------
Class A Actual                     $ 1,000.00    $ 1,082.40    $  5.59
- --------------------------------------------------------------------------------
Class A Hypothetical                 1,000.00      1,019.44       5.42
- --------------------------------------------------------------------------------
Class B Actual                       1,000.00      1,078.10       9.83
- --------------------------------------------------------------------------------
Class B Hypothetical                 1,000.00      1,015.37       9.54
- --------------------------------------------------------------------------------
Class C Actual                       1,000.00      1,078.20       9.47
- --------------------------------------------------------------------------------
Class C Hypothetical                 1,000.00      1,015.72       9.19
- --------------------------------------------------------------------------------
Class N Actual                       1,000.00      1,080.50       7.30
- --------------------------------------------------------------------------------
Class N Hypothetical                 1,000.00      1,017.80       7.08
- --------------------------------------------------------------------------------
Class Y Actual                       1,000.00      1,084.40       3.42
- --------------------------------------------------------------------------------
Class Y Hypothetical                 1,000.00      1,021.52       3.31

Hypothetical assumes 5% annual return before expenses.

Expenses are equal to the Fund's annualized expense ratio for that class,
multiplied by the average account value over the period, multiplied by 181/365
(to reflect the one-half year period). Those annualized expense ratios,
excluding indirect expenses from affiliated fund, based on the 6-month period
ended February 28, 2007 are as follows:

CLASS            EXPENSE RATIOS
- -------------------------------
Class A               1.08%
- -------------------------------
Class B               1.90
- -------------------------------
Class C               1.83
- -------------------------------
Class N               1.41
- -------------------------------
Class Y               0.66

The expense ratios reflect voluntary waivers or reimbursements of expenses by
the Fund's Manager that can be terminated at any time, without advance notice.
The "Financial Highlights" tables in the Fund's financial statements, included
in this report, also show the gross expense ratios, without such waivers or
reimbursements.


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

                   14 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF INVESTMENTS  February 28, 2007 / Unaudited
- --------------------------------------------------------------------------------

                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
COMMON STOCKS--99.2%
- --------------------------------------------------------------------------------
CONSUMER DISCRETIONARY--11.4%
- --------------------------------------------------------------------------------
HOTELS, RESTAURANTS & LEISURE--1.9%
Las Vegas Sands Corp. 1                              669,550   $     57,768,774
- --------------------------------------------------------------------------------
Panera Bread Co., Cl. A 1                            598,270         36,632,072
- --------------------------------------------------------------------------------
Starbucks Corp. 1                                  1,674,200         51,732,780
                                                               -----------------
                                                                    146,133,626

- --------------------------------------------------------------------------------
HOUSEHOLD DURABLES--0.6%
Harman International Industries, Inc.                497,490         49,331,108
- --------------------------------------------------------------------------------
MEDIA--1.7%
Comcast Corp., Cl. A Special, Non-Vtg. 1           3,039,653         77,359,156
- --------------------------------------------------------------------------------
XM Satellite Radio Holdings, Inc., Cl. A 1         4,021,650         57,750,894
                                                               -----------------
                                                                    135,110,050

- --------------------------------------------------------------------------------
MULTILINE RETAIL--2.9%
J.C. Penney Co., Inc. (Holding Co.)                1,013,870         82,234,996
- --------------------------------------------------------------------------------
Kohl's Corp. 1                                       822,620         56,752,554
- --------------------------------------------------------------------------------
Target Corp.                                       1,406,600         86,548,098
                                                               -----------------
                                                                    225,535,648

- --------------------------------------------------------------------------------
SPECIALTY RETAIL--3.2%
Best Buy Co., Inc.                                 1,254,540         58,298,474
- --------------------------------------------------------------------------------
Lowe's Cos., Inc.                                  1,162,980         37,866,629
- --------------------------------------------------------------------------------
Staples, Inc.                                      4,031,490        104,899,370
- --------------------------------------------------------------------------------
Tiffany & Co.                                        294,080         12,804,243
- --------------------------------------------------------------------------------
TJX Cos., Inc. (The)                               1,130,580         31,090,950
                                                               -----------------
                                                                    244,959,666

- --------------------------------------------------------------------------------
TEXTILES, APPAREL & LUXURY GOODS--1.1%
Polo Ralph Lauren Corp., Cl. A                     1,010,070         87,855,889
- --------------------------------------------------------------------------------
CONSUMER STAPLES--7.1%
- --------------------------------------------------------------------------------
BEVERAGES--1.1%
PepsiCo, Inc.                                      1,316,010         83,106,031
- --------------------------------------------------------------------------------
FOOD & STAPLES RETAILING--0.7%
Costco Wholesale Corp.                               209,460         11,706,719

                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
FOOD & STAPLES RETAILING Continued
CVS Corp.                                          1,384,430   $     43,484,946
                                                               -----------------
                                                                     55,191,665

- --------------------------------------------------------------------------------
FOOD PRODUCTS--2.2%
Cadbury Schweppes plc                              4,328,520         46,334,795
- --------------------------------------------------------------------------------
Nestle SA                                            327,863        122,128,160
                                                               -----------------
                                                                    168,462,955

- --------------------------------------------------------------------------------
HOUSEHOLD PRODUCTS--3.1%
Procter & Gamble Co. (The)                         2,310,790        146,712,057
- --------------------------------------------------------------------------------
Reckitt Benckiser plc                              1,922,269         96,806,272
                                                               -----------------
                                                                    243,518,329

- --------------------------------------------------------------------------------
ENERGY--6.5%
- --------------------------------------------------------------------------------
ENERGY EQUIPMENT & SERVICES--4.1%
Halliburton Co.                                    2,530,040         78,127,635
- --------------------------------------------------------------------------------
Schlumberger Ltd.                                  2,224,200        139,679,760
- --------------------------------------------------------------------------------
Smith International, Inc.                          2,406,050         98,648,050
                                                               -----------------
                                                                    316,455,445

- --------------------------------------------------------------------------------
OIL & GAS--2.4%
Kinder Morgan Management LLC 1                       983,525         49,186,085
- --------------------------------------------------------------------------------
Occidental Petroleum Corp.                         1,537,770         71,014,219
- --------------------------------------------------------------------------------
XTO Energy, Inc.                                   1,320,100         68,196,366
                                                               -----------------
                                                                    188,396,670

- --------------------------------------------------------------------------------
FINANCIALS--11.1%
- --------------------------------------------------------------------------------
CAPITAL MARKETS--5.5%
Franklin Resources, Inc.                             446,830         52,453,374
- --------------------------------------------------------------------------------
Goldman Sachs Group, Inc. (The)                      399,100         80,458,560
- --------------------------------------------------------------------------------
Legg Mason, Inc.                                     991,880        101,905,751
- --------------------------------------------------------------------------------
Nomura Securities Co. Ltd.                         2,040,900         44,104,279


                   15 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF INVESTMENTS  Unaudited / Continued
- --------------------------------------------------------------------------------

                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
CAPITAL MARKETS Continued
Northern Trust Corp.                                 999,630   $     60,277,689
- --------------------------------------------------------------------------------
UBS AG                                             1,464,524         86,453,966
                                                               -----------------
                                                                    425,653,619

- --------------------------------------------------------------------------------
DIVERSIFIED FINANCIAL SERVICES--1.6%
Chicago Mercantile Exchange (The)                    229,390        123,671,031
- --------------------------------------------------------------------------------
INSURANCE--3.7%
American International Group, Inc.                 1,719,270        115,363,017
- --------------------------------------------------------------------------------
Hartford Financial Services Group, Inc. (The)        617,090         58,352,030
- --------------------------------------------------------------------------------
Prudential Financial, Inc.                         1,249,210        113,603,157
                                                               -----------------
                                                                    287,318,204

- --------------------------------------------------------------------------------
REAL ESTATE MANAGEMENT & DEVELOPMENT--0.3%
CB Richard Ellis Group, Inc., Cl. A 1                837,870         27,917,828
- --------------------------------------------------------------------------------
HEALTH CARE--14.4%
- --------------------------------------------------------------------------------
BIOTECHNOLOGY--3.0%
Celgene Corp. 1                                    1,095,830         58,407,739
- --------------------------------------------------------------------------------
Genentech, Inc. 1                                    933,220         78,735,771
- --------------------------------------------------------------------------------
Genzyme Corp. (General Division) 1                   697,400         43,099,320
- --------------------------------------------------------------------------------
Gilead Sciences, Inc. 1                              739,060         52,887,134
                                                               -----------------
                                                                    233,129,964

- --------------------------------------------------------------------------------
HEALTH CARE EQUIPMENT & SUPPLIES--1.5%
St. Jude Medical, Inc. 1                           1,497,100         59,360,015
- --------------------------------------------------------------------------------
Varian Medical Systems, Inc. 1                     1,214,770         55,818,682
                                                               -----------------
                                                                    115,178,697

- --------------------------------------------------------------------------------
HEALTH CARE PROVIDERS & SERVICES--3.1%
Medco Health Solutions, Inc. 1                     1,119,120         75,663,703
- --------------------------------------------------------------------------------
Schein (Henry), Inc. 1                               639,650         33,370,541
- --------------------------------------------------------------------------------
UnitedHealth Group, Inc.                           1,283,540         67,000,788

                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
HEALTH CARE PROVIDERS & SERVICES Continued
WellPoint, Inc. 1                                    757,640   $     60,149,040
                                                               -----------------
                                                                    236,184,072

- --------------------------------------------------------------------------------
LIFE SCIENCES TOOLS & SERVICES--2.3%
Covance, Inc. 1                                    1,121,290         69,138,741
- --------------------------------------------------------------------------------
Thermo Fisher Scientific, Inc. 1                   2,447,140        110,782,028
                                                               -----------------
                                                                    179,920,769

- --------------------------------------------------------------------------------
PHARMACEUTICALS--4.5%
Allergan, Inc.                                       379,080         42,347,027
- --------------------------------------------------------------------------------
Novartis AG 2                                      2,166,687        120,618,406
- --------------------------------------------------------------------------------
Roche Holdings AG 2                                  666,477        118,880,948
- --------------------------------------------------------------------------------
Sepracor, Inc. 1                                     623,390         32,765,378
- --------------------------------------------------------------------------------
Shionogi & Co. Ltd.                                1,878,000         36,319,737
                                                               -----------------
                                                                    350,931,496

- --------------------------------------------------------------------------------
INDUSTRIALS--9.7%
- --------------------------------------------------------------------------------
AEROSPACE & DEFENSE--5.4%
Boeing Co.                                           722,810         63,079,629
- --------------------------------------------------------------------------------
Empresa Brasileira de Aeronautica SA, ADR          1,547,200         70,165,520
- --------------------------------------------------------------------------------
General Dynamics Corp.                               986,820         75,452,257
- --------------------------------------------------------------------------------
Lockheed Martin Corp.                                653,280         63,551,078
- --------------------------------------------------------------------------------
Rockwell Collins, Inc.                               586,660         38,414,497
- --------------------------------------------------------------------------------
United Technologies Corp.                          1,663,840        109,197,819
                                                               -----------------
                                                                    419,860,800

- --------------------------------------------------------------------------------
COMMERCIAL SERVICES & SUPPLIES--1.1%
Corporate Executive Board Co. (The)                1,035,192         80,548,290
- --------------------------------------------------------------------------------
ELECTRICAL EQUIPMENT--0.5%
ABB Ltd.                                           2,190,527         36,548,697
- --------------------------------------------------------------------------------
INDUSTRIAL CONGLOMERATES--1.3%
General Electric Co.                               2,957,410        103,272,757


                   16 | OPPENHEIMER CAPITAL APPRECIATION FUND



                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
MACHINERY--0.9%
Danaher Corp.                                        939,330   $     67,293,601
- --------------------------------------------------------------------------------
TRADING COMPANIES & DISTRIBUTORS--0.5%
Fastenal Co.                                       1,181,240         41,662,335
- --------------------------------------------------------------------------------
INFORMATION TECHNOLOGY--32.6%
- --------------------------------------------------------------------------------
COMMUNICATIONS EQUIPMENT--7.9%
Cisco Systems, Inc. 1                              9,433,410        244,702,655
- --------------------------------------------------------------------------------
Corning, Inc. 1                                    6,107,130        125,990,092
- --------------------------------------------------------------------------------
F5 Networks, Inc. 1                                  680,620         49,426,624
- --------------------------------------------------------------------------------
QUALCOMM, Inc.                                     2,188,320         88,145,530
- --------------------------------------------------------------------------------
Research in Motion Ltd. 1                            186,310         26,197,049
- --------------------------------------------------------------------------------
Telefonaktiebolaget LM Ericsson, Sponsored ADR     2,151,700         76,944,792
                                                               -----------------
                                                                    611,406,742

- --------------------------------------------------------------------------------
COMPUTERS & PERIPHERALS--3.6%
Apple, Inc. 1                                      1,466,700        124,097,487
- --------------------------------------------------------------------------------
EMC Corp. 1                                        7,273,500        101,465,325
- --------------------------------------------------------------------------------
Network Appliance, Inc. 1                          1,462,190         56,542,887
                                                               -----------------
                                                                    282,105,699

- --------------------------------------------------------------------------------
INTERNET SOFTWARE & SERVICES--6.7%
eBay, Inc. 1                                       4,618,230        148,060,454
- --------------------------------------------------------------------------------
Google, Inc., Cl. A 1                                494,620        222,306,959
- --------------------------------------------------------------------------------
Yahoo!, Inc. 1                                     4,741,630        146,326,702
                                                               -----------------
                                                                    516,694,115

- --------------------------------------------------------------------------------
IT SERVICES--4.4%
Affiliated Computer Services, Inc., Cl. A 1        2,396,010        124,520,640
- --------------------------------------------------------------------------------
Alliance Data Systems Corp. 1                        812,680         48,557,630
- --------------------------------------------------------------------------------
Automatic Data Processing, Inc.                    1,912,340         95,215,409
- --------------------------------------------------------------------------------
Cognizant Technology Solutions Corp. 1               834,950         75,312,490
                                                               -----------------
                                                                    343,606,169

                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT--4.2%
Advanced Micro Devices, Inc. 1                     2,695,310   $     40,591,369
- --------------------------------------------------------------------------------
ASML Holding NV 1                                  1,687,700         41,483,666
- --------------------------------------------------------------------------------
Broadcom Corp., Cl. A 1                            3,139,280        107,018,055
- --------------------------------------------------------------------------------
Microchip Technology, Inc.                         1,829,450         65,128,420
- --------------------------------------------------------------------------------
SiRF Technology Holdings, Inc. 1                   1,141,460         32,634,341
- --------------------------------------------------------------------------------
Texas Instruments, Inc.                            1,372,730         42,499,721
                                                               -----------------
                                                                    329,355,572

- --------------------------------------------------------------------------------
SOFTWARE--5.8%
Adobe Systems, Inc. 1                              2,596,188        101,900,379
- --------------------------------------------------------------------------------
Amdocs Ltd. 1                                      2,428,890         84,063,883
- --------------------------------------------------------------------------------
Autodesk, Inc. 1                                   1,963,520         80,798,848
- --------------------------------------------------------------------------------
Electronic Arts, Inc. 1                              994,950         50,165,379
- --------------------------------------------------------------------------------
Microsoft Corp.                                    2,737,811         77,124,136
- --------------------------------------------------------------------------------
Red Hat, Inc. 1                                    2,365,770         53,111,537
                                                               -----------------
                                                                    447,164,162

- --------------------------------------------------------------------------------
MATERIALS--3.5%
- --------------------------------------------------------------------------------
CHEMICALS--3.5%
Monsanto Co.                                       3,197,660        168,484,705
- --------------------------------------------------------------------------------
Praxair, Inc.                                      1,646,900        101,597,261
                                                               -----------------
                                                                    270,081,966

- --------------------------------------------------------------------------------
TELECOMMUNICATION SERVICES--2.9%
- --------------------------------------------------------------------------------
WIRELESS TELECOMMUNICATION SERVICES--2.9%
America Movil SA de CV, Series L                   1,213,800         53,164,440
- --------------------------------------------------------------------------------
American Tower Corp. 1                             2,008,130         77,794,956
- --------------------------------------------------------------------------------
Crown Castle International Corp. 1                 1,500,620         49,160,311
- --------------------------------------------------------------------------------
NII Holdings, Inc. 1                                 672,890         47,667,527
                                                               -----------------
                                                                    227,787,234
                                                               -----------------
Total Common Stocks
(Cost $6,086,735,483)                                             7,701,350,901


                   17 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF INVESTMENTS  Unaudited / Continued
- --------------------------------------------------------------------------------

                                                                          VALUE
                                                      SHARES         SEE NOTE 1
- --------------------------------------------------------------------------------
INVESTMENTS IN AFFILIATED COMPANIES--1.1%
- --------------------------------------------------------------------------------
Oppenheimer Institutional
Money Market Fund,
Cl. E, 5.25% 3,4
(Cost $81,759,886)                                81,759,886   $     81,759,886
- --------------------------------------------------------------------------------
Total Investments, at Value
(excluding Investments Purchased
with Cash Collateral from
Securities Loaned)
(Cost $6,168,495,369)                                             7,783,110,787

                                                   PRINCIPAL
                                                      AMOUNT
- --------------------------------------------------------------------------------
INVESTMENTS PURCHASED WITH CASH COLLATERAL FROM
SECURITIES LOANED--1.3% 5
- --------------------------------------------------------------------------------
JOINT REPURCHASE AGREEMENTS--1.3%
Undivided interest of 0.23% in joint repurchase
agreement (Principal Amount/Value
$500,000.000, with a maturity value
of $500,074,028) with Nomura
Securities, 5.33%, dated 2/28/07,
to be repurchased at $1,157,421
on 3/1/07, collateralized by
U.S. Agency Mortgages,
5.50%-6%, 1/1/36-6/1/36,
with a value of
$510,000,000                                    $ 11,157,250          1,157,250

                                                   PRINCIPAL              VALUE
                                                      AMOUNT         SEE NOTE 1
- --------------------------------------------------------------------------------
JOINT REPURCHASE AGREEMENTS Continued
Undivided interest of 13.33% in joint repurchase
agreement (Principal Amount/Value $750,000,000,
with a maturity value of $750,111,250) with
Morgan Stanley, 5.34%, dated 2/28/07, to
be repurchased at $100,014,833 on
3/1/07, collateralized by U.S. Agency
Mortgages, 0.00%-6.05%,
3/30/07-10/15/20,
with a value of
$765,730,799                                    $100,000,000   $    100,000,000
- --------------------------------------------------------------------------------
Total Investments Purchased with
Cash Collateral from Securities Loaned
(Cost $101,157,250)                                                 101,157,250

- --------------------------------------------------------------------------------
TOTAL INVESTMENTS, AT VALUE
(COST $6,269,652,619)                                  101.6%     7,884,268,037
- --------------------------------------------------------------------------------
LIABILITIES IN EXCESS OF OTHER ASSETS                   (1.6)      (120,590,717)
                                                --------------------------------
NET ASSETS                                             100.0%  $  7,763,677,320
                                                ================================

FOOTNOTES TO STATEMENT OF INVESTMENTS

1. Non-income producing security.

2. Partial or fully-loaned security. See Note 6 of accompanying Notes.

3. Is or was an affiliate, as defined in the Investment Company Act of 1940, at
or during the period ended February 28, 2007 by virtue of the Fund owning at
least 5% of the voting securities of the issuer or as a result of the Fund and
the issuer having the same investment advisor. Transactions during the period in
which the issuer was an affiliate are as follows:



                                                    SHARES                                     SHARES
                                                AUGUST 31,         GROSS         GROSS   FEBRUARY 28,
                                                      2006     ADDITIONS    REDUCTIONS           2007
- -----------------------------------------------------------------------------------------------------
                                                                             
Oppenheimer Institutional Money Market Fund,
Cl. E, 5.25%                                            --   581,646,882   499,886,996     81,759,886




                                                                                 VALUE       DIVIDEND
                                                                            SEE NOTE 1         INCOME
- -----------------------------------------------------------------------------------------------------
                                                                                   
Oppenheimer Institutional Money Market Fund,
Cl. E, 5.25%                                                               $81,759,886   $  1,411,538


4. Rate shown is the 7-day yield as of February 28, 2007.

5. The security/securities have been segregated to satisfy the forward
commitment to return the cash collateral received in securities lending
transactions upon the borrower's return of the securities loaned. See Note 6 of
accompanying Notes.

SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   18 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF ASSETS AND LIABILITIES  Unaudited
- --------------------------------------------------------------------------------



February 28, 2007
- -------------------------------------------------------------------------------------------------------
                                                                                    
ASSETS
- -------------------------------------------------------------------------------------------------------
Investments, at value--see accompanying statement of investments:
Unaffiliated companies (cost $6,187,892,733)                                           $ 7,802,508,151
Affiliated companies (cost $81,759,886)                                                     81,759,886
                                                                                       ----------------
                                                                                         7,884,268,037
- -------------------------------------------------------------------------------------------------------
Cash                                                                                         1,115,208
- -------------------------------------------------------------------------------------------------------
Receivables and other assets:
Investments sold                                                                            52,163,864
Interest and dividends                                                                       6,519,473
Shares of beneficial interest sold                                                           1,911,366
Other                                                                                          505,875
                                                                                       ----------------
Total assets                                                                             7,946,483,823

- -------------------------------------------------------------------------------------------------------
LIABILITIES
- -------------------------------------------------------------------------------------------------------
Return of collateral for securities loaned                                                 101,157,250
- -------------------------------------------------------------------------------------------------------
Payables and other liabilities:
Investments purchased                                                                       60,740,114
Shares of beneficial interest redeemed                                                      14,284,250
Distribution and service plan fees                                                           2,863,359
Trustees' compensation                                                                       1,580,197
Transfer and shareholder servicing agent fees                                                1,459,022
Shareholder communications                                                                     595,591
Other                                                                                          126,720
                                                                                       ----------------
Total liabilities                                                                          182,806,503

- -------------------------------------------------------------------------------------------------------
NET ASSETS                                                                             $ 7,763,677,320
                                                                                       ================

- -------------------------------------------------------------------------------------------------------
COMPOSITION OF NET ASSETS
- -------------------------------------------------------------------------------------------------------
Par value of shares of beneficial interest                                             $       169,245
- -------------------------------------------------------------------------------------------------------
Additional paid-in capital                                                               6,444,914,391
- -------------------------------------------------------------------------------------------------------
Accumulated net investment loss                                                            (20,629,621)
- -------------------------------------------------------------------------------------------------------
Accumulated net realized loss on investments and foreign currency transactions            (275,466,586)
- -------------------------------------------------------------------------------------------------------
Net unrealized appreciation on investments and translation of assets and liabilities
denominated in foreign currencies                                                        1,614,689,891
                                                                                       ----------------
NET ASSETS                                                                             $ 7,763,677,320
                                                                                       ================



                   19 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF ASSETS AND LIABILITIES  Unaudited / Continued
- --------------------------------------------------------------------------------


- --------------------------------------------------------------------------------------------------------
                                                                                               
NET ASSET VALUE PER SHARE
- --------------------------------------------------------------------------------------------------------
Class A Shares:
Net asset value and redemption price per share (based on net assets of $5,202,959,400
and 111,590,397 shares of beneficial interest outstanding)                                        $46.63
Maximum offering price per share (net asset value plus sales charge of 5.75% of offering price)   $49.47
- --------------------------------------------------------------------------------------------------------
Class B Shares:
Net asset value, redemption price (excludes applicable contingent deferred sales charge)
and offering price per share (based on net assets of $803,497,468 and 18,884,024 shares
of beneficial interest outstanding)                                                               $42.55
- --------------------------------------------------------------------------------------------------------
Class C Shares:
Net asset value, redemption price (excludes applicable contingent deferred sales charge)
and offering price per share (based on net assets of $661,970,168 and 15,686,359 shares
of beneficial interest outstanding)                                                               $42.20
- --------------------------------------------------------------------------------------------------------
Class N Shares:
Net asset value, redemption price (excludes applicable contingent deferred sales charge)
and offering price per share (based on net assets of $258,723,948 and 5,635,614 shares
of beneficial interest outstanding)                                                               $45.91
- --------------------------------------------------------------------------------------------------------
Class Y Shares:
Net asset value, redemption price and offering price per share (based on net assets
of $836,526,336 and 17,448,430 shares of beneficial interest outstanding)                         $47.94


SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   20 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF OPERATIONS  Unaudited
- --------------------------------------------------------------------------------



For the Six Months Ended February 28, 2007
- ------------------------------------------------------------------------------------
                                                                    
INVESTMENT INCOME
- ------------------------------------------------------------------------------------
Dividends:
Unaffiliated companies (net of foreign withholding taxes of $174,487)  $ 25,321,186
Affiliated companies                                                      1,411,538
- ------------------------------------------------------------------------------------
Interest                                                                    738,949
- ------------------------------------------------------------------------------------
Portfolio lending fees                                                        2,170
- ------------------------------------------------------------------------------------
Other income                                                                205,526
                                                                       -------------
Total investment income                                                  27,679,369

- ------------------------------------------------------------------------------------
EXPENSES
- ------------------------------------------------------------------------------------
Management fees                                                          22,281,686
- ------------------------------------------------------------------------------------
Distribution and service plan fees:
Class A                                                                   6,419,466
Class B                                                                   4,178,481
Class C                                                                   3,320,563
Class N                                                                     648,115
- ------------------------------------------------------------------------------------
Transfer and shareholder servicing agent fees:
Class A                                                                   6,381,768
Class B                                                                   1,144,869
Class C                                                                     775,926
Class N                                                                     417,379
Class Y                                                                     362,053
- ------------------------------------------------------------------------------------
Shareholder communications:
Class A                                                                     353,640
Class B                                                                     172,473
Class C                                                                      58,590
Class N                                                                       8,903
- ------------------------------------------------------------------------------------
Trustees' compensation                                                      369,987
- ------------------------------------------------------------------------------------
Custodian fees and expenses                                                  73,663
- ------------------------------------------------------------------------------------
Other                                                                        55,479
                                                                       -------------
Total expenses                                                           47,023,041
Less reduction to custodian expenses                                         (3,353)
Less waivers and reimbursements of expenses                                 (26,613)
                                                                       -------------
Net expenses                                                             46,993,075

- ------------------------------------------------------------------------------------
NET INVESTMENT LOSS                                                     (19,313,706)



                   21 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENT OF OPERATIONS  Unaudited / Continued
- --------------------------------------------------------------------------------


- ---------------------------------------------------------------------------------------
                                                                       
REALIZED AND UNREALIZED GAIN
- ---------------------------------------------------------------------------------------
Net realized gain on:
Investments                                                               $ 197,251,345
Foreign currency transactions                                                 2,898,920
                                                                          -------------
Net realized gain                                                           200,150,265
- ---------------------------------------------------------------------------------------
Net change in unrealized appreciation on:
Investments                                                                 431,335,712
Translation of assets and liabilities denominated in foreign currencies       4,557,505
                                                                          -------------
Net change in unrealized appreciation                                       435,893,217

- ---------------------------------------------------------------------------------------
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS                      $ 616,729,776
                                                                          =============


SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   22 | OPPENHEIMER CAPITAL APPRECIATION FUND



STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------



                                                                                    SIX MONTHS               YEAR
                                                                                         ENDED              ENDED
                                                                             FEBRUARY 28, 2007         AUGUST 31,
                                                                                   (UNAUDITED)               2006
- ------------------------------------------------------------------------------------------------------------------
                                                                                           
OPERATIONS
- ------------------------------------------------------------------------------------------------------------------
Net investment loss                                                          $     (19,313,706)  $    (34,347,551)
- ------------------------------------------------------------------------------------------------------------------
Net realized gain                                                                  200,150,265         23,209,078
- ------------------------------------------------------------------------------------------------------------------
Net change in unrealized appreciation                                              435,893,217        388,510,702
                                                                             -------------------------------------
Net increase in net assets resulting from operations                               616,729,776        377,372,229

- ------------------------------------------------------------------------------------------------------------------
DIVIDENDS AND/OR DISTRIBUTIONS TO SHAREHOLDERS
- ------------------------------------------------------------------------------------------------------------------
Dividends from net investment income:
- ------------------------------------------------------------------------------------------------------------------
Class A                                                                                     --        (32,952,692)
Class B                                                                                     --                 --
Class C                                                                                     --                 --
Class N                                                                                     --           (755,526)
Class Y                                                                                     --        (11,953,955)
                                                                             -------------------------------------
                                                                                            --        (45,662,173)

- ------------------------------------------------------------------------------------------------------------------
BENEFICIAL INTEREST TRANSACTIONS
- ------------------------------------------------------------------------------------------------------------------
Net increase (decrease) in net assets resulting from
beneficial interest transactions:
- ------------------------------------------------------------------------------------------------------------------
Class A                                                                           (501,282,438)      (573,549,510)
Class B                                                                           (112,142,641)      (228,134,092)
Class C                                                                            (34,484,780)       (70,708,579)
Class N                                                                            (11,570,753)        (4,627,002)
Class Y                                                                            130,696,522       (577,739,853)
                                                                             -------------------------------------
                                                                                  (528,784,090)    (1,454,759,036)

- ------------------------------------------------------------------------------------------------------------------
NET ASSETS
- ------------------------------------------------------------------------------------------------------------------
Total increase (decrease)                                                           87,945,686     (1,123,048,980)
- ------------------------------------------------------------------------------------------------------------------
Beginning of period                                                              7,675,731,634      8,798,780,614
                                                                             -------------------------------------

End of period (including accumulated net investment loss of $20,629,621
and $1,315,915, respectively)                                                $   7,763,677,320   $  7,675,731,634
                                                                             =====================================


SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   23 | OPPENHEIMER CAPITAL APPRECIATION FUND



FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------



                                        SIX MONTHS                                                                       YEAR
                                             ENDED                                                                      ENDED
                                 FEBRUARY 28, 2007                                                                 AUGUST 31,
CLASS A                                (UNAUDITED)            2006          2005           2004            2003          2002
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                 
PER SHARE OPERATING DATA
- ----------------------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of
period                                  $    43.08      $    41.45    $    37.57     $    35.39      $    30.72    $    41.11
- ----------------------------------------------------------------------------------------------------------------------------------
Income (loss) from investment
operations:
Net investment income (loss)                  (.08) 1         (.12) 1        .26 1,2        .01            (.05)         (.09)
Net realized and unrealized
gain (loss)                                   3.63            2.00          3.62           2.17            4.72         (9.31)
                                        ------------------------------------------------------------------------------------------
Total from investment
operations                                    3.55            1.88          3.88           2.18            4.67         (9.40)
- ----------------------------------------------------------------------------------------------------------------------------------
Dividends and/or
distributions to shareholders:
Dividends from net investment
income                                          --            (.25)           --             --              --            --
Distributions from net
realized gain                                   --              --            --             --              --          (.99)
                                        ------------------------------------------------------------------------------------------
Total dividends and/or
distributions to shareholders                   --            (.25)           --             --              --          (.99)
- ----------------------------------------------------------------------------------------------------------------------------------

Net asset value, end of period          $    46.63      $    43.08    $    41.45     $    37.57      $    35.39    $    30.72
                                        ==========================================================================================

- ----------------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET
VALUE 3                                       8.24%           4.53%        10.33%          6.16%          15.20%       (23.48)%
- ----------------------------------------------------------------------------------------------------------------------------------

- ----------------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
- ----------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period
(in thousands)                          $5,202,959      $5,278,253    $5,633,688     $5,218,310      $4,288,332    $3,219,391
- ----------------------------------------------------------------------------------------------------------------------------------
Average net assets
(in thousands)                          $5,374,830      $5,569,912    $5,597,821     $4,971,315      $3,655,594    $3,204,793
- ----------------------------------------------------------------------------------------------------------------------------------
Ratios to average net
assets: 4
Net investment income (loss)                 (0.37)%         (0.28)%        0.64% 2        0.09%          (0.11)%       (0.15)%
Total expenses                                1.08% 5,6       1.07% 6       1.06% 6        1.09% 6,7       1.17% 6       1.22% 6,7
- ----------------------------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                         19%             83%           38%            45%             42%           28%


1. Per share amounts calculated based on the average shares outstanding during
the period.

2. Net investment income per share and the net investment income ratio include
$.17 and 0.43%, respectively, resulting from a special dividend from Microsoft
Corp. in November 2004.

3. Assumes an investment on the business day before the first day of the fiscal
period, 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. Returns do not reflect the deduction of taxes that a shareholder
would pay on fund distributions or the redemption of fund shares.

4. Annualized for periods of less than one full year.

5. Expenses including indirect expenses from affiliated fund were as follows:

                Six Months Ended February 28, 2007         1.08%

6. Reduction to custodian expenses less than 0.01%.

7. Voluntary waiver of transfer agent fees less than 0.01%.

SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   24 | OPPENHEIMER CAPITAL APPRECIATION FUND





                                            SIX MONTHS                                                                        YEAR
                                                 ENDED                                                                       ENDED
                                     FEBRUARY 28, 2007                                                                  AUGUST 31,
CLASS B                                     (UNAUDITED)          2006            2005             2004          2003          2002
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
PER SHARE OPERATING DATA
- ------------------------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of
period                                      $    39.47     $    38.08      $    34.82       $    33.09    $    28.95    $    39.09
- ------------------------------------------------------------------------------------------------------------------------------------
Income (loss) from investment
operations:
Net investment loss                               (.24) 1        (.45) 1         (.08) 1,2        (.36)         (.31)         (.26)
Net realized and unrealized gain
(loss)                                            3.32           1.84            3.34             2.09          4.45         (8.89)
                                            ----------------------------------------------------------------------------------------
Total from investment operations                  3.08           1.39            3.26             1.73          4.14         (9.15)
- ------------------------------------------------------------------------------------------------------------------------------------
Dividends and/or distributions
to shareholders:
Dividends from net investment
income                                              --             --              --               --            --            --
Distributions from net realized
gain                                                --             --              --               --            --          (.99)
                                            ----------------------------------------------------------------------------------------
Total dividends and/or
distributions to shareholders                       --             --              --               --            --          (.99)
- ------------------------------------------------------------------------------------------------------------------------------------

Net asset value, end of period              $    42.55     $    39.47      $    38.08       $    34.82    $    33.09    $    28.95
                                            ========================================================================================

- ------------------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET VALUE 3                7.81%          3.65%           9.36%            5.23%        14.30%       (24.07)%
- ------------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
- ------------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period
(in thousands)                              $  803,498     $  851,836      $1,041,045       $1,104,348    $1,114,052    $1,029,322
- ------------------------------------------------------------------------------------------------------------------------------------
Average net assets (in thousands)           $  843,459     $  964,658      $1,099,380       $1,169,402    $1,001,311    $1,221,005
- ------------------------------------------------------------------------------------------------------------------------------------
Ratios to average net assets: 4
Net investment loss                              (1.18)%        (1.13)%         (0.21)% 2        (0.81)%       (0.89)%       (0.92)%
Total expenses                                    1.90% 5        1.93%           1.93%            1.99%         2.10%         1.99%
Expenses after payments and
waivers and reduction to custodian
expenses                                          1.90%          1.92%           1.93%            1.97%         1.96%         1.99%
- ------------------------------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                             19%            83%             38%              45%           42%           28%


1. Per share amounts calculated based on the average shares outstanding during
the period.

2. Net investment income per share and the net investment income ratio include
$.16 and 0.43%, respectively, resulting from a special dividend from Microsoft
Corp. in November 2004.

3. Assumes an investment on the business day before the first day of the fiscal
period, 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. Returns do not reflect the deduction of taxes that a shareholder
would pay on fund distributions or the redemption of fund shares.

4. Annualized for periods of less than one full year.

5. Expenses including indirect expenses from affiliated fund were as follows:

                Six Months Ended February 28, 2007         1.90%

SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   25 | OPPENHEIMER CAPITAL APPRECIATION FUND



FINANCIAL HIGHLIGHTS  Continued
- --------------------------------------------------------------------------------



                                        SIX MONTHS                                                                        YEAR
                                             ENDED                                                                       ENDED
                                 FEBRUARY 28, 2007                                                                  AUGUST 31,
CLASS C                                (UNAUDITED)            2006          2005            2004            2003          2002
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                  
PER SHARE OPERATING DATA
- -----------------------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of
period                                  $    39.14      $    37.73    $    34.47      $    32.72      $    28.63    $    38.64
- -----------------------------------------------------------------------------------------------------------------------------------
Income (loss) from investment
operations:
Net investment loss                           (.23) 1         (.41) 1       (.05) 1,2       (.16)           (.23)         (.11)
Net realized and unrealized
gain (loss)                                   3.29            1.82          3.31            1.91            4.32         (8.91)
                                        -------------------------------------------------------------------------------------------
Total from investment
operations                                    3.06            1.41          3.26            1.75            4.09         (9.02)
- -----------------------------------------------------------------------------------------------------------------------------------
Dividends and/or distributions
to shareholders:
Dividends from net investment
income                                          --              --            --              --              --            --
Distributions from net
realized gain                                   --              --            --              --              --          (.99)
                                        -------------------------------------------------------------------------------------------
Total dividends and/or
distributions to shareholders                   --              --            --              --              --          (.99)
- -----------------------------------------------------------------------------------------------------------------------------------

Net asset value, end of period          $    42.20      $    39.14    $    37.73      $    34.47      $    32.72    $    28.63
                                        ===========================================================================================

- -----------------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET
VALUE 3                                       7.82%           3.74%         9.46%           5.35%          14.28%       (24.01)%
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
- -----------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period
(in thousands)                          $  661,970      $  646,333    $  691,467      $  638,676      $  540,118    $  450,989
- -----------------------------------------------------------------------------------------------------------------------------------
Average net assets
(in thousands)                          $  670,165      $  684,056    $  681,646      $  623,172      $  463,768    $  477,369
- -----------------------------------------------------------------------------------------------------------------------------------
Ratios to average net
assets: 4
Net investment loss                          (1.12)%         (1.05)%       (0.14)% 2       (0.69)%         (0.89)%       (0.87)%
Total expenses                                1.83% 5,6       1.84% 6       1.84% 6         1.87% 6,7       1.96% 6       1.94% 6,7
- -----------------------------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                         19%             83%           38%             45%             42%           28%


1. Per share amounts calculated based on the average shares outstanding during
the period.

2. Net investment income per share and the net investment income ratio include
$.16 and 0.43%, respectively, resulting from a special dividend from Microsoft
Corp. in November 2004.

3. Assumes an investment on the business day before the first day of the fiscal
period, 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. Returns do not reflect the deduction of taxes that a shareholder
would pay on fund distributions or the redemption of fund shares.

4. Annualized for periods of less than one full year.

5. Expenses including indirect expenses from affiliated fund were as follows:

                Six Months Ended February 28, 2007         1.83%

6. Reduction to custodian expenses less than 0.01%.

7. Voluntary waiver of transfer agent fees less than 0.01%.

SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   26 | OPPENHEIMER CAPITAL APPRECIATION FUND





                                        SIX MONTHS                                                                           YEAR
                                             ENDED                                                                          ENDED
                                 FEBRUARY 28, 2007                                                                     AUGUST 31,
CLASS N                                (UNAUDITED)            2006            2005             2004           2003           2002
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
PER SHARE OPERATING DATA
- ------------------------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of
period                                 $     42.49     $     40.91     $     37.21      $     35.17    $     30.60    $     41.05
- ------------------------------------------------------------------------------------------------------------------------------------
Income (loss) from investment
operations:
Net investment income (loss)                  (.16) 1         (.27) 1          .11 1,2         (.08)          (.10)          (.07) 1
Net realized and unrealized
gain (loss)                                   3.58            1.98            3.59             2.12           4.67          (9.39) 1
                                       ---------------------------------------------------------------------------------------------
Total from investment
operations                                    3.42            1.71            3.70             2.04           4.57          (9.46)
- ------------------------------------------------------------------------------------------------------------------------------------
Dividends and/or distributions
to shareholders:
Dividends from net investment
income                                          --            (.13)             --               --             --             --
Distributions from net
realized gain                                   --              --              --               --             --           (.99)
                                       ---------------------------------------------------------------------------------------------
Total dividends and/or
distributions to shareholders                   --            (.13)             --               --             --           (.99)
- ------------------------------------------------------------------------------------------------------------------------------------

Net asset value, end of period         $     45.91     $     42.49     $     40.91      $     37.21    $     35.17    $     30.60
                                       =============================================================================================

- ------------------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET
VALUE 3                                       8.05%           4.16%           9.94%            5.80%         14.94%        (23.67)%
- ------------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
- ------------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period
(in thousands)                         $   258,724     $   250,167     $   245,932      $   190,696    $   111,374    $    72,178
- ------------------------------------------------------------------------------------------------------------------------------------
Average net assets
(in thousands)                         $   261,679     $   253,590     $   221,007      $   154,605    $    86,761    $    38,232
- ------------------------------------------------------------------------------------------------------------------------------------
Ratios to average net
assets: 4
Net investment income (loss)                 (0.71)%         (0.63)%          0.27% 2         (0.25)%        (0.35)%        (0.37)%
Total expenses                                1.41% 5         1.42%           1.42%            1.46%          1.46%          1.46%
Expenses after payments and
waivers and reduction to
custodian expenses                            1.41%           1.42%           1.42%            1.44%          1.42%          1.46%
- ------------------------------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                         19%             83%             38%              45%            42%            28%


1. Per share amounts calculated based on the average shares outstanding during
the period.

2. Net investment income per share and the net investment income ratio include
$.17 and 0.43%, respectively, resulting from a special dividend from Microsoft
Corp. in November 2004.

3. Assumes an investment on the business day before the first day of the fiscal
period, 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. Returns do not reflect the deduction of taxes that a shareholder
would pay on fund distributions or the redemption of fund shares.

4. Annualized for periods of less than one full year.

5. Expenses including indirect expenses from affiliated fund were as follows:

                Six Months Ended February 28, 2007         1.41%

SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   27 | OPPENHEIMER CAPITAL APPRECIATION FUND



FINANCIAL HIGHLIGHTS  Continued
- --------------------------------------------------------------------------------



                                        SIX MONTHS                                                                         YEAR
                                             ENDED                                                                        ENDED
                                 FEBRUARY 28, 2007                                                                   AUGUST 31,
CLASS Y                                (UNAUDITED)            2006           2005           2004          2003             2002
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                   
PER SHARE OPERATING DATA
- ----------------------------------------------------------------------------------------------------------------------------------
Net asset value, beginning of
period                                  $    44.21      $    42.52      $    38.40     $    36.04    $    31.16      $    41.55
- ----------------------------------------------------------------------------------------------------------------------------------
Income (loss) from investment
operations:
Net investment income                          .01 1           .05 1           .45 1,2        .09           .01             .02 1
Net realized and unrealized
gain (loss)                                   3.72            2.05            3.67           2.27          4.87           (9.42) 1
                                        ------------------------------------------------------------------------------------------
Total from investment
operations                                    3.73            2.10            4.12           2.36          4.88           (9.40)
- ----------------------------------------------------------------------------------------------------------------------------------
Dividends and/or distributions
to shareholders:
Dividends from net investment
income                                          --            (.41)             --             --            --              --
Distributions from net
realized gain                                   --              --              --             --            --            (.99)
                                        ------------------------------------------------------------------------------------------
Total dividends and/or
distributions to shareholders                   --            (.41)             --             --            --            (.99)
- ----------------------------------------------------------------------------------------------------------------------------------

Net asset value, end of period          $    47.94      $    44.21      $    42.52     $    38.40    $    36.04      $    31.16
                                        ==========================================================================================

- ----------------------------------------------------------------------------------------------------------------------------------
TOTAL RETURN, AT NET ASSET
VALUE 3                                       8.44%           4.93%          10.73%          6.55%        15.66%         (23.23)%
- ----------------------------------------------------------------------------------------------------------------------------------

- ----------------------------------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
- ----------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period
(in thousands)                          $  836,526      $  649,143      $1,186,649     $1,391,718    $1,152,318      $  864,437
- ----------------------------------------------------------------------------------------------------------------------------------
Average net assets
(in thousands)                          $  752,777      $  766,929      $1,210,587     $1,327,404    $  930,500      $  968,867
- ----------------------------------------------------------------------------------------------------------------------------------
Ratios to average net
assets: 4
Net investment income                         0.04%           0.11%           1.10% 2        0.47%         0.29%           0.17%
Total expenses                                0.66% 5,6       0.70% 6,7       0.69% 6        0.71% 6       0.78% 6,7       0.89% 6
- ----------------------------------------------------------------------------------------------------------------------------------
Portfolio turnover rate                         19%             83%             38%            45%           42%             28%


1. Per share amounts calculated based on the average shares outstanding during
the period.

2. Net investment income per share and the net investment income ratio include
$.18 and 0.43%, respectively, resulting from a special dividend from Microsoft
Corp. in November 2004.

3. Assumes an investment on the business day before the first day of the fiscal
period, 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. Returns do not reflect the deduction of taxes that a shareholder
would pay on fund distributions or the redemption of fund shares.

4. Annualized for periods of less than one full year.

5. Expenses including indirect expenses from affiliated fund were as follows:

                Six Months Ended February 28, 2007     0.66%

6. Reduction to custodian expenses less than 0.01%.

7. Voluntary waiver of transfer agent fees less than 0.01%.

SEE ACCOMPANYING NOTES TO FINANCIAL STATEMENTS.


                   28 | OPPENHEIMER CAPITAL APPRECIATION FUND



NOTES TO FINANCIAL STATEMENTS  Unaudited
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
1.SIGNIFICANT ACCOUNTING POLICIES

Oppenheimer Capital Appreciation 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, Class N 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, Class C and Class N shares are
sold without a front-end sales charge but may be subject to a contingent
deferred sales charge (CDSC). Class N shares are sold only through retirement
plans. Retirement plans that offer Class N shares may impose charges on those
accounts. Class Y shares are sold to certain institutional investors without
either a front-end sales charge or a CDSC, however, the institutional investor
may impose charges on those accounts. All classes of shares have identical
rights and voting privileges with respect to the Fund in general and exclusive
voting rights on matters that affect that class alone. Earnings, net assets and
net asset value per share may differ due to each class having its own expenses,
such as transfer and shareholder servicing agent fees and shareholder
communications, directly attributable to that class. Class A, B, C and N 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. The Fund calculates the net asset value of its shares as
of the close of the New York Stock Exchange (the "Exchange"), normally 4:00 P.M.
Eastern time, on each day the Exchange is open for business. Securities may be
valued primarily using dealer-supplied valuations or a portfolio pricing service
authorized by the Board of Trustees. Securities listed or traded on National
Stock Exchanges or other domestic 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. Securities traded on NASDAQ(R) are valued based on the
closing price provided by NASDAQ 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 traded on
foreign exchanges are valued based on the last sale price on the principal
exchange on which the security is traded, as identified by the portfolio pricing
service, prior to the time when the Fund's assets are valued. In the absence of
a sale, the security is valued at the official closing price on the principal
exchange. Corporate, government and municipal debt instruments having a
remaining maturity in excess of sixty days and all mortgage-backed securities
will be valued at the mean between the "bid" and "asked" prices. Futures
contracts traded on a commodities or futures exchange will be valued at the
final settlement price or official closing price on the principal exchange as
reported by such principal exchange at its


                   29 | OPPENHEIMER CAPITAL APPRECIATION FUND



NOTES TO FINANCIAL STATEMENTS  Unaudited / Continued
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
1. SIGNIFICANT ACCOUNTING POLICIES Continued

trading session ending at, or most recently prior to, the time when the Fund's
assets are valued. Options are valued daily based upon the last sale price on
the principal exchange on which the option is traded. Securities (including
restricted securities) for which market quotations are not readily available are
valued at their fair value. Foreign and domestic securities whose values have
been materially affected by what the Manager identifies as a significant event
occurring before the Fund's assets are valued but after the close of their
respective exchanges will be fair valued. Fair value is determined in good faith
using consistently applied procedures under the supervision of the Board of
Trustees. Investments in open-end registered investment companies (including
affiliated funds) are valued at that fund's net asset value. 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 Fund's accounting records are maintained in
U.S. dollars. The values of securities denominated in foreign currencies and
amounts related to the purchase and sale of foreign securities and foreign
investment income are translated into U.S. dollars as of the close of the New
York Stock Exchange (the "Exchange"), normally 4:00 P.M. Eastern time, on each
day the Exchange is open for business. Foreign exchange rates may be valued
primarily using dealer supplied valuations or a portfolio pricing service
authorized by the Board of Trustees.

      Reported net realized foreign exchange gains or losses arise from sales of
portfolio securities, sales and maturities of short-term securities, sales of
foreign currencies, currency gains or losses realized between the trade and
settlement dates on securities transactions, and the difference between the
amounts of dividends, interest, and foreign withholding taxes recorded on the
Fund's books and the U.S. dollar equivalent of the amounts actually received or
paid. Net unrealized foreign exchange gains and losses arise from changes in the
values of assets and liabilities, including investments in securities at fiscal
period end, resulting from changes in exchange rates.

      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.

- --------------------------------------------------------------------------------
INVESTMENT IN OPPENHEIMER INSTITUTIONAL MONEY MARKET FUND. The Fund is permitted
to invest daily available cash balances in an affiliated money market fund. The
Fund may invest the available cash in Class E shares of Oppenheimer
Institutional Money Market Fund ("IMMF") which seeks current income and
stability of principal. IMMF is a registered open-end management investment
company, regulated as a money market fund under the Investment Company Act of
1940, as amended. The Manager is also the investment advisor of IMMF. The Fund's
investment in IMMF is included in the Statement of Investments. As a
shareholder, the Fund is subject to its proportional share of IMMF's Class E
expenses, including its management fee. The Manager will waive fees and/or reim-


                   30 | OPPENHEIMER CAPITAL APPRECIATION FUND



burse Fund expenses in an amount equal to the indirect management fees incurred
through the Fund's investment in IMMF.

- --------------------------------------------------------------------------------
JOINT REPURCHASE AGREEMENTS. Pursuant to an Exemptive Order issued by the
Securities and Exchange Commission, the Fund, along with other affiliated funds
advised by the Manager, may transfer uninvested cash balances into joint trading
accounts on a daily basis. These balances are invested in one or more repurchase
agreements. Securities pledged as collateral for repurchase agreements are held
by a custodian bank until the agreements mature. Each agreement requires that
the market value of the collateral be sufficient to cover payments of interest
and principal. In the event of default by the other party to the agreement,
retention of the collateral may be subject to legal proceedings.

- --------------------------------------------------------------------------------
ALLOCATION OF INCOME, EXPENSES, GAINS AND LOSSES. Income, expenses (other than
those attributable to a specific class), gains and losses are allocated on a
daily basis 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 comply with provisions of the Internal
Revenue Code applicable to regulated investment companies and to distribute
substantially all of its investment company taxable income, including any net
realized gain on investments not offset by capital loss carryforwards, if any,
to shareholders, therefore, no federal income or excise tax provision is
required.

      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 their 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 net realized gain was recorded by the Fund.

      As of February 28, 2007, the Fund had available for federal income tax
purposes an estimated capital loss carryforward of $224,030,030 expiring by
2015. This estimated capital loss carryforward represents carryforward as of the
end of the last fiscal year, increased for losses deferred under tax accounting
rules to the current fiscal year and is increased or decreased by capital losses
or gains realized in the first six months of the current fiscal year. As of
February 28, 2007, it is estimated that the Fund will utilize $200,150,265 of
capital loss carryforward to offset realized capital gains. During the fiscal
year ended August 31, 2006, the Fund utilized $30,330,104 of capital loss
carryforward to offset capital gains realized in that fiscal year.


                   31 | OPPENHEIMER CAPITAL APPRECIATION FUND



NOTES TO FINANCIAL STATEMENTS  Unaudited / Continued
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
1.SIGNIFICANT ACCOUNTING POLICIES Continued

As of August 31, 2006, the Fund had available for federal income tax purposes
unused capital loss carryforwards as follows:

                         EXPIRING
                         --------------------------
                         2011         $ 127,593,973
                         2012           296,586,322
                                      -------------
                         Total        $ 424,180,295
                                      =============

- --------------------------------------------------------------------------------
TRUSTEES' COMPENSATION. The Fund has adopted an unfunded retirement plan (the
"Plan") for the Fund's independent trustees. Benefits are based on years of
service and fees paid to each trustee during their period of service. The Plan
was frozen with respect to adding new participants effective December 31, 2006
(the "Freeze Date") and existing Plan Participants as of the Freeze Date will
continue to receive accrued benefits under the Plan. Active independent trustees
as of the Freeze Date have each elected a distribution method with respect to
their benefits under the Plan. During the six months ended February 28, 2007,
the Fund's projected benefit obligations were increased by $292,840 and payments
of $208,343 were made to retired trustees, resulting in an accumulated liability
of $1,071,410 as of February 28, 2007.

      The Board of Trustees has adopted a compensation deferral plan for
independent trustees that enables trustees to elect to defer receipt of all or a
portion of the annual compensation they are entitled to receive from the Fund.
For purposes of determining the amount owed to the Trustee under the plan,
deferred amounts are treated as though equal dollar amounts had been invested in
shares of the Fund or in other Oppenheimer funds selected by the Trustee. The
Fund purchases shares of the funds selected for deferral by the Trustee in
amounts equal to his or her deemed investment, resulting in a Fund asset equal
to the deferred compensation liability. Such assets are included as a component
of "Other" within the asset section of the Statement of Assets and Liabilities.
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. Amounts will be deferred until distributed in
accordance to the compensation deferral plan.

- --------------------------------------------------------------------------------
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. Income and capital gain distributions, if
any, are declared and paid annually.

- --------------------------------------------------------------------------------
INVESTMENT INCOME. Dividend income is recorded on the ex-dividend date or upon
ex-dividend notification in the case of certain foreign dividends where the
ex-dividend date may have passed. Non-cash dividends included in dividend
income, if any, are recorded at the fair market value of the securities
received. Interest income, which includes accretion of discount and amortization
of premium, is accrued as earned.


                   32 | OPPENHEIMER CAPITAL APPRECIATION FUND



- --------------------------------------------------------------------------------
CUSTODIAN FEES. "Custodian fees and expenses" in the Statement of Operations may
include interest expense incurred by the Fund on any cash overdrafts of its
custodian account during the period. Such cash overdrafts may result from the
effects of failed trades in portfolio securities and from cash outflows
resulting from unanticipated shareholder redemption activity. The Fund pays
interest to its custodian on such cash overdrafts, to the extent they are not
offset by positive cash balances maintained by the Fund, at a rate equal to the
Federal Funds Rate plus 0.50%. The "Reduction to custodian expenses" line item,
if applicable, represents earnings on cash balances maintained by the Fund
during the period. Such interest expense and other custodian fees may be paid
with these earnings.

- --------------------------------------------------------------------------------
SECURITY TRANSACTIONS. Security transactions are recorded on the trade date.
Realized gains and losses on securities sold are determined on the basis of
identified cost.

- --------------------------------------------------------------------------------
INDEMNIFICATIONS. The Fund's organizational documents provide
current and former trustees and officers with a limited indemnification against
liabilities arising in connection with the performance of their duties to the
Fund. In the normal course of business, the Fund may also enter into contracts
that provide general indemnifications. The Fund's maximum exposure under these
arrangements is unknown as this would be dependent on future claims that may be
made against the Fund. The risk of material loss from such claims is considered
remote.

- --------------------------------------------------------------------------------
OTHER. The preparation of financial statements in conformity with U.S. 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.

- --------------------------------------------------------------------------------
2.SHARES OF BENEFICIAL INTEREST

The Fund has authorized an unlimited number of $0.001 par value shares of
beneficial interest of each class. Transactions in shares of beneficial interest
were as follows:



                           SIX MONTHS ENDED FEBRUARY 28, 2007           YEAR ENDED AUGUST 31, 2006
                                    SHARES             AMOUNT            SHARES             AMOUNT
- ---------------------------------------------------------------------------------------------------
                                                                      
CLASS A
Sold                             9,985,112    $   456,223,452        26,489,676   $  1,142,952,788
Dividends and/or
distributions reinvested                --                 --           674,183         29,394,376
Redeemed                       (20,917,794)      (957,505,890)      (40,570,510)    (1,745,896,674)
                               --------------------------------------------------------------------
Net decrease                   (10,932,682)   $  (501,282,438)      (13,406,651)  $   (573,549,510)
                               ====================================================================

- ---------------------------------------------------------------------------------------------------
CLASS B
Sold                             1,066,380    $    44,679,021         2,775,274   $    110,036,806
Dividends and/or
distributions reinvested                --                 --                --                 --
Redeemed                        (3,763,868)      (156,821,662)       (8,533,222)      (338,170,898)
                               --------------------------------------------------------------------
Net decrease                    (2,697,488)   $  (112,142,641)       (5,757,948)  $   (228,134,092)
                               ====================================================================



                   33 | OPPENHEIMER CAPITAL APPRECIATION FUND



NOTES TO FINANCIAL STATEMENTS  Unaudited / Continued
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
2. SHARES OF BENEFICIAL INTEREST Continued



                             SIX MONTHS ENDED FEBRUARY 28, 2007           YEAR ENDED AUGUST 31, 2006
                                      SHARES             AMOUNT           SHARES              AMOUNT
- -----------------------------------------------------------------------------------------------------
                                                                       
CLASS C
Sold                               1,252,687      $  52,034,808        3,099,965   $     121,778,447
Dividends and/or
distributions reinvested                  --                 --               --                  --
Redeemed                          (2,080,970)       (86,519,588)      (4,912,952)       (192,487,026)
                                  -------------------------------------------------------------------
Net decrease                        (828,283)     $ (34,484,780)      (1,812,987)  $     (70,708,579)
                                  ===================================================================

- -----------------------------------------------------------------------------------------------------
CLASS N
Sold                                 837,288      $  37,894,107        2,202,829   $      93,779,542
Dividends and/or
distributions reinvested                  --                 --           16,507             711,630
Redeemed                          (1,089,600)       (49,464,860)      (2,343,662)        (99,118,174)
                                  -------------------------------------------------------------------
Net decrease                        (252,312)     $ (11,570,753)        (124,326)  $      (4,627,002)
                                  ===================================================================

- -----------------------------------------------------------------------------------------------------
CLASS Y
Sold                               3,600,408      $ 170,215,996        9,675,483   $     427,182,549
Dividends and/or
distributions reinvested                  --                 --          245,563          10,957,036
Redeemed                            (836,250)       (39,519,474)     (23,144,721)     (1,015,879,438)
                                  -------------------------------------------------------------------
Net increase (decrease)            2,764,158      $ 130,696,522      (13,223,675)  $    (577,739,853)
                                  ===================================================================


- --------------------------------------------------------------------------------
3.PURCHASES AND SALES OF SECURITIES

The aggregate cost of purchases and proceeds from sales of securities, other
than short-term obligations and money market funds, for the six months ended
February 28, 2007, were as follows:

                                                  PURCHASES               SALES
- --------------------------------------------------------------------------------
Investment securities                       $ 1,480,709,054     $ 2,004,276,533

- --------------------------------------------------------------------------------
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 at an
annual rate of average net assets as shown in the following table:

                        FEE SCHEDULE
                        -----------------------------------
                        Up to $200 million            0.75%
                        Next $200 million             0.72
                        Next $200 million             0.69
                        Next $200 million             0.66
                        Next $700 million             0.60
                        Next $1 billion               0.58
                        Next $2 billion               0.56
                        Next $2 billion               0.54
                        Next $2 billion               0.52
                        Next $2.5 billion             0.50
                        Over $11 billion              0.48


                   34 | OPPENHEIMER CAPITAL APPRECIATION FUND



- --------------------------------------------------------------------------------
TRANSFER AGENT FEES. OppenheimerFunds Services (OFS or the Transfer Agent), a
division of the Manager, acts as the transfer and shareholder servicing agent
for the Fund. The Fund pays OFS a per account fee. For the six months ended
February 28, 2007, the Fund paid $9,256,964 to OFS for services to the Fund.

      Additionally, Class Y shares are subject to minimum fees of $10,000 per
annum for assets of $10 million or more. The Class Y shares are subject to the
minimum fees in the event that the per account fee does not equal or exceed the
applicable minimum fees. OFS may voluntarily waive the minimum fees.

- --------------------------------------------------------------------------------
DISTRIBUTION AND SERVICE PLAN (12b-1) FEES. Under its General Distributor's
Agreement with the Fund, OppenheimerFunds Distributor, Inc. (the Distributor)
acts as the Fund's principal underwriter in the continuous public offering of
the Fund's classes of shares.

- --------------------------------------------------------------------------------
SERVICE PLAN FOR CLASS A SHARES. The Fund has adopted a Service Plan for Class A
shares. It reimburses the Distributor for a portion of its costs incurred for
services provided to accounts that hold Class A shares. Reimbursement is made
periodically at an annual rate of up to 0.25% of the average annual net assets
of Class A shares of the Fund. The Distributor currently uses all of those fees
to pay dealers, brokers, banks and other financial institutions periodically for
providing personal services and maintenance of accounts of their customers that
hold Class A shares. Any unreimbursed expenses the Distributor incurs with
respect to Class A shares in any fiscal year cannot be recovered in subsequent
periods. Fees incurred by the Fund under the plan are detailed in the Statement
of Operations.

- --------------------------------------------------------------------------------
DISTRIBUTION AND SERVICE PLANS FOR CLASS B, CLASS C AND CLASS N SHARES. The Fund
has adopted Distribution and Service Plans for Class B, Class C and Class N
shares to compensate the Distributor for its services in connection with the
distribution of those shares and servicing accounts. Under the plans, the Fund
pays the Distributor an annual asset-based sales charge of 0.75% on Class B and
Class C shares and 0.25% on Class N shares. The Distributor also receives a
service fee of 0.25% per year under each plan. If either the Class B, Class C or
Class N plan is terminated by the Fund or by the shareholders of a class, the
Board of Trustees and its independent trustees must determine whether the
Distributor shall be entitled to payment from the Fund of all or a portion of
the service fee and/or asset-based sales charge in respect to shares sold prior
to the effective date of such termination. The Distributor determines its
uncompensated expenses under the plan at calendar quarter ends. The
Distributor's aggregate uncompensated expenses under the plan at December 31,
2006 for Class B, Class C and Class N shares were $13,867,775, $11,652,705 and
$3,468,109, respectively. Fees incurred by the Fund under the plans are detailed
in the Statement of Operations.

- --------------------------------------------------------------------------------
SALES CHARGES. Front-end sales charges and contingent deferred sales charges
(CDSC) do not represent expenses of the Fund. They are deducted from the
proceeds of sales of Fund shares prior to investment or from redemption proceeds
prior to remittance, as applicable. The sales charges retained by the
Distributor from the sale of shares and the


                   35 | OPPENHEIMER CAPITAL APPRECIATION FUND



NOTES TO FINANCIAL STATEMENTS  Unaudited / Continued
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
4.FEES AND OTHER TRANSACTIONS WITH AFFILIATES Continued

CDSC retained by the Distributor on the redemption of shares is shown in the
following table for the period indicated.



                                           CLASS A         CLASS B          CLASS C         CLASS N
                           CLASS A      CONTINGENT      CONTINGENT       CONTINGENT      CONTINGENT
                         FRONT-END        DEFERRED        DEFERRED         DEFERRED        DEFERRED
                     SALES CHARGES   SALES CHARGES   SALES CHARGES    SALES CHARGES   SALES CHARGES
SIX MONTHS             RETAINED BY     RETAINED BY     RETAINED BY      RETAINED BY     RETAINED BY
ENDED                  DISTRIBUTOR     DISTRIBUTOR     DISTRIBUTOR      DISTRIBUTOR     DISTRIBUTOR
- ----------------------------------------------------------------------------------------------------
                                                                             
February 28, 2007        $ 872,119        $ 13,292       $ 767,520         $ 19,587         $ 7,134


- --------------------------------------------------------------------------------
WAIVERS AND REIMBURSEMENTS OF EXPENSES. OFS has voluntarily agreed to limit
transfer and shareholder servicing agent fees for all classes to 0.35% of
average annual net assets per class. This undertaking may be amended or
withdrawn at any time.

      The Manager will waive fees and/or reimburse Fund expenses in an amount
equal to the indirect management fees incurred through the Fund's investment in
IMMF. During the six months ended February 28, 2007, the Manager waived $26,613
for IMMF management fees.

- --------------------------------------------------------------------------------
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 to settle specific purchases or sales of securities
denominated in a foreign currency and for protection from adverse exchange rate
fluctuation. 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 prevailing foreign currency exchange rates.
Unrealized appreciation and depreciation on foreign currency contracts are
reported in the Statement of Assets and Liabilities as a receivable or payable
and in the Statement of Operations with the change in unrealized appreciation or
depreciation.

      The Fund may realize a gain or loss upon the closing or settlement of the
foreign transaction. Contracts closed or settled with the same broker are
recorded as net realized gains or losses. Such realized gains and losses are
reported with all other foreign currency gains and losses in the Statement of
Operations.

      As of February 28, 2007, the Fund had no outstanding foreign currency
contracts.

- --------------------------------------------------------------------------------
6.SECURITIES LENDING

The Fund lends portfolio securities from time to time in order to earn
additional income. In return, the Fund receives collateral in the form of
securities, letters of credit or cash, against the loaned securities and
maintains collateral in an amount not less than 100% of the market value of the
loaned securities during the period of the loan. The market value of the loaned
securities is determined at the close of business each day. If the Fund is


                   36 | OPPENHEIMER CAPITAL APPRECIATION FUND



undercollateralized at the close of business due to an increase in market value
of securities on loan, additional collateral is requested from the borrowing
counterparty and is delivered to the Fund on the next business day. Cash
collateral may be invested in approved investments and the Fund bears the risk
of any loss in value of these investments. The Fund retains a portion of the
interest earned from the collateral. If the borrower defaults on its obligation
to return the securities loaned because of insolvency or other reasons, the Fund
could experience delays and cost in recovering the securities loaned or in
gaining access to the collateral. The Fund continues to receive the economic
benefit of interest or dividends paid on the securities loaned in the form of a
substitute payment received from the borrower. As of February 28, 2007, the Fund
had on loan securities valued at $95,519,818, which are included in the
Statement of Assets and Liabilities as "Investments, at value" and, when
applicable, as "Receivable for Investments sold." Collateral of $101,157,250 was
received for the loans, all of which was received in cash and subsequently
invested in approved investments or held as cash.

- --------------------------------------------------------------------------------
7.RECENT ACCOUNTING PRONOUNCEMENTS

In June 2006, the Financial Accounting Standards Board ("FASB") issued FASB
Interpretation No. 48 ("FIN 48"), ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES.
FIN 48 clarifies the accounting for uncertainty in income taxes recognized in an
enterprise's financial statements in accordance with FASB Statement No. 109,
ACCOUNTING FOR INCOME TAXES. FIN 48 requires the evaluation of tax positions
taken in the course of preparing the Fund's tax returns to determine whether it
is "more-likely-than-not" that tax positions taken in the Fund's tax return will
be ultimately sustained. A tax liability and expense must be recorded in respect
of any tax position that, in Management's judgment, will not be fully realized.
FIN 48 is effective for fiscal years beginning after December 15, 2006. As of
February 28, 2007, the Manager has evaluated the implications of FIN 48 and does
not currently anticipate a material impact to the Fund's financial statements.
The Manager will continue to monitor the Fund's tax positions prospectively for
potential future impacts.

      In September 2006, the FASB issued Statement of Financial Accounting
Standards ("SFAS") No. 157, FAIR VALUE MEASUREMENTS. This standard establishes a
single authoritative definition of fair value, sets out a framework for
measuring fair value and expands disclosures about fair value measurements. SFAS
No. 157 applies to fair value measurements already required or permitted by
existing standards. SFAS No. 157 is effective for financial statements issued
for fiscal years beginning after November 15, 2007, and interim periods within
those fiscal years. As of February 28, 2007, the Manager does not believe the
adoption of SFAS No. 157 will materially impact the financial statement amounts;
however, additional disclosures may be required about the inputs used to develop
the measurements and the effect of certain of the measurements on changes in net
assets for the period.


                   37 | OPPENHEIMER CAPITAL APPRECIATION FUND



PORTFOLIO PROXY VOTING POLICIES AND PROCEDURES;
UPDATES TO STATEMENTS OF INVESTMENTS  Unaudited
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
The Fund has adopted Portfolio Proxy Voting Policies and Procedures under which
the Fund votes proxies relating to securities ("portfolio proxies") held by the
Fund. A description of the Fund's Portfolio Proxy Voting Policies and Procedures
is available (i) without charge, upon request, by calling the Fund toll-free at
1.800.525.7048, (ii) on the Fund's website at www.oppenheimerfunds.com, and
(iii) on the SEC's website at www.sec.gov. In addition, the Fund is required to
file Form N-PX, with its complete proxy voting record for the 12 months ended
June 30th, no later than August 31st of each year. The Fund's voting record is
available (i) without charge, upon request, by calling the Fund toll-free at
1.800.525.7048, and (ii) in the Form N-PX filing on the SEC's website at
www.sec.gov.

      The Fund files its complete schedule of portfolio holdings with the SEC
for the first quarter and the third quarter of each fiscal year on Form N-Q. The
Fund's Form N-Q filings are available on the SEC's website at
http://www.sec.gov. Those forms may be reviewed and copied at the SEC's Public
Reference Room in Washington D.C. Information on the operation of the Public
Reference Room may be obtained by calling 1-800-SEC-0330.


                   38 | OPPENHEIMER CAPITAL APPRECIATION FUND



BOARD APPROVAL OF THE FUND'S INVESTMENT
ADVISORY AGREEMENT  Unaudited
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Each year, the Board of Trustees (the "Board"), including a majority of the
independent Trustees, is required to determine whether to renew the Fund's
investment advisory agreement (the "Agreement"). The Investment Company Act of
1940, as amended, requires that the Board request and evaluate, and that the
Manager provide, such information as may be reasonably necessary to evaluate the
terms of the Agreement. The Board employs an independent consultant to prepare a
report that provides information, including comparative information that the
Board requests for that purpose. In addition, the Board receives information
throughout the year regarding Fund services, fees, expenses and performance.

      The Manager and the independent consultant provided information to the
Board on the following factors: (i) the nature, quality and extent of the
Manager's services, (ii) the investment performance of the Fund and the Manager,
(iii) the fees and expenses of the Fund, including comparative expense
information, (iv) the profitability of the Manager and its affiliates, including
an analysis of the cost of providing services by the Manager and its affiliates,
(v) the extent to which economies of scale are realized as the Fund grows and
whether fee levels reflect these economies of scale for Fund investors and (vi)
other benefits to the Manager from its relationship with the Fund. The Board was
aware that there are alternatives to retaining the Manager.

      NATURE AND EXTENT OF SERVICES. The Board considered information about the
nature and extent of the services provided to the Fund and information regarding
the Manager's key personnel who provide such services. The Manager's duties
include providing the Fund with the services of the portfolio managers and the
Manager's investment team, who provide research, analysis and other advisory
services in regard to the Fund's investments; securities trading services;
oversight of third party service providers; monitoring compliance with
applicable Fund policies and procedures and adherence to the Fund's investment
restrictions. The Manager is responsible for providing certain administrative
services to the Fund as well. Those services include providing and supervising
all administrative and clerical personnel who are necessary in order to provide
effective corporate administration for the Fund; compiling and maintaining
records with respect to the Fund's operations; preparing and filing reports
required by the Securities and Exchange Commission; preparing periodic reports
regarding the operations of the Fund for its shareholders; preparing proxy
materials for shareholder meetings; and preparing the registration statements
required by Federal and state securities laws for the sale of the Fund's shares.
The Manager also provides the Fund with office space, facilities and equipment.


                   39 | OPPENHEIMER CAPITAL APPRECIATION FUND



BOARD APPROVAL OF THE FUND'S INVESTMENT
ADVISORY AGREEMENT  Unaudited
- --------------------------------------------------------------------------------

      QUALITY OF SERVICES. The Board also considered the quality of the services
provided and the quality of the Manager's resources that are available to the
Fund. The Board took account of the fact that the Manager has had over forty
years of experience as an investment adviser and that its assets under
management rank it among the top mutual fund managers in the United States. The
Board evaluated the Manager's administrative, accounting, legal and compliance
services, and information the Board has received regarding the experience and
professional qualifications of the Manager's personnel and the size and
functions of its staff. In its evaluation of the quality of the portfolio
management services provided, the Board considered the experience of William L.
Wilby, Marc Baylin and the Manager's Growth Equity investment team and analysts.
The Board members also considered their experiences with the Manager and its
officers and other personnel through their service on the boards of the Fund and
other funds advised by the Manager. The Board considered information regarding
the quality of services provided by affiliates of the Manager, which its members
have become knowledgeable about in connection with the renewal of the Fund's
service agreements. In light of the foregoing, the Board concluded that the Fund
benefits from the services provided under the Agreement and from the Manager's
experience, reputation, personnel, operations, and resources.

      INVESTMENT PERFORMANCE OF THE MANAGER AND THE FUND. During the year, the
Manager provided information on the investment performance of the Fund and the
Manager at each Board meeting, including comparative performance information.
The Board also reviewed information, prepared by the Manager and by the
independent consultant, comparing the Fund's historical performance to relevant
market indices and to the performance of all other retail front-end load and
no-load large-cap growth funds advised by the Manager and by other investment
advisers. The Board noted that the Fund's one-year, three-year, five-year and
ten-year performance were all better than its peer group median.

      MANAGEMENT FEES AND EXPENSES. The Board reviewed the fees paid to the
Manager and its affiliates and the other expenses borne by the Fund. The Board
also evaluated the comparability of the fees charged and the services provided
to the Fund to the fees and services for other clients or accounts advised by
the Manager. The independent consultant provided comparative data in regard to
the fees and expenses of the Fund, other large-cap growth funds and other funds
with comparable asset levels and distribution features. The Board noted that the
Fund's contractual and actual management fees and total expenses are lower than
its peer median.


                   40 | OPPENHEIMER CAPITAL APPRECIATION FUND



      ECONOMIES OF SCALE. The Board reviewed the extent to which the Manager may
realize economies of scale in managing and supporting the Fund, the extent to
which those economies of scale benefit the Fund's shareholders and the current
level of Fund assets in relation to the Fund's breakpoint schedule for its
management fees. The Board also noted the Fund's breakpoints, which are intended
to share economies of scale that may exist as the Fund grows with its
shareholders.

      BENEFITS TO THE MANAGER. The Board considered information regarding the
Manager's costs in serving as the Fund's investment adviser, including the costs
associated with the personnel and systems necessary to manage the Fund, and
information regarding the Manager's profitability from its relationship with the
Fund. The Board considered that the Manager must be able to pay and retain
experienced professional personnel at competitive rates to provide services to
the Fund and that maintaining the financial viability of the Manager is
important in order for the Manager to continue to provide significant services
to the Fund and its shareholders. In addition to considering the profits
realized by the Manager, the Board considered information regarding the direct
and indirect benefits the Manager receives as a result of its relationship with
the Fund, including compensation paid to the Manager's affiliates for services
provided and research provided to the Manager in connection with permissible
brokerage arrangements (soft dollar arrangements).

      CONCLUSIONS. These factors were also considered by the independent
Trustees meeting separately from the full Board, assisted by experienced counsel
to the Fund and the independent Trustees. Fund counsel is independent of the
Manager within the meaning and intent of the Securities and Exchange Commission
Rules.

      Based on its review of the information it received and its evaluations
described above, the Board, including a majority of the independent Trustees,
concluded that the nature, extent and quality of the services provided to the
Fund by the Manager are a benefit to the Fund and in the best interest of the
Fund's shareholders and that the amount and structure of the compensation
received by the Manager and its affiliates are reasonable in relation to the
services provided. Accordingly, the Board elected to continue the Agreement for
another year. In arriving at this decision, the Board did not single out any
factor or factors as being more important than others, but considered all of the
factors together. The Board judged the terms and conditions of the Agreement,
including the management fee, in light of all of the surrounding circumstances.


                   41 | OPPENHEIMER CAPITAL APPRECIATION FUND



ITEM 2.  CODE OF ETHICS.

Not applicable to semiannual reports.

ITEM 3.  AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable to semiannual reports.

ITEM 4.  PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable to semiannual reports.




ITEM 5.  AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.

ITEM 6.  SCHEDULE OF INVESTMENTS.

Not applicable.

ITEM 7.  DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 8.  PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 9.  PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
COMPANY AND AFFILIATED PURCHASERS.

Not applicable.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

THE FUND'S GOVERNANCE COMMITTEE PROVISIONS WITH RESPECT TO NOMINATIONS OF
DIRECTORS/TRUSTEES TO THE RESPECTIVE BOARDS

1.   The Fund's Governance Committee (the "Committee") will evaluate potential
     Board candidates to assess their qualifications. The Committee shall have
     the authority, upon approval of the Board, to retain an executive search
     firm to assist in this effort. The Committee may consider recommendations
     by business and personal contacts of current Board members and by executive
     search firms which the Committee may engage from time to time and may also
     consider shareholder recommendations. The Committee may consider the advice
     and recommendation of the Funds' investment manager and its affiliates in
     making the selection.

2.   The Committee shall screen candidates for Board membership. The Committee
     has not established specific qualifications that it believes must be met by
     a trustee nominee. In evaluating trustee nominees, the Committee considers,
     among other things, an individual's background, skills, and experience;
     whether the individual is an "interested person" as defined in the
     Investment Company Act of 1940; and whether the individual would be deemed




     an "audit committee financial expert" within the meaning of applicable SEC
     rules. The Committee also considers whether the individual's background,
     skills, and experience will complement the background, skills, and
     experience of other nominees and will contribute to the Board. There are no
     differences in the manner in which the Committee evaluates nominees for
     trustees based on whether the nominee is recommended by a shareholder.

3.   The Committee may consider nominations from shareholders for the Board at
     such times as the Committee meets to consider new nominees for the Board.
     The Committee shall have the sole discretion to determine the candidates to
     present to the Board and, in such cases where required, to shareholders.
     Recommendations for trustee nominees should, at a minimum, be accompanied
     by the following:

     o    the name, address, and business, educational, and/or other pertinent
          background of the person being recommended;

     o    a statement concerning whether the person is an "interested person" as
          defined in the Investment Company Act of 1940;

     o    any other information that the Funds would be required to include in a
          proxy statement concerning the person if he or she was nominated; and

     o    the name and address of the person submitting the recommendation and,
          if that person is a shareholder, the period for which that person held
          Fund shares.

     The recommendation also can include any additional information which the
     person submitting it believes would assist the Committee in evaluating the
     recommendation.

4.   Shareholders should note that a person who owns securities issued by
     Massachusetts Mutual Life Insurance Company (the parent company of the
     Funds' investment adviser) would be deemed an "interested person" under the
     Investment Company Act of 1940. In addition, certain other relationships
     with Massachusetts Mutual Life Insurance Company or its subsidiaries, with
     registered broker-dealers, or with the Funds' outside legal counsel may
     cause a person to be deemed an "interested person."

5.   Before the Committee decides to nominate an individual as a trustee,
     Committee members and other directors customarily interview the individual
     in person. In addition, the individual customarily is asked to complete a
     detailed questionnaire which is designed to elicit information which must
     be disclosed under SEC and stock exchange rules and to determine whether
     the individual is subject to any statutory disqualification from serving as
     a trustee of a registered investment company.




ITEM 11. CONTROLS AND PROCEDURES.

Based on their evaluation of the registrant's disclosure controls and procedures
(as defined in rule 30a-3(c) under the Investment Company Act of 1940 (17 CFR
270.30a-3(c)) as of February 28, 2007, the registrant's principal executive
officer and principal financial officer found the registrant's disclosure
controls and procedures to provide reasonable assurances that information
required to be disclosed by the registrant in the reports that it files under
the Securities Exchange Act of 1934 (a) is accumulated and communicated to
registrant's management, including its principal executive officer and principal
financial officer, to allow timely decisions regarding required disclosure, and
(b) is recorded, processed, summarized and reported, within the time periods
specified in the rules and forms adopted by the U.S. Securities and Exchange
Commission.

There have been no changes in the registrant's internal controls over financial
reporting that occurred during the registrant's second fiscal quarter of the
period covered by this report that have materially affected, or are reasonably
likely to materially affect, the registrant's internal control over financial
reporting.

ITEM 12.  EXHIBITS.

(a)  (1) Not applicable to semiannual reports.

     (2) Exhibits attached hereto.

     (3) Not applicable.

(b)  Exhibit attached hereto.





                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

Oppenheimer Capital Appreciation Fund

By:   /s/John V. Murphy
      ---------------------------
      John V. Murphy
      Principal Executive Officer

Date: April 10, 2007

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, this report has been signed below by the
following persons on behalf of the registrant and in the capacities and on the
dates indicated.

By:   /s/John V. Murphy
      ---------------------------
      John V. Murphy
      Principal Executive Officer

Date: April 10, 2007

By:   /s/Brian W. Wixted
      ---------------------------
      Brian W. Wixted
      Principal Financial Officer

Date: April 10, 2007