Single Fund - Performance

	Total Returns (as of 8/31/2010)		Average Annual Total Returns (as of 8/31/2010)
Ticker Symbol	3 Month	YTD	1 Year	3 Year	5 Year	10 Year	Since Inception (date)
OAKMX	-6.53%	-5.67%	5.34%	-4.36%	0.87%	5.11%	11.70% (8/5/1991)

	Average Annual Total Returns (as of 6/30/2010)
Ticker Symbol	1 Year	3 Year	5 Year	10 Year	Since Inception (date)	Exp. Ratio
OAKMX	22.71%	-5.76%	1.12%	5.81%	11.82% (8/5/1991)	1.23%

Please Note: Expense Ratios are shown as of 9/30/2009.

Past Performance is no guarantee of future results. The performance data quoted represents past performance. Current performance may be lower or higher than the performance data quoted. The investment return and principal value vary so that an investor's shares when redeemed may be worth more or less than their original cost. The performance of the Fund does not reflect the 2% redemption fee on shares redeemed within 90 days.

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	The Funds are designed for a long-term investment horizon - usually 3 to 5 years - such as saving for retirement.



	Commentary on the Oakmark and Oakmark Select Funds

	Oakmark Fund Letter to Shareholders

	"Bull- and Bear-Market Stars" - from Morningstar Research

	"The Season's Just Started" - Barron's interview with Bill Nygren

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Total return includes change in share prices and in each case includes reinvestment of any dividends and capital distributions. Total return is not annualized.

Investing in value stocks presents the risk that value stocks may fall out of favor with investors and underperform growth stocks during given periods.

For more information on The Oakmark Funds, including a prospectus which explains management fees and expenses and the special risks of investing in the Funds, please call 1-800-OAKMARK. Click here to view the prospectus on-line. Please read it carefully before investing. An investor should consider a fund�s investment objectives, risks, and charges and expenses carefully before investing. This and other information about the Funds are contained in the Funds' prospectus.

OAKMARK, OAKMARK FUNDS, OAKMARK INTERNATIONAL, and OAKMARK and tree design are trademarks owned or registered by Harris Associates L.P. in the U.S. and/or other countries.

Copyright 2010, Harris Associates Securities L.P., Distributor, Member FINRA.