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Fund Holdings
 
Top Ten Holdings as of 6/30/10  
 
     Sectors as of 6/30/10         
Thoratec Corporation
 3.6%
Acme Packet, Inc.
 3.2%
Polypore International, Inc.
 3.0%
Impax Laboratories
 2.7%
Acacia Research Corporation
 2.6%
Salix Pharmaceuticals, Inc.
 2.6%
Dendreon Corp.
 2.5%
Hanger Orthopedic Group
 2.1%
IMAX Corporation
 2.0%
Grand Canyon Education, Inc.
 2.0%
 
Consumer Discretionary
 18.9%
Consumer Staples
 5.6%
Energy
 1.1%
Financial Services
 9.0%
Healthcare
 24.2%
Materials & Processing
 5.7%
Producer Durables
 7.9%
Technology
 26.3%
Utilities
 0.0%
Cash
 1.3%
 
 
Top Ten Holdings and Sector Weightings as a % of Total Net Assets

The Oberweis Funds releases the top ten holdings as of the most recent quarter-end after a 60-day lag. A complete list of holdings can be obtained by contacting a shareholder services representative after the aforementioned 60 day delay periods.

The Oberweis Funds invest primarily in small cap companies which may have volatile price movements. Continuous publication of the Funds current holdings has the potential to affect trading volume and the prices of the securities in which the Funds invest. By delaying the release of the holdings, Oberweis may be able to deter front-running by traders who could impair our ability to build positions in our best ideas at the best prices.

Portfolio holdings are subject to change at any time. References to specific securities should not be construed as a recommendation to buy or sell and should not be assumed profitable.