Oberweis Securities

The Oberweis Funds do not anticipate a capital gains distribution in 2009. The Oberweis China Opportunities and International Opportunities Funds do anticipate ordinary income dividends of approximately $0.17 and $0.05 per share, respectively.

These estimates are subject to change and may be updated as more current information becomes available in late November. The shareholder record date is December 28, and dividend payable date is December 29, 2009.

Internet Access to Account Information for Oberweis Fund Shareholders

The Oberweis Funds are pleased to announce online account access and expanded customer service hours. Log on through the Oberweis Funds Shareholders button to view your accounts and place transactions. Fund Shareholders may now contact our service representatives from 7 a.m. to 7 p.m. CST, Mon-Fri, at (800) 245-7311. Thank you for investing in The Oberweis Funds!

Subscribe to The Oberweis Report

How can you find pint-sized companies in high growth stages before the rest of the street? Try the Oberweis Report. Call (800) 323-6166 to subscribe, or subscribe online. You can also download a sample issue. The Oberweis Report is available at no charge for Oberweis Securities online brokerage clients with $100,000 or more in account equity. The Oberweis Report is published by Oberweis Publishing Company, LLC.

The Oberweis Funds Net Asset Values as of November 20, 2009

Symbol

Fund Name

Current NAV

Prior Day NAV

Change

OBEGX

Emerging Growth

15.03

15.13

-0.10

OBMCX

Micro-Cap

9.46

9.50

-0.04

OBSOX

Small-Cap Opportunities

8.48

8.54

-0.06

OBCHX

China Opportunities

16.46

16.44

0.02

OBIOX

International Opportunities

8.67

8.75

-0.08

OBAOX

Asia Opportunities

7.57

7.54

0.03

RUO

Russell 2000 Growth*

319.61

320.55

-0.94

Click here for Net Asset Value Details
and Current Performance

Performance data shown represents past performance and is no guarantee of future results. Investment return and principal value will fluctuate, so that you may have gain or loss when shares are sold. Current performance may be higher or lower than that quoted. Visit us online at oberweisfunds.com for most recent month-end performance. Foreign investments involve greater risks than U.S. investments, including political and economic risks and the risk of currency fluctuations.

Before investing, consider the fund’s investment objectives, risks, charges, and expenses. To obtain a copy of the prospectus please visit our website at oberweisfunds.com or call 800-323-6166. Please read it carefully.

*Measures the performance of those Russell 2000 companies with higher price-to-book ratios and higher forecasted earnings growth rates. The Russell 2000® Growth Index is unmanaged and investors cannot actually make investments in this index.