Oberweis Asset Management ABOUT US RESOURCES LOGIN CONTACT US ABOUT US OVERVIEW AFFILIATED COMPANIES INVESTMENT PROCESS INVESTMENT PROCESS The Oberweis Aperture The Oberweis Aperture focuses on investing in small- and mid-cap, emerging-growth stocks. We specialize in shedding light on up-and-coming companies with the potential for increasing profitability and accelerating growth. To identify these companies, we rely on an eight-stage stock selection filter based on key investment traits. Taken together, these eight criteria define the Oberweis Aperture. The Oberweis Aperture allows us to discern those companies that are experiencing superior growth and have the potential to continue doing so. It also helps us to buy these companies at reasonably attractive prices — valuations that don’t yet fully reflect their earnings potential. The Aperture strategy, in short, deepens our insight and brings sharper focus to our stock selection process. Also, by helping us to avoid overpaying for stocks with solid growth potential, this approach can help us fine-tune our exposure to better manage the risks associated with investing in smaller-cap stocks. Oberweis Securities, Inc. 3333 Warrenville Road, Suite 500 Lisle, IL 60532 Institutional Services 800-323-6166 ©2021 "Oberweis" and the "O" design are trademarks of Oberweis Asset Management, Inc. All rights reserved. Privacy Legal Terms of Use DISCLOSURE: Before investing carefully consider the fund's investment objectives, risks, charges and expenses. Please see the prospectus and summary prospectus containing this and other information or call 1-800-323-6166. Read it carefully before investing. The Oberweis Funds are distributed by Oberweis Securities, Inc. Member FINRA & SIPC