Strategy. The Fund invests, under normal circumstances, at least 80% of its net assets in the securities of very small companies which, at the time of purchase, have a market capitalization within the range of companies represented in the Russell Micro -Cap Growth Index. As of June 30, 2024, the market capitalization range of the Russell Micro -Cap Growth Index was $16.9 million to $2.0 billion. The Fund invests principally in the common stocks of companies that the Funds investment adviser, Oberweis Asset Management, Inc. (OAM), believes have the potential for significant long -term growth in market value. The Fund seeks to invest in up -and-coming companies which OAM believes have the potential for increasing profitability and accelerating growth. The Fund … Show more… The Fund invests, under normal circumstances, at least 80% of its net assets in the securities of very small companies which, at the time of purchase, have a market capitalization within the range of companies represented in the Russell Micro -Cap Growth Index. As of June 30, 2024, the market capitalization range of the Russell Micro -Cap Growth Index was $16.9 million to $2.0 billion. The Fund invests principally in the common stocks of companies that the Funds investment adviser, Oberweis Asset Management, Inc. (OAM), believes have the potential for significant long -term growth in market value. The Fund seeks to invest in up -and-coming companies which OAM believes have the potential for increasing profitability and accelerating growth. The Fund primarily invests in companies headquartered in the United States. The Fund seeks to invest in equity securities that typically exhibit the following characteristics: Under -Appreciated Revenue and Earnings Growth potential for revenue and/or earnings growth in excess of consensus expectations. Timely Catalyst a recent positive earnings release or an earnings surprise that tangibly and quantitatively begins to confirm that consensus analyst expectations are too low. Inflection Point of Change a business that is experiencing change often from a new product, a new management team or a regulatory change as these changes can drive unexpected or underestimated growth. A significant gap generally exists between OAMs forecasts and consensus analyst expectations. Limited Analyst Coverage a company not widely followed by other analysts to maximize the chances of finding misunderstood situations. Sustainability a sustainable business with a competitive position driven by niche market leadership, intellectual capital or unique manufacturing processes. Put another way, a reasonable barrier to competitive entry. Operating Leverage profitable and scalable business model, which tends to generate rising net profits margins as revenue growth accelerates. Valuation undervalued based on OAMs growth forecasts and historical valuation metrics afforded the company and/or peers. Show less