RENN Fund, Inc. is a closed-end equity mutual fund launched by RENN Capital Group, Inc. and co-managed by Horizon Kinetics Asset Management LLC. It invests in U.S. public equity markets, targeting small-cap and mid-cap companies across diversified sectors. The fund uses fundamental analysis with a bottom-up stock-picking approach. It was formerly known as RENN Global Entrepreneurs Fund, Inc., was formed on January 20, 1994, and is domiciled in the United States.