RENN Fund Inc is active in the financial services domain. It is a a registered, non-diversified, closed-end management investment company formed to provide return through capital appreciation and income by a long-term, value-oriented investment process that invests in a wide variety of financial instruments, including but not limited to, common stocks, fixed-income securities including convertible and non-convertible debt securities or loans, distressed debt, warrants, and preferred stock, exchange-traded funds and exchange-traded notes, and other instruments. It invests in various industries, including communication services, surgical and medical instruments and apparatus, oil and gas, medical chemicals, botanical products, etc.