David Einhorn of Greenlight Capital manages a 13F portfolio that was worth more than $2.8 billion at the end of the fourth quarter of 2025. Einhorn is a long-short value investor renowned for his forensic approach to financial analysis. Since launching his firm in 1996, he has specialized in identifying deep-value opportunities while simultaneously executing high-profile short positions against companies with questionable accounting or flawed business models. Einhorn gained legendary status for his prescien ...