Jim Simons founded Renaissance Technologies. It's one of the most successful quant funds in the world. A quant fund determines investments based on mathematical models and algorithmic strategies. Their most successful fund is "Medallion Fund". From 2001 to 2013, the lowest return was +21%. In 2008 when the SS&P 500 lost over 38%, Medallion Fund almost doubled. It has earned over $100 billion in profits for its investors. The fund is only available to employees and family members of the fund. Due to this long-term success, Jim Simons was described as "the most successful hedge fund manager of all time". He is also known as a prize-winning mathematician, billionaire, and now as a philanthropist through the Simons Foundation.
