#30: New Jersey — John Overdeck
Net Worth $7.4 billion
John Overdeck built his fortune as co-founder of Two Sigma, a quantitative hedge fund that uses data science and algorithms to guide investments. With a background in mathematics, he applied advanced analytics to finance, helping the firm grow into one of the most successful tech-driven funds on Wall Street.

Now, Overdeck continues to oversee investment strategy while also focusing on philanthropy, particularly in education and data-driven learning. He supports initiatives aimed at improving math education. His time is split between guiding his firm and funding projects that reflect his analytical background.
