VINCENT VIOLA

Viola has sold more than $530 million worth of shares in his electronic trading firm Virtu Financial since May 2018. The Brooklyn native heads Virtu as executive chairman, but he’s expanding his horizons: He reportedly dropped $108 million for Arizona’s tallest building in October 2018 and earlier this year splurged on a Ft. Lauderdale condo near the NHL’s Florida Panthers, which Viola has owned since 2013.