7. Ralph L. Cruz
Title: Co-Chairman and Former Co-CEO*
Company: TradeStation Group
FSB 100 Rank: 46
Value of stock owned: $77.7 million
Value of options: $0.0 million
Total ownership value: $77.7 millionRalph Cruz and his brother William are classically trained violinists - both went to the University of Miami on a full music scholarship - but neither was tech savvy when they set out to start an online stock-trading service. Ralph told Futures magazine that their lack of programming experience helped their product in the end: the brothers needed their charting software to be easy for non-technical people to use. TradeStation now boasts a $450 million market cap.
NEXT: Lloyd Rochford