|Chief Executive Officer|
|Last year: 25|
At the start of the millennium, there were dozens of electronic fixed-income trading platforms. The dot-com shakeout left MarketAxess Holdings (see Richard McVey, No. 27) and Tradeweb Markets as the fittest survivors. This year BlackRock and Goldman Sachs Group announced institutional e-trading initiatives that brought renewed attention to the field. Lee Olesky, the 50-year-old CEO and co-founder of Tradeweb, views that as "a positive signal of increased focus and investment in electronic bond trading and an affirmation of the steady growth of Tradeweb's multidealer marketplace over the past 15 years." With 600 employees, New Yorkbased Tradeweb is part of controlling shareholder Thomson Reuters's marketplaces business, overseen by David Craig (No. 15), and its revenue increased 11 percent in the first quarter. (Ten banks share minority ownership of Tradeweb.) Tradeweb started out with U.S. Treasuries and has continually added to its product menu. European government bonds, for one, saw a 14 percent year-over-year volume jump in April. Since its derivatives platform launched in 2005, Tradeweb has processed over 115,000 trades, valued at more than $10 trillion notional. "Together with the regulatory environment, there's a lot more focus on growth and opportunity in derivatives," Olesky notes.