After an early 1990s stint working on trading technology for Bank of America Corp., Niki Beattie took a job as a contractor in Merrill Lynch & Co.’s finance department. But the boredom was too much for her, so she took eight months off to travel. Coaxed back to Merrill by the promise of a trading-floor position that came open in 1994, she would become one of Europe’s pioneering electronic traders — running Merrill’s first e-trading desk in London in 2001 — and experts on market structure. “I saw the transformation of our whole business,” recalls Beattie, who has a BSc in information systems and management from Birkbeck, University of London. “I could see our margins shrinking and knew we had to bring costs down.” She stayed with Merrill until 2008, rising to head of market structure for Europe, the Middle East and Africa, then founded Market Structure Partners, a London-based adviser to exchanges and other capital market participants. She had a hand in developing such infrastructure components as BOAT, a trade reporting system now owned by Cinnober Financial Technology, and London Stock Exchange Group’s Turquoise platform. Currently nonexecutive chairman of London upstart Aquis Exchange, Beattie observes that “banks are seeing a massive squeeze on their capital. It’s quite clear that exchanges will have to play a bigger role in capital formation.”
1  | 1  | 3  | 4  | 5  |
| Thomas Secunda Bloomberg | Jeffrey Sprecher Intercontinental Exchange | Catherine Bessant Bank of America Corp. | Stephen Neff Fidelity Investments | Lance Uggla Markit |
6  | 7  | 8  | 9  | 10  |
| Robert Goldstein BlackRock | David Craig Thomson Reuters | Phupinder Gill CME Group | Anna Ewing NASDAQ OMX Group | R. Martin Chavez Goldman Sachs Group |
11  | 12  | 13  | 14  | 15  |
| Deborah Hopkins Citi Ventures | Dan Mathisson Credit Suisse | Daniel Coleman KCG Holdings | Michael Spencer ICAP | Michael Bodson Depository Trust & Clearing Corp. |
16  | 17  | 18  | 19  | 20  |
| Joe Ratterman BATS Global Markets | Dominique Cerutti Euronext | Ron Levi GFI Group | Gaurav Suri D.E. Shaw Group | Charles Li Hong Kong Exchanges and Clearing |
21  | 22  | 23  | 24  | 25  |
| Lou Eccleston S&P Capital IQ | Lee Olesky Tradeweb Markets | Richard McVey MarketAxess Holdings | Seth Merrin Liquidnet Holdings | Antoine Shagoury London Stock Exchange Group |
26  | 27  | 28  | 29  | 30  |
| Christopher Perretta State Street Corp. | Kevin Rhein Wells Fargo & Co. | Peter Carr Morgan Stanley | Hauke Stars Deutsche Börse | Robert Alexander Capital One Financial Corp. |
31  | 32  | 33  | 34  | 35  |
| David Gershon SuperDerivatives | Chris Corrado MSCI | Joseph Squeri Citadel | Tanuja Randery BT Global Services | John Bates Software AG |
36  | 37  | 38  | 39  | 40  |
| Gary Scholten Principal Financial Group | David Gledhill DBS Bank | Simon Garland Kx Systems | Cristóbal Conde FinTech Innovation Lab | Jeff Parker EidoSearch |
41  | 42  | 43  | 44  | 45  |
| Kim Fournais & Lars Seier Christensen Saxo Bank | Kenneth Marlin Marlin & Associates | Tyler Kim MaplesFS | Jim McGuire Charles Schwab Corp. | Jim Minnick eVestment |
46  | 47  | 48  | 49  | 50  |
| Steven O’Hanlon Numerix | Sebastián Ceria Axioma | Yasuki Okai Nomura Research Institute | Niki Beattie Market Structure Partners | Mas Nakachi OpenGamma |