Alpha Profiles the Top 25 Moneymakers:

James Simons, Kenneth Griffin, and Edward Lampert


Renaissance Technologies Corp.


EVEN THE MOST SUCCESSFUL hedge fund managers have to shake their heads in wonderment at the extraordinary continued success of Renaissance Technologies Corp. founder James Simons. Last year his $6 billion Medallion fund posted a 44 percent return after fees, easily exceeding its roughly 36 percent average annualized net return since he launched the quant-based fund in 1988.

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