D E Shaw & Co

The brainchild of computer science professor David E. Shaw, D. E. Shaw is an ultra-private investment and technology-development outfit that trades stocks, bonds, convertible securities and other financial instruments for instituional and govermental use worldwide. It also solidified D. E. Shaw's reputation as a giant in the hedge fund business. In 2009, Absolute Return ranked D. E. Shaw fourth in AUM for all the hedge funds in the U.S. However, more recently, the firm experienced a severe decline in its assets due to billions of withdrawals in the wake of the recent financial crisis.

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Assets under management: $81.36 billion (circa 2019)