For Two Sigma’s Feuding Billionaires, a Truce on the Way Out

  • Hostility between the two men has simmered for years
  • Some fear the former CEOs will continue to clash as advisers

David Siegel and John Overdeck

Photographer: Jeenah Moon/Bloomberg, Thos Robinson/Getty Images
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It’s difficult to say precisely when the feud began between billionaires David Siegel and John Overdeck — the slights and bruised egos stretch back at least a decade — so start here, with the chef’s hat incident.

In 2015, Forbes magazine described Overdeck as the “master chef” at hedge-fund giant Two Sigma Investments, and Siegel as the “manager.” To rub it in, Overdeck wore a toque blanche to a meeting. Siegel stewed for days.