Photo Illustration: 731, Source: Amanda Gordon/Bloomberg

Divorce, Hedge-Fund Style: Inside the Breakup at Two Sigma

A rancorous divorce, a feud between billionaires and the future of a trading powerhouse.

The cryptic note surfaced at the bitter end of a marriage.

It was written by John Overdeck, the billionaire math whiz behind Two Sigma Investments, as he contemplated the future of his fortune.