How Tom Steyer made his fortune

Quick take: Steyer founded Farallon Capital in 1986, and excelled on three main fronts:

1. A protégé of Bob Rubin's at Goldman Sachs, Steyer was an expert at risk-adjusting potential returns. He's one of the few hedge fund managers who actually spent most of his time constructing sophisticated hedges, making sure he got the returns he wanted without taking risks he didn't want to take and without using undue leverage.
2. As one of the earliest proponents of "absolute return" investing, Steyer had a bond investor's terror of losses. Return of capital was always more important than return on capital. That made him very attractive to conservative institutional investors.
3. Hailing from New York's Upper East Side, Steyer had all the elite connections he needed to be successful: His father was a partner at Sullivan & Cromwell, and his resumé segued seamlessly from the Buckley School through Exeter, Yale (summa cum laude and Phi Beta Kappa), Stanford Business School and Goldman Sachs. He also married into money: His wife, Kat Taylor, is the granddaughter of a San Francisco banking magnate.

Between the lines: Steyer was the kind of hedge-fund billionaire who was quieter, and didn't make big audacious bets. But he was able to promise conservative institutional investors predictably good returns, in both bull and bear markets. That helped him amass a huge asset base.

• Good returns on $30 billion of assets will ultimately make you just as rich as spectacular returns on $3 billion of assets.

The impact: Steyer left Farallon Capital at the end of 2012, and one of his greatest successes is that it's still a Top-20 hedge fund 7 years later. Steyer wasn't some lightning-in-a-bottle individual genius. Rather, he managed to build an institution that would outlast him.

Editor's note: Tom Steyer left Farallon at the end of 2012, not 2013, as was previously written.