Ray Dalio

Firm: Bridgewater Associates
City: Westport, Connecticut
2008 Age: 58
2008 Assets Under Management: $160 Billion

Ray Dalio is rumoured to have started trading at the age of 12. Having gained experience in futures and commodities at firms including Merrill Lynch, Dalio founded Bridgewater Associates in 1975.

Bridgewater Associates is a global investment management behemoth with assets of $160 billion. About $45 billion is allocated to the hedge fund strategy Pure Alpha.

Dalio graduated with a finance degree from Long Island University and earned an MBA from Harvard Business School in 1973. Like Jim Simons, Dalio has a quantitative focus in his style of money management.

He is married to Barbara Gabaldoni and has 4 children.