Effective companies are about people working well together, says Hugo Young, manager of the Aberdeen Global Asia Pacific Equity Fund.
James Simons started his hedge fund in 1978. Between 1989 and 2016, he returned just under 40% a year after fees.
Leon Levy made a fortune from betting against the crowd.
Loeb is known as an activist investor, buying into companies that he thinks could be run better.
Louis Bacon became interested in markets after captaining a sports fishing boat for broker Walter Frank.
BlueCrest hedge fund co-founder Michael Platt is quick to cut his losses, but happy to let his winners run.
As an income investor, Mark Barnett focuses on firms paying relatively high levels of dividends.
Legendary investors Joel Greenblatt began as a traditional value investor, looking for companies on low price/earnings (p/e) ratios.
Kyle Bass made $500m after buying credit default swaps on US subprime mortgage securities in the run up to the financial crisis.
Legendary investor Martin Taylor’s focus was on emerging markets.
John Arnold analysed energy firms’ data to decide when natural gas was cheap or expensive.