Finding Your Edge a Key to Investing Success

By John P. Reese The mathematician Ed Thorp figured out how to beat Las Vegas casinos at blackjack and baccarat and they didn’t like it. But the MIT and University of California Irvine professor didn’t get discouraged. He applied those same mathematical principles to the markets, and also won. Mr. Thorp knows that good ideas have limited runs. As more investors pile into a winning trade, the returns start to diminish and the idea can no longer outperform the market. During a recent Bloomberg interview with Barry Ritholtz, Mr. Thorp discusses this phenomenon in the context of Berkshire Hathaway, whose […]