Jesse Livermore

Speculation and price action. Livermore traded on market movements rather than company value, watching prices and volume, buying strength, cutting losses fast and making very large short bets, famously before the crashes of 1907 and 1929. The thinly disguised account of his methods, Reminiscences of a Stock Operator, is still read by traders. His approach also bankrupted him several times, and he took his own life in 1940.