William O’Neil is another star investor profiled in the book Market Wizards. Mixing a unique quantitative and qualitative growth investment strategy, O’Neil achieved dramatic investing success. In 1963 at age 30, he capitalized on this success by launching the brokerage firm William O’Neil & Co, and became the youngest member of the New York Stock Exchange at the time.

In 1983, O’Neil launched Investor’s Business Daily, a popular investment publication that incorporates his investment philosophy. In Market Wizards, O’Neil shares some of the keys to his investing success.