Legendary stock speculator William O'Neil dies at 90

Legendary stock speculator William O'Neil died at the age of 90. He founded the Los Angeles-based investment-management firm William O'Neil+Co in 1963. He was a successful practitioner of computer-aided stock analysis, who shared his strategy in a best-selling book and Investor's Business Daily, which he founded in 1984. His death was announced on the website of William O'Neil & Co.