American stock broker and entrepreneur William J O'Neil passes away at 90
William O'Neil, founder of William O'Neil & Co. and Investor's Business Daily, passed away at 90. O'Neil was known for being the youngest person to buy a seat at the New York Stock Exchange, launching a mutual fund that achieved a 115% return in 1967, and creating data collection centers, research centers, and advisory firms for global markets. He wrote several books on investing in the stock market, including ‘How To Make Money In Stocks: A Winning System In Good Times Or Bad', which has sold over 4 million copies worldwide.