'''William Joseph O'Neil (March 25, 1933 – May 28, 2023) was an American businessman, stockbroker and writer. He founded the stock brokerage firmWilliam O'Neil & Co. Inc''' in 1963 and the business newspaper ''Investor's Business Daily'' in 1984. O'Neil was the author of the books ''How to Make Money in Stocks'', ''24 Essential Lessons for Investment Success'' and ''The Successful Investor'' among others, and is the creator of the CAN SLIM investment strategy.
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