Billionaire hedge-fund manager Bill Ackman made $2.6 billion off a controversial bet that the coronavirus would crash the stock market last month. Ackman was accused of making inflammatory remarks during an appearance on CNBC with the intention of moving the markets to increase his profits but denied it in a press release. Ackman, worth $1.6 billion, has a history of making controversial bets. He has a vast portfolio of luxury real estate and was the subject of an investigation by the New York District Attorney's Office in 2003. Visit Business Insider's homepage for more stories.