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This content was originally published by MarketWatch.com - Top Stories. Original publishers retain all rights. It appears here for a limited time before automated archiving. By MarketWatch.com - Top Stories
U.S. stocks tumbled Thursday with both the Dow Jones Industrial Average and the S&P 500 index suffering their worst day since the October 19, 1987 “Black Monday” crash, while the S&P 500 and Nasdaq Composite joined the Dow in ending a record-setting, 11-year bull market.