CNBC SAMANTHA SUBIN,JESSE POUND
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Dow falls more than 600 points, S&P 500 tumbles below 4,000 to the lowest level in a year
Stocks fell sharply Monday, pushing the S&P 500 to breach the 4,000 level for the first time in more than a year as the market sell-off continued. The Dow Jones Industrial Average dropped 653.67 points to 32,245.70, or 1.99%. The S&P 500 fell 3.2% to settle at 3,991.24, while the Nasdaq Composite lost 4.29% to 11,623.25.Read the article on cnbc.com >