U.S. stocks fell, driving the Standard & Poor’s 500 Index to its biggest slump since August, on concern that European leaders may be unable to keep the eurozone intact as Italian yields surged to a record. The S&P 500 slid 3.7 percent to 1,229.32 as of 4 p.m. New York time, according to preliminary closing data, after rising 1.8 percent over the previous two days. The Stoxx Europe 600 Index decreased 1.7 percent, erasing an earlier advance, as the 10-year Italian note yield topped 7 percent for the first time in the euro era.
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