NEW YORK (MarketWatch) -- U.S. stock index accelerated their losses Monday afternoon, fueled as the credit crisis spread around the globe. The Dow Jones Industrial Average [: $indu] slid 717.22 points, or 7%, to 9,608.16. The S&P 500 {$spx] fell 80.80 points, or 7.4%, to 1,108.43, while the Nasdaq Composite COMP, -0.29% fell 155.26 points, or 8%, to 1,792.13.