Wall Street stocks tumbled on Friday as the surprise resignation of a European Central Bank executive board member and skepticism over President Barack Obama's economic stimulus spending plans weighed on sentiment.

The Dow Jones industrial average <.DJI> dropped 233.93 points, or 2.07 percent, to 11,061.88. The Standard & Poor's 500 Index <.SPX> dropped 22.55 points, or 1.90 percent, to 1,163.35. The Nasdaq Composite Index <.IXIC> dropped 36.24 points, or 1.43 percent, to 2,492.90.

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