Stocks dropped today, led by Boeing Co., whose shares plunged after...

Stocks dropped today, led by Boeing Co., whose shares plunged after losing out to Lockheed Martin on a projected $200 billion U.S. fighter jet contract. The Dow Jones industrial average closed down 275.32, or 2.88%, at 9,269.85; the S&P 500 index fell 27.1, or 2.45%, closing at 1,077.51; and the Nasdaq composite closed down 69.34, or 3.92%, at 1,699.62. All numbers are preliminary.