Our InformationWeek 100 index fell 8.47 points, or 2.6%, to close at 317.41, while the Nasdaq composite index fell 32.24 points, or more than 1.5%, to 2,015.55. The Dow industrials fell 101.32 points, or nearly 1%, to close at 10,334.16, while the S&P 500 fell 11.86 points, or more than 1%, to finish the day at 1,128.98.
Shares of Emulex fell nearly 20% to $11.46 after the data-storage-system maker issued a profit warning, and Yahoo shares dropped more than 5% to $34.30 after Smith Barney downgraded its stock. Intel shares lost more than 2% of their value, closing at $27.02, and Hewlett-Packard stock fell more than 2% to $20.58. The Nasdaq-100 tracking stock closed at $37.04, down 70 cents, or nearly 2%, on heavy volume of nearly 119 million shares.
On the economic front, the number of Americans filing new unemployment claims last week increased to 351,000--higher than the 343,000 economists expected--from an upwardly revised 350,000 new claims the week before. On Friday, the Labor Department issues its all-important payrolls report for June.
See the full listing of all the companies in the InformationWeek 100 and the top 5 percentage winners and losers for the last closing at informationweek.com/stocks.