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Home Depot ( HD) and Alcoa ( AA) were two of a handful of Dow components that closed higher, while Kraft Foods ( KFT), Chevron ( CVX), and Coca-Cola ( KO) were the biggest drags.

On the New York Stock Exchange, AAR ( AIR), a products and services provider to aviation and defense industries, was the weakest-performing stock, followed by Navios Maritime Acquisition ( NNA).

AutoZone ( AZO) made gains after beating analysts' estimates with a third-quarter profit of $4.12 a share and sales that rose 9.9%, to $1.82 billion. The stock added $10.32, or 5.6%, to $194.57.

Dynegy ( DYN), USEC ( USU) and AK Steel ( AKS) also made gains, putting in the best performance on the NYSE.

In its continuing efforts to stop the oil leak in the Gulf of Mexico, BP ( BP) is now planning a "top kill" operation under which it will inject heavy drilling fluids into the well to stem the flow of oil and gas.

Yahoo! ( YHOO) acquired Koprol, a Jakarta, Indonesia-based social networking site.

Dell ( DELL) said its Streak, a five-inch Android-based Tablet, will go on sale across the U.K. early next month and in the U.S. later in the summer.

Microsoft ( MSFT) said Entertainment and Devices Division head Robbie Bach will retire in the fall, according to a press release issued today. J Allard, senior vice president of Design and Development in the division, will also be leaving Microsoft, though the company says he will take on an adviser role for CEO Steve Ballmer.

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