â¿¿ Dollar General's quarterly net income rose as the operator of discount stores attracted more customers and sold more goods. The stock rose $1.01, or 2 percent, to $51.08.

â¿¿ Dell rose 37 cents, or 2.6 percent, to $14.51. The company received competing bids from activist investor Carl Icahn, who offered $15 per share for a majority stake; and buyout firm Blackstone Group, which proposed a deal worth $14.25 per share. Founder Michael Dell had been in talks to take the company private for about $13.65 per share.

â¿¿ McGraw-Hill Cos. rose strongly after it said it will resume an accelerated share buyback program capped at $500 million. The media company will use cash generated by the recent sale of its education business. Its stock rose $1.66, or 3.4 percent, to $50.03.

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Daniel Wagner can be reached at www.twitter.com/wagnerreports .

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