Among the stock activity stories for Thursday, May 9, from AP Business News:

— Barnes & Noble Inc.'s shares surged after a blog reported that Microsoft is considering buying its Nook e-book and e-book reader business outright.

— Shares of Monster Beverage Corp. fell after the energy drink maker reported disappointing first-quarter results and a slowdown in sales.

— Shares of McDermott International Inc. fell after the offshore drilling platform builder reported lower-than-expected first-quarter profit.

 

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