Shares in Dean Foods rose sharply on Friday, fueling speculation that the largest milk processor in the U.S. might be bought out by Groupe Danone.

Yet, one analyst told Business Week that he didn’t think a buyout by Groupe Danone was likely.

Spokespersons for Dean Foods and Danone declined comment.

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And, read  "Dean Foods won't comment on buyout rumors."

Source: Bloomberg/Business Week