Shares of FCNB Corp. surged Wednesday, extending a recent rally that analysts said reflects speculation that the Frederick, Md., community bank could soon be bought.

FCNB's stock rose $1.375, or 7.43% to $19.875 on a day when most bank stocks were down. "I don't gamble, and I don't bet," said Collyn Bement Gilbert, an analyst at Ferris Baker Watts. "But given that FCNB has been a takeover target for some time now, and considering the movement in its stock recently, I would suspect that there is something going on."

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