McCormick & Schmick’s Seafood Restaurants, Inc. (Nasdaq: MSSR) shares gained 29.2% to $9.20, on volume of 515,736 shares, overwhelming an average of 78,167, after Landry Restaurant Inc.’s chief executive said he planned to launch a hostile bid for the restaurant chain.

Intel Corp. (Nasdaq: INTC) traded in 25.1 million shares before the lunch break Monday, compared to a daily average of 61.4 million. Share prices were down 1.6% to $19.42, after its estimates were reduced at Sterne, who assigned a buy rating and $28 price target.

RADVision Ltd. (Nasdaq: RVSN) shares plummeted 12% to $10.53, on volume of 212,160 shares, its daily average below 60,000. The company announced today that based on preliminary results, RVSN expects to report revenues for the first quarter of 2011 of approximately $20.5 to $21.0 million. As a result, the net loss for the first quarter of 2011 is expected to range from $0.15 to $0.19 per diluted share on a GAAP basis and from $0.10 to $0.14 per diluted share on a non-GAAP basis.