Advocat Inc (NASDAQ: AVCA) shares advanced 26.13% to $7.00 at 9:50 am. AVCA reported an 89% jump in its operating income for the year ended December 31, 2010.

BroadSoft Inc (NASDAQ: BSFT) climbed 25.85% to $43.92. BSFT reported better-than-expected Q4 results and issued upbeat projections.

China Security & Surveillance Technology Inc (NYSE: CSR) shares surged 22.44% to $5.02. CSR's Board of Directors received a non-binding proposal letter from its Chairman and Chief Executive Officer (CEO), Mr. Guoshen Tu, to purchase all the outstanding shares of the Company's common stock in a going private transaction for $6.50 per share in cash.

Atrinsic Inc (NASDAQ: ATRN) surged 20.04% to $6.83. ATRN reported that subscribers to its Kazaa digital music subscription service can access the Kazaa music service on the iPad and iPhone.

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