Top Percentage Gainers and Losers as of 12:15pm 5/16/2011 (VITA, TISA, CISG, ENOC, SPMD, ABIO, BRP, KONG, AERL, SYK, WIFI, GSL, OXGN, ATRN)

Best 1) Orthovita VITA: Trading up 40.1% from Friday's close to $3.82. Orthovita is set to be acquired by Stryker SYK for $3.85 per share in cash. The deal is valued at $316 million. 2) Top Image Systems TISA: Trading up 31.7% from Friday's close to $2.70. Top Image announced the launch of its mobile banking solutions service, which allows financial institutions to meet customer demand for mobile banking options. The new service includes a variety of applications allowing for check deposits, bill payments, and invoice payments. 3) CNinsure CISG: Trading up 29% from Friday's close to $17.00. CNinsure received an offer to acquire the company for $19 per share from a group of buyers, which includes Kingsford Resources, TPG Asia V M U, and Chairman Yinan Hu. 4) EnerNOC ENOC: Trading up 25.6% from Friday's close to $21.43. EnerNOC announced that its 2014 PJM response revenue will grow to over $214 million in 2014. 5) SuperMedia SPMD: Trading up 16.4% from Friday's close to $4.47. Shares hit a 52-week low of $3.31 on Friday. Other Notable Gainers ARCA biopharma ABIO: Trading up 15.5% from Friday's close to $2.90. Brookfield Residential Properties BRP: Trading up 11.7% from Friday's close to $11.34. Worst 1) KongZhong KONG: Trading down 22% from Friday's close to $5.95. KongZhong shares have already traded four times their average daily volume. Heavy selling pressure began at 10:38 EST. 2) Boingo Wireless WIFI: Trading down 13% from Friday's close to $9.35. Boingo shares hit their lowest price ($9.01) since going public on May 4th in today's session. 3) Asia Entertainment & Resources AERL: Trading down 12.5% from Friday's close to $5.80. Selling pressure began to build starting at 11:11am EST. 4) Global Ship Lease GSL: Trading down 11.4% from Friday's close to $6.14. Global Ship Lease reported Q1 revenue of $39.1 million versus $39.2 million for the same period last year. 5) OXiGENE OXGN: Trading down 10.9% from Friday's close to $4.67. A negative report on OXiGENE was published by Seeking Alpha this morning. Other Notable Losers Atrinsic ATRN: Trading down 10.2% from Friday's close to $2.29.