Mid-Day Top Percentage Gainers and Losers As Of 12pm 4-11-11 (TSTY, FLO, GLBC, LVLT, AMMD, ENDP, EFII, YONG, CYH, TCH, QUIK, TDSC, THC, CIGX)

Best 1) Tasty Baking Company

: Stock has jumped a resounding 145.96% to $3.96 after Flowers Foods

revealed plans to buy the company for $4 per share in an all-cash arrangement. 2) Global Crossing

: Surging 57.91% to $23.37 after Level 3 Communications

announced that it will acquire the company in an all-stock purchase (16 shares of Level 3 common stock for each share of Global Crossing common or preferred). The stock had been up as much as 75% earlier in the session. 3) American Medical Systems

: Currently trading higher by 31.97% to $29.47 after agreeing to be acquired by Endo Pharmaceuticals

for $30 a share. The deal is worth 2.9 billion. 4) Electronics For Imaging

: Enjoying a 16% run to $17.39 after boosting first-quarter guidance. CEO Guy Gecht noted “robust demand” in all three of the company's business segments, mostly in its print servers as well as software products. 5) Yongye International

: Getting a 10.66% boost to $5.40 after reporting better-than-expected first-quarter sales due to heavy demand. Worst 1) Community Health Systems

: Shares are building on earlier losses, currently down 25.88% to $19.91 after being accused of violations of Federal Securities Laws in a lawsuit filed by Tenet Healthcare

. 2) QuickLogic

: Stock is currently plunging 16.22% to $4.08 after cutting its first-quarter revenue forecast. 3) 3D Systems

: Trading 12.7% to the downside at $49.34. The stock posted a new 52-week high last Friday. 4) Tenet Healthcare

: Equity continues to slide, taking a 12.05% hit to $6.64 after filing a lawsuit against Community Health Systems

alleging improper admission of patients in order to garner revenue. 5) Star Scientific

: Currently down 9.93% to $3.63. The stock has dropped nearly 30% since last Monday.