Top Percentage Gainers and Losers as of 2pm 5/10/11 (FONR, CKXE, TRAK, CPE, SREV, FFHL, MED, FOSL, BMTI, HEAT, PANL, MOBI, MNKD, VRML, USAT, ETM)

Best 1) Fonar FONR: Trading up 27.3% from yesterday's close to $2.77. Fonar reported a 15% increase in revenue to $8.7 million for the third quarter. Net income came in at $0.20 per share versus $7.5 million for the same period last year. Shares set a new 52-week high of $3.20 earlier in the session. 2) CKX CKXE: Trading up 22.7% from yesterday's close to $5.46. CKX is set to be acquired by Apollo Global Management LLC for $5.50 per share in cash. The deal is valued at $509 million. 3) Dealer Track Holdings TRAK: Trading up 20.4% from yesterday's close to $25.65. Dealer Track reported Q1 earnings of $0.59 per share versus a loss of $0.06 per share for the same period last year. Adjusted net income came in at $0.18 per share versus estimates of $0.11 per share. Shares set a new 52-week high of $26.46 earlier in the session. 4) Callon Petroleum CPE: Trading up 19.7% from yesterday's close to $7.40. Callon reported Q1 earnings of $0.12 per share versus estimates of $0.03 per share. Revenue came in at $25.4 million versus estimates of $24 million. 5) ServiceSource International SREV: Trading up 18.5% from yesterday's close to $17.70. ServiceSource reported record Q1 revenue of $46.1 million, which is 43% higher than the same period last year. Q1 revenue came in at $46.1 million versus revenue of $32.2 million for the same period last year. Other Notable Gainers Fuwei Films FFHL: Trading up 13.4% from yesterday's close to $4.15. Fuwei Films reported Q1 earnings of $0.28 per share versus earnings of $0.003 (RMB 0.02) for the same period last year. MEDIFAST MED: Trading up 14.6% from yesterday's close to $23.32. MEDIFAST reported Q1 earnings of $0.44 per share versus estimates of $0.41 per share. Revenue came in at $74.3 million versus estimates of $73.9 million. Fossil FOSL: Trading up 12.4% from yesterday's close to $105.65. Fossil reported earnings of $0.86 per share versus estimates of $0.66 per share. The company was raised from Hold to Buy at S&P Equity Research. Worst 1) BioMimetic Therapeutics BMTI: Trading down 35.2% from yesterday's close to $8.68. Augment, BioMimetic's bone graft product is to be the subject of a critical regulatory meeting. On Thursday, the U.S. Food and Drug Administration is to decide whether or not to recommend the approval of Augment. BioMimetic posted a loss of a $0.28 per share versus estimates of a $0.35 loss. 2) SmartHeat HEAT: Trading down 26.7% from yesterday's close to $2.31. SmartHeat posted a Q1 loss of $0.10 per share versus a loss of $0.05 for the same period last year. Sales came in 16% lower from a year ago at $7.89 million. 3) Universal Display PANL: Trading down 18.3% from yesterday's close to $46.25. Universal Display reported a Q1 loss of $0.08 per share versus estimates of a $0.03 loss. 4) Sky-mobi MOBI: Trading down 15.4% from yesterday's close to $11.28. Sky-mobi reported Q4 earnings of $0.01 versus estimates of $0.04. Sales came in at $27.1 million versus estimates of $24.85 million. 5) MannKind MNKD: Trading down 14.1% from yesterday's close to $3.77. Numerous reports regarding Mannkind's dwindling cash balance have been circulating today. Other Notable Losers Vermillion VRML: Trading down 10.9% from yesterday's close to $3.51. Vermillion reported 1Q revenue of $431,000 versus $73,000 for the same period last year. USA Technologies USAT: Trading down 11% from yesterday's close to $2.26. USA Technologies reported Q3 sales of $5.5 million – a 50% increase for the same period last year. The company reported a loss of $0.11 per share versus a loss of $0.10 for the same period last year. Entercom Communications ETM: Trading down 11.4% from yesterday's close to $9.04. Entercom was cut from Buy to Hold by Gilford Securities.