In reaction to strong earnings/guidance:

OPTV +25.0%, NCTY +15.8%, ROP +12.4%, ASGN +10.3%, EVVV +10.2%, HYC +10.0%, TSON +7.6% (upgraded to Overweight at Lehman), UEIC +6.4%, LYG +6.4%, STV +6.4%, ACTG +5.6%, SWIM +5.3%, RRGB +3.3%, VLCM +2.9%, MINI +2.8%, DTE +2.5%, NDSN +2.4%, ME +1.5%, ESRX +1.4%... M&A news: ESST +24.2% (to be acquired by Imperium Partners for $1.64/share in cash )... Select solar stocks trading higher following yesterday's decline: LDK + 4.8% (signs an eight-year wafer supply agreement with Hyundai Heavy Industries), AKNS + 2.2%, YGE + 1.9%, SOLF + 1.8%, JASO + 1.6%, SOLF + 1.5%... Other news: ATSI +33.5% (announces initial clinical results of stand-alone atrial fibrillation procedures using ats Cryomaze product line), FRPT +14.5% (awarded two contracts for ~123 mln - Department of Defense and $8 mln Order for Italian Ministry of Defense), OMEX +7.1% (enters motion in North Carolina Shipwreck Case), UBS +3.4% and HBC +3.3% (still checking), LLY +3.0% (FDA Grants Priority Review for Daiichi Sankyo, Lilly Drug, prasugrel), WWE +2.9% (boosts dividend by 50% to $0.36 from $0.24), VDSI +2.7% (modestly rebounding after yesterday's decline), ABAX +2.6% (will replace ALAB in the S&P SmallCap 600), LAVA +1.8% (authorizes common share repurchase program up to $20 mln of its common stock)... Analyst upgrades: SOL +11.9% (hearing upgraded to Buy at tier 1 firm), SDXC +8.1% (upgraded to Strong Buy at Raymond James ), DFS +3.8% (upgraded to Overweight at Morgan Stanley), MT +3.3% (upgraded to Buy at Deutsche Bank), DTV +3.2% (upgraded to Outperform at Cowen), IMCL +2.9% (upgraded to Outperform at Cowen), DISCA +1.7% (upgraded to Neutral at Credit Suisse), WMB +1.0% (upgraded to Outperform at RBC).