In reaction to strong earnings/guidance:

In reaction to strong earnings/guidance: BIG +18.5%, MFB +16.4%, CSIQ +9.4%, CAP +6.5%, SMTC +6.2% (announces new $50 mln stock buyback plan), DIET +2.6%, CXR +2.2%, PFE +1.2%... M&A news: PKTR +31.9% (Elliot Associates offers to aquire for $5.50/share in filing)... Select solar stocks showing strength following CSIQ earnings: SOLF +3.0%, SPWR +1.8%, ESLR +1.8%... Other news: PANC +39.1% (announces discovery of bevirimat patient response predictors; completed phase 2b dose escalation study determines optimal dose range and upgraded to Outperform at Bear Sterns), SCON +7.7% (closes on $15.0 million investment by Hunchun BaoLi Communication), CYD +7.1% (wins major contract for Beijing Olympics), TIBX +7.0% (Citigroup says better than 50/50 chance co is acquired in next 12 mos), CHU +6.4% (traded higher in overseas trading), ATML +6.2% (still checking), PCOP +4.9% (collaboration with Celgene Corporation advances compound into Phase 1 clinical development), TS +4.1% (still checking), AMLN +4.1% (still checking), TMA +3.9% (modestly rebounding after 60% drop over past two days), ABK +3.7% (unlikely to announce any capital raising deal Tuesday, according to source - Reuters), DIVX +3.3% (announces stock repurchase program of up to $20 mln of common stock), UBS +2.4% (still checking), AVA +1.8% (requests increase in Electric and Natural gas prices in Washington), BSC +1.7% (CITIC confirms talks to reopen Bear Stearns deal - Reuters.com), C +1.3% (WSJ reports co isn't looking to raise capital)... Analyst upgrades: KFY +5.1% (hearing removed from Conviction Sell List at tier 1 firm), OMPI +4.8% (upgraded to Outperform at Oppenheimer), FNM +2.2% (upgraded to Equal Weight at Morgan Stanley), PDC +2.0% (upgraded to Buy at Deutsche Bank), OPTM +1.8% (upgraded to Outperform at Oppenheimer), JBL +1.3% (upgraded to Neutral at Merrill), ELN +1.3% (added to Focus List and initiated with Outperform at Credit Suisse), LOGI +1.0% (initiated with Buy at Citigroup), MSFT +0.4% (initiated with Buy at Jefferies).