In reaction to strong earnings/guidance:

SVA +31.1%, CALM +8.4%, CDS +7.9%... M&A news: ANST +32.4% (to be acquired by ANSYS for $30.29/share in cash and stock), GILT +4.4% (to be acquired for $11.40/share in cash by an American and Israeli investment group)... Select European financial names showing strength: UBS +2.8% (could ask for more capital at annual meeting - WSJ), BCS +1.4%, HBC +1.4%, CS +1.2%... Other news: IACI +6.9% (judge rules for IACI in Liberty dispute), ASTI +6.2% (announces that the co has achieved its Q108 manufacturing milestone of Initial Operating Capability on its 1.5 megawatt production line), ALNY +5.5% (forms new agreement with Tekmira related to the planned Tekmira-Protiva business combination), MXWL +5.1% (modestly rebounding following Friday's 20%+decline), NE +4.3% (adds $4.0 bln in prospective rev backlog from five deepwater rigs in Brazil), SOL +3.4% (modestly rebounding following Friday's ~10% decline), EPD +2.8% (Cramer makes positive comments on MadMoney), AMAG +2.1% (Cramer makes positive comments on MadMoney), CRXL +2.0% (announces that its rabies monoclonal antibody combination has entered a Phase II clinical trial in the US), TXT +2.0% (receives $10.4 bln multi-year V-22 Osprey contract), MEDX +1.3% (announces that it will receive a milestone payment for an undisclosed amount from its licensing partner, Novo Nordisk A/S), BSX +1.1% (TAXUS Express stent shows similarly low re-intervention rates in diabetic patients compared to non-diabetics in ARRIVE 1 and 2 registries)... Analyst upgrades: IRM +3.4% (upgraded to Buy from Neutral at Merrill), OPLK +1.0% (upgraded to Neutral at Merriman), MOD +1.0% (upgraded to Neutral at Baird).