Gapping up on strong earnings/guidance:

CAAS +17.7%, BX +8.8%... Other news: NITE +14.6% (announces Goldman Sachs has agreed to purchase a minority equity interest in direct edge ECN), CLWT +15.2% (co announces that its associated co has recently been awarded four contracts totally $7.3 mln), GILT +11.2% (Bloomberg.com reports GILT jumped 14% in Israel, as Highs Communications plans a bid for GILT at $12 a share, according to Yediot Ahronot), AVGN +8.7% (initiates U.S. clinical development for AV411), BEAS +6.1% (upgraded at BofA, Bear Stearns and UBS), VCLK +5.6% (upgraded to Overweight at JP Morgan), GS +2.2% (says performance of GEO fund has suffered significantly, announces various investors invest $3 bln in fund).