Rioting in Greece sparked a sell-off in late afternoon trading to weigh the markets down to a lower close with the Dow dropping 72 points to 11,504. Nasdaq tumbled 53 points to 2604.

On the upside

Tekelec (Nasdaq: TKLC) reported preliminary third quarter earnings and revenue that were stronger than expected.  

Shares of Zeltiq Aesthetics (Nasdaq: ZLTQ) surged on its first trading day. 

Intuitive Surgical (Nasdaq: ISRG) impressed with sharply higher third quarter earnings as revenue surged. 

On the downside

Green Mountain Coffee Roasters (Nasdaq: GMCR) announced plans to expand operations at four sites in Vermont but the stock price dropped.

Cree (Nasdaq: CREE) disappointed with sharply lower first quarter earnings and forecast second quarter results well below analyst estimates.   

Comerica (Nasdaq: CWTR) priced its offering of 26.5 million common shares at the discounted price of $0.85 per share.

In the broad market, declining issues outpaced advancers by a margin of 5 to 2 on the NYSE and by more than 3 to 1 on Nasdaq. The Russell 2000 which tracks small cap stocks plunged 14 points to 694.