Unrest in Greece along with a drop in consumer sentiment sent the markets tumbling during the midday with the Dow plummeting 138 points to 12,751. Nasdaq dropped 24 points to 2902.

On the upside

Shares of Imperial Sugar (Nasdaq: IPSU) continued rising after narrowing first quarter losses yesterday.

A123 Systems (Nasdaq: AONE) will provide six Grid Battery Systems to Northern Powergrid in the U. K.

Exelixis (Nasdaq: EXEL) priced its public offering of 11 million common shares at $5.50 per share.

On the downside

Delays in securing a construction permit have placed a $646 million loan guarantee on hold for First Solar (Nasdaq: FSLR) prompting a downgrade.

Exide Technologies (Nasdaq: XIDE) reported higher third quarter earnings but revenue dropped to fall short of expectations.

True Religion (Nasdaq: TRLG) disappointed with lower fourth quarter earnings that missed analyst estimates and forecast 2012 results below expectations.

In the broad market, declining issues outpaced advancers by a margin of more than 7 to 2 on the NYSE and by 3 to 1 on Nasdaq. The Russell 2000 which tracks small cap stocks fell 10 points to 814.On the upside

Shares of Imperial Sugar (Nasdaq: IPSU) continued rising after narrowing first quarter losses yesterday.

A123 Systems (Nasdaq: AONE) will provide six Grid Battery Systems to Northern Powergrid in the U. K.

Exelixis (Nasdaq: EXEL) priced its public offering of 11 million common shares at $5.50 per share.

On the downside

Delays in securing a construction permit have placed a $646 million loan guarantee on hold for First Solar (Nasdaq: FSLR) prompting a downgrade.

Exide Technologies (Nasdaq: XIDE) reported higher third quarter earnings but revenue dropped to fall short of expectations.

True Religion (Nasdaq: TRLG) disappointed with lower fourth quarter earnings that missed analyst estimates and forecast 2012 results below expectations.

In the broad market, declining issues outpaced advancers by a margin of more than 7 to 2 on the NYSE and by 3 to 1 on Nasdaq. The Russell 2000 which tracks small cap stocks fell 10 points to 814.