The markets extended its losses during the midday with the Dow collapsing 222 points to 11,732 over concerns that Greece will vote down the European rescue plan. Nasdaq sank 60 points to 2623.

On the upside

Yahoo (Nasdaq: YHOO) will pay a premium of approximately $270 million to acquire Interclick (Nasdaq: ICLK).  

American Tower (NYSE: AMT) swung to a loss for the third quarter but revenue climbed and the company lifted its full year guidance. 

Third quarter earnings surged for Akorn (Nasdaq: AKRX) as revenue soared. 

On the downside

Shares of Governor and Company of The Bank of Ireland (NYSE: IRE) and ING (NYSE: ING) tumbled after Greece announced a referendum on the European bailout plan.

Third quarter earnings for General Cable (NYSE: BGC) plunged to fall far short of analyst expectations and the company forecast current quarter revenue below estimates.   

Amedisys (Nasdaq: AMED) swung to a wider than expected loss for the third quarter and lowered its full year guidance.

In the broad market, declining issues outpaced advancers by a margin of nearly 6 to 1 on the NYSE and by 9 to 2 on Nasdaq. The Russell 2000 which tracks small cap plunged 17 points to 723.