The markets opened mixed with the Dow rising 34 points to 15,580 while Nasdaq slipped 5 points to 3594 as earnings season continued.

On the upside

Cisco Systems (Nasdaq: CSCO) will pay a premium of approximately $2.7 billion to acquire Sourcefire (Nasdaq: FIRE). 

CapitalSource (NYSE: CSE) reported lower second quarter earnings but loans increased. 

MGIC Investment (NYSE: MTG) swung to a profit for the second quarter.

On the downside

Alaska Communications (Nasdaq: ALSK) completed the formation of The Alaska Wireless Network with General Communication (Nasdaq: GNCMA).

Penn National Gaming (Nasdaq: PENN) fell to an unexpected loss for the second quarter.

STMicroelectronics (NYSE: STM) widened second quarter losses as revenue fell.   

In the broad market, advancing issues outpaced decliners by a margin of more than 5 to 3 on the NYSE while advancers barely edged out decliners by a slim margin on Nasdaq. The broader S&P 500 index held steady at 1695.