ALL Allstate Corporation

•    Allstate Corporation (NYSE:ALL) reported Q2 loss of $1.23, lower than the Zacks Consensus Estimate of $1.53 per share. Revenues for the quarter increased by 5% year-over-year to $8.08 billion, exceeding the Zacks Consensus Estimate of $6.91 billion

•    Auxilium Pharmaceuticals (NASDAQ:AUXL) posted a Q2 loss of $0.11 per share, less than the analysts' estimate for a loss of $0.19 per share. Revenues for the quarter increased 30.5% year-over-year to $65.9 million

•    Humana (NYSE:HUM) reported Q2 EPS of $2.50, beating the Zacks Consensus Estimate of $2.07 per share. Revenues increased 8.1% year-over-year to $9.28 billion, lower than the Zacks Consensus Estimate of $9.32 billion

•    Acorda Therapeutics (NASDAQ:ACOR) posted Q2 EPS of $0.01. Revenues for the pharma company rose 52.6% year-over-year to $65.3 million

•    Share prices of Old National Bancorp. (NYSE:ONB) gained 7.25% after the bank-holding company posted second quarter earnings results that came in above expectations

•    PAETEC Holding Corp (NASDAQ:PAET) agreed to be acquired by Windstream Corp for a deal valued at $891 million. Reacting to the news, shares of PAETEC increased 20.59%

•    Share prices of blood-processing device maker, Haemonetics Corp. (NYSE:HAE) fell 10.90% after the company lowered its earnings forecast for the 2011 fiscal

•    Analysts at Jefferies upgraded shares of Jazz Pharmaceuticals (NASDAQ:JAZZ) to "Buy" rating from "Hold" rating and also increased the target price of the company to $52 from $29

•    Shares of Key Energy (NYSE:KEG) were upgraded by Weeden to “Buy” rating from "Hold” rating with a target price of $26.00