Option traders appear to be setting up for a bullish move on Rehabcare Group Inc. (RHB). Traders plowed into 2,192 new call option contracts -- 18.9 times the average volume -- on the stock on Tuesday. And we know that traders were eager to get into this trade because 100% of the trades came in on the ask price.

Rehabcare is sitting just above support at $16. The stock closed Tuesday at $16.56, up 23.16% during the past month.

Analyst Upgrades

• BMO Capital upgraded Concho (CXO) to outperform from market perform and has a $73 price target on the stock. The firm cites valuation and sustainable growth for the upgrade.
• Sterne Agee upgraded City Holding (CHCO) to buy from neutral based on valuation. The firm has a $34 target on the stock.
• UBS upgraded Werner Enterprises (WERN) to neutral from sell based on valuation. The firm raised its price target to $21.50 from $21.
• Nvidia (NVDA) was upgraded to equal weight from underweight at Morgan Stanley.
• Colfax (CFX) was upgraded to neutral from underperform at BofA/Merrill.
• Camden Property (CPT) was upgraded to top pick from outperform at RBC Capital.

Here are some highlights from last week's earnings coverage from BloggingStocks:

• Activision Blizzard Inc. (NASDAQ: ATVI) said its Q3 profit declined despite the popularity of Guitar Hero.
• Blackboard Inc. (NASDAQ: BBBB) said Q3 revenue surged and its offered impressive cash flow numbers.
• Boston Beer Co. Inc. (NYSE: SAM) easily beat Q3 earnings estimates and raised its full-year guidance.
• Cisco Systems Inc. (NASDAQ: CSCO) lower Q1 results topped estimates and sent shares higher.
• Cognizant Technology Solutions Inc. (NASDAQ: CTSH) was upgraded following its strong Q3 results.
• Corporate Executive Board (NASDAQ: EXBD) received an analyst's upgrade following the Q3 results.

Education Management Corp., a for-profit provider of post-secondary education, has hit the IPO market once again (the first public offering was in the mid 1990s). This time, the company has issued 20 million shares at $18 per share. The price range was $18 to $20.

Education Management owns 92 schools across the country, including organizations like the Art Institute of Pittsburgh, Brown Mackie Colleges and Argosy University. In all, there are about 111,000 students.

Interestingly enough, Education Management went private back in June 2006, in a $3.4 billion deal. The private equity sponsors included Goldman Sachs (NYSE: GS) and Providence Equity.