Analyst Calls

• Medtronic (MDT) to buy from neutral and 1-800-Flowers.com (FLWS) to neutral from sell at Goldman.
• CarMax (KMX) to outperform from perform at Oppenheimer.
• Points International (PTSEF) to buy from neutral at Merriman.
• Nokia (NOK) to market perform from underperform at Morgan Keegan.
• Amdocs (DOX) to overweight from equal weight at Barclays.
• Western Alliance (WAL) to outperform from sector perform at RBC Capital.
• Carbo Ceramics (CRR) to outperform from market perform at BMO Capital.
• Rackspace (RAX) to buy from hold at Benchmark Co.
• Brinker (EAT) to equal weight from underweight at Morgan Stanley.

Analyst upgrades:

• Thomas Weisel upgraded PerkinElmer (NYSE: PKI) to Overweight from Market Weight on valuation as it sees limited downside to consensus estimates. The firm raised its target on shares to $20 from $18.
• Jefferies upgraded WuXi PharmaTech (NYSE: WX) to Hold from Underperform following the Q2 results as it believes the company's cross-selling strategy is paying off. The firm raised its target on shares to $12 from $5.
• FBR Capital upgraded J. Crew (NYSE: JCG) to Outperform from Market Perform to reflect the company's trend-right product, inventory control, unit growth, and strong management. The firm raised its target on shares to $36 from $25.
• Popular (NASDAQ: BPOP) was upgraded to Buy from Neutral at B. Riley.
• Pan American Silver (NASDAQ: PAAS) was upgraded to Buy from Neutral at UBS.
• HearUSA (AMEX: EAR) was upgraded to Buy from Hold at Roth Capital.