Analyst Upgrades

• Exxon Mobil (XOM) and BB&T (BBT) to outperform from perform at Oppenheimer.
• D.R. Horton (DHI) upgraded to outperform from market perform at Wells Fargo.
• Meritage Homes (MTH), Old Dominion Freight (ODFL) and Heartland Payment (HPY) to outperform from market perform at Wells Fargo.
• Toll Brothers (TOL) to overweight from equal weight at Barclays.
• Hershey (HSY) to buy from neutral at Janney Capital.
• UnitedHealth (UNH), Cigna (CI) and Allscripts (MDRX) to buy from hold at Deutsche Bank.
• Nationwide Health (NHP) to outperform from market perform at JMP Securities.
• Reynolds American (RAI) to buy from neutral at UBS.
• Adtran (ADTN), PG&E (PCG) and Wisconsin Energy (WEC) to overweight from equal weight at Morgan Stanley.

Analyst Upgrades

• Best Buy (BBY) was upgraded to top pick from outperform at RBC Capital, as the firm thinks the company's valuation is inexpensive while it will perform well during the holiday season.
• Credit Suisse upgraded CF Industries (CF) to outperform from neutral, citing favorable fundamentals in nitrogen and phosphate markets.
• Canadian Solar (CSIQ) was raised to buy from hold by Jefferies, which cited expectations for higher selling prices next year and cost savings from sourcing more components internally.
• BMO Capital upgraded RC2 Corp. (RCRC) to outperform from market perform as the firm believes that RC2's baby products are performing better than previously expected.
• Ericsson (ERIC) was upgraded to neutral from underperform at BofA/Merril.
• ProLogis (PLD) was upgraded to buy from hold at Stifel Nicolaus.
• Constellation Energy (CEG) was upgraded to outperform from neutral at Macquarie.

Sanofi-Aventis (SNY - option chain) stock is trading lower today after the company announced this morning that it has settled patent infringement suits with Hospira (HSP) and Par Pharmaceutical Companies (PRX) related to certain generic versions of its cancer treatment Eloxatin. The settlements will stop HSP and PRX from selling generic versions of Eloxatin from late-June until August 2012. If you think this stock won't be rising too far in the coming months, then it could be a good time to look at a bearish hedged play on SNY.

This morning, SNY opened at $36.51. So far today the stock has hit a high of $36.69 and a low of $36.43. As of 12:10, SNY is trading at $36.69, down $0.51 (-1.4%). The chart for SNY looks neutral and S&P gives SNY a neutral 3 STARS (out of 5) hold ranking.

Analyst upgrades:

• American Express (NYSE:AXP) was upgraded to Market Perform from Underperform at FBR Capital, as the firm sees limited near-term downside in the stock. The firm raised its target price on the shares to $37 from $25.
  
• RBC Capital upgraded Estee Lauder (NYSE:EL) to Outperform from Sector Perform. Target to $44 from $34. UBS upgraded Nestle on expectations the company will begin returning cash to shareholders via buybacks and dividends.
  
• Piper Jaffray raised Dicks Sporting (NYSE:DKS) to Neutral from Underweight following positive channel checks and raised its target on the shares to $28 from $18.
  
• Sohu.com (NASDAQ:SOHU) was upgraded to Neutral from Sell by Pali Capital.
  
• Halliburton (NYSE:HAL) was raised to Buy from Hold by Natixis.
  
• Sunpower (NASDAQ:SPWRA) was upgraded to Neutral from Underperform at Macquarie.
• China Automotive (NASDAQ:CAAS) was upgraded to Buy from Neutral at Merriman.

MOST NOTEWORTHY: Siemens AG (SI), Business Objects (BOBJ), Continental Airlines (CAL), Lawson Software (LWSN) and Trump Entertainment Resorts, Inc (TRMP) were today's noteworthy upgrades:

• Lehman upgraded shares of Siemens AG (NYSE: SI) to Overweight from Neutral reflect the potential major portfolio reorganization over the next few years as well as the strong momentum in the group.

• UBS upgraded shares of Business Objects (NASDAQ: BOBJ) to Buy from Neutral to reflect easy compares in Q2 and signs of improving underlying European demand.

• Soleil upgraded Continental (NYSE: CAL) to Buy from Hold as they believe better-than-expected June consolidated revenue growth suggests strong enough revenue momentum to offset above-average domestic capacity growth affecting its important Newark hub.

• Matrix upgraded Lawson Software (NASDAQ: LWSN) to Sell from Strong Sell to reflect increasing revenues from software licenses.

• Brean Murray upgraded shares of Trump Entertainment (NASDAQ: TRMP) to Buy from Hold citing recent share weakness, improving trends, potential monetization of excess real estate and the use of the Trump brand outside of Atlantic City...

OTHER DOWNGRADES:

• Northstar Realty Finance Corp (NYSE: NRF) was upgraded to Outperform from Market Perform at Wachovia.

• Goldman raised Par Pharmaceuticals' (NYSE: PRX) rating to Neutral from Sell.

• Bernstein upgraded Avon Products (NYSE: AVP) to Market Perform from Underperform.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).