Analyst upgrades:

• FBR Capital upgraded Overseas Shipholding (NYSE: OSG) to Outperform from Market Perform following the Q3 results as it believes the worst quarters are behind the company. The firm raised its target on shares to $48 from $35.
• Deutsche Bank upgraded Corporate Executive Board (NASDAQ: EXBD) to Hold from Sell following the Q3 results to reflect the company's lower costs. The firm raised its target on shares to $22 from $18.
• RBC Capital upgraded Enbridge (NYSE: EEQ) to Sector Perform from Underperform after the company's partnership produced significantly higher than expected DCF. In addition, the firm raised its price target by $5 per unit to $46 to reflect an improved distribution schedule and more favorable debt leverage.
• Royal Dutch Shell (NYSE: RDS.A) was upgraded to Neutral from Underperform at Credit Suisse.
• BioForm Medical (NASDAQ: BFRM) was upgraded to Overweight from Neutral at Piper Jaffray.
• Alliance Data Systems (NYSE: ADS) was upgraded to Buy from Neutral at SunTrust.

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

• Activision Blizzard Inc. (NASDAQ: ATVI) reported better-than-expected Q2 results, sending shares higher.
• Blackstone Group (NYSE: BX) said it swung to a Q2 profit despite a dearth of leveraged buyouts.
• CBS Corp. (NYSE: CBS) Q2 earnings declined but still topped estimates, sending shares higher.
• Coinstar Inc. (NASDAQ: CSTR) reported stellar Q2 results driven by its the popularity of RedBox.
• Clorox Co. (NYSE: CLX) posted solid Q4 earnings but said revenues were flat due to currency effects.
• Duke Energy Corp. (NYSE: DUK) lower Q2 earnings beat expectations by a penny but revenue fell short.

• Baird upgraded Nike (NYSE: NKE) to Outperform from Neutral on expectations the company will benefit from the drop in the U.S. dollar and continued solid trends in athletic footwear. The firm raised its target on shares to $69 from $61.
  
• Deutsche Bank upgraded Temple-Inland (NYSE: TIN) to Buy from Hold as it believes the company is well positioned for cyclical turnaround in the Paper/Building Products space. The firm raised its target on shares to $19 from $11.
  
• Goldman upgraded Diageo (NYSE: DEO) to Buy from Neutral to reflect the current valuation and the company's exposure to emerging markets.
• Deutsche Bank (NYSE: DB) was upgraded to Hold from Sell at ING Group.
  
• Banco Santander (NYSE: STD) was lifted to Buy from Hold at Deutsche Bank.
  
• Jackson Hewitt (NYSE: JTX) was upgraded at Oppenheimer to Outperform from Perform.

• Citigroup upgraded Phillips-Van Heusen (NYSE: PVH) to Buy from Hold following the company's Q1 results as it believes management is executing well in the current environment and that the company could meet the high end of guidance. The firm raised its price target to $24 from $19.
  
• Friedman Billings upgraded Cliffs Natural (NYSE: CLF) to Outperform from Market Perform as it believes capacity utilization has stabilized and CLF's valuation is attractive at current levels. The firm raised its price target to $27 from $23.
  
• Thomas Weisel believes demand at Microchip's industrial (NASDAQ: MCHP) customers has troughed and that market share loss concerns are unwarranted. The firm upgraded shares to Overweight from Market Weight and raised its target to $27 from $19.
• CBS Corp (NYSE: CBS) was upgraded to Neutral from Sell at Goldman.
  
• U-Store It Trust (NYSE: YSI) was raised to Outperform from Neutral at Baird.
  
• Ener1 (NASDAQ: HEV) was lifted at Banc of America/Merrill to Buy from Neutral.

• Societe General upgraded BASF AG (OTC: BASFY) to Buy from Hold. The firm believes the bad news is out and that BASF has a strong market position.
  
• Pali Capital upgraded Hot Topic (NASDAQ: HOTT) to Buy from Neutral based on the ongoing merchandise catalyst, the opportunity to reclaim the mainstream kid and closing underperforming stores, which create the most favorable conditions in the last 5+ years.
  
• Stanford upgraded L-1 Identity (NYSE: ID) to Buy from Hold on valuation, and the firm sees little risk to the company from the Obama Administration.
• Gymboree (NASDAQ: GYMB) and Windstream (WIN) were raised to Overweight from Neutral at JP Morgan.
  
• Doral Financial (NYSE: DRL) was upgraded at B. Riley to Buy from Neutral.
  
• Alumina (NYSE: AWC) was upgraded to Buy from Neutral at UBS.

• Credit Suisse downgraded Targanta (NASDAQ: TARG) to Underperform from Outperform following the FDA Panel's rejection of Oritavancin.
  
• Citigroup downgraded BASF AG (OTC: BASFY) to Sell from Hold and sees no reason to own the stock following the company's profit warning. Shares were also downgraded at WestLB to Hold from Add.
  
• Deutsche Bank downgraded shares of Amedisys (NASDAQ: AMED) to Hold from Buy and lowered its target to $53 from $75 on concerns over the company's deteriorating A/R aging trends.
• VeriFone Holdings (NYSE: PAY) and Navios Maritime (NYSE: NMM) were lowered to Neutral from Overweight at JP Morgan.
  
• NTT DoCoMo (NYSE: DCM) was downgraded at Citigroup to Hold from Buy.

• Needham expects shares of Cepheid (NASDAQ: CPHD) to be driven by continued market penetration in the hospital acquired infection market, new test introductions, GeneXpert Infinity sales, and molecular diagnostics growth from sales outside of traditional molecular testing areas. Shares were initiated with a Buy rating and $21 target.
  
• Needham also initiated Gen-Probe (NASDAQ: GPRO) with a Hold rating and expects market share gains for the company when PANTHER is approved in 2010/2011.
  
• William Blair believes Harbin Electric (NASDAQ: HRBN) is an "interesting" opportunity for exposure to rapid growth in infrastructure within the People's Republic of China. The firm started shares with a Market Perform rating.
• Boston Scientific (NYSE: BSX) was initiated with a Buy rating and $11 target at UBS.
  
• NutriSystem (NASDAQ: NTRI) was initiated with a Neutral rating at Janney Montgomery.
  
• Ener1 (NYSE: HEV) was assumed at JMP Securities with an Outperform rating and $9 target.