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.

Analyst upgrades:

• CLSA upgraded Freeport McMoRan (FCX) to Buy from Sell and has a price target of $85 based on expectations for improved copper prices. The analyst believes China is mostly done with tightening measures and that downside in copper prices is limited.
• Jefferies upgraded Concur Tech (CNQR) to Buy from Hold due to improvements in corporate travel and structural growth drivers from international and SMB. The firm has a price target of $55 on the stock.
• Deutsche Bank upgraded ESCO Technologies (ESE) to Buy from Hold on expectations the company will announce a contract with SoCal Gas within two months. The firm upped its target for shares to $35 from $33.
• Wells Fargo (WFC) was raised to Outperform from Market Perform at FBR Capital.
• Human Genome (HGSI) was upgraded to Outperform from Neutral at Baird.
• Brown & Brown (BRO) was upgraded to Neutral from Underweight at JP Morgan.

Analyst downgrades:

• Canaccord downgraded Netflix (NFLX) to Hold from Buy following the Q2 report and has a $107 price target on the stock. The firm is growing more cautious on ARPU pricing pressure, higher churn rates and higher SAC.
• Deutsche Bank downgraded Airgas (ARG) to Hold from Buy following the company's Q1 results due to valuation. The firm has a $65 price target for shares. Note shares were also downgraded at Soleil this morning.
• Goldman downgraded Piper Jaffray (PJC) to Neutral from Buy and lowered its price target to $35 from $46. The firm said Piper's ROE remains below peers.
• AMB Property (AMB) was downgraded to Neutral from Buy at BofA/Merrill.
• Odyssey Healthcare (ODSY) was downgraded to Negative from Neutral at Susquehanna.
• Trina Solar (TSL) was downgraded to Outperform from Strong Buy at Raymond James.

Analyst initiations:

• BofA/Merrill started Cognizant Technology (CTSH) with a Neutral rating.
• Stifel Nicolaus initiated Brigham Exploration (BEXP) with a Buy rating and $24 target.
• ThinkEquity assumed Dick's Sporting (DKS) with a Buy rating.
• Petrohawk Energy (HK) was initiated with a Perform rating at Oppenheimer.
• E.ON AG (EONGY) was initiated with a Buy rating at RBS.
• Atlas Energy (ATLS) was initiated with an Outperform rating at BMO Capital.

Piper Jaffray Companies (NYSE: PJC), a Minneapolis-based investment banking firm, serves the capital needs of a wide array of corporate and governmental entities.

With operations in corporate finance, municipal finance, institutional equity, bond sales, trading and private placements, Piper serves clients throughout the United States and Europe. Recently, the company made a major investment in China, viewing that country as having high levels of capital needs, as well as a growing institutional investor base.

Piper Jaffray has its roots in the commercial paper business, tracing its history back to the 1880s. For much of its 20th century existence, Piper operated as a regional retail distribution securities company.

Following a stressful period as a wholly owned subsidiary of U.S. Bancorp (NYSE: USB), the remaining principals of the former Piper Jaffray unwound the merger and emerged as an independent securities firm without a retail distribution arm.

MOST NOTEWORTHY: Norfolk Southern, OfficeMax and PetroQuest Energy were today's noteworthy upgrades:

• JP Morgan upgraded Norfolk Southern (NYSE:NSC) to Overweight from Neutral based on leverage to export coal and the tighter truckload market.
  
• Credit Suisse upgraded OfficeMax (NYSE:OMX) to Outperform from Neutral citing the company's clean balance sheet, positive cash flow, and limited downside.
  
• UBS upgraded PetroQuest Energy (NYSE:PQ) to Buy from Neutral citing valuation and production catalysts. The company's target was raised to $30 from $25.

OTHER UPGRADES:

• Piper Jaffray (NYSE:PJC) was upgraded to Market Weight from Underweight at Thomas Weisel.
  
• Corning(NYSE:GLW) was upgraded at Merrill to Buy from Neutral.
  
• HSBC lifted BP Plc (NYSE:BP) to Overweight from Neutral.
  
• Calgon Carbon (NYSE:CCC) was raised to Hold from Sell at Morgan Joseph.

MOST NOTEWORTHY: HSBC Holdings, Piper Jaffray and Rogers Communications were today's noteworthy downgrades:

• ABN Amro downgraded shares of HSBC (NYSE: HBC) to Sell from Hold as they believe the realignment of the American business could take 3-5 years. ABN expects a $2.5B loss in 2008.
  
• Wachovia downgraded Piper Jaffray (NYSE: PJC) to Market Perform from Outperform citing weaker market conditions.
  
• CIBC downgraded Rogers Communications (NYSE: RCI) to Sector Performer from Outperformer. Shares were also downgraded to Peer Perform from Outperform at Bear Stearns following the Canadian government's new wireless spectrum rules to only allow new entrants to bid in the upcoming AWS spectrum auction in May 2008.

OTHER DOWNGRADES:

• Tyler Tech (NYSE: TYL) was downgraded to Neutral from Buy at Banc of America.
  
• SunTrust lowered its rating on Aeropostale (NYSE: ARO) to Neutral from Buy.
  
• Piper downgraded State Auto Financial (NASDAQ: STFC) and Donegal Group (NASDAQ: DGICA) to Sell from Neutral.