Analyst Upgrades

• Argus upgraded Weyerhaeuser (WY) to buy from hold, citing the better-than-expected Q1 report and expectations that the company is about to be profitable. The firm has a $59 target on the stock.
• Weeden upgraded Cameron (CAM) to buy from hold as it views the recent sell-off as overdone.
• Oppenheimer upgraded Mobile Mini (MINI) to outperform from perform based on valuation and what the firm sees as the company's attractive risk/reward ratio. The firm set a $25 target.
• Johnson Controls (JCI) was upgraded to buy from hold at Deutsche Bank.
• EnerNOC (ENOC) was upgraded to buy from neutral at Janney Montgomery.
• Checkpoint (CKP) was upgraded to outperform from neutral at Baird.

MOST NOTEWORTHY: Texas Instruments, Check Point, Mobile Mini, Vineyard National Bancorp and TorreyPines were today's noteworthy downgrades:

• Jefferies downgraded shares of Texas Instruments (NYSE: TXN) to Hold from Buy, as they believe the company's fundamentals are weakening given the worse than anticipated share losses in the wireless segment. Shares were also lowered to Neutral from Overweight at JP Morgan, to Equal Weight from Overweight at Lehman, to Neutral from Outperform at Credit Suisse, and to Neutral from Buy at UBS to reflect the slowdown in the company's wireless growth.
  
• Check Point Software (NASDAQ: CHKP) was downgraded to Hold from Buy at Jefferies on valuation and highlights the difficult spending environment in 1H08 as well as the company's tough comps.
  
• Deutsche Bank downgraded shares of Mobile Mini (NASDAQ: MINI) to Hold from Buy following the company's negative preannouncement.
  
• Oppenheimer lowered Vineyard National Bancorp (NASDAQ: VNBC) to Neutral from Buy to reflect slower pace of balance sheet growth and lower gain-on-sale income estimates.
  
• JMP Securities downgraded TorreyPines (NASDAQ: TPTX) to Market Outperform from Strong Buy and said Tezampanel's lack of dose response and statistically significant pain free response will keep the stock in the "show me" category.

OTHER DOWNGRADES:

• JP Morgan downgraded ConocoPhillips (NYSE: COP) to Underweight from Neutral and Marathon Oil Corporation (NYSE: MRO) to Neutral from Overweight.
  
• UBS downgraded Zions Bancorporation (NASDAQ: ZION) to Neutral from Buy.
  
• Citigroup downgraded Kellogg Company (NYSE: K) to Hold from Buy.
  
• ThinkEquity downgraded ValueClick (NASDAQ: VCLK) to Source of Funds from Buy.

MOST NOTEWORTHY: Alcoa (AA), Rigel Pharma (RIGL), Isis Pharma (ISIS), Cytokinetics (CYTK) and F5 Networks (FFIV) were today's noteworthy initiations:

• RBC believes shares are expensive, but feels Alcoa (NYSE: AA) has put itself in play and a bid for the company is possible. The firm resumed coverage with a Sector Perform rating and a $51 target.

• Credit Suisse initiated Rigel Pharmaceuticals (NASDAQ: RIGL) with an Outperform rating, believing R788 in ITP alone justifies current value, while RA and pipeline provide potential upside.

• Isis Pharmaceuticals (NASDAQ: ISIS) was initiated with a Buy rating and $17 target at Jefferies; the firm believes Isis's pipeline holds promise and appears under appreciated at the current valuation.

• Credit Suisse is positive on Cytokinetics (NASDAQ: CYTK) congestive heart failure candidate CK-453 and views the market as undeserved, starting shares with an Outperform rating and $15 target.

• Unterberg initiated shares of F5 Networks (NASDAQ: FFIV) with a Market Perform based on valuation...

OTHER INITIATIONS:

• Credit Suisse initiated Mobile Mini (NASDAQ: MINI) with a Neutral rating.

• Art Technology (NASDAQ: ARTG) was initiated with a Buy rating at Pacific Growth.

• Banc of America started Grant Prideco (NYSE: GRP) share with a Buy rating and $67 target.

• Morgan Joseph initiated Harris Stratex Networks (NASDAQ: HSTX) with a Buy rating.

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

MOST NOTEWORTHY: Salesforce.com, Inc (CRM), Black & Decker Corp (BDK), GenVec, Inc (GNVC) and RightNow Technologies (RNOW) were today's noteworthy initiations:

• With customers wanting an alternative to Microsoft (MSFT), Salesforce.com (NYSE: CRM) is making an attempt to be that alternative. It is rumored that management is in talks with Google (GOOG) about the two companies working together, a move that could include offering Google Apps via the AppExchange and integrating more closely those apps with Salesforce.com. Baird initiated shares of Salesforce.com with a Neutral rating and $49 target.

• Banc of America sees major headwinds from declining construction and slower consumer spending on housing and started shares of Black & Decker Corp (NYSE: BDK) with a Sell rating and $85 target.

• Merriman sees upside from strong mid- and late-stage clinical programs, key collaborations and potential for revenue generation, starting shares of GenVec (NASDAQ: GNVC) with a Buy rating.

• Baird finds Rightnow Technology (NASDAQ: RNOW) to be well-positioned within the customer service segment of the CRM market with above average L-T prospects and views the recent uncertainty as a buying opportunity. Baird started shares of RightNow with an Outperform rating and $19 target...

OTHER INITIATIONS:

• Jefferies initiated RadNet Inc (NASDAQ: RDNT) with a Buy rating.

• Lehman started Mobile Mini, Inc (NASDAQ: MINI) with an Equal Weight rating.

• Northwest Airlines Corp (OTC: NWACQ) was initiated with a Neutral rating at Goldman.

• Pacific Growth started shares of Javelin Pharmaceuticals Inc (AMEX: JAV) with a Buy rating.

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