The Dow Jones Industrial Average (NYSEARCA:DIA) is lower 43 points, or .35%, to 12,419. The S&P 500 (NYSEARCA:SPY) is down 2 points, or .15%, to 1,290, and the Nasdaq (NASDAQ:QQQ) is up 3.63 points, or 1.14%, to 2,706. Brokerage analysts reviewed the following companies today and shared their insights into an upgrade or a downgrade:

Dendreon Corp. (NASDAQ:DNDN): Dendreon makes the mark. RBC Capital reports a drug pricing panel in Germany grades Johnson & Johnson’s (NYSE:JNJ) Zytiga favorable since it prolongs survival.  RBC Capital feels that Dendreon’s Provenge, which prolongs survival for several months will also get a favorable grade. The firm maintains a Sector Perform.

Life Technologies Corporation (NASDAQ:LIFE): Credit Suisse upbeat about new products and upgrades at Life Technologies’ (NASDAQ:LIFE) and Illumina (NASDAQ:ILMN) and is downright bullish on the sequencing market for long-term. The firm reiterated Life Technologies as its top pick and raised target from $47 to $53 and raised Illumina’s  target from $30 to $34.

Summer Infant, Inc. (NASDAQ:SUMR): Roth Capital lowers target on Summer Infant.  The company’s pre-announced weaker than expected fourth quarter results. The firm still sees strong fundamental and reiterates a Buy and lowers target from $12 to $10.

Denbury Resources Inc. (NYSE:DNR): Morgan Keegan revises Focus List.  Morgan Keegan’s latest changes to its Focus list add Denbury Resources (NYSE:DNR), VeriFone (NYSE:PAY), DineEquity (NYSE:DIN), and Anixter (NYSE:AXE) while it drops RF Micro Devices (NASDAQ:RFMD), Qualcomm (NASDAQ:QCOM) and Visa (NYSE:V).

OCZ Technology Group Inc. (NASDAQ:OCZ): OCZ Technology’s SANRAD product set for success. OCZ’s combined Z-drive/SANRAD platform has potential  to become a could become a vital part of vSpere in the near-term.  Product adoption could expand long term markets for OCZ. The firm sees expand margins in fiscal year 2012 as it reiterates a Buy.

PHH Corporation (NYSE:PHH): FBR Capital says PHH Corp. eases financing concerns. PHH Corp.’s recent offer of $150 million convertible debt should ease ongoing operations concerns, but FBR Capital feels the deal is too dilutive. FBR reiterates an Outperform with a $20 target.

Buckeye Technologies Inc. (NYSE:BKI): RBC Capital raises target for Buckeye Technologies. RBC Capital sees expansion and higher company margins. The firm maintains an Outperform and raises target from $37 to $44.

IPG Photonics Corporation (NASDAQ:IPGP): Piper Jaffray credits managment with IPG Photonics rally. Even with orders down in September and October, management at IPG Photonics see improvements on the horizon creating a rally yesterday, according to Piper Jaffray. IPG Photonics finished 2011 strong and the firm says growth is intact keeping an Overweight.

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