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• Banc of America downgraded shares of Dendreon Corp (NASDAQ: DNDN) to Sell from Neutral following the FDA's request for additional clinical data for Provenge.

• HSBC cut Whole Foods Market (NASDAQ: WFMI) to Underweight from Neutral after the second quarter miss.

• BMO Capital downgraded Rio Tinto plc (NYSE: RTP) to Underperform from Market Perform based on valuation.

• El Paso Corp (NYSE: EP) was cut to Sell from Buy at Matrix after the company's weak operating performance.

• Merriman downgraded shares of Oplink Communications (NASDAQ: OPLK) to Sell from Neutral based on concerns over the OCP acquisitions and inventory...

• 24/7 Real Media, Inc (NASDAQ: TFSM) was cut to Hold from Buy at Jefferies.

• Credit Suisse downgraded shares of RadioShack Corp (NYSE: RSH) to Neutral from Outperform.

• Bear Stearns cut Harman International Industries (NYSE: HAR) to Peer Perform from Outperform.

• Piper Jaffray downgraded shares of Cache, Inc (NASDAQ: CACH) to Market Perform from Outperform.

• Restoration Hardware, Inc (NASDAQ: RSTO) was cut at Caris to Average from Above Average.

Analyst downgrades 5-10-07: CACH, RSH, RTP and WFMI originally appeared on BloggingStocks on Thu, 10 May 2007 11:12:00 EST. Please see our terms for use of feeds.