MOST NOTEWORTHY:

• Baird cut ValueClick Inc (NASDAQ: VCLK) to Neutral from Outperform, citing the FTC inquiry.

• aQuantive (NASDAQ: AQNT) was downgraded to Sell from Buy after the company was acquired by Microsoft (MSFT) and because aQuantive no longer trades on fundamentals. Kaufman and Gabelli also cut aQuantive to Hold from Buy.

• Cigna (NYSE: CI) was downgraded at Prudential to Neutral from Overweight on valuation.

• Warner Music Group's (NYSE: WMG) downgrade to Sell from Neutral at Pali Research was based on the lower industry outlook, which Pali believes revenues are likely to fall at least 10% for the industry in 2007, along with the company's release schedule.

• Bear Stearns downgraded Clear Channel Communications (NYSE: CCU) to Peer Perform from Outperform on the acceptance of the higher bid.

• Medtronic Inc (NYSE: MDT) was downgraded to Underweight from Equal Weight at Morgan Stanley...

• Georgia Gulf Corp (NYSE: GGC) was downgraded to Sell from Hold at Matrix USA.

• Stifel cut Core Laboratories (NYSE: CLB) to Hold from Buy.

• UBS downgraded Intuit Inc (NASDAQ: INTU) to Neutral from Buy.

• Occidental Petroleum Corp (NYSE: OXY) was removed from Goldman's Conviction Buy list.

• Friedman Billings downgraded downgraded CapitalSource, Inc (NYSE: CSE) and Countrywide Financial Corp (NYSE: CFC) to Market Perform from Outperform.

Analyst downgrades 5-21-07: AQNT, CCU, CI, CFC and WMG originally appeared on BloggingStocks on Mon, 21 May 2007 11:04:00 EST. Please see our terms for use of feeds.