MOST NOTEWORTHY:

• UBS downgraded Merck & Co Inc (NYSE: MRK) to Neutral from Buy citing slowing Gardasil trends and vaccine supply issues.
• Merriman cut On2 Technologies Inc (AMEX: ONT) to Neutral from Buy to reflect the reduced visibility into financials and management changes.
• Baird downgraded shares of Zions Bancorporation (NASDAQ: ZION) to Neutral from Outperform to reflect deteriorating credit quality and growing capital concerns. The firm lowered their target price to $32 from $43.

• AstraZeneca Plc (NYSE: AZN) was downgraded to Hold from Buy at Deutsche Bank.
• JP Morgan lowered Marshall & Ilsley Corporation (NYSE: MI) to Underweight from Neutral.
• Acme Packet Inc (NASDAQ: APKT) was downgraded to Neutral from Buy at Piper.

Analyst downgrades: MRK, AZN, MI, ONT and ZION originally appeared on BloggingStocks on Mon, 07 Jul 2008 11:44:00 EST. Please see our terms for use of feeds.