MOST NOTEWORTHY: Lloyds TSB Group, OmniVision and National Instruments were today's noteworthy downgrades:

• Credit Suisse downgraded shares of Lloyds TSB Group (NYSE: LYG) to Underperform from Neutral as they see greater mortgage risk and capital issues.
  
• Oppenheimer cut OmniVision (NASDAQ: OVTI) to Perform from Outperform to reflect challenging conditions in the low-end Chinese handset market.
  
• Thomas Weisel downgraded shares of National Instruments (NASDAQ: NATI) to Market Weight from Overweight as they expect EPS growth as operating margins approach cyclical peaks.

OTHER DOWNGRADES:

• Air France-KLM (OTC: AFLYY) was cut to Hold from Buy at Citigroup and to Neutral from Buy at Merrill.
  
• Exelon (NYSE: EXC) and Edenor (NYSE: EDN) were both downgraded at Citigroup to Hold from Buy.
  
• Goldman lowered Grupo Aeroportuario del Pacifico (NYSE: PAC) to Neutral from Buy.

Analyst downgrades: Lloyds TSB Group, OmniVision, National Instruments originally appeared on BloggingStocks on Wed, 28 May 2008 12:00:00 EST. Please see our terms for use of feeds.