• Credit Suisse upgraded the cable and satellite sector to Market Weight based on cable's solid long-term strategic position, attractive valuations and expectations that new industry that new industry consolidation will continue. Additionally, the firm upgraded Mediacom Communications Corp (NASDAQ: MCCC) to Outperform from Market Perform and Charter Communications (NASDAQ: CHTR) to Outperform from Underperform.
• Wal-Mart Stores Inc. (NYSE: WMT) was upgraded to Overweight from Neutral at JP Morgan, as the firm believes the company has reached an inflection point following the company's plans to cut capital expenditure by around $2.5B and return $15B to shareholders through a buyback program. Wachovia upgraded shares of Wal-Mart to Outperform from Market Perform citing management's plans to slow U.S. store growth, reduce cap-ex and increase share buybacks. Morgan Stanley upgraded Wal-Mart to Overweight from Equal Weight and to Overweight from Neutral at HSBC.
  
• Motorola Inc. (NYSE: MOT) was upgraded to Sector Outperformer from Sector Performer at CIBC World Markets to reflect optimism on the company's product portfolio and margin progress. They believe the company's focus on margins and not share should lead to a higher long-term margin model.

• Bear Stearns upgraded Sirius Satellite Radio Inc. (NASDAQ: SIRI) to Outperform from Peer Perform, citing attractive risk/reward, shares of Universal Health Services Inc. (NYSE: UHS) to Peer Perform from Underperform based on expected near-term upside to estimates and Onyx Pharmaceuticals Inc. (NASDAQ: ONXX) to Outperform from Peer Perform.
• Merrill Lynch upgraded shares of Moody's Corp. (NYSE: MCO) to Neutral from Sell and shares of Mobile TeleSystems (NYSE: MBT) to Buy from Neutral.
• Thomas Weisel upgraded shares of NaviSite Inc. (NASDAQ: NAVI) to Overweight from Neutral citing valuation.

Analyst upgrades 6-4-07: Wal-Mart's quad upgrade, MOT, SIRI originally appeared on BloggingStocks on Mon, 04 Jun 2007 11:17:00 EST. Please see our terms for use of feeds.