MOST NOTEWORTHY: Celgene (CELG), Sysco (SYY), Kinetic Concepts (KCI), BioMimtic Therapeutics (BMTI) and Lifecell Corp (LIFC) were today's noteworthy initiations:

• William Blair believes Celgene (NASDAQ: CELG) has the best growth profile in large-cap biotechnology and initiated shares with an Outperform rating.

• Citigroup views Sysco (NYSE: SYY) as the dominant leader in the foodservice distribution industry, initiating shares with a Buy rating, and feels the company will continue to take market share from its peers. The firm thinks the current valuation reflects the perception that Sysco may perform poorly in the near-term, which they disagree with.

• Wachovia started Kinetic Concepts (NYSE: KCI) with a Market Perform, citing competitive pressures and mature markets for its rating.

• Wachovia is positive on BioMimetic Therapeutics (NASDAQ: BMTI), initiating shares with an Outperform, based on strong rhPDGF technology, strategy, and management team.

• Wachovia is positive on Lifecell Corp's (NASDAQ: LIFC) Strattice, a porcine tissue matrix, which improves the company's international exposure and provides opportunities in new markets, initiating shares with an Outperform...

OTHER INITIATIONS:

• Credit Suisse initiated Community Health (NYSE: CYH) and Universal Health (NYSE: UHS) with Outperform ratings, LifePoint (NASDAQ: LPNT) with a Neutral rating, and Health Management (NYSE: HMA) and Tenet Healthcare (NYSE: THC) with Underperform ratings.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: The cable and satellite sector, Wal-Mart Stores (WMT) and Motorola (MOT) were today's noteworthy upgrades:

• 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.

OTHER UPGRADES:

• 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 summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Some of today's notable upgrades were Apple Inc (AAPL), Comcast Corp (CMCSA) and Crosstex Energy LP (XTEX):

• Apple Inc (NASDAQ: AAPL) was upgraded to Overweight from Neutral at Prudential and raised their target to $105 from $100 after their checks indicated a late March launch of Leopard, which is sooner than expected. Prudential believes Leopard will serve as a catalyst for Mac sales.

• Matrix USA upgraded shares of Comcast Corp (NASDAQ: CMCSA) to Hold from Sell as they believe the successful roll out of "triple play" product offering is driving sales growth.

• Crosstex Energy LP (NASDAQ: XTEX) was upgraded to Neutral from Underperform at Credit Suisse based on valuation.

OTHER UPGRADES:

• Citigroup upgraded shares of Seagate Technology Holdings (NYSE: STX) to Buy from Hold on valuation as they believe Friday's sell-off on concerns that Apple will use NAND Flash rather than disk drives in the next-generation video iPod was overdone. Citigroup doubts Apple will broadly move to NAND flash this year.

• Jefferies upgraded shares of Universal Health Services Inc (NYSE: UHS) to Buy from Hold with a $67 target as they believe industry fundamentals are strong for behavioral health and the valuation is attractive at current levels.

• Brean Murray upgraded shares of Scientific Games Corp (NASDAQ: SGMS) to Hold from Sell. The firm does not expect Scientific Games to hit its 2008 guidance of $2.00, but recognizes the long-term growth prospects should begin to flow to the bottom line.

• Credit Suisse upgraded the Chicago Mercantile Exchange Holdings Inc (NYSE: CME) to Outperform from Neutral on valuation.

• Baird upgraded Thomas Properties Group (NASDAQ: TPGI) to Outperform from Neutral.

• Bear Stearns upgraded Group Danone ADS (NYSE: DA) to Outperform from Peer Perform.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

On Stop Trading! on CNBC (2.40 p.m. Eastern): Cramer is angry, Very. He doesn't like that Deutsche Bank put a "sell" rating on Chevron Corporation (NYSE:CVX), which is his favorite Big Oil. Cramer is bullish on commodity and likes dividend. CVX trades at just nine times earnings and earns a solid dividend.

Clearly, Cramer likes Chevron and wouldn't sell it. Yes, he says it's one of the least efficient operators, but it also has a lot of "upside."

Some other comments he made on the show:

Triad Hospitals Inc. (NYSE:TRI): He talked about it on Jan 19, and Deutsche Bank liked it. Turned out to be a home run. It may not be done going up. Universal Health could go up.

Lehman says LOB of Nabor (NYSE:NBR) is not an LBO. Should not be up now, results are poor.

CEO of Halliburton Company (NYSE:HAL) is upset about stock. The stock will have its day.

Douglas A. McIntyre is a partner at 24/7 Wall St.