Analyst upgrades:

• Baird upgraded Nike (NYSE: NKE) to Outperform from Neutral on expectations the company will benefit from the drop in the U.S. dollar and continued solid trends in athletic footwear. The firm raised its target on shares to $69 from $61.
  
• Deutsche Bank upgraded Temple-Inland (NYSE: TIN) to Buy from Hold as it believes the company is well positioned for cyclical turnaround in the Paper/Building Products space. The firm raised its target on shares to $19 from $11.
  
• Goldman upgraded Diageo (NYSE: DEO) to Buy from Neutral to reflect the current valuation and the company's exposure to emerging markets.
• Deutsche Bank (NYSE: DB) was upgraded to Hold from Sell at ING Group.
  
• Banco Santander (NYSE: STD) was lifted to Buy from Hold at Deutsche Bank.
  
• Jackson Hewitt (NYSE: JTX) was upgraded at Oppenheimer to Outperform from Perform.

Alcoa Inc. (NYSE: AA) started off the new earnings season with disappointing results that helped to stifle the recent rally. Was that enough of a sign of what's to come? No, probably not. But the earnings reports start to fly in earnest this week, which should provide a more detailed picture of the state of things.

Analysts surveyed by Thomson Reuters anticipate that some of the biggest names will prove to be holding their own. Google Inc. (NASDAQ: GOOG) is expected to post a profit of $4.91 per share, marginally higher than a year ago, and Johnson & Johnson's (NYSE: JNJ) expected $1.22 per share profit is slightly lower year over year. Even Mattel Inc.'s (NYSE: MAT) estimated loss of $0.13 per share is the same as in the year-ago period.

Analyst upgrades:

• Canaccord upgraded Rio Tinto (NYSE: RTP) to Buy from Hold citing valuation following the severe price decline following BHP Billiton's (NYSE: BHP) dropped bid.
• UBS upgraded Itron (NASDAQ: ITRI) to Buy from Neutral citing valuation and defensive business mix.
• Jefferies upgraded shares of HealthSouth (NYSE: HLS) to Buy from Hold on valuation and maintains a $13.50 target.
• Melco PBL Entertainment (NASDAQ: MPEL) was raised to buy from Neutral at Goldman.
• PG&E (NYSE: PCG) was upgraded at Merrill Lynch to Buy from Neutral.
• HSBC Holdings (NYSE: HBC) was upgraded to Buy from Neutral at UBS.

Analyst downgrades:

As the second quarter earnings crunch begins in earnest this week, the bear market has investors jittery and prognosticators spinning out dire warnings. In the wake of mixed results from Alcoa (NYSE: AA) and General Electric (NYSE: GE) kicking things off last week, here's a look at what Wall Street is expecting from many of the companies scheduled to report this coming week.

Analysts surveyed by Thomson Financial are expecting the following companies to report a rise in earnings when compared to the same period of the previous year.

• Nucor Corp. (NYSE: NUE): $1.80 EPS (36.6%) on sales of $6.4 billion (+53.0%)
• Google Inc. (NASDAQ: GOOG): $4.74 EPS (24.9%) on sales of $3.9 billion (+41.6%)
• Nokia Corp. (NYSE: NOK): 56 cents EPS (23.2%) on sales of $19.9 billion (+17.8%)
• CSX Corp. (NYSE: CSX): 90 cents EPS (21.1%) on sales of $2.9 billion (+12.8%)
• Altera Corp. (NASDAQ: ALTR): 27 cents EPS (18.5%) on sales of $346.7 million (+8.4%)
• IBM (NYSE: IBM): $1.82 EPS (+17.6%) on sales of $25.9 billion (+9.0%)
• eBay Inc. (NASDAQ: EBAY): 41 cents EPS (17.1%) on sales of $2.2 billion (+18.0%)
• W.W. Grainger Inc. (NYSE: GWW): $1.46 EPS (17.1%) on sales of $1.7 billion (+8.0%)
• Microsoft Corp. (NASDAQ: MSFT): 47 cents EPS (17.0%) on sales of $15.7 billion (+17.0%)
• Honeywell International Inc. (NYSE: HON): 94 cents EPS (17.0%) on sales of $9.2 billion (+7.9%)

MOST NOTEWORTHY: WebMD Health Corp (WBMD) was today's only noteworthy initiation:

• William Blair started the online health information portal, WebMD Health Corp (NASDAQ: WBMD) with an Outperform rating. The firm believes WebMD is positioned to benefit from various trends in the industry, including the increasing use of the Internet for information and patients' assuming more responsibility for their health care decisions.

OTHER INITIATIONS:

• Pacific Growth initiated United Therapeutics Corp (NASDAQ: UTHR) with a Neutral rating. The firm sees potential revenue risk from patient switching and reduced new patient starts in response to reports about higher incidence of serious Gram negative infections resulting in a Dear Doctor letter being sent to all IV-Remodulin prescribers in September 2006.

• Soleil Securities started Genuine Parts Co (NYSE: GPC) with a Buy rating and $65 target, noting that Genuine has the highest yield in the auto sector.

• Nollenberger doesn't see a catalyst for double-digit growth in Lam Research Corp (NASDAQ: LRCX) for the next 12-18 months and initiated the company with a Neutral rating and $40 target.

• ConAgra Foods Inc (NYSE: CAG) was initiated with a Hold rating at AG Edwards on valuation.

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