Bright and early on this fine Wednesday morning, JPMorgan downgraded Tyson Foods (TSN) to Neutral from Overweight. The brokerage gave four reasons for the downgrade: valuation, recent rises in corn and hog prices, a looming supply increase from competitor Sanderson Farms (SAFM), and uncertainty from Pilgrim's Pride.

All of these reasons are perfectly valid for the downgrade, but I want to focus on the valuation aspect of the downgrade. Technically, TSN faces overhead resistance in the $14 region, which is significant as the shares are currently ascending through the upper $12 region. The $14 level spurned the shares earlier this year, sending them into a steady decline back to support at the $11 region.

Canadian banks are scheduled to step into the earnings spotlight this week, with third-quarter reports coming from Bank of Montreal (NYSE: BMO), Bank of Nova Scotia (NYSE: BNS), Canadian Imperial Bank of Commerce (NYSE: CM), Royal Bank of Canada (NYSE: RY), and Toronto-Dominion Bank (NYSE: TD). While Canadian banks on the whole held up better than their U.S. counterparts during the financial crisis, these five are expected to report that their earnings are still declining in the most recent quarter.

Analysts surveyed by Thomson Reuters are looking for EPS for these banks to have fallen from 15% to 25% from a year ago. Their long-term EPS growth forecast is for between 10% and 12%, which is in the same range as U.S. rivals JPMorgan Chase & Co. (NYSE: JPM) and Wells Fargo & Co. (NYSE: WFC), but better than Bank of America Corp. (NYSE: BAC) and Citigroup Inc. (NYSE: C). Earnings multiples for these Canadian banks are 10x to 12x, but none of them have a First Call consensus recommendation is to buy. The Motley Fool, though, considers TD as a value stock and RY a stock poised to pop. All of them are trading much closer to their 52-week highs than lows, and shares of all are up more than 100% since March lows.

After the Memorial Day holiday in the United States, the earnings spotlight turns to Canadian banks: Bank of Montreal (NYSE: BMO), Canadian Imperial Bank of Commerce (NYSE: CM), Royal Bank of Canada (NYSE: RY), and Toronto-Dominion Bank (NYSE: TD) are all scheduled to report their second-quarter results.

While banks north of the border of generally have held up better than their U.S. counterparts, analysts surveyed by Thomson Reuters expect the four listed above to report that earnings declined between 20% and 30% since the same period of last year. All four have P/E ratios around 10, and they are paying dividends. Shares of all four have surged 50% to 83% in the past three months, but are still 26% to 38% lower than a year ago.

Last week, Bank of Montreal (NYSE: BMO), one of Canada's oldest and largest banks, reported growth in its fiscal fourth-quarter earnings. But it may be the only one that does, as at least two of the Canadian banks scheduled to report fourth-quarter numbers this week have already released preliminary results that warn of lower earnings due to debt write-downs and trading losses.

Analysts surveyed by Thomson Reuters expect Toronto-based Canadian Imperial Bank of Commerce (NYSE: CM) to post earnings 42.6% lower than a year ago, or $1.28 per share. CIBC beat estimates by a penny in the third quarter, but missed by a penny in the period before that. The bank faces a class-action lawsuit related to investments in collateralized debt obligations consisting of U.S. subprime mortgages. Shares have climbed 20.7% from a recent 52-week low of $39.52, but are down 37.8% in the past three months.

Toronto Dominion Bank (NYSE: TD), Bank of Nova Scotia (NYSE: BNS), and Royal Bank of Canada (NYSE: RY) are expected to report more modest earnings declines of $1.01 per share, $0.73 per share, and $0.83 per share, respectively. All three Toronto-based banks topped estimates in the third quarter. Toronto Dominion and RBC have recently announced plans to offer shares in order to raise capital. Toronto Dominion and Scotiabank have been trading near 52-week lows, and their share prices are down around 39% in the past three months. But only Toronto Dominion has a consensus buy recommendation from analysts.

Hormel Foods (NYSE: HRL) closed at $28.44 Tuesday. HRL is scheduled to report Q4 EPS on November 25. HRL overall option implied volatility of 41 is above its 26-week average of 30 according to Track Data, suggesting larger price movement.

Sanderson Farms (NYSE: SAFM) closed at $27.49 Tuesday. SAFM filed a $1 billion shelf registration for common and preferred shares on October 9 on the anticipation of using the proceeds to fund acquisitions. SAFM November option implied volatility of 91 is above its 26-week average of 58 according Track Data, suggesting larger price movement.

Pilgrim's Pride (NYSE: PPC), the largest chicken company in the U.S., closed at $1.40 Tuesday. PPC announced on October 27 lenders have agreed to provide continued liquidity under credit facilities. PPC December option implied volatility is at 239 according to Track Data, suggesting large price fluctuations.

Smithfield Foods (NYSE: SFD), a processor of packaged meats, closed at $9.49 Tuesday. SFD November option implied volatility of 166 is above its 26-week average of 88 according to Track Data, suggesting larger price movement.

Tyson (NYSE: TSN) closed $8.05 Tuesday. TSN is scheduled to report Q4 EPS on November 11. TSN November option implied volatility is at 133, December is at 124; above its 26-week average of 54 according to Track Data, suggesting larger price fluctuations.

Option Update is provided by Stock Specialist Paul Foster of theflyonthewall.com

Analyst upgrades:

• Keefe Bruyette upgraded shares of AllianceBernstein (NYSE: AB) to Outperform from Market Perform as they find AB's risk/reward attractive given its attractive long-term business model. Wachovia upgraded Watson Pharma (NYSE: WPI) and Teva Pharma (NASDAQ: TEVA) to Outperform from Market Perform citing valuations and positive drivers for generics that include patent expirations and market share expansion.
• UBS raised Lloyds TSB Group (NYSE: LYG) to Neutral from Sell on expected pricing power following the HBOS (OTC: HBOOY) acquisition.
• Otter Tail (NASDAQ: OTTR) was upgraded to Outperform from Neutral at Baird.
• GFI Group (NASDAQ: GFIG) was upgraded at Citigroup to Hold from Sell.
• Merrill upgraded Logitech (NASDAQ: LOGI) to Neutral from Underperform.

Analyst downgrades:

• JP Morgan downgraded shares of Lloyds TSB Group to Underweight from Neutral on capital concerns and believes the HBOS acquisition is not in the best interest of shareholders.
• Stephens downgraded Universal Truckload (NASDAQ: UACL) to Equal Weight from Overweight on valuation and concerns about a slowdown in the flatbed sector. The firm's target remains $28.

Here are some highlights from this past week's earnings coverage from BloggingStocks:

• Big Lots Inc. (NYSE: BIG) Q2 profits topped expectations, but it warned of weak sales in the second half.
• China Petroleum and Chemical Corp. (NYSE: SNP) first-half profits tanked due to government price controls.
• Dell Inc. (NASDAQ: DELL ) fell short of Q2 earnings estimates, surprising even Jim Cramer.
• Dillard's Inc. (NYSE: DDS) beat analysts' expectations despite widening its Q2 net loss.
• Gilat Satellite Networks Ltd. (NASDAQ: GILT) missed Q2 expectations and a merger fell through.
• J. Crew Group Inc. (NYSE: JCG) Q2 net income slipped on lower sales and gross margins.
• JP Morgan & Chase Co. (NYSE: JPM) earnings have been hurt by investments in Fannie Mae/Freddie Mac.
• LDK Solar Co. (NYSE: LDK) raised its 2009 revenue guidance on reaching peak silicon wafer capacity.
• Marvell Technology Group (NASDAQ: MRVL) beat Q2 expectations but gave a conservative Q3 outlook.
• Rio Tinto Group (NYSE: RTP) first-half profits more than doubled on its acquisition of Alcan.
• Sanderson Farms Inc. (NASDAQ: SAFM) swung to a Q3 loss due in part to rising commodities prices.
• Sears Holdings Corp. (NASDAQ: SHLD) Q2 earnings plunged more than expected on further sluggish sales.
• SkillSoft PLC (NASDAQ: SKIL) beat Q2 expectations and offered Q3 and full-year guidance.
• Smithfield Foods Inc. (NYSE: SFD) swung to a Q1 loss due in part to rising commodities prices.
• Talbots Inc. (NYSE: TLB) nearly doubled its Q2 loss due to lower sales and restructuring charges.
• Thornburg Mortgage Inc. (NYSE: TMA) posted a Q2 profit but warned of possible collapse on margin calls.
• Tiffany & Co. (NYSE: TIF) doubled its Q2 profit on strong international sales, and raised its guidance.
• TiVo Inc. (NASDAQ: TIVO) unexpectedly swung to a Q2 profit but forcast another loss in Q3.

Upcoming quarterly reports include Guess (NYSE: GES), Collective Brands (NYSE: PSS), H&R Block, (NYSE: HRB), Staples (NASDAQ: SPLS), Ciena (NASDAQ: CIEN), Toll Brothers (NYSE: TOL); and National Semiconductor (NASDAQ: NSM).

Visit AOL Money & Finance for more earnings coverage.

Rising commodities prices led both Smithfield Foods Inc. (NYSE: SFD), the nation's largest pork producer and processor, and poultry producer Sanderson Farms Inc. (NASDAQ: SAFM) to report quarterly losses on Tuesday.

Smithfield Foods said it lost $12.6 million, or 9 cents per share, in its fiscal first quarter due in part to a $20.1 million write-down in the value of commodity contracts. The Smithfield, Va.-based company had reported a profit of $54.6 million, or 41 cents per share, a year ago.

Revenues rose 20% to $3.14 billion in the quarter. Analysts surveyed by Thomson Reuters had forecast a loss of 4 cents per share on $2.87 billion in sales.

In addition to hurting from high costs for such ingredients as grain and fuel, Smithfield also faces an oversupply of meat on the market, which is keeping prices for pork lower. To help push prices up, meat producers such as Smithfield have announced intentions to cut supply.

Shares of Smithfield fell 88 cents, or 3.7%, to $22.71 in morning trading. That's up from a 52-week low of $16.61 in early July, but shares have fallen about 21% since the beginning of the year.

Results for the tech stocks in last week's preview were a mixed bag, some beats, some misses, some in line. By and large, expectations for tech companies reporting results this week remain high, though. Here's what analysts surveyed by Thomson Financial are anticipating in the way of earnings, as compared to the same period of the previous year.

• Solarfun Power Holdings Co. Ltd. (NASDAQ: SOLF): $1.48 EPS (+73.0%) on sales of $1.3 billion (+171.0%)
• Marvell Technology Group Ltd. (NASDAQ: MRVL): $0.21 EPS (+71.4%) on sales of $836.7 million (+27.4%)
• Solera Holdings Inc. (NYSE: SLH): $0.29 EPS (+51.7%) on sales of $137.0 million (+11.8%)
• Applied Signal Technology Inc. (NASDAQ: APSG): $0.14 EPS (+42.9%) on sales of $46.4 million (+17.4%)
• China Finance Online Co. Ltd. (NASDAQ: JRJC): $0.14 EPS (+42.6%) on sales of $13.3 million (+131.5%)
• OSI Systems Inc. (NASDAQ: OSIS): $0.38 EPS (+36.8%) on sales of $162.0 million (+6.0%)
• LaBarge Inc. (AMEX: LB): $0.27 EPS (+33.3%) on sales of $71.6 million (+10.4%)
• Esterline Technologies Corp. (NYSE: ESL): $0.69 EPS (+11.6%) on sales of $374.6 million (+14.8%)
• Dell Inc. (NASDAQ: DELL): $0.36 EPS (+11.1%) on sales of $15.9 billion (+7.8%)
• HEICO Corp. (NYSE: HEI): $0.46 EPS (+13.0%) on sales of $147.1 million (+10.5%)
• Daktronics Inc. (NASDAQ: DAKT): $0.17 EPS (flat) on sales of $141.5 million (+17.0%)
• Novell Inc. (NASDAQ: NOVL): $0.05 EPS (flat) on sales of $241.4 million (-0.7%)
• Omnivision Technologies Inc. (NASDAQ: OVTI): $0.29 EPS (-17.1%) on sales of $172.5 million (-0.4%)
• Sigma Designs Inc. (NASDAQ: SIGM): $0.39 EPS (-18.8%) on sales of $58.7 million (+37.9%)

MOST NOTEWORTHY: Citizens Republic Bancorp, Hess Corp and Sanderson Farms were today's noteworthy upgrades:

• Keefe Bruyette upgraded shares of Citizens Republic Bancorp (NASDAQ: CRBC) to Outperform from Market Perform on valuation following yesterday's sell-off, which they attribute in part to its removal from the Dow Jones Select Dividend Index. Shares were also raised to OUtperform from Perform at Oppenheimer following the sell-off.
  
• Goldman upgraded Hess (NYSE: HES) to Buy from Neutral citing the company's leverage to higher oil prices. The firm said oil is likely to hit $150-$200/bbl in the next 6-24 months.
  
• Stephens upgraded shares of Sanderson Farms (NASDAQ: SAFM) to Overweight from Equal Weight as they expect industry fundamentals to improve in FY09.

OTHER UPGRADES:

• Baird raised Stellent (NASDAQ: STEL) to OUtperform from Neutral.
  
• Friedman Billings upgraded Preferred Bank (NASDAQ: PFBC) to Market Perform from Underperform.
  
• Agco (NYSE: AG) was upgraded at Goldman to Buy from Neutral.
• Lehman upgraded SLM Corp (NYSE: SLM) to Overweight from Equal Weight.