We're well into the quarter now and the earnings reports continue to roll out.

This week, Dell (DELL) highlights a handful of results from tech companies. Analysts surveyed by Thomson Reuters are looking for fourth-quarter earnings of 37 cents per share from the one of the world's top PC purveyors. That's up from 28 cents per share during the same period a year ago. Dell also is expected to report its revenue grew 5.5% year over year to $15.7 billion, for the three months that ended in January.

Analyst Upgrades

• Interpublic Group (IPG) to buy from hold at Deutsche Bank.
• Radware (RDWR) to outperform from perform at Oppenheimer.
• Fluor (FLR) and Waddell & Reed (WDR) to buy from hold, as well as AllianceBernstein (AB) to hold from sell, at Citigroup.
• MetroCorp (MCBI) and American Capital (AGNC) to outperform from market perform at Keefe Bruyette.
• International Flavors (IFF) to overweight from equal weight at Barclays.
• BioCryst (BCRX) and Southern Company (SO) to buy from neutral at BofA/Merrill.
• Bunge (BG) to overweight from neutral at HSBC.

Analyst Upgrades

• Advance Auto Parts (AAP) was upgraded to Perform from Underperform at Oppenheimer.
• Macquarie upgraded Gen-Probe (GPRO) and Beckman Coulter (BEC) to neutral from underperform.
• Tyco (TYC) was upgraded to neutral from reduce at Nomura.
• BofA/Merrill upgraded Cousins Properties (CUZ) to buy from underperform.
• Morgan Stanley upgraded Energy Conversion (ENER) to equal weight from underweight.
• Thermo Fisher (TMO) was upgraded to buy from hold at Auriga.

Analyst Upgrades

• Barclays upgraded Western Digital (WDC) to overweight from equal weight.
• LDK Solar (LDK) was upgraded to buy from hold at Needham.
• Legg Mason (LM) was upgraded to outperform from neutral at Macquarie.
• Agilent (A) was upgraded to buy from hold at Stifel Nicolaus.
• Wells Fargo upgraded Dean Foods (DF) to outperform from market perform and Developers Diversified (DDR) to market perform from underperform.
• Deutsche Bank also upgraded Developers Diversified, to buy from hold.
• Northrop Grumman (NOC) was upgraded to sell from conviction sell at Goldman.
• MYR Group (MYRG) was upgraded to buy from hold at BB&T.

Dean Foods (DF - option chain) shares are up a significant amount for the second consecutive day after rumors resurfaced that Groupe Danone SA could be investigating an acquisition of the company. This rumor first came to light back in March, but since then DF has seen its share price cut by a third, which could make the company even more attractive now. If you think that the stock won't fall by too much in the coming months, then now could be a good time to look at a bullish hedged trade on DF.

DF opened this morning at $10.55 So far today the stock has hit a low of $10.50 and a high of $10.75. As of 12:15, DF is trading at $10.63 up 0.41 (4.0%). The chart for DF looks neutral and S&P gives DF a neutral 3 STARS (out of 5) hold ranking.

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

• Blockbuster Inc. (BBI) Q1 net loss was in line with estimates and same-store sales declined, shares also fell.
• CA Inc. (CA) shares sold off on high volume following the Q4 earnings miss and disappointing guidance.
• Cigna Corp. (CI) reported better-than-expected Q1 earnings and higher revenue, and reaffirmed its full-year outlook.
• Cisco Systems Inc. (CSCO) beat Q3 earnings and revenue expectations in the "strongest quarter in our history."
• Dean Foods Co. (DF) lower Q1earnings beat analysts' estimates, but shares fell on heavy volume afterward.
• Denny's Corp. (DENN) bested consensus estimates and year-ago EPS by a penny, but said same-store sales fell.

Dean Foods (DF) is down today. During afternoon trading, my screen showed the stock off 56 cents, or over 5%, to $9.91. Volume is way above normal, indicating conviction on the part of the traders. Is the sell-off a buying opportunity?

I'm not so certain about that. I'll tell you, I do not like the one-year chart. Take a look at it and see what you think. As an investor, that graphic must give you the chills. Sure, you might be wondering if Dean Foods is getting cheap; thing is, though, you have to be careful you're not attempting to catch the proverbial falling knife. That wouldn't be so good.

Analyst Upgrades

• Piper Jaffray upgraded Clear Channel Outdoors (CCO) to neutral from underweight following the company's Q1 results. The firm also doubled its price target for shares to $12 from $6.
• Deutsche Bank upgraded MetroPCS (PCS) to buy from hold to reflect higher EBITDA assumptions and valuation while doubling its target price for shares to $14 from $7.
• Thomas Weisel upgraded America's Car-Mart (CRMT) to overweight from market weight ahead of the company's Q4 results and upped its target for shares to $31 from $30. The firm has increased confidence in its FY11 estimates for the company and sees potential upside in Q4.
• Esterline Technologies (ESL) was upgraded to overweight from equal weight at Stephens.
• Cheesecake Factory (CAKE) was upgraded to outperform from neutral at Baird.
• J.B. Hunt (JBHT) was upgraded to buy from neutral at Longbow.

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

• Activision Blizzard Inc. (ATVI) reported better-than-expected Q4 earnings and declared an annual dividend.
• Allstate Corp. (ALL) swung to better-than-expected Q4 earnings and also swung to a full-year profit.
• Buffalo Wild Wings Inc. (BWLD) shares tumbled after it posted disappointing earnings tied to costs.
• The Cheesecake Factory Inc. (CAKE) posted better-than-expected Q4 earnings but sales were flat.
• Chipotle Mexican Grill Inc. (CMG) earnings numbers for Q4 resulted in upgrades from two analysts.
• CVS Caremark Corp. (CVS) higher Q4 earnings matched the expectations of analysts, and shares rose.

Analyst Upgrades

• Oppenheimer upgraded Abercrombie & Fitch (ANF) to outperform from perform as it finds the risk/reward on shares attractive and believes the company's Q4 results and easing comparisons could serve as positive catalysts. The firm set a $46 price target on shares.
• Bernstein upgraded 3M Company (MMM) to outperform from market perform based on expectations the company will continue to beat and raise guidance and that the organic growth rate will continue to improve. The firm raised its target to $99 from $90.
• Roth Capital expects Nvidia (NVDA) to benefit from its new GPU platform Fermi in Q1, resulting in a PC business recovery. Additionally, the firm, which upgraded shares to buy from hold and has a $21 target, expects Nvidia to offset Intel (INTC) declines by selling low-end GPUs compatible with Intel's Pinetrail and Westmere platforms.
• Syngenta (SYT) was upgraded to buy from hold at Collins Stewart.
• Cameron (CAM) was raised to overweight from neutral at HSBC.
• Sigma-Aldrich (SIAL) was lifted to outperform from neutral at Baird.

Dean Foods (DF) shares fell more than 15%, or $2.70, in Wednesday morning trading to a new 52-week low.

For the quarter ended Dec. 31, Dean Foods reported net income of $50 million, or 27 cents per share, down from $66 million, or 42 cents a share, in the year-ago period. Price pressure at retailers and rising dairy costs dragged down results. Excluding charges, Dean Foods said it earned 31 cents a share.

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

• CBS Corp. (NYSE: CBS) reported that Q3 revenue was flat while earnings and cash flow declined.
• Clorox Co. (NYSE: CLX) reported better-than-expected Q1 earnings, helped by healthy gross margins.
• Comcast Corp. (NASDAQ: CMCSA) posted better-than-expected Q3 earnings with modest revenue growth.
• Dean Foods Co. (NYSE: DF) Q3 revenue missed estimates but earnings came in better than expected.
• Expeditors International of Washington Inc. (NASDAQ: EXPD) traded lower after its Q3 earnings miss.
• Garmin Ltd. (NASDAQ: GRMN) beat earnings estimates in the week after the Google Navigation launch.

Dean Foods (NYSE: DF - option chain) stock traded lower Monday after the company reported Q3 earnings, posting an adjusted profit of 34 cents per share on revenue of $2.77 billion. While this beat analysts' expectations of 33 cents per share, the revenue targets were $2.94 billion. DF also forecast fourth-quarter EPS of 36 cents, missing analysts' projections of 39 cents. If you think this stock won't be rising too far in the coming months, then it could be a good time to look at a bearish hedged play on DF.

Monday, DF opened at $17.82. In early trading, the stock hit a high of $17.96 and a low of $16.43. As of 11:20, DF was trading at $16.59, down $1.64 (-9.0%). The chart for DF looks neutral and S&P gives DF a neutral 3 STARS (out of 5) hold ranking.

Analyst upgrades:

• RBC Capital upgraded Bank of America (NYSE: BAC) to Outperform from Sector Perform and said the company has attractive franchise value and earnings power, and is nearing the start of a credit driven earnings recovery. The firm raised its target to $22 from $19.
• Oppenheimer assumed coverage of Amazon.com (NASDAQ: AMZN) and upgraded shares to Outperform from Perform. The firm expects Amazon's revenue growth to re-accelerate over the next several quarters, making consensus estimates too conservative. Opco set a $130 price target on the stock.
• Barclays upgraded Ford (NYSE: F) to Equal Weight from Underweight and believes the company will report Q3 results above the Street. The firm raised its Q3 EPS estimate to 7 cents from 16 cents, vs. consensus of 21 cents, and its price target to $8 from $7.
• Charles River Labs (NYSE: CRL) was upgraded to Neutral from Sell at Goldman.
• Briggs & Stratton (NYSE: BGG) was upgraded to Outperform from Neutral at Baird.
• Sealed Air (NYSE: SEE) was upgraded to Equal Weight from Underweight at Barclays.

Analyst upgrades:

• Piper Jaffray upgraded Viacom (NYSE:VIA) to Overweight from Neutral to reflect the improving ad market and better ratings at key cable networks. The firm raised its target on shares to $35 from $29.
  
• Baird upgraded Research in Motion (NASDAQ:RIMM) to Outperform from Neutral on valuation as it views the recent weakness as a buying opportunity. The firm keeps an $84 price target on shares.
  
• Jefferies upgraded Usana (NASDAQ:USNA) to Buy from Hold as it believes direct selling companies have been gaining momentum. The firm raised its target on shares to $44 from $37.
• AK Steel (NYSE:AKS) was upgraded to Buy from Hold at Deutsche Bank.
  
• First Merit (NASDAQ:FMER) was upgraded to Perform from Underperform at Oppenheimer.
  
• Spectra Energy (NYSE:SE) was upgraded to Conviction Buy from Neutral at Goldman.