Analyst Upgrades

• Citigroup (C) to outperform from market perform at Bernstein.
• Cubist Pharma (CBST) to outperform from neutral at RW Baird.
• Pentair (PNR) to buy from hold at Citigroup.
• Heritage Financial (HFWA) to outperform from market perform at Keefe Bruyette.
• SL Green Realty (SLG) and Digital Realty (DLR) to market perform from underperform at FBR Capital.
• MGM Resorts (MGM) to neutral from Sell at Janney Capital.
• Ciena (CIEN) to buy from neutral and Olin (OLN) to buy from underperform at BofA/Merrill.
• Mellanox (MLNX) to overweight from equal weight at Barclays.
• ConocoPhillips (COP) and Canadian Natural (CNQ) to overweight from neutral at JPMorgan.
• IDEX (IEX) to outperform from perform at Oppenheimer.
• Taiwan Semiconductor (TSM) to buy from hold at Deutsche Bank.
• Ctrip.com (CTRP) to positive from neutral at Susquehanna.
• Linear Technology (LLTC) and Analog Devices (ADI) to hold from sell at Auriga.
• Quicksilver (KWK) to outperform from market perform at BMO Capital.

Analyst Upgrades

• Parker-Hannifin (PH) to buy from hold at Deutsche Bank.
• JDSU (JDSU) to buy from hold at Citigroup.
• Noble Corp. (NE) to overweight from neutral at JPMorgan.
• Cerner (CERN) to buy from hold at Auriga.
• Cintas (CTAS) to outperform from neutral at RW Baird.
• American States Water (AWR) to buy from hold at Brean Murray.
• National Semiconductor (NSM) and Texas Instruments (TXN) to positive from neutral at Susquehanna.
• Lululemon (LULU) to buy from hold at ThinkEquity.
• DuPont Fabros (DFT) to top pick from outperform at RBC Capital.

Texas Instruments (TXN) March put option implied volatility is at 26, April is at 28, near its 26-week average, according to Track Data, suggesting non-directional price movement into Tuesday's post-market Q1 mid-quarter update.

Vail Resorts (MTN) volatility elevated into results. MTN March put option implied volatility is at 45, April and July is at 39, above its 26-week average of 37, according to Track Data, suggesting larger price movement into expected Q2 results on March 10.

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

Analyst Upgrades

• SINA (SINA) to overweight from neutral at Piper Jaffray.
• Texas Instruments (TXN), ON Semiconductor (ONNN), Xilinx (XLNX) and Valassis (VCI) to overweight from neutral at JPMorgan.
• Salesforce.com (CRM) to buy from hold at Canaccord.
• Peet's Coffee (PEET) to buy from neutral at Janney Capital.
• Invesco Mortgage (IVR) to overweight from equal weight at Barclays.
• BTU International (BTUI) to buy from hold at Wunderlich.
• Coca-Cola Femsa (KOF) to overweight from neutral at HSBC.
• Chipotle (CMG) to market perform from underperform at Morgan Keegan.

Analyst Upgrades

• NYSE Euronex (NYX) to conviction buy from neutral at Goldman.
• General Dynamics (GD) to buy from hold at Citigroup.
• Deere (DE), Parker-Hannifin (PH) and ExlService (EXLS) to overweight from neutral at JPMorgan.
• Aflac (AFL) to outperform from market perform at FBR Capital.
• Wynn Resorts (WYNN) to buy from neutral at Janney Capital.
• Amdocs (DOX) to buy from neutral at UBS.
• Juniper (JNPR) to buy from hold at ThinkEquity.
• Rudolph Tech (RTEC) and KLA-Tencor (KLAC) to perform from underperform at Oppenheimer.
• Hershey (HSY) and Pinnacle Entertainment (PNK) to outperform from market perform at Wells Fargo.
• Spirit AeroSystems (SPR) to equal weight from underweight at Morgan Stanley.
• Micron (MU) to outperform from neutral at RW Baird.

For years Microsoft (MSFT) was the tech leader. Then, Google (GOOG) came along and Microsoft missed the entire search engine revolution. But Microsoft still dominated in software. Then came Apple (AAPL) with its iPod, iPhone, and iPad. Again, Microsoft missed the small device revolution.

The Wall Street Journal reports that now Microsoft is playing catch-up again. With its next operating system it will use low-powered chips similar to those Apple uses.

Analyst Upgrades

• Cisco (CSCO) to outperform from perform at Oppenheimer.
• Cognizant (CTSH) to buy from neutral at Goldman.
• Polypore (PPO) to outperform from neutral at RW Baird.
• Elan (ELN) to buy from neutral at UBS.
• Millicom (MICC) and NuStar GP Holdings (NSH) to overweight from equal weight at Morgan Stanley.
• Teekay LNG (TGP) to equal weight from underweight at Morgan Stanley.
• American Railcar (ARII) to outperform from market perform at Morgan Keegan.
• Texas Instruments (TXN) to buy from neutral at Sterne Agee.

"Texas Instruments (TXN) was roughed up pretty badly in 2008 and 2009. Profits fell sharply for this semiconductor giant, as did the stock price," says dividend reinvestment plan specialist Chuck Carlson.

The editor of The DRIP Investor explains, "The shares plummeted from nearly $40 per share in 2007 to $13 in early 2009. The stock has come roaring back from the 2009 lows, paced by impressive rebounds in sales and profits.

"For 2010, Texas Instruments should post record per-share profits in the vicinity of $2.47 per share. Based on that estimate, the stock seems cheap at less than 12 times earnings.

Texas Instruments (TXN) has done well over the last month or so. As can be seen from the chart, the stock engaged in a bit of a rally. Yesterday, the shares closed the regular session at $28.98, not far from the 52-week high of $29.19. And it should be noted that the 52-week high was hit during the intraday portion of the day.

So, we've got some strength to consider here. Now that the third-quarter numbers are out, should investors be taking a look at the stock as a potential buy?

Texas Instruments (TXN), which boosted its quarterly dividend last week, is scheduled to discuss its third-quarter 2010 financial results Monday, October 25, in a conference call with CFO Kevin March, beginning at 5:30 PM (ET) . You can catch a live webcast of the call at the company's website.

During the three months that ended in September, the Dallas-based semiconductor maker continued to innovate and sold a product line to Intel (INTC). Analysts surveyed by Thomson Reuters are looking for Texas Instruments to report that its earnings for that period rose 39.1% from a year ago to 69 cents per share. Revenue is expected to total $3.7 billion, which is a increase of 28.1% from the same period of last year.

The earnings crunch continues this week, and analysts surveyed by Thomson Reuters are anticipating lots of strong quarterly reports.

For example, year-over-year earnings growth from big oil Chevron (CVX), ConocoPhillips (COP), ExxonMobil (XOM) and Royal Dutch Shell (RDS.A) are expected to be in double digits. The same is true of many other energy and mining concerns reporting this week: Allegheny Technologies (ATI), Alliant Energy (LNT), Arch Coal (ACI), Cliffs Natural Resources (CLF), CMS Energy (CMS), CONSOL Energy (CNX), DPL (DPL), Hess Corp. (HES), Minerals Technologies (MTX), Pioneer Natural Resources (PXD), PPL Corp. (PPL), Southwestern Energy (SWN), Total (TOT), Whiting Petroleum (WLL), Williams Companies (WMB) and Wisconsin Energy (WEC).

The earnings season kicked off last week with better-than-expected results from Alcoa (AA) and Yum! Brands (YUM), while Marriott (MAR) and Pepsico (PEP) met consensus EPS estimates. This week, bellwether companies Intel (INTC), General Electric (GE), Google (GOOG) and JPMorgan Chase (JPM) are scheduled to report their third-quarter results, and analysts polled by Thomson Reuters are looking for earnings growth from all of them.

Santa Clara, Calif.-based Intel announced the acquisition of McAfee and joint ventures with General Electric and Nokia (NOK) during its third quarter. Analysts forecast earnings for that period to come to 50 cents per share, which is up 34.0% from the same period of last year. The number one semiconductor maker's revenue for the three months ended in September is expected to total $11.0 billion, or 17.1% more than a year earlier. Looking ahead to the full year, the forecast thus far is for earnings of $1.94 per share (+44.8%) and $43.3 billion in revenue (+23.4%). The per-share earnings topped analysts' expectations in the past four quarters, by as much as a dime per share.

Analyst upgrades:

• Citigroup upgraded Lubrizol (LZ) to Hold from Sell following the company's analyst day citing its continued pricing power in lubricants. Citi upped its target price for shares to $115 from $82.
• Janney Montgomery upgraded Viacom (VIA) to Buy from Neutral citing the company's ratings improvement, 2011 film slate, and video game pipeline. The firm has a $45 price target for shares.
• BMO Capital resumed coverage on Gammon Gold (GRS) with an Outperform from a Market Perform following the its equity issue. The firm has a $12.50 price target on the stock.
• Comerica (CMA) and First Horizon (FHN) were upgraded to Buy from Hold at Deutsche Bank.
• Prudential (PRU) was upgraded to Equal Weight from Underweight at Barclays.
• Itron (ITRI) was upgraded to Hold from Sell at Stifel Nicolaus.