Analyst Upgrades

• Akamai (AKAM) to overweight from neutral at Piper Jaffray.
• Las Vegas Sands (LVS) to buy from neutral at UBS.
• Aetna (AET) to Outperform from market perform at Leerink.
• Hot Topic (HOTT) to buy from neutral at Janney Capital.
• Colonial Properties (CLP) upgraded to Outperform from market perform at FBR Capital and to buy from hold at Citigroup.
• Altera (ALTR) to buy from hold at Citigroup.
• American Reprographics (ARC), CarMax (KMX) and American Campus (ACC) to outperform from neutral at RW Baird.
• Zebra Tech (ZBRA) to neutral from underweight at JPMorgan.
• IMAX (IMAX) to buy from hold at Canaccord.
• Basic Energy (BAS) to neutral from sell at Goldman.
• Mednax (MD) to buy from neutral at BofA/Merrill.
• UTi Worldwide (UTIW) to buy from hold at Stifel Nicolaus.

This post is part of Japan: A Special Report for Investors.

"Japan's tsunami has struck worldwide," says Richard Moroney, the editor of Dow Theory Forecasts, which has maintained a model portfolio of blue chip stocks for over 50 years.

Here, he reviews a number of the top buy recommendations in the newsletter's portfolios to determine the potential risk posed by the recent tragic developments in Japan.

Stocks cited as "Focus List Buys" are are those issues that the service expect to significantly outperform the market over the next 12 months.

Analyst Upgrades

• Intel (INTC), ON Semiconductor (ONNN), Lattice Semiconductor (LSCC), Fairchild Semiconductor (FSC), STMicroelectronics (STM) and Altera (ALTR) to outperform from neutral at RW Baird.
• Capital One (COF) to overweight from equal weight at Morgan Stanley.
• Dollar Tree (DLTR) to buy from neutral at Goldman.
• Foot Locker (FL) to buy from neutral at Sterne Agee.
• Progressive (PGR) to buy from neutral at BofA/Merrill.
• Flow International (FLOW) to buy from neutral at Roth Capital.
• Signature Bank (SBNY) to buy from hold at Jefferies.
• HiSoft Technology (HSFT) to buy from neutral at UBS.

"Buoyed by strong operating momentum, the technology sector earns high marks in our Quadrix® stock- rating system," says Richard Moroney.

The editor of Dow Theory Forecasts explains, "Our favorite picks in the tech sector -Altera (ALTR), Apple (AAPL), IBM (IBM) and Texas Instruments (TXN) - share some favorable qualities.

➤ December-quarter results: All four topped consensus estimates, producing double-digit growth in per- share profits. Revenue also exceeded expectations.

Analyst Upgrades

• Micron (MU) to buy from neutral at UBS.
• Baker Hughes (BHI) to outperform from market perform at BMO Capital.
• PDL BioPharma (PDLI) to outperform from sector perform at RBC Capital.
• Fluor (FLR) and Rush Enterprises (RUSHA) to buy from neutral at BofA/Merrill.
• Camden Property (CPT) to outperform from neutral at Macquarie.
• Pinnacle Financial (PNFP) to buy from hold at Wunderlich.
• Linear Technology (LLTC) to neutral from reduce at Nomura.
• Hologic (HOLX) and Illumina (ILMN) to buy from hold at Citigroup.
• F5 Networks (FFIV) to buy from neutral at Gleacher.

Analyst Upgrades

• Red Hat (RHT) and American Public (APEI) to outperform from sector perform at RBC Capital.
• KBR (KBR) and Foster Wheeler (FWLT) to buy from neutral at Goldman.
• Bio-Rad (BIO) to outperform from market perform at Leerink.
• Oceaneering (OII) to outperform from neutral at Credit Suisse.
• ASM International (ASMI) and Avid Technology (AVID) to overweight from neutral at JPMorgan.
• Dominion Resources (D) to equal weight from underweight at Morgan Stanley.
• Nationwide Health Properties (NHP) to buy from hold at Jefferies.
• Vivus (VVUS) to buy from underperform at BofA/Merrill.
• Intersil (ISIL) to buy from hold at Canaccord.

Analyst Upgrades

• Goldman upgraded Citigroup (C) to conviction buy from buy, Principal Financial (PFG) to buy from neutral, and Stancorp Financial (SFG) and Hartford Financial (HIG) to neutral from sell.
• JetBlue (JBLU) was upgraded to overweight from neutral at JPMorgan.
• Barclays upgraded Royal Caribbean (RCL) and Carnival (CCL) upgraded to overweight from equal weight.
• Hollysys Automation (HOLI) was upgraded to buy from hold at Roth Capital.
• RBC Capital upgraded Alliance Data Systems (ADS) to outperform from sector perform.
• RRI Energy (RRI) was upgraded to buy from hold at Citigroup.

Analyst Upgrades

• Wells Fargo upgraded PG&E (PCG) to outperform from market perform and raised its range for shares to $50 to $52 from $44 to $46, citing the proposed settlement in the company's 2011 General Rate Case.
• Jefferies upgraded Huntsman (HUN) to buy from hold and raised its price target for shares to $17 from $12, citing valuation and the likelihood for favorable earnings revisions.
• RBC Capital upgraded Jack in the Box (JACK) to outperform from sector perform with a $28 target, citing checks showing improved fast food sales in recent months and easy comps.
• Sonic (SONC) was upgraded to outperform from sector perform at RBC Capital and $12 price target.
• Synaptics (SYNA) was upgraded to overweight from neutral at JPMorgan and $40 price target.
• Excel Maritime (EXM) was upgraded to buy from hold at Cantor and raised its price target to $7 from $5.

The Federal Reserve's next Beige Book report is scheduled to be released this week. This report is a compilation of anecdotal information on current economic conditions from each of the 12 Federal Reserve Bank districts, and it is released eight times a year. The data comes from interviews with business contacts, economists, market experts, and other sources. The June report is expected to show strengthening signs of expansion, though results could be mixed across the 12 districts.

Economic data due out this week include:

In addition to Intel Corp.'s (NASDAQ: INTC) third quarter earnings release, chip makers Altera Corp. (NASDAQ: ALTR) and Linear Technology Corp. (NASDAQ: LLTC) are expected to post results Tuesday after the market closes as well. (Also see our Intel earnings preview.)

For the three months that ended in September, analysts surveyed by Thomson Reuters expect Altera to report that its net income fell 38.7% from a year ago to $0.19 per share. Revenue for the period is expected to be 20.6% lower to $283.3 million, which is in line with recently raised guidance. Altera has met or topped earnings estimates in the past five quarters, beating by as much as a nickel per share. The long-term EPS growth forecast is 14.4%, which is better than that of competitors Intel and Texas Instruments Corp. (NYSE: TXN).

Xilinx (NASDAQ: XLNX), a tech entity involved in programmable logic and a colleague of companies like Actel (NASDAQ: ACTL) and Altera (NASDAQ: ALTR), issued a business update on Tuesday. Believe it or not, it contained some good news. How about that for a change? I'm sure shareholders were pleased.

According to this news item, Xilinx believes that its revenue picture should be better than previously thought. Sales should drop by somewhere between 13% and 18% for the March quarter on a sequential basis. Management had originally believed that they'd have to report a sequential revenue drop between 15% and 25%. So, yes, there will still be a decline, but hey, if it's less than expected, you gotta take that. It's too bad, though, that the gross margin range wasn't raised. It should still fall between 61% and 63%. If management had raised that as well, then I bet the stock would have closed even higher on the news. It rose almost 4% on better-than-average volume yesterday.

Tomorrow, semiconductor chip makers Intel Corp. (NASDAQ: INTC) and Altera Corp. (NYSE: ALTR) are both expected to report profit growth in the third quarter.

Intel is expected by analysts surveyed by Thomson Financial to report earnings of 34 cents per share, 8.8% higher than the same period of last year, on revenue of $10.3 billion. The company has missed estimates in two of the past three quarters, but beat by 10.2% in the second quarter.

Based in Santa Clara, Calif., Intel is the world's largest chip maker, and generates half its revenues from Asia/Pacific. In the past year, the company's revenues were $38.3 billion and its net income totaled $6.9 billion. Its long-term EPS growth forecast is 11.9%, which is less than the S&P, as well as that of rival Advanced Micro Devices Inc. (NYSE: AMD). The consensus recommendation of analysts has recently shifted from hold to buy Intel.

The share price has fallen 17.7% in the past three months, and closed Monday at $16.99, up 11.9% in the day's big rally.

The earnings crunch begins in earnest this coming week, with companies from Johnson & Johnson (NYSE: JNJ) and PepsiCo Inc. (NYSE: PEP) to Southwest Airlines Co. (NYSE: LUV) and Harley-Davidson Inc. (NYSE: HOG) scheduled to report results for the quarter just ended. But with the ongoing turmoil in the markets, much attention is on the tech and financial sectors. This week will provide plenty to mull over on both counts.

Wall Street expectations for tech stocks are fairly optimistic. Analysts surveyed by Thomson Financial are looking for chip maker Altera Corp. (NASDAQ: ALTR) and software/service company iGate Corp. (NASDAQ: IGTE) to be the sector's biggest earnings gainers of the week. Altera is expected to report earnings of 30 cents per share (up 33.3% from a year ago) on revenue of $355.1 million. Altera had previously forecast flat sales for the quarter, and shares fell to a 52-week low last week. iGate is expected to report earnings of 14 cents per share (up 42.9%) on revenue of $55.6 million. India-based iGate recently spun off its Mastech consulting services. Shares are down 45.0% in the past three months, and also reached a new 52-week low last week.

San Jose-based Novellus Systems Inc. (NASDAQ: NVLS), on the other hand, is expected to report that net income tumbled 90.4% from a year ago to 4 cents per share, on revenue of $245.6 million. Novellus fell to a 52-week low early last week, and shares are down 44.5% year to date.

This post is part of a report entitled "Six-pack of technology favorites." You can read about the other top tech stock picks here.

"The semiconductor industry has been under pressure now for sometime, but one of the fastest growing businesses within semiconductors has been in programmable logic devices (PLDs)," notes wireless sector specialist Nikhil Hutheesing.

In The Forbes Wireless Stock Watch, he explains, "One of the top companies in this business is San Jose, California-based Altera (NASDAQ: ALTR). Here's his bullish review.

"These PLDs are chips that allow software developers to use inexpensive software tools to quickly develop, simulate, and test their designs. Then, a design can be quickly programmed into the chip and immediately tested in a live circuit.

"Unlike other chips, PLDs are based on re-writable memory technology. That means that if a designer wants to change the design on the chip, the device can be easily reprogrammed.

"Once the design is final, customers can go into immediate production by simply programming as many PLDs as they need with the final software design file. The result is that a final design can be completed much faster and less expensively than that of a custom, fixed logic device.

"While Altera also manufacturers other kinds of chips, it's the PLD business that could really boost the company's business. Eventually, Altera plans to replace the ASIC business entirely with PLDs.