NetApp (NTAP), the fourth-largest player in the external disk storage market, creates innovative storage and data management solutions for small and medium-sized companies around the world. It competes mainly with other storage majors like EMC (EMC), IBM (IBM), HP (HPQ) and Dell (DELL).

The market tried to hit a new two-plus-year high again today. Anything cautious for the markets is being discounted and valuation concerns are out the door. It seems the bulls are in charge -- regardless of what comes down the pipe in the Middle East, Japan, the PIIGS and elsewhere. Even a goal of only aiming to cut foreign energy dependence by one-third did not rattle markets. The TARP even made money. Maybe we can just convince Bernanke to go ahead and raise rates to get the pain over with, once and for all.

Here were today's unofficial closing bell levels:

Dow Jones: 12,350.61 +71.60 (0.58%)

S&P500: 1,328.26 +8.82 (0.67%)

Nasdaq: 2,776,78 +19.90 (0.72%)

Top Analyst Calls

Analyst Upgrades

• Philip Morris (PM) to conviction buy from buy at Goldman.
• Peet's Coffee (PEET) to neutral from sell at Janney Capital.
• Cephalon (CEPH) to equal weight from underweight at Morgan Stanley.
• StoneMor Partners (STON) to outperform from neutral at RW Baird.
• Tibco (TIBX) to buy from underperform at BofA/Merrill.
• Apollo Group (APOL) to outperform from market perform at BMO Capital.

Analyst Upgrades

• Cree (CREE) and Rubicon Technology (RBCN) to buy from neutral at Merriman.
• Children's Place (PLCE) to outperform from market perform at BMO Capital.
• Lockheed Martin (LMT) to neutral from underperform at BofA/Merrill.
• Copano Energy (CPNO) to outperform from market perform at Morgan Keegan.
• Motorola Mobility (MMI) to neutral from reduce at Nomura.
• Parker-Hannifin (PH) to buy from hold at KeyBanc.
• Akamai (AKAM), ShoreTel (SHOR), AMB Property (AMB) and ProLogis (PLD) to buy from hold at Stifel Nicolaus.

Dell (DELL) competes with personal computer manufacturers like HP (HPQ), Apple (AAPL), Acer (ACEIF) and Toshiba (TOSBF), and increasingly against IBM (IBM) and others for IT services. We have a $22.39 Trefis price estimate for Dell's stock, and we estimate that Dell's hardware business which includes notebooks & netbooks, tablets, desktops, printers and displays makes up nearly 33% of Dell's stock. Our price estimate is around 40% ahead of the current market price.

Below we discuss four key trends for Dell's hardware business and their potential impact on Dell's stock price.

Intel (INTC) competes with Advanced Micro Devices (AMD) and Nvidia (NVDA) in the PC microprocessor and graphics businesses. We estimate that notebook microprocessors are the most important product segment for Intel, generating roughly 39% of its equity value.

Over the past couple years, the storage market has been the target of big acquisitions from companies like HP (HPQ) and Dell (DELL). With cloud computing -- as well as the emergence of data-hungry applications -- the growth in the market has been strong.

To capitalize on this, some of the top companies are looking at IPOs. For example, Fusion-io made its filing this week. The lead underwriters include Goldman Sachs (GS) and Morgan Stanley (MS).

When it comes to picking trends, JPMorgan Chase (JPM) has nailed the latest market to experience explosive growth. It is the fast-growing tablet market, as reported in Reuters.

Morgan's analyst, Mark Moskowitz, has upped his forecasts for tablet sales in 2011 and 2012. For 2011 he raised his numbers from $24.9 to $26.1 billion. For 2012 his numbers are increased from $34.1 billion to $35.2 billion. Unit sales were upped by over 1 million to 48.1 in 2011 and 79.6 in 2012.

Dell (DELL) experienced a good reaction to its latest earnings report on Tuesday, but I don't find myself interested in the stock. The company just doesn't call out to me as a solid buy. Back in September of last year, I noted that there were probably better investment options out there. I tend to feel the same way today.

The 52-week low for the shares is $11.34, while the 52-week high is $17.52. At the time of this writing, the stock was up over 5% to $14.64 during the post-bell period following the release of Dell's Q4 data.

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.

One of the big themes in technology for 2010 has been the scramble to buy up data storage companies. Perhaps the most interesting transaction was the bidding war for 3Par. HP (HPQ) paid a premium price to beat out Dell (DELL).

As margins on PCs and laptops continue to fall, the large computer makers are trying to find ways to boost margins. And data storage products are a key way to do this.