Even before the phrase "cloud computing" became popular, Citrix Systems (CTXS) was a top player in the industry. Over the years, the company has developed sophisticated technologies to leverage the Internet to share applications and allow groups to collaborate.

After being stuck in a trading range for some time, this year the stock of Citrix got juiced up. A big help has certainly been the surge from the leader in cloud-computing, Salesforce.com (CRM).

This week brings a small flurry of end-of-the-calendar-quarter earnings reports. And for the most part, the expectations of the analysts surveyed by Thomson Reuters aren't very high. Companies expected to report declining earnings in the most recently concluded quarter include America's Car-Mart Inc. (NASDAQ: CRMT), Bed Bath & Beyond Inc. (NASDAQ: BBBY), ConAgra Foods Inc. (NYSE: CAG), Jabil Circuit Inc. (NYSE: JBL), Jackson Hewitt Tax Service Inc. (NYSE: JTX), Monsanto Co. (NYSE: MON), and Sonic Corp. (NASDAQ: SONC).

• Jefferies upgraded HMS Holdings (NASDAQ: HMSY) to Buy from Hold on valuation as they believe the recent weakness provides an attractive entry point. The firm keeps a $36 price target on shares.
  
• Credit Suisse believes Universal Health (NYSE: UHS) is well positioned to gain market share, that earnings risk from the Las Vegas market is manageable, and that the balance sheet provides flexibility. The firm upgraded shares to Outperform from Neutral and raised their target to $48 from $46.
  
• UBS upgraded RF Micro (NASDAQ: RFMD) to Buy from Neutral citing checks that indicate strengthening momentum, impact from recent restructuring, and expected debt reduction. The analyst raised RFMD estimates above consensus and upped the price target to $3 from $1.10.
• Liberty Capital (NASDAQ: LCAPA) was upgraded to Buy from Hold at Deutsche Bank.
  
• Tesoro (NYSE: TSO) was raised to Hold from Sell at Soleil.
  
• SunTrust (NYSE: STI) was lifted at Keefe Bruyette to Outperform from Market Perform.

Investors are expecting Wall Street to continue its recent winning ways.

Stocks are poised to open higher as investors await March retail sales data and the weekly unemployment report. Markets in Europe and Asia were higher.

Retail sales, though weak, may not be as bad as investors had feared. According to the Wall Street Journal, "Wal-Mart Stores and a select group of its discounting peers have helped retail sales exceed modest expectations every month since December, and that streak likely will continue."

Pulte (NYSE: PHM) and Centex (NYSE: CTX) agreed to merge, creating America's largest homebuilding company. CTX shareholders will receive 0.975 PHM common shares for each CTX they own. The combined company will have a market cap of $4.1B with $3.4B in cash on its balance sheet. PHM April option implied volatility is at 93, May is at 97; below its 26-week average of 102, according to Track Data, suggesting decreasing price movement.

Centex April option implied volatility is at 108, May is at 118; near its 26-week average according to Track Data, suggesting non-directional price movement.

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

Given last week's news that new home sales have plunged and that new home prices continue to fall, what is Wall Street expecting from homebuilders Centex Corp. (NYSE: CTX), Pulte Homes Inc. (NYSE: PHM), and DR Horton Inc. (NYSE: DHI) when they report quarterly results this week?

Analysts surveyed by Thomson Reuters anticipate that Dallas-based Centex will report that it narrowed its net loss in its fiscal third quarter to $3.27 per share. In the same period of last year, the loss was $7.94 per share. Revenue in the third quarter is expected to total $895.3 million, down 53.0% from last year. For the full year, the loss is expected to reach $7.36 per share on revenue of $4.0 billion, which compares to a $21.69 per share loss on $8.3 billion in sales in 2008. Centex has posted bigger-than-expected losses in the past five quarters. So the consensus recommendation of analysts remains to hold CTX, though the long-range EPS growth forecast is 9.0%. The share price has fallen 20.0% just since the beginning of the year, and it is 70.7% lower than it was a year ago. Centex suspended its quarterly dividends back in October.

Recent reports reveal a surprising amount of criminal activity in the mortgage business. This is particularly true in states whose names end in the letter A, such as Florida and Nevada. Two particular forms of illegal behavior are the licensing of mortgage brokers with criminal records and homebuilders' use of bribes -- or 'incentives' -- to encourage people to buy over-priced houses without disclosing them to lenders as required by law. Think I'm kidding?

DSNews reports that last week, Florida's mortgage commissioner resigned after it was revealed that he granted mortgage brokerage licenses to people with criminal records. Specifically, DSNews wrote that Don Saxon, who had been Chairman of the Office of Financial Regulation (OFR) had "allowed more than 10,000 people with criminal histories – including bank robbers, racketeers, defrauders, embezzlers, identity thieves, and tax evaders, among others – to work in Florida's mortgage lending industry between 2000 and 2007. These convicted felons had expropriated more than $85 million from lenders and homeowners during that time."

Meanwhile, things were not much more legal in Nevada. That's where the Wall Street Journal reports that the Las Vegas, NV branch of home builder Centex (NYSE: CTX) paid off the credit cards and mortgages of potential borrowers to entice people to buy homes priced from $350,000 to $550,000. The FBI is investigating allegations that Centex did not always disclose these 'incentives' to lenders as required by law.

Are you waiting for the malaise in the housing market to finally lift? Of course you are, who isn't? I can't wait for the day when headline news suddenly turns unambiguously positive. And I can't wait for the day when the market as a whole decides to anticipate it. For now, though, we've still got sour data to contend with. According to this article, famous luxury home-builder Toll Brothers (NYSE: TOL), whose competitors include Centex (NYSE: CTX) and Lennar (NYSE: LEN), reported preliminary results for the third quarter on Wednesday that showed a big decrease in home-building revenues. They decreased 34%, coming in at roughly $796 million. Seems par for the course, all things considered.

But there are more declines. Backlog orders decreased over 50%, and net signed contracts took a dive of 35% (both of these metrics are in dollar terms). The company is also issuing write-downs that will fall somewhere between $100 million and $200 million. Depressing stats, but according to the company press release, CEO Robert I. Toll believes that there is pent-up demand lurking out there in the marketplace for homes and he used the fact that total cancellations were down during the quarter as a tool for positive spin. Plus, the home-building revenue number did, in fact, beat estimates, according to Reuters. Does this make me want to run out and buy the stock?

No. Even though the stock has been strong in the last month, and even though it was up nearly 1% at the end of the trading session on Wednesday (a pretty nice showing on an otherwise overall downer of a day), I don't think I'm ready to initiate a position in Toll Brothers. I'd have to see a significant pullback in this one before my interest becomes piqued (some better economic news wouldn't hurt, either).

Disclosure: I don't own any company mentioned; positions can change at any time.