Analyst upgrades:

• Citigroup upgraded FPL Group (FPL) to buy from hold on valuation and recommends buying the stock into the staff recommendation. The firm raised its target on shares to $58 from $55.
• Deutsche Bank upgraded Smithfield Foods (SFD) to buy from hold as it believes the company's fundamentals and export demand outlook are improving. The firm raised its target on shares to $20 from $12.
• Credit Suisse upgraded T. Rowe Price (TROW) to outperform from neutral and raised its target to $60 from $55 based on strong net inflows and potential operating leverage.
• Microchip (MCHP) was upgraded to neutral from sell at Goldman.
• Toll Brothers (TOL) was upgraded to outperform from market perform at Wells Fargo.
• Ascent Solar (ASTI) was upgraded to hold from underperform at Jefferies.

The IPO market has been pretty slow for the past two years due to the effects of a subprime mortgage crisis that turned into a credit crisis that turned into a worldwide financial crisis and recession. Nonetheless, two companies made their debuts Thursday -- one on the NYSE (NYSE: NYX), the other on the NASDAQ -- and they nailed it. Hyatt Hotels (NYSE: H) gave its investors a 12% gain on its first Big Board trading day, and Ancestry.com (NASDAQ: ACOM) switched those digits, jumping 21% in its first day of trading.

Hyatt Hotels overcame two major concerns. The worldwide travel market slump has been tough on hotel companies, and Hyatt has been subject to the same forces as everyone else. Also, investors may have been worried about infighting among the founder's heirs (the Pritzker family), but the double-digit price increase suggests that investors don't foresee Bancroft-style squabbles screwing investors -- or, if you don't like Dow Jones, now a part of News Corp (NASDAQ: NWS), Playboy (NYSE: PLA) makes the same point.

The Pritzker family is one of the richest in the U.S. with many business interests. One of the most notable is Hyatt Hotels, which Jay Pritzker founded in 1957 when he purchased a hotel next to the Los Angeles International Airport.

Well, this week the company filed the necessary papers to go public. The company had gone private during the early 1980s.

Suppose you have a wildly successful business in an ultra hot market. Time to sell?It's probably something to consider. Well, that's certainly the state of affairs in the private equity world.

According to the Wall Street Journal, the founder of Apollo Management LP, Leon Black, is mulling these kinds of cash-out issues [subscription required]. His private equity firm is one of the largest and has done deals such as for Harrah's Entertainment Inc. (NYSE: HET), Realogy Corp. (NYSE: H), and Nalco Holding Co. (NYSE: NLC).

Based on the market multiples -- such as for Fortress Investment Group LLC (NYSE: FIG) -- it looks like he can take home about $1.5 billion selling a minority stake of 10% but still keeping control of his destiny. To me, this is having your cake and eating it too.

What's more, by selling the stake to private investors, there's no need to go through the hassles of the IPO process. In other words, Black has more time to do deals. Although, if the Apollo stock is registered – which is likely to happen – it will become publicly traded within the year.

It's an interesting structure and is typical for small companies. As for Black, he does think out of the box and the back-door IPO does make a lot of sense.

Tom Taulli is the author of various books, including the Complete M&A Handbook and the EDGAR-Online Guide to Decoding Financial Statements.