Analyst upgrades:

• Citigroup upgraded Advanced Micro (NYSE: AMD) to Buy from Hold and raised its target to $5.50 from $4.25 citing valuation and expectations for the company's competitive position and gross margins to improve.
• Barclays upgraded American Express (NYSE: AXP) to Overweight from Equal Weight citing long-term earnings growth as the company benefits from declining charge-offs and credit costs. The firm has a $38 target on the stock.
• JPMorgan upgraded Arch Coal (NYSE: ACI) to Overweight from Neutral and raised its target to $22 from $19 citing the FTC approval for the acquisition of Jacobs Ranch mine and valuation.
• Bebe Stores (NASDAQ: BEBE) was upgraded to Overweight from Equal Weight at Stephens.
• Cheesecake Factory (NASDAQ: CAKE) was upgraded to Neutral from Underweight at Piper Jaffray.
• Ashland (NYSE: ASH) was upgraded to Buy from Hold at KeyBanc.

Can you believe Cheesecake Factory (NASDAQ: CAKE) traded below $5 last November?

I can. Its model of big meals and big cheesecake appeared vulnerable to the deep recession. Would consumers cut out the fat in their dining budget?

Apparently not, as the stock is up more than 3 times since hitting the bottom.

It's about that time again: Pepsi vs. Coke. No, not another taste test or another Battle of the Brands. It's time for the next quarterly results from these two soft drink titans.

Analysts surveyed by Thomson Reuters anticipate that PepsiCo Inc. (NYSE: PEP), global beverage and snack food giant, will report fourth-quarter earnings this week that are 9.1% higher that a year ago, or $0.88 per share. Revenue is expected to total $12.8 billion, which is 3.9% higher than last year. For the full year, the profit is expected to be $3.67 per share on revenue of $43.4 billion, up from $3.38 per share on $39.5 billion in 2007. PepsiCo's earnings met or beat estimates in four of the past five quarters, but missed by only two cents per share in the third quarter. The consensus recommendation of analysts remains to buy PEP. The share price fell to a 52-week low in January and is now 24.4% lower than it was a year ago. During the fourth quarter, PepsiCo declared a $0.42 per share quarterly dividend, agreed to acquire a Spitz International, and announced investments in China and Mexico.

How should you invest $10,000 in the coming year? The question was posed to some of Wall Street's most respected seers by syndicated columnist Andrew Leckey, whose Successful Investing column appears in over 150 newspapers.

Here, courtesy of The Bull & Bear Financial Report, 9 leading Wall Street experts -- Elaine Garzarelli, Richard Crippps, Sheldon Jacobs, Don Phillips, Richard Yamarone, High Johnson, Mark Johannessen, Curt Weil, and Paul Nolte -- offer their answers to the $10,000 question.

"Amid relentless volatility in 2007, every participant last December produced an increase over the past 12 months. Our pundits for a second consecutive year are spreading their bets because there are so many economic and political wild cards in the coming presidential election year.

MOST NOTEWORTHY:

• Friedman Billings resumed coverage of Cheesecake Factory (NASDAQ: CAKE) and Yum! Brands (NYSE: YUM) with Outperform ratings and a $30 target and a $46 target and Applebee's (NASDAQ: APPB) with a Market Perform rating and $25.50 target.
  
• American Superconductor (NASDAQ: AMSC) was initiated with a Buy rating and $33 target at Jefferies, as they believe repeat orders for wind turbine electrical systems could drive rapid revenue growth from 2008-2010.
  
• CIBC resumed coverage of First Solar (NASDAQ: FSLR) with a Sector Performer rating, as they believe shares are already pricing in the company's 2009 EPS potential.

• Morgan Stanley resumed coverage of Cablevision (NYSE: CVC) with an Underweight rating.
  
• US Steel (NYSE: X) was initiated with a Sector Performer rating and $117 target at CIBC.
  
• JP Morgan started SunPower (NASDAQ: SPWR) with an Overweight rating and Evergreen Solar (ESLR) with a Neutral rating.

How can a company emerge from bankruptcy and then, just about immediately, start looking for acquisition candidates? Isn't that like heading to The Cheesecake Factory, Incorporated (NASDAQ: CAKE) after the gastric bypass?

And yet Delta Air Lines, Inc. (NYSE: DAL) CEO Richard Anderson says the company is on the prowl. According (subscription required) to The Wall Street Journal, "Activist shareholders have been stirring the pot, too. Pardus Capital management, a big holder of UAL and Delta, is agitating for consolidation behind the scenes, a person familiar with the matter says. Meantime, an Icelandic investment fund has started pressing for change at AMR, which prompted the U.S.'s biggest carrier this week to say it is exploring options, including the splitting off of its frequent-flier business."

In most scenarios, it's a lot better to be the shareholder being bought out than a shareholder in the company doing the buying. This would appear to be no exception. With more labor-friendly forces likely to be taking control in Washington, and no end in sight to soaring gasoline prices, the airline industry is likely to face major challenges going forward.

Mergers and acquisition have a way of making problems worse, not better.

Cheesecake Factory Inc. (NASDAQ: CAKE) today reported second quarter earnings of $23.7 milion, or 33 cents per share compared with $23.4 million, or 30 cents, a year earlier. Revenue rose 16% to $373.2 million. Comprable sales rose 1.1 percent. The company beat Wall Street forecasts of 31-cent profit and revenue of $372 million. (Story to follow) Click here for the earnings release.

MOST NOTEWORTHY:

• Banc of America downgraded shares of both Nike and Foot Locker to Neutral from Buy, as the firm believes industry pressures in the U.S. could more than offset the potential turn in Europe and benefit from the 2008 Olympics.
• Cowen downgraded shares of ADTRAN, Bookham and Tellabs to Neutral from Outperform.
• Goldman Sachs also downgraded shares of Tellabs, to Sell from Neutral, as the firm believes the stock fully discounts the expected sales and margin improvement.

• Allergan Inc (NYSE: AGN) was downgraded to Equal Weight from Overweight at Morgan Stanley citing limited upside.
• Friedman Billings removed The Cheesecake Factory Incorporated (NASDAQ: CAKE) from its Top Picks and maintained its Outperform rating.
• Lehman downgraded shares of The First American Corporation (NYSE: FAF) to Equal-Weight from Overweight on increasing risk to the company's title margin and regulatory concerns.
• Matrix USA downgraded shares of Lowe's Companies Inc (NYSE: LOW) to Buy from Strong Buy on valuation.

MOST NOTEWORTHY:

• Lehman Brothers upgraded Armor Holdings (NYSE: AH) to Overweight from Equal Weight, following details of the President's $100B 2007 defense budget supplemental.

• Raymond James upgraded Cheesecake Factory (NASDAQ: CAKE) to Outperform from Market Perform following the company's better than expected forth quarter comps and revenues.

• Shares of Novel Inc (NASDAQ: NOVL) were upgraded to Outperform from Market Perform by JMP Securities; the firm said Novell's release of Open Enterprise Server 2 may help stop declines in the combined Netware/OES product lines.

• Jefferies upgraded shares of Endo Pharmaceuticals Hlds (NASDAQ: ENDP) to Buy from Hold, with a $35 target, to reflect improving Opana prescriptions and the resolution of the Penwest dispute, which the broker believes removes uncertainty and adds earnings visibility.