Analyst upgrades:

• RBC Capital upgraded Bank of America (NYSE: BAC) to Outperform from Sector Perform and said the company has attractive franchise value and earnings power, and is nearing the start of a credit driven earnings recovery. The firm raised its target to $22 from $19.
• Oppenheimer assumed coverage of Amazon.com (NASDAQ: AMZN) and upgraded shares to Outperform from Perform. The firm expects Amazon's revenue growth to re-accelerate over the next several quarters, making consensus estimates too conservative. Opco set a $130 price target on the stock.
• Barclays upgraded Ford (NYSE: F) to Equal Weight from Underweight and believes the company will report Q3 results above the Street. The firm raised its Q3 EPS estimate to 7 cents from 16 cents, vs. consensus of 21 cents, and its price target to $8 from $7.
• Charles River Labs (NYSE: CRL) was upgraded to Neutral from Sell at Goldman.
• Briggs & Stratton (NYSE: BGG) was upgraded to Outperform from Neutral at Baird.
• Sealed Air (NYSE: SEE) was upgraded to Equal Weight from Underweight at Barclays.

Analyst upgrades:

• FBR Capital upgraded CapitalSource (NYSE: CSE) to Outperform from Market Perform on valuation as it sees an attractive risk/reward at current levels. The firm raised its target on shares to $5 from $3.
• Kaufman Bros. upgraded The Knot (NASDAQ: KNOT) to Buy from Hold following the company's Q2 results to reflect stable national advertising and a better bottom-line outlook. The firm raised its target on shares to $11 from $8.50.
• Baird upgraded Obagi Medical (NASDAQ: OMPI) to Outperform from Neutral and raised its target to $10 from $7 following the strong Q2 report. The firm believes business bottomed in Q1 and the outlook is improving.
• IPC The Hospitalist Co. (NASDAQ: IPCM) was upgraded to Overweight from Equal Weight at Stephens.
• King Pharma (NYSE: KG) was upgraded at BofA/Merrill to Buy from Hold.
• Infinera (NASDAQ: INFN) was upgraded to Hold from Underperform at Jefferies.

Analyst upgrades:

• Janney Montgomery upgraded Kenexa (NASDAQ: KNXA) and SuccessFactors (NASDAQ: SFSF) to Buy from Neutral on expectations corporate IT spending will accelerate in the second half of 2009. The firm raised its target on Kenexa to $14 from $8 and on SuccessFactors to $12 from $9.
• Jefferies upgraded PSS World Medical (NASDAQ: PSSI) to Buy from Hold to reflect the company's cost-cutting measures and efforts to gain market share. The firm raised its target on shares to $25 from $17.50.
• FBR Capital upgraded Sunpower (NASDAQ: SPWRA) to Outperform from Market Perform following the company's Q2 results to reflect increased business prospects in the "rooftop" segment of the market. FBR raised its target on shares to $40 from $22.
• Cooper Industries (NYSE: CBE) was upgraded to Outperform from Perform at Oppenheimer.
• Temple-Inland (NYSE: TIN) was upgraded to Buy from Neutral at UBS.
• Juniper Networks (NASDAQ: JNPR) was upgraded to Buy from Neutral at Goldman.

Analyst upgrades:

• Deutsche Bank upgraded Portland General Electric (NYSE: POR) to Buy from Hold on valuation as it finds the risk/reward on shares attractive at current levels. The firm raised its target price to $22 from $20.
  
• FBR Capital upgraded Abercrombie & Fitch (NYSE: ANF) to Outperform from Market Perform after channel checks indicated recent sales are driving increased traffic and easing market share losses. The firm raised its target price on shares to $37 from $21.
• Barclays upgraded Yahoo (NASDAQ: YHOO) to Overweight from Equal Weight as it believes the company is well positioned for a rebound in advertising and that the valuation is compelling at current levels. The firm raised its target on shares to $20 from $15.
• Kohl's (NYSE: KSS) was raised to Overweight from Market Weight at Thomas Weisel.
  
• U.S. Steel (NYSE: X) and CB Richard Ellis (NYSE: CBG) were upgraded at Goldman to Neutral from Sell.
  
• Dolby Laboratories (NYSE: DLB) was upgraded at JP Morgan to Overweight from Neutral.

Analyst upgrades:

• Baird upgraded Carlisle (NYSE:CSL) to Outperform from Neutral and lowered their target to $25 from $33 following the company's Q4 results citing attractive valuation and solid execution.
  
• Citigroup upgraded Talbots (NYSE:TLB) to Hold from Sell on valuation as they believe the company's cash flow is improving and does not expect the company to face bankruptcy in next three years.
  
• Jefferies upgraded shares of Spectra Energy (NYSE:SE) to Hold from Underperform on valuation following the company's Q4 results and raised their target price to $15 from $11.75.
• Costco (NASDAQ:COST) was upgraded to Buy from Neutral at UBS.
  
• AU Optronics (NYSE:AUO) and LG Display (NYSE:LPL) were upgraded to Buy from Neutral at Banc of America/Merrill.
  
• Alpha Natural (NYSE:ANR) was raised to Buy from Hold at Natixis.

Analyst upgrades:

• Citigroup upgraded shares of Lennar (NYSE:LEN) to Buy from Hold on valuation as they believe the recent sell-off on concerns of fraud is overdone. The firm thinks the allegations made by Barry Minkow/Fraud Discovery Institute are unfounded and has an $11 target on shares.
  
• Merriman upgraded Nautilus Group (NYSE:NLS) to Neutral from Sell after meeting with management to reflect increased optimism on the company's turnaround.
  
• Baird upgraded Leap Wireless (NYSE:LEAP) to Outperform from Neutral based on valuation and strong subscriber trends.
  
• Transocean (NYSE:RIG) was added to Goldman's Conviction Buy List.
  
• Pearson PLC (NYSE:PSO) was raised to Neutral from Underweight at JP Morgan.
  
• Smith & Nephew (NYSE:SNN) was lifted to Outperform from Neutral at Credit Suisse.

Analyst downgrades:

• JP Morgan downgraded Bed Bath & Beyond (NASDAQ:BBBY) to Underweight from Neutral and lowered their target to $20 from $26 as they believe potential benefits from the Linens' N Things closing are being overstated and that the risk/reward is unfavorable at current levels.
  
• Keefe Bruyette downgraded Citizens Republic (NASDAQ:CRBC) to Market Perform from Outperform and cut their target to $3 from $7 to reflect the company's lower capital position.
  
• UBS downgraded Energizer (NYSE:ENR) to Sell from Neutral and lowered their target to $40 from $48 citing signs of a battery price war, Wal-Mart's (NYSE:WMT) reduction in space allocation, and the company's cuts in investment.
  
• Chevron (NYSE:CVX) was removed from Goldman's Conviction Buy List.
  
• MetroPCS (NYSE:PCS) was lowered to Sector Perform from Outperform at RBC Capital.
  
• Lincoln Electric (NASDAQ:LECO) was cut to Sell from Neutral at Piper Jaffray.

Analyst initiations:

• Global Hunter believes Pep Boys (NYSE:PBY) is well-positioned to benefit from increased demand for replacement parts and maintenance services as new car purchases are deferred. Shares were initiated with a Buy rating and $5.50 target.
  
• Jefferies started Sanofi-Aventis (NYSE:SNY) with an Underperform rating and sees downside risk to the stock from the potential introduction of Lovenox generics in the U.S.
  
• Merriman assumed Alter Nrg (NYSE:ANRGF) with a Neutral rating and recommends waiting on the sidelines pending increased visibility on the company's gasification projects.
  
• JP Morgan (NYSE:JPM) was re-initiated with a Buy rating at Goldman. Shares were also added to Goldman's Conviction Buy List.
  
• Hudson City Bancorp (NYSE:HCBK) was assumed with an Overweight rating and $15 target at Barclays.
  
• DG FastChannel (NASDAQ:DGIT) was initiated at BWS Financial with a Strong Buy rating and $30 target.

Analyst upgrades:

• JP Morgan upgraded shares of Amazon (NASDAQ:AMZN) to Overweight from Neutral as they believe the company's market share gains in the e-commerce sector will continue and that new product lines are adding diversification of revenue streams.
  
• Wachovia upgraded Leap Wireless (NASDAQ:LEAP) to Outperform from Market Perform citing new market launches that should drive subscriber growth and reduced ARPU deterioration.
  
• Deutsche Bank upgraded shares of Pride International (NYSE:PDE) to Buy from Hold as they believe investors will view the stock as a pure deepwater play beginning in Q2.
• PDL BioPharma (NASDAQ:PDLI) was upgraded to Neutral from Underweight at JP Morgan.
  
• Best Buy (NYSE:BBY) was raised to Buy from Neutral at Goldman.
  
• Altera (NYSE:ALTR) was upgraded at Wachovia to Outperform from Market Perform.

Analyst downgrades:

• Keefe Bruyette downgraded Southside Bancshares (NASDAQ:SBSI), Prosperity Bancshares (NASDAQ:PRSP), Cullen/Frost (NYSE:CFR) and BancFirst (NASDAQ:BANF) to Underperform from Market Perform on valuation and the weakening economic outlook in the Southwest.
  
• Oppenheimer cut Varian Medial (NYSE:VAR) to Perform from Outperform as they believe U.S. hospitals could reduce capital spending budgets by 15%-25% in 2009.
  
• Dress Barn (NASDAQ:DBRN) was lowered to Neutral from Buy at SunTrust based on valuation and lack of near-term catalysts.
• JetBlue (NASDAQ:JBLU) was downgraded at Jesup & Lamont to Hold from Buy.
  
• Credit Suisse cut Novellus (NASDAQ:NVLS) to Underperform from Neutral.
  
• Helen of Troy (NASDAQ:HELE) was downgraded to Underweight from Neutral at JP Morgan.

Analyst initiations:

• Merriman initiated Capstone Turbine (NASDAQ:CPST) with a Neutral rating and finds the stock fairly valued at current levels.
  
• Leerink sees a high likelihood that Momenta's (NASDAQ:MNTA) lead product candidates M-Enoxaparin and M-356 clear regulatory and legal hurdles. The firm has an Outperform rating and $16 fair value estimate on shares.
  
• NCI (NASDAQ:NCIT) was initiated with a Market Perform rating at Wachovia based on valuation.
• Teradyne (NYSE:TER) was assumed at Barclays with an Overweight rating and $6 target.

Analyst upgrades:

• UBS upgraded Safeway (NYSE:SWY) to Buy from Neutral based on valuation.
  
• AthroCare (NASDAQ:ARTC) was raised to Neutral from Negative at Susquehanna on valuation.
• BT Group (NYSE:BT) was raised to Neutral from Underperform at Credit Suisse.
  
• Leap Wireless (NASDAQ:LEAP) was upgraded at Goldman to Buy from Neutral.
  
• China Mobile (NYSE:CHL) was upgraded to Buy from Neutral at Merrill Lynch.

Analyst downgrades:

• Jefferies downgraded shares of Albany Molecular (NASDAQ:AMRI) to Underperform from Hold on concerns regarding the company's exposure to small biopharma as their checks suggest biopharmaceutical companies that rely on the capital markets to fund operations are cutting back significantly on R&D projects. The firm lowered their target to $8 from $10.
• Baird downgraded Sirona Dental (NASDAQ:SIRO) to Neutral from Outperform and lowered their target to $15 from $21 due to lack of catalysts and better options in dental.
  
• Stephens cut Hub Group (NASDAQ:HUBG) to Equal Weight from Overweight on the expectation that weaker volumes will lead to pricing pressure. The firm lowered their target to $24 from $36.
• Teco Energy (NYSE:TE) was downgraded to Hold from Buy at KeyBanc.
  
• RF Micro Devices (NASDAQ:RFMD) was lowered to Underperform from Buy at Merrill Lynch.
  
• Energy Conversion (NASDAQ:ENER) was cut to Underweight from Equal Weight at Barclays.

MOST NOTEWORTHY: The U.S. Retail Hardlines Sector, the BioFuels Sector, Interpublic Group and Omnicom Group were today's noteworthy initiations:

• Lehman initiated the Retail Hardlines Sector with a Neutral. The firm initiated coverage of Home Depot (NYSE: HD) and Lowe's (NYSE: LOW) with Overweight ratings and Best Buy (NYSE: BBY), Bed Bath & Beyond (NASDAQ: BBBY) and Williams Sonoma (NYSE: WSM) with Equal Weight ratings.
  
• Oppenheimer initiated Aventine Renewable (NYSE: AVR), Pacific Ethanol (NASDAQ: PEIX) and VeraSun Energy (NYSE: VSE) with Perform ratings. The firm is cautious on the industry due to higher feedstock costs.
  
• UBS initiated Interpublic Group (NYSE: IPG) and Omnicom Group (NYSE:OMC) with Buy ratings and an $11 target and $62 target, respectively. The firm views valuation as attractive.

OTHER INITIATIONS:

• Morgan Stanley assumed coverage of International Flavors (NYSE: IFF) with an Overweight rating.
  
• Wachovia initiated CGI Group (NYSE: GIB) with a Market Perform rating.
  
• Leap Wireless (LEAP) was initiated at RBC Capital with a Sector Perform rating and $55 target.

NASDAQ has released its short interest for the end of March, with a March 31, 2008 cut off date. Overall short interest fell by a rate of some 1.2% on NASDAQ for the two-week period to 9,657,092,223. Interestingly enough, there were a few standouts that saw some major gains in short selling.

STOCK (TICKER) MARCH 31 Change Days-Cover
Activision, Inc. (NASDAQ: ATVI) 11,220,128 54.65% 2.29
Leap Wireless Int'l (NASDAQ: LEAP) 14,852,034 38.12% 7.34
Level 3 Comm., Inc. (NASDAQ: LVLT) 243,930,977 9.10% 9.94
Sirius Satellite Radio (NASDAQ: SIRI) 137,781,424 41.50% 2.25

The percentage terms on Level 3 are not that great, but the raw number of shares is significant.

These were not the only gainers out there, but the bets against some of these rising short interest stocks were staggering. You can check NASDAQ short interest on any of these stocks or others at the NASDAQ Trader site dedicated to short interest.

Here are a few highlights of this past week's earnings coverage from BloggingStocks:

• Analogic Corp. (NASDAQ: ALOG) easily beat expectations, sending shares higher.
• Ciena Corp. (NASDAQ: CIEN) posted a loss and forecast sales for 2008 below estimates.
• Coca-Cola Enterprises Inc.'s (NYSE: CCE) earnings outlook led shares to a 52-week high.
• Cooper Cos. (NYSE: COO) swung to a loss on acquistion costs and litigation.
• Copart Inc. (NASDAQ: CPRT) beat expectations, sending shares to a new high.
• Costco Wholesale Corp. (NASDAQ: COST) posted a solid quarter, in line with expectations.
• Cost Plus Inc. (NASDAQ: CPWM) posted a smaller-than-expected net loss.
• Fleetwood Enterprises Inc. (NYSE: FLE) narrowed its loss through improved efficiency.
• General Electric Co. (NYSE: GE) reaffirmed its 4Q forecast, but the forward outlook disappointed investors.
• H&R Block Inc. (NYSE: HRB) warned of a deep loss due to the mortgage meltdown.
• Korn/Ferry International (NYSE: KFY) beat estimates and revised its guidance.
• Leap Wireless International Inc. (NASDAQ: LEAP) posted a loss, but share prices rose anyway.
• Lehman Brothers Holdings Inc. (NYSE: LEH) earnings fell for the third quarter in a row.
• Methode Electronics Inc. (NYSE: MEI) beat estimates, spurred by international sales.
• Novell Inc. (NASDAQ: NOVL) swung to a loss, surprising Wall Street.
• Synopsys Inc. (NASDAQ: SNPS) beat expectations and offered guidance.
• Texas Instruments Inc. (NYSE: TXN) raised its guidance for the fourth quarter.

As Joseph Lazzaro wrote earlier, the market has been selling-off today on inflation concerns, but not all stocks have been hit by today's sell off. In fact, there have been a handful of notable names that have managed to gain ground in today's session.

Shares of wireless carrier Leap Wireless International Inc. (NASDAQ: LEAP) have been surging today, even as the company reported yesterday evening a third-quarter loss of $43.3 million, or 64 cents a share. Analysts had only been expecting to see the wireless carrier show a loss of 22 cents a share, excluding items, according to Reuters Estimates. Included in the company's loss figures were 55 cents per share related to a quarterly change in tax accounting methods. Excluding that, Leap posted a loss of 9 cents a share, handily beating analyst estimates.

The company had a pretty good quarter overall. If you take a look at sales, you see a very respectable jump of 40% in the quarter, which is a great increase. The company posted a third-quarter revenue of $409.7 million, topping analysts' expectations for sales of $405.6 million.

Looking ahead, a Bear Stearns analyst said he anticipates strong gains for Leap Wireless due to the Christmas shopping season. The wireless carrier is also optimistic and expects further improvements in key areas like subscriber growth.

As the market continues to deal with mounting economic concerns, do not be surprised to see the company continue to move higher into next week.

Eliza Popescu is a financial writer for the online investment advisory service Investor's Observer.

Last week, MetroPCS Communications (NYSE: PCS) ended its $4 billion merger deal for Leap Wireless (NASDAQ: LEAP), which thought the deal wasn't good enough. Both companies provide wireless services to those that the major carriers -- like Verizon (NYSE: VZ) and AT&T (NYSE: T) -- tend to avoid (such as low-income customers).

Well, LEAP shareholders may be regretting things. On the company's latest news bomb, the stock has plunged 34% to $38.33. In fact, since late July, the stock is down a stunning 61%.

First of all, LEAP said it will have to restate financial results for 2004, 2005, 2006 and the first half of 2007. The items include service revenues, operating expenses and so on. The amount is about $20 million or so.

Not so big, huh? Maybe not. After all, the company could be in default on its $890 million of debt.

Oh, and the company garnered only 36,500 subscribers in Q3 (the goal was 40,000). And, it looks like Q4 growth will be meager too.

All in all, it's hard to find anything good here. Then again, Leap's space is full of buyout activity so I wouldn't be surprised if we eventually hear some more buyout buzz on the company, especially in light of the big cut in the valuation.

PCS shares are tumbling over 20% as well today.

Tom Taulli is the author of various books, including The Complete M&A Handbook and The Edgar Online Guide to Decoding Financial Statements. He also operates DealProfiles.com.

Priceline (NASDAQ: PCLN)'s higher profits are taking shares up 14%. And Rio Tinto (NYSE: RTP) is up 9% on buyout rumors.

Jones Soda (NASDAQ: JSDA) is trading off 19% due to poor earnings. And Leap Wireless (NASDAQ: LEAP) is off 15% on news that it will have to restate earnings.

Douglas A. McIntyre is an editor at 247wallst.com

MOST NOTEWORTHY: Monster Worldwide, Business Objects, Arcelor Mittal, Walgreen and Sealy Corp were today's noteworthy downgrades:

• Wachovia downgraded shares of Monster Worldwide (NASDAQ: MNST) to Market Perform from Outperform citing increased risk of an economic slowdown and execution issues in its N.A. Careers segment.
  
• Credit Suisse downgraded shares of Business Objects (NASDAQ: BOBJ) to Neutral from Outperform on valuation with shares above their $46 target.
  
• Banc of America downgraded Arcelor Mittal (NYSE: MT) to Neutral from Buy on valuation. The firm also downgraded Walgreen (WAG) to Sell from Buy, as they see further downside following the Q4 miss and believes the problems in Q4 are company-specific and not industry-wide.
  
• Citigroup downgraded shares of Sealy Corporation (NYSE: ZZ) to Sell from Hold following the Q3 results, as they believe Sealy faces increased competitive pressures at the high end of the market where the best margins are derived.

OTHER DOWNGRADES:

• Goldman Sachs removed Cisco Systems (NASDAQ: CSCO) and Nucor (NYSE: NUE) from its Conviction Buy List.
  
• Merrill Lynch added Intercontinental Hotels (NYSE: IHG) to its Least Preferred List.
  
• ABN Amro downgraded Rio Tinto (NYSE: RTP) to Hold from Buy.
  
• Soleil downgraded Leap Wireless (NASDAQ: LEAP) to Hold from Buy.