Owens Corning (OC) (PANL) (R) (TFM) Ratings Reiterated

Owens Corning (NYSE: OC), Universal Display Co. (NASDAQ: PANL), Ryder System, Inc. (NYSE: R) and The Fresh Market Inc (NYSE: TFM) had their ratings reiterated by analysts.

Citigroup (NYSE:C) reiterated a "Buy" rating on Owens Corning (OC).

Oppenheimer reiterated its "Market Perform" rating on Universal Display Co. (PANL).

Morgan Keegan reiterated an "Outperform" rating on Ryder System, Inc. (R).

Goldman Sachs (NYSE:GS) reiterated a "Neutral" rating on The Fresh Market Inc. (TFM).

Pandora (P) (ENDP) (HERO) (MAIL) (NVLS) (PANL) (PBI) (SIG) Ratings Reiterated

Pandora Media (NYSE: P), Endo Pharmaceuticals (NASDAQ: ENDP), Hercules Offshore, Inc. (NASDAQ: HERO), Incredimail Ltd. (NASDAQ: MAIL), Novellus Systems, Inc. (NASDAQ: NVLS), Universal Display Co. (NASDAQ: PANL), Pitney Bowes Inc. (NYSE: PBI) and Signet Jewelers Ltd. (NYSE: SIG) had their ratings reiterated by analysts.

Morgan Stanley (NYSE:MS) reiterated an "Equal Weight" rating on Pandora Media (P).

Piper Jaffray (NYSE:PJC) reiterated an “Overweight” rating on Endo Pharmaceuticals (ENDP).

Jefferies (NYSE:JEF) reiterated a "Buy" rating on Hercules Offshore, Inc. (HERO).

Goldman Sachs (NYSE:GS) reiterated a "Buy" rating on Incredimail Ltd. (MAIL).

Stifel Nicolaus reiterated a "Hold" rating on Novellus Systems, Inc. (NVLS).

Gabelli reiterated a "Buy" rating on Universal Display Co. (PANL).

BMC Equities Research reiterated a "Buy" rating on Pitney Bowes Inc. (PBI).

JPMorgan Chase & Co. (NYSE:JPM) reiterated an “Overweight” rating on Signet Jewelers Ltd. (SIG).

NuVasive (NUVA) (LNN) (NRG) (PANL) (PWRD) Upgraded

NuVasive (NASDAQ: NUVA), Lindsay Corp. (NYSE: LNN), NRG Energy, Inc. (NYSE: NRG), Universal Display Co. (NASDAQ: PANL) and Perfect World Co. Ltd (NASDAQ: PWRD) upgraded by analysts.

NuVasive (NUVA) was upgraded by Madison Williams from a “Reduce” rating to a “Neutral” rating.

Lindsay Corp. (LNN) was upgraded by Janney Montgomery Scott from a “Neutral” rating to a “Buy” rating.

NRG Energy, Inc. (NRG) was upgraded by UBS AG (NYSE:UBS) from a “Neutral” rating to a “Buy” rating. They have a price target of $26.00 on the company.

Universal Display Co. (PANL) was upgraded by Brigantine from a “Hold” rating to a “Buy” rating. They have a price target of $56.00 on the company.

Perfect World Co. Ltd (PWRD) was upgraded by ThinkEquity from a “Hold” rating to a “Buy” rating.

Microsoft (MSFT) (AMZN) (CSCO) (INTC) (AAPL) Leading NASDAQ Back Up

Microsoft (MSFT), Amazon.com (AMZN), Cisco Systems (CSCO), Intel (INTC) and Apple (AAPL) pushing NASDAQ up after the tech sector took a pounding yesterday.

Tech stock futures are also enjoying a resurgence, with the Nasdaq 100 rising from the close yesterday of $2060.29, to 2067.50 for the September contract. Even so, it has started to pull back as the trading day continues.

The biggest gainers in tech so far today are NXP Semiconductors (NXPI), which was trading at $16.05, soaring $2.02, or 14.40 percent, as of 11:10 AM EDT. Silicon Motion (SIMO) was trading at $9.64, climbing $1.28, or 15.31. LCD maker Universal Display (PANL) is leading the way for tech, jumping to $28.71, up $5.91, or 25.92 percent.

Other major techs like IBM (IMB) and Hewlett-Packard (HPQ) are also trading higher.

The NASDAQ is up about 3 percent so far on the day.

Ratings on (NVDA) (PANL) (PHM) (RAX) (RST) Reiterated

Ratings on NVIDIA (NASDAQ: NVDA), Universal Display Co. (NASDAQ: PANL), PulteGroup, Inc. (NYSE: PHM), Rackspace Hosting, Inc. (NYSE: RAX) and Rosetta Stone Inc. (NYSE: RST) reiterated by analysts.

Goldman Sachs (NYSE:GS) reiterated a “neutral” rating on NVIDIA (NVDA).

Oppenheimer reiterated a “market perform” rating on Universal Display Co. (PANL).

Goldman Sachs reiterated a “buy” rating on PulteGroup, Inc. (PHM). They have a price target of $10.00 on the company.

Morgan Stanley (NYSE:MS) reiterated an “equal weight” rating on Rackspace Hosting, Inc. (RAX).

Jefferies (NYSE:JEF) reiterated a “hold” rating on Rosetta Stone Inc. (RST).

NASDAQ's (BMTI) (PAL) (HEAT) (NSPH) (PANL) Biggest Losers

BioMimetic Therapeutics (NASDAQ:BMTI), North American Palladium, Ltd. (NASDAQ:PAL), SmartHeat Inc. (NASDAQ:HEAT), Nanosphere, Inc. (NASDAQ:NSPH) and Universal Display Corporation (NASDAQ:PANL) were all trading down over 15 percent on the NASDAQ today.

BioMimetic Therapeutics (BMTI) was trading at $8.80, dropping $4.59, or 34.28 percent, as of 2:05 PM EDT.

North American Palladium, Ltd. (NASDAQ:PAL) was trading at $4.24, falling $1.42, or 25.18 percent.

SmartHeat Inc. (HEAT) was trading at $2.3088, plunging $0.8412, or 21.84 percent.

Nanosphere, Inc. (NSPH) was trading at $2.29, declining $0.64, or 7.39 percent.

Universal Display Corporation (PANL) was trading at $46.35, down $10.28, or 18.15 percent.

Ratings on (PANL) (PHG) (RAH) (ROSE) Downgraded

Ratings on Universal Display Co. (NASDAQ: PANL), Koninklijke Philips Electronics ADR (NYSE: PHG), Ralcorp Holdings, Inc. (NYSE: RAH) and Rosetta Resources Inc. (NASDAQ: ROSE) downgraded by analysts.

Canaccord Genuity downgraded Universal Display Co. (PANL) from a “buy” rating to a “hold” rating.

JPMorgan Chase & Co. (NYSE:JPM) downgraded Koninklijke Philips Electronics (PHG) to an “overweight” rating.

William Blair downgraded Ralcorp Holdings, Inc. (RAH) from an “outperform” rating to a “market perform” rating.

Imperial Capital downgraded Rosetta Resources Inc. (ROSE) to an “outperform” rating. They cited valuation as the catalyst behind their call.

Big Movers (MMP) (TACT) (BKS) (PANL) (TUP) on May 6

Among the big, positive movers on Friday, May 6, were Magellan Midstream (MMP), Transact Technologie (TACT), Barnes & Noble (BKS), Universal Display (PANL) and Tupperware Corp. (TUP).

Magellan Midstream (MMP) jumped $1.66, to close at $59.03, a gain of 2.89 percent.

Transact Technologie (TACT) was up $1.66 on the day to close at $13.03, a gain of 14.60 percent.

Barnes & Noble (BKS) climbed $1.66 to close at $14.37, a gain of 13.06 percent.

Universal Display (PANL) rose $1.66 to close the session at $54.23, a gain of 3.16 percent.

Tupperware Corp. (TUP) was up $1.65 to end the day at $64.20, a gain of 2.64 percent.

Brigantine Advisors Positive on Corning (NYSE:GLW), Universal Display (Nasdaq:PANL)

Saying the chrystal cycle is nearing a bottom, Brigantine Advisors believes those benefiting the most will be Corning (NYSE:GLW) and Universal Display (Nasdaq:PANL).

Brigantine said, "Yesterday, DisplaySearch released 1H January 2011 panel pricing, Samsung provided 2011 capex guidance and Corning officially announced its first LCD TV Gorilla cover glass win.

"Implications: Panel pricing data neutral for LCD industry, but we believe that the crystal cycle is approaching a 'bottom.' We maintain our preference for LCD glass leader, Corning (NYSE: GLW)(BUY-rated, $22 PT). Samsung’s 2011 capex big winner is OLED, which we believe is positive for Universal Display (Nasdaq: PANL)(HOLD). The capex forecast of KRW5.4 trillion (US $4.83 billion) is large, but not terribly surprising considering SMD’s (Samsung Mobile Display) OLED leadership and open discussions of its 5.5G fab plans and its intention to build an 8G fab. Corning’s first TV cover glass win was announced, which believe is positive as Gorilla glass revenue momentum continues to expand."

Corning was trading at $19.35, up $0.37, or 1.95 percent, as of 12:37 PM EST. Universal Display was trading at $35.00, up $0.11, or 0.32 percent.