Editor's Note: Green and red arrows refer to intraday stock price movement.

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Aeropostale ( ARO) downgraded at Keybanc from Hold to Underweight. $20 price target. Company appears to already be operating at peak margins.

Buckle ( BKE) upgraded at Keybanc from Hold to Buy. $36 price target. Company is dealing with a more consistent customer base and should continue to grow.

CoreSite Realty Corp ( COR) initiated at BofA/Merrill with a Neutral rating and $15.75 price target. Favorable view of datacenter fundamentals for landlords, Bank of America/Merrill Lynch said.

DreamWorks Animation ( DWA) upgraded at BofA/Merrill to Neutral from Underperform due to increasingly positive sentiment towards upcoming film, Megamind, Bank of America/Merrill Lynch said. Price target raised to $38 from $30. Endo Pharmaceuticals ( ENDP) upgraded at Duncan Williams from Buy to Strong Buy. $46 price target. New business model should help the company deliver solid growth.

Helmerich & Payne ( HP) downgraded at Goldman from Buy to Neutral.

Incyte ( INCY) downgraded at Leerink to Market Perform. Valuation call.

Marvell Technology ( MRVL) upgraded at Susquehanna from Neutral to Positive Susquehanna Financial said. Valuation call, even as near-term estimates were lowered. $25 price target.

Nuvasive ( NUVA) downgraded at BofA/Merrill to Neutral from Buy on lack of near term growth prospects. Price target trimmed to $29 from $40.

Patterson-UTI ( PTEN) downgraded at Goldman from Neutral to Sell. Company is leveraged to slower pressure pumping growth.

Research in Motion ( RIMM) rated new Hold at ISI Group. $60 price target. Valuation call, as the company is facing tougher competition.

Sanmina-SCI ( SANM) downgraded at Collins Stewart from Buy to Hold. $14 price target. Company lowered its guidance.

Skilled Healthcare ( SKH) upgraded at Citi to Buy from Hold. CA verdict is behind the company and the last two quarters have exceeded expectations. Price target increased to $7 from $5.

TC PipeLines ( TCLP) downgraded at BofA/Merrill to Underperform from Neutral. Valuation call and lack of near term growth catalyst, Bank of America/Merrill Lynch said. Price target raised to $46 from $42.

Tidewater ( TDW) upgraded at Goldman from Sell to Neutral.

Tetra Tech ( TTEK) rated new Neutral at Goldman Sachs. $23 price target. Organic growth will be challenging over the next year.

Verint Systems ( VRNT) downgraded at FBR from Outperform to Market Perform. Valuation call, based on a $29 price target.

Verizon ( VZ) rated new Market Perform at William Blair. Company is spending more to compete.

MEMC Electronics ( WFC) upgraded at Citi to Buy from Hold. Strong EPS story finally crystallizing. Price target raised to $18 from $15.
This article was written by a staff member of TheStreet.