NEW YORK (TheStreet) -- CHANGE IN RATINGS

Allison Transmission ( ALSN) was initiated with a Hold rating at Keybanc. End-market demand appears to be slowing, Keybanc said.

Autozone ( AZO) was upgraded at JP Morgan to Overweight. Previous investments should drive solid sales growth, and management is keeping a tight lid on costs, JP Morgan said.

Big Lots ( BIG) was downgraded at Deutsche Bank from Buy to Hold. $34 price target. Company is seeing slower sales growth, Deutsche said.

Chipotle Mexican Grill ( CMG) was downgraded at Credit Suisse from Outperform to Neutral. Valuation call, based on a $450 price target, Credit Suisse said.

Diebold ( DBD) was upgraded at Compass Point to Buy. $45 price target. Stock is attractive, following a 6% pullback, Compass Point said.

Dolan ( DM) was downgraded to Hold at TheStreet Ratings.

Brinker ( EAT) was upgraded at Sterne Agee from Underperform to Neutral. Turnaround is starting to show in the company's increased traffic, Sterne Agee said.

Fortinet ( FTNT) was upgraded at Nomura from Neutral to Buy. $32 price target. Company has secular tailwinds and recent reseller checks were strong, Nomura said.

Hexcel ( HXL) was upgraded at Wedbushfrom Neutral to Outperform. $32 price target. Margin improvement should be sustainable, Wedbush said.

Netflix ( NFLX) was upgraded at Pacific Crest to Outperform. $130 price target. Company is leveraged to stronger video and secular growth trends, Pacific Crest said.

O'Reilly Automotive ( ORLY) was upgraded at JP Morgan to Neutral. Company should see seasonally strong sales during the summer, JP Morgan said.

Roper ( ROP) was downgraded at Baird from Outperform to Neutral. $105 price target. Company trades at a 40% premium to its peers, Baird said.

Charles Schwab ( SCHW) was downgraded at Stifel Nicolaus from Buy to Hold. Valuation call, Stifel Nicolaus said.

SunTrust Banks ( STI) was upgraded to Buy at TheStreet Ratings.

Synaptics ( SYNA) was upgraded at Sterne Agee from Neutral to Buy. $38 price target. Company is leveraged to higher Kindle Fire growth, Sterne Agee said.

Tyson Foods ( TSN) was upgraded at BMO Capital from Market Perform to Outperform. $22 price target. Market has likely overreacted to weak beef and pork margins, BMO Capital said.

Ultimate Software ( ULTI) was upgraded at Piper Jaffray from Underweight to Neutral. $65 price target. Business should accelerate in the second half of the year, Piper Jaffray said.

Wolverine World Wide ( WWW) was downgraded at Sterne Agee to Underperform. $33 price target. Company has a cloudy sales outlook, Sterne Agee said.

Zions Bancorporation ( ZION) was downgraded at DA Davidson to Neutral. $22 price target. Sales outlook remains cloudy, DA Davidson.

Stock Comments / EPS Changes

Align Technology ( ALGN) numbers were raised at Jefferies. Shares are now seen reaching $34. Estimates were also raised on higher cash flow forecast, Jefferies said. Buy rating.

Bank of Hawaii ( BOH) numbers were raised at Jefferies. Shares are now seen reaching $50. Estimates were also raised on NIM pop. Hold rating.

Clearwire Corp. ( CLWR) was downgraded at Jefferies to Hold from Buy. $2 price target. Spectrum sale could be delayed, Jefferies said.

CME Group ( CME) estimates were lowered at Citigroup through 2013. Lighter volumes, but open interest remains steady, Citigroup said. Buy rating and $300 price target.

ConocoPhillips ( COP) estimates were lowered at UBS through 2013. First-quarter EPS misses on E&P pricing and underlift, UBS said. Sell rating and $64 price target.

Illumina ( ILMN) estimates, price target were raised at Credit Suisse. Shares are now seen reaching $48. Estimates were also increased, as the company is realizing higher sales growth, Credit Suisse. Neutral rating.

Illumina numbers were raised at Citigroup. Shares are now seen reaching $44. Estimates were also increased on higher revenues and lower GM, Citi said. Neutral rating.

Ingersoll-Rand target increased at UBS to $45. End-market outlook is overly conservative, UBS said. Buy rating.

Kellogg ( K) numbers were lowered at UBS. Shares are now seen reaching $54. Estimates were also lowered on greater-than-expected volume declines in the U.S. and U.K. Neutral rating.

Kellogg estimates, target reduced at Credit Suisse. Shares are now seen reaching $54. Estimates were also cut, given the company's new guidance, Credit Suisse said. Neutral rating.

Lam Research ( LCRX) numbers were reduced at Credit Suisse. Shares are now seen reaching $52. Estimates were also cut, given the company's new guidance, Credit Suisse said. Outperform rating.

MasterCard ( MA) numbers were raised at Jefferies. Shares are now seen reaching $521. Estimates were also raised on strong card volume metrics, Jefferies said. Buy rating.

Netflix ( NFLX) estimates, price target were lowered at Credit Suisse. Estimates were cut through 2014. Company is seeing fewer streaming subscribers, Credit Suisse said. Outperform rating and new $115 price target.

Netflix estimates were lowered at Citigroup through 2013. Weak domestic streaming adds, Citigroup said. Buy rating and $130 price target.

Owens & Minor ( OMI) numbers were cut at Credit Suisse. Estimates were reduced through 2014. Company is facing gross margin pressure, Credit Suisse said. Neutral rating and new $29 price target.

Roper Industries ( ROP) numbers were raised at Oppenheimer. Shares are now seen reaching $110. Estimates were also raised on continual commercialization of new applications, Oppenheimer said. Perform rating.

Texas Instruments ( TXN) numbers were increased at BMO Capital. Estimates were boosted through 2013. Higher sales are driving better margins, BMO said. Market Perform rating and new $32 price target.

Texas Instruments estimates were increased at UBS through 2012. Slightly better results and outlook, UBS said. Neutral rating.

Whole Foods ( WFM) target was boosted at BMO Capital. Shares are now seen reaching $95. Company is a market leader and deserves a premium valuation, BMO said. Outperform rating.

Weatherford ( WFT) estimates, price target were cut at Morgan Stanley. Shares are now seen reaching $23. Estimates were also reduced, given slower international growth. Overweight rating.

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