NEW YORK (TheStreet) -- CHANGE IN RATINGS:

ADT

(ADT) - Get Report

rated new outperform at William Blair. $57 price target. Company is cutting costs and buying back stock.

American International

(AIG) - Get Report

downgraded at Wells from outperform to market perform. Company lacks near-term catalysts.

Bemis

(BMS) - Get Report

upgraded at Keybanc from hold to buy. $40 price target. Company can outperform its peers over the coming quarters.

Cullen/Frost

(CFR) - Get Report

downgraded at JP Morgan to underweight. Industry lacks near-term catalysts.

City National

(CYN)

downgraded at JP Morgan to neutral. Company is leveraged to slower growth in the first half of the year.

Con-Way

(CNW)

upgraded to buy at TheStreet Ratings.

EMC

(EMC)

downgraded at Morgan Stanley to equal-weight. Growth is slowing in the storage market.

Gencor Industries

(GENC) - Get Report

downgraded to hold at TheStreet Ratings.

Hertz

(HTZ) - Get Report

downgraded at Morgan Stanley from overweight to underweight. $18 price target. Company is leveraged to lower used car prices.

Huntsman

(HUN) - Get Report

downgraded at UBS to neutral from buy. $18 price target. Recent price appreciation increases above our valuation.

Legg Mason

(LM) - Get Report

downgraded at KBW from outperform to market perform. $29 price target. Expect continued outflows from the equity business.

MGM Resorts

(MGM) - Get Report

downgraded at Nomura from buy to neutral. $13.50 price target. Valuation call, as the stock is up 40% over the past two months.

Altria

(MO) - Get Report

upgraded at Stifel from hold to buy. $36 price target. Stock is attractive, following a recent pullback.

Microsoft

(MSFT) - Get Report

downgraded at Morgan Stanley to equal-weight. Windows 8 has been disappointing and the PC market will remain weak.

Olin

(OLN) - Get Report

rated new hold at Dahlman. Stock is pricing in improving profitability.

Penn National

(PENN) - Get Report

downgraded at Lazard to neutral. Valuation call, given slower regional gaming trends.

Silgan

(SLGN) - Get Report

downgraded at Keybanc from buy to hold. Core metal food can business could continue to struggle.

St. Jude

(STJ)

downgraded at BMO to market perform. $40 price target. Company lacks near-term catalysts.

Tronox

(TROX) - Get Report

downgraded at UBS to neutral from buy. $21 price target. Near term headwinds and recent stock appreciation spur downgrade.

Whitewave Foods

(WWAV)

rated new outperform at Credit Suisse. $19 price target. Company is a market leader and can generate solid growth over the next couple of years.

Wynn Resorts

(WYNN) - Get Report

upgraded at Lazard from neutral to buy. $145 price target. Estimates also boosted, given higher expected growth in Macau.

Zions Bancorporation

(ZION) - Get Report

downgraded at JP Morgan to neutral. Valuation call, as the sector lacks near-term catalysts.

STOCK COMMENTS / EPS CHANGES

Brady

(BRC) - Get Report

estimates, target upped at BMO.BRC estimates were boosted through 2014. Recent acquisition should add to earnings. Market Perform rating and new $34 price target.

Fiserv

(FISV) - Get Report

target raised at Oppenheimer to $89. Expect bank IT budgets to grow again in 2013. Outperform rating.

The Greenbrier Companies

(GBX) - Get Report

target raised at Jefferies to $17. Sequentially improved backlog in a weak environment. Hold rating.

Las Vegas Sands

(LVS) - Get Report

numbers raised at Lazard. Shares of LVS now seen reaching $59, according to Lazard Capital Markets. Estimates also increased, given higher expected growth in Macau. Buy rating.

Sirius XM

(SIRI) - Get Report

target increased at Lazard to $4 a share. Company will likely post higher subscriber growth. Buy rating.

Constellation Brands

(STZ) - Get Report

numbers boosted at Stifel. Shares of STZ now seen reaching $45. Estimates also upped, given higher wine and spirits sales. Buy rating.

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This article was written by a staff member of TheStreet.