NEW YORK ( TheStreet) -- CHANGE IN RATINGS:ADT ( ADT) rated new outperform at William Blair. $57 price target. Company is cutting costs and buying back stock. American International ( AIG) downgraded at Wells from outperform to market perform. Company lacks near-term catalysts. Bemis ( BMS) upgraded at Keybanc from hold to buy. $40 price target. Company can outperform its peers over the coming quarters. Cullen/Frost ( CFR) 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) downgraded to hold at TheStreet Ratings. Hertz ( HTZ) downgraded at Morgan Stanley from overweight to underweight. $18 price target. Company is leveraged to lower used car prices. Huntsman ( HUN) downgraded at UBS to neutral from buy. $18 price target. Recent price appreciation increases above our valuation. Legg Mason ( LM) downgraded at KBW from outperform to market perform. $29 price target. Expect continued outflows from the equity business. MGM Resorts ( MGM) 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) upgraded at Stifel from hold to buy. $36 price target. Stock is attractive, following a recent pullback. Microsoft ( MSFT) downgraded at Morgan Stanley to equal-weight. Windows 8 has been disappointing and the PC market will remain weak. Olin ( OLN) rated new hold at Dahlman. Stock is pricing in improving profitability. Penn National ( PENN) downgraded at Lazard to neutral. Valuation call, given slower regional gaming trends. Silgan ( SLGN) 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) 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.