USG (USG) was downgraded at Barclays to equal weight from overweight. Disappointing first-quarter performance with weaker-than-expected wallboard prices and sales, Barclays said. Twelve-month price target is $31.

Wesco Aircraft (WAIR) was downgraded at J.P. Morgan to overweight from neutral. Valuation call, as the stock is up 45% year to date, J.P. Morgan said.

Western Alliance (WAL) was upgraded at FIG Partners. Valuation call, based on a 12-month price target of $26, FIG Partners said.

Waste Management (WM) was upgraded to buy at TheStreet Ratings.

Stock Comments / EPS Changes

American Airlines (AAL) numbers upped at Bank of America/Merrill Lynch. Estimates were boosted through 2015. Company is realizing higher merger synergies. Neutral rating and new 12-month price target of $42.

American Electric Power (AEP) 12-month price target, EPS estimataes were boosted at UBS. Driven by accelerating costs into 2014, UBS said. Twelve-month price target is $52. Neutral rating.

Berkshire Hathaway (BRK.B) 12-month price target was raised at Barclays. Driven by significant leverage to improving economy, Barclays said. Twelve-month price target is $149. Overweight rating.

Colgate - Palmolive (CL) 12-month price target was raised at UBS. Driven by growth in sales and price-taking abilities. $73 price target and buy rating.

DTE Energy (DTE) 12-month price target, EPS estimates were raised at UBS. Driven by expected agreements with three gas utility anchor tenants, UBS said. Twelve-month price target is $78. Neutral rating.

Lear (LEA) estimates, 12-month price target were boosted at Citigroup. Twelve-month price target is now $101. Estimates were also increased, following another strong quarter, Citigroup said. Buy rating.

Las Vegas (LVS) numbers were raised at Credit Suisse. Twelve-month price target is now $97. Estimates were also increased, as the company is buying back more stock, Credit Suisse said. Buy rating.

Weatherford (WFT) estimates, 12-month target were increased at Credit Suisse. Estimates were increased through 2015. Company has strong earnings momentum, Credit Suisse said. Outperform rating and new $30 price target.

Weyerhaeuser (WY) price target, EPS estimates were lifted at UBS. Driven by strong first quarter and progress on profit improvement, UBS said. Twelve-month price target is $26. Sell rating.

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This article was written by a staff member of TheStreet.

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