NEW YORK (TheStreet) -- STOCK COMMENTS / EPS CHANGES

Facebook ( FB) estimates, target were boosted at Needham. Shares are now seen reaching $33. Estimates were also increased, given higher expected mobile revenue growth, Needham said. Buy rating.

Westlake ( WLK) estimates were increased at Wells Fargo through 2013. Company is leveraged to lower ethane costs, Wells said. Market Perform rating.

Yahoo! ( YHOO) price target was raised at Needham to $26. Fundamentals are improving and the company is returning cash to investors, Needham said. Buy rating.

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