NEW YORK (TheStreet) -- RATINGS CHANGES
American International Group (AIG) was downgraded to hold from buy by Deutsche Bank, which cited valuation, based on a 12-month price target of $64.
Avalanche (AAVL) was downgraded to market perform by William Blair, which set a 12-month price target of $24, saying the company had lower secondary efficacy with its Phase II-a trial.
Corning (GLW) was upgraded to outperform by RBC Capital, which set a 12-month price target of $26, saying the company is leveraged to the upcoming 4K television upgrade cycle.
Laboratory Corp. (LH) was started at overweight by Keybanc, which set a 12-month price target of $143, saying the company is attractively valued, relative to its accelerating growth.
Methode Electronics (MEI) was downgraded to neutral from outperform by Robert Baird, which said the stock has performed well, but to expect growth to decelerate in the coming quarters.
Twitter (TWTR) was downgraded to neutral from buy by MKM Partners, which set a 12-month price target of $39. MKM said that Twitter has long-term potential and significant upside if the company executes on user experience improvement, but that there are no catalysts for improving sentiment in the next two quarters, besides a possible deal with Google (GOOGL).
United Natural (UNFI) was downgraded to hold from buy by Argus on expectations of lower margins in the coming quarters.