AMSC, Dendreon: Analysts' New Ratings

Editor's Note: Green and red arrows refer to intraday stock price movement.

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

American Superconductor ( AMSC) was initiated with a Neutral rating at Wedbush. $25 price target. Timing of an acceleration in growth remain uncertain, Wedbush said.

Babcock & Wilcox ( BWC) was upgraded at Goldman Sachs from Neutral to Buy. Stock appears oversold, following its recent pullback, Goldman said.

DigitalGlobe ( DGI) was initiated with a Market Perform rating at Morgan Keegan. Valuation call, based on a $33 price target.

Dendreon ( DNDN) was started with a Buy rating at Collins Stewart. $55 price target. Company will likely ramp Provenge manufacturing capacity to meet customer demand, Collins Stewart said.

Edwards Lifesciences ( EW) was rated new Hold at Jefferies. Stock appears fully valued at current levels, Jefferies said.

FirstMerit ( FMER) was upgraded at Oppenheimer from Perform to Outperform. $19 price target. Estimates also boosted, as the company has multiple potential acquisition opportunities.

Granite Construction ( GVA) was downgraded at Goldman Sachs to Sell. Sentiment remains negative on the civil business, and funding is a concern, Goldman said.

Jacobs Engineering ( JEC) was upgraded at Goldman Sachs to Neutral. Backlog is inflecting, Goldman said.

Marriott ( MAR) was upgraded at Wells Fargo to Outperform. Valuation call, as it appears that isolated event led to a disappointing first quarter, Wells Fargo said.

Nokia ( NOK) was upgraded to Buy at Goldman Sachs. $12.40 price target. Company can cut costs and turn its business around, Goldman said.

Philip Morris ( PM) was downgraded at UBSfrom Buy to Neutral. $64.50 price target. Valuation call, as the stock has gained 12% year-to-date, UBS said.

Travelers ( TRV) was downgraded at Goldman Sachs from Neutral to Sell. Company has limited exposure to commercial and personal lines, Goldman said.

WR Berkley ( WRB) was upgraded at Goldman Sachs from Sell to Neutral. Consensus estimates appear to low, as pricing should ultimately recover, Goldman said.

XL Group ( XL) was upgraded at Goldman Sachs from Neutral to Buy. Company should see increased pricing, Goldman said.

End of report.

This article was written by a staff member of TheStreet.

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