Analysts' Actions: BIIB FSLR GOOG LNKD

NEW YORK (TheStreet) -- CHANGE IN RATINGS

Biogen Idec (BIIB) was upgraded at Canaccord Genuity to buy. $187 price target. Expect an early launch for TEC, Canaccord Genuity said.

CoreSite Realty (COR) was upgraded to buy at TheStreet Ratings.

Darden (DHI) was upgraded at Bank of America/Merrill Lynch to neutral from underperform. $50 price target. Commitment to raise dividend trumps lower guidance, BofA/Merrill said.

DigitalGlobe (DGI) was upgraded to buy at TheStreet Ratings.

First Cash Financial Services (FCFS) was downgraded at Jefferies to hold from buy. Downgrading to hold on valuation, Jefferies said.

First Solar (FSLR) was downgraded at Robert Baird from outperform to neutral. $25 price target. Management has limited near-term visibility, Robert Baird said.

First Solar was downgraded at Bank of America/Merrill Lynch to underperform from buy. $25 price target. Solid results, disappointing outlook.

Google (GOOG) was upgraded at Bank of America/Merrill Lynch to buy. $920 price target. Expect the company to expand margins in the coming quarters, BofA/Merrill said.

GrafTech International (GTI) was downgraded at Goldman Sachs to sell from neutral. $5.50 price target. Worsening electrode oversupply structural issue, Goldman said.

Graftech was downgraded at J.P. Morgan to neutral. The company lacks earnings leverage, J.P. Morgan said.

Invensense (INVN) was downgraded at Robert Baird from outperform to neutral. Valuation call, based on a $13 price target, Baird said.

Lincoln National (LNC) was upgraded at Bank of America/Merrill Lynch. $34 price target. Company has the lowest multiple in the industry, BofA/Merrill said.

LinkedIn (LNKD) was initiated with a buy rating at Wunderlich. $195 price target. Company has a large competitive advantage and solid revenue visibility, Wunderlich said.

Allscripts (MDRX) was upgraded at Credit Suisse from neutral to outperform. $15 price target. New management can stabilize the business, Credit Suisse said.

Norwegian Cruise Line (NCLH) was initiated with a neutral rating at Goldman Sachs. $28 price target. Best in class, but valuation on an even keel, Goldman said.

Norwegian Cruise (NCLH) was initiated with an overweight rating at J.P. Morgan. $36 price target. Company can continue to increase price and yields, J.P. Morgan said.

Oceaneering (OII) was upgraded at Sterne Agee from neutral to buy. $75 price target. Company can generate robust earnings and cash flow over the next several years, Sterne Agee said.

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