Analysts' Actions: AMZN TWC TWTR YELP YHOO

NEW YORK (TheStreet) -- RATINGS CHANGES

Amazon (AMZN) was upgraded at Argus to buy from hold. Twelve-month price target is $480. Recent pullback has created a favorable entry point.

Cree (CREE) was upgraded at Needham to buy from hold. Twelve-month price target is $64. Company should benefit from higher demand for LED lighting, Needham said.

Ever-Glory International (EVK) was downgraded to hold at TheStreet Ratings.

Family Dollar (FDO) was upgraded at Sterne Agee to neutral from underperform. Valuation call, based on a 12-month price target of $55, Sterne Agee said.

Greenhill (GHL) was upgraded at Nomura to neutral. Twelve-month price target is $49. Backlog is improving and the company offers a 4% dividend yield, Nomura said.

Genuine Parts (GPC) was upgraded at Goldman Sachs to neutral from sell. Twelve-month price target is $88. Earnings growth appears poised to reaccelerate, Goldman Sachs said.

JetBlue (JBLU) was upgraded at Argus to buy from hold. Twelve-month price target is $10. Company has expanded its route network and is finding ways to boost revenue, Argus said.

Lincoln National (LNC) was upgraded at Barclays to overweight from equal-weight. Based on increased confidence in company's ability to generate strong earnings growth and good ROE, Barclays said. Twelve-month price target is $59.

Precision Drilling (PDS) was upgraded at Morgan Stanley to overweight from underweight. Twelve-month price target is $16. Natural gas market should see meaningful secular growth and the company can gain market share, Morgan Stanley said.

Reinsurance Group of America (RGA) was downgraded at Barclays to equal-weight from overweight. Driven by increased competition and low expectations of EPS growth, Barclays said. Twelve-month price target is $81.

Sonic (SONC) was upgraded at Sterne Agee to buy from neutral. Twelve-month price target is $25. Company should see higher sales and margins in the coming quarters, Sterne Agee said.

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