RATINGS CHANGES

Coach (COH) was upgraded to buy at TheStreet Ratings. 

Duke Energy (DUK - Get Report) was downgraded to market perform from outperform at Wells Fargo. The valuation is not attractive, Wells said. 

Fitbit (FIT - Get Report) was initiated with an outperform rating at Oppenheimer. $25 price target. The company is a market leader and should see tremendous growth in the next 5 to 10 years. 

Integrated Device Technology (IDTI) was downgraded to neutral from buy at Bank of America/Merrill Lynch. $26 price target. The company guided for slower growth, analysts said. 

Integrated Device Technology was upgraded to outperform from neutral at Wedbush Securities. $27 price target. Expectations have to be reset to a more reasonable level, Wedbush said. 

Mattel (MAT - Get Report) was upgraded to buy from hold at Stifel. $33 price target. Core brands are stabilizing and the company has a better entertainment product pipeline, Stifel said. 

Netflix (NFLX - Get Report) was upgraded to overweight from neutral at Piper Jaffray. $122 price target. The valuation is more attractive, now that the stock is down 30% over the past two months, Piper said. 

Praxair (PX) was downgraded to sector weight from overweight at Keybanc. The company is seeing lower demand being hurt by the stronger dollar, Keybanc said. 

Southwestern Energy (SWN - Get Report) was downgraded to neutral from overweight at JPMorgan. $8 price target. The company lacks near-term catalysts, JPMorgan said. 

Tesla Motors (TSLA - Get Report) was downgraded to sell at TheStreet Ratings.

Twitter (TWTR - Get Report) was downgraded to sell from hold at Stifel. $14 price target. Earnings estimates were also cut, given lower usage rates. 

This article was written by a staff member of TheStreet.