NEW YORK (TheStreet) -- RATINGS CHANGES

AMC Networks (AMCX - Get Report) was downgraded to hold from buy by Topeka, which set a price target of $85. The firm cited valuation as the stock is up more than 28% year-to-date.

AT&T (T - Get Report) was upgraded to overweight by Barclays, which set a $39 price target, saying that the closing of the DirecTV (DTV - Get Report) deal should bring many revenue and cost levers.

Echo Global Logistics (ECHO - Get Report) was reinstated and upgraded to outperform from neutral by Credit Suisse, which set a $39 price target. Following the close of the Command acquisition, Credit Suisse has increased its 2015 EPS estimate to $1.03 from 98 cents.

Groupon (GRPN - Get Report) was downgraded to sell by TheStreet Ratings.You can view the full analysis from the report here: GRPN Ratings Report.

Molson Coors (TAP - Get Report) was downgraded to neutral from buy by Nomura, which set a $74 price target, saying U.S. volume and pricing trends have likely worsened.

Newmont Mining (NEM - Get Report) was reinstated by Credit Suisse with an outperform rating and $30 price target. Newmonth's net asset value is largely unchanged at $16.84 per share from $16.96 per share, and optimizations could add about $254 million to NAV, Credit Suisse said.

PetroChina (PTR - Get Report) was downgraded to hold by TheStreet Ratings. You can view the full analysis from the report here: PTR Ratings Report.

Team Health (TMH) was upgraded to overweight by Keybanc, which set a $71 price target and raised its estimates, saying the company should continue to grow through acquisitions.

Western Digital (WDC - Get Report) was downgraded to neutral from overweight by J.P. Morgan, which said the sector should continue to be hurt by negative PC data.