RATINGS CHANGES

Cheetah Mobile (CMCM) - Get Report was downgraded to sell at TheStreet Ratings. You can view the full analysis from the report here: CMCM.

Centene (CNC) - Get Report was upgraded to overweight at Barclays. $82 price target. Earnings estimates were also increased, given the Health Net acquisition, Barclays said.

Catalent (CTLT) - Get Report was upgraded to buy from neutral at Bank of America/Merrill Lynch. $28 price target. The valuation is more attractive, with shares down 29% year-to-date, analysts said.

CVS Health (CVS) - Get Report was downgraded to equal-weight at Morgan Stanley. $104 price target. The company is facing increased competition in the PBM market, Morgan Stanley said.

Express Scripts (ESRX) was downgraded to underweight at Morgan Stanley. $70 price target. Anthem resolution has been pushed out, Morgan Stanley said. 

Everyday Health (EVDY) was upgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: EVDY.

Corning (GLW) - Get Report was initiated with a buy rating at Citigroup. $23 price target. Display sentiment is too bearish and the company is leveraged to higher LCD screen sizes, Citi said.

Press Ganey (PGND) was downgraded to neutral from buy at Goldman Sachs. $39 price target. The valuation is less attractive, with shares up 38% over the past year, Goldman said.

Spirit Airlines (SAVE) - Get Report was upgraded to outperform from neutral at Credit Suisse. $55 price target. The company can deliver solid earnings growth, even with higher fuel prices, Credit Suisse said.

Yelp (YELP) - Get Report was upgraded to buy from hold at Deutsche Bank. $33 price target. Salesforce productivity has stabilized and ad units are improving, Deutsche said.

This article was written by a staff member of TheStreet.