RATINGS CHANGES

Advisory Board (ABCO) was downgraded to neutral from overweight at JPMorgan. $39 price target. The valuation is less attractive, as the stock is pricing in activist involvement. Also, the stock is up 43% year-to-date, JPMorgan said. 

Arista Networks (ANET) - Get Report was upgraded to hold from underperform at Jefferies. $100 price target. Port growth is exceeding expectations, Jefferies said. 

Avis Budget (CAR) - Get Report was downgraded to neutral from outperform at Credit Suisse. $38 price target. Guidance suggests a lackluster growth environment, Credit Suisse said. 

Circor (CIR) - Get Report was downgraded to sector weight from overweight at Keybanc. Earnings estimates were also cut, given lower demand in the energy business, Keybanc said. 

Capital One Financial (COF) - Get Report was upgraded to buy from neutral at Goldman Sachs. $110 price target. The company should deliver better earnings leverage, Goldman said. 

Cray (CRAY) - Get Report was upgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: CRAY.

Illinois Tool Works (ITW) - Get Report was downgraded to sell from neutral at Goldman Sachs. $121 price target. The company has low cyclical exposure and earnings upside potential, Goldman said. 

Owens Corning (OC) - Get Report was upgraded to buy from neutral at Goldman Sachs. $69 price target. Better insulation pricing should boost margins, Goldman said. 

Quintiles (Q) was upgraded to outperform from market perform at Wells Fargo. Merger story now appears less risky, Wells said. 

Superior Energy (SPN) was downgraded to neutral from buy at Jefferies. $19 price target. The valuation is less attractive, as the company has relatively low exposure to an industry recovery, Jefferies said. 

TTM Tech (TTMI) - Get Report was downgraded to neutral from overweight at JPMorgan. $18 price target. The valuation is less attractive, as the stock is up 169% over the past year, JPMorgan said. 

Workday (WDAY) - Get Report was upgraded to overweight from neutral at Piper Jaffray. $100 price target. Checks suggest that business has improved materially since the last quarter, Piper said. 

Cimarex (XEC) - Get Report was upgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: XEC.

This article was written by a staff member of TheStreet.