Dril-Quip (DRQ) (VRUS) (AEE) (ATK) (CHK) (COR) Price Targets Changed

Dril-Quip (NYSE: DRQ), Pharmasset (NASDAQ: VRUS), Ameren Co. (NYSE: AEE), Alliant Techsystems Inc. (NYSE: ATK), Chesapeake Energy (NYSE: CHK) and CoreSite Realty Corp. (NYSE: COR) had price targets on them adjusted by analysts.

Dril-Quip (DRQ) had its price target lowered by Bank of America (NYSE:BAC) to $76.00.

Ameren Co. (AEE) had its price target raised by UBS AG (NYSE:UBS) from $28.00 to $31.00. They have a “Neutral” rating on the company.

Pharmasset (VRUS) had its price target raised by Goldman Sachs (NYSE:GS) to $77.00.

Alliant Techsystems Inc. (ATK) had its price target lowered by UBS AG (NYSE:UBS) from $100.00 to $80.00. They have a “Buy” rating on the company.

Chesapeake Energy (CHK) had its price target raised by Brean Murray to $43.00.

CoreSite Realty Corp. (COR) had its price target raised by Jefferies (NYSE:JEF) to $19.00.