NEW YORK (TheStreet) -- CHANGE IN RATINGS

Bruker

(BRKR) - Get Report

upgraded at BofA/Merrill to Neutral from Underperform, Bank of America/Merrill Lynch said. $19.50 price target. Fundamentals are improving.

Commtouch Software

(CTCH)

downgraded to hold at TheStreet Ratings.

Depomed

(DEPO)

upgraded to hold at TheStreet Ratings.

Groupon

(GRPN) - Get Report

upgraded at Piper from Neutral to Overweight, Piper Jaffray said. $8 price target. Expect the company to show better international growth.

Heckmann Corporation

(HEK)

downgraded at Jefferies to Hold from Buy, Jefferies said. $4.50 price target. Shale activity looks sluggish.

Verifone

(PAY)

downgraded at JP Morgan to Neutral, JP Morgan said. Recent earnings miss was worse than expected.

Polypore

(PPO)

downgraded at Wedbush from Outperform to Neutral, Wedbush said. $38 price target. Lithium segment continues to deteriorate.

Questcor

(QCOR)

upgraded at Mizuho from Neutral to Buy, Mizuho said. $41 price target. Company should exceed consensus expectations in the near term.

QEP Resources

(QEP) - Get Report

downgraded at Jefferies to Hold from Buy, Jefferies said. $34 price target. Ambiguous upstream value.

SVB Financial

(SIVB) - Get Report

downgraded at Sterne Agee from Buy to Neutral, Sterne Agee said. Valuation call, based on a $68 price target.

UnitedHealth Group

(UNH) - Get Report

upgraded at Oppeneheimer to Outperform from Perform, Oppenheimer said. $66 price target. Attractive in light of a pessimistic outlook.

Vantiv

(VNTV)

upgraded at Wells to Outperform, Wells Fargo said. Estimates also boosted, given improved customer spending.

STOCK COMMENTS / EPS CHANGES

Dish Network

(DISH) - Get Report

target raised at Jefferies to $38, Jefferies said. All eyes on wireless. Hold rating.

Google

(GOOG) - Get Report

target raised at Bernstein to $1,000, according to Bernstein Research. Company can benefit from push to mobile through smart phones and tablets. Outperform rating.

Google target boosted at Deutsche to $935, according to Deutsche Bank. See sentiment shifting in the mobile business. Buy rating.

Lithia Motors

(LADD)

estimates, target increased at Keybanc. LADD estimates were raised through 2014, Keybanc said. Company continues to gain market share and can expand on the East Coast. Buy rating.

RealPage

(RP) - Get Report

estimates, target reduced at Credit Suisse. Shares of RP now seen reaching $23, according to Credit Suisse. Estimates also cut, given the company's new guidance. Outperform rating.

Terex

(TEX) - Get Report

estimates, target boosted at Credit Suisse. Shares of TEX now seen reaching $46, according to Credit Suisse. Estimates also upped, given higher demand for cranes and AWP. Outperform rating.

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This article was written by a staff member of TheStreet.