Prudential Financial ( PRU) was downgraded at Bank of America/Merrill Lynch. $69 price target. Valuation call, as the stock is up 22% year to date, BofA/Merrill said.

Thoratec ( THOR) was downgraded at Lazard Capital Markets to neutral. There is limited visibility in the LVAD market, Lazard Capital Markets said.

T-Mobile ( TMUS) was upgraded at UBS to buy from neutral. The company is at an inflection point and should see growth in postpaid net adds, UBS said. Price target goes to $24.

STOCK COMMENTS/EPS CHANGES

Apollo Global ( APO) price target and estimates were increased at UBS. APO is monetizing its private equity portfolio, which should lead to cash distributions, said UBS. Price target goes to $32.

BlackRock ( BLK) price target and estimates were increased at UBS to reflect the company's scale advantage in a changing bond market. Price target goes to $310.

Google ( GOOG) price target was raised at Bank of America/Merrill Lynch. Shares are now seen reaching $950. Internet sector is seeing multiple expansion, BofA/Merrill said. Buy rating.

Chipotle ( CMG) price target was boosted at Miller Tabak. Shares are now seen reaching $395. Expect sales growth to accelerate through 2014, Miller Tabak said. Buy rating.

Endo Health price target and estimates were reduced at UBS. The FDA denied Opana CP, said UBS. Price target goes to $39.

FirstEnergy ( FE) price target and estimates were increased at UBS. Estimates were increased on higher first-quarter results and ahead of key catalysts, said UBS. Price target goes to $44.

Google ( GOOG) price target was raised at Bank of America/Merrill Lynch. Shares are now seen reaching $950. Internet sector is seeing multiple expansion, BofA/Merrill Lynch said. Buy rating.

Michael Kors ( KORS) was added to the Best Ideas List at Morgan Stanley. Company's earnings potential is among the best in the industry and not yet reflected in the stock, Morgan Stanley said. $71 price target.

T. Rowe Price ( TROW) estimates were reduced at UBS. Slowing organic growth rates, said UBS. An overly conservative balance sheet is also leaving money on the table, UBS also said.

United Rentals ( URI) price target was increased at Citigroup to $70 on higher market/peer multiples. End-market outlook remains favorable, Citi said.

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