Analysts' Actions: ARO IBM IDCC NTAP THC

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Assurant ( AIZ) was upgraded at Sterne Agee to neutral. There was lless downward pressure on lender-placed premium rates than originally feared, said Sterne Agee. Price target goes to $51.

Aeropostale ( ARO) was downgraded at Goldman Sachs to sell from neutral. $10 price target. Company is facing increased competition, Goldman said.

Community Health ( CYH) was downgraded at Deutsche Bank to hold from buy. Higher health insurance coverage is largely priced into the sector, Deutsche said.

Health Management ( HMA) was downgraded at Deutsche Bank to hold from buy. Valuation call, following the recent run in the group, Deutsche Bank said.

IBM ( IBM) was upgraded to buy from neutral at UBS. The company is well positioned for the IT-as-a-service transition with a strong strategy and ability to execute, UBS said. Estimates were raised and the price target goes to $235.

IDCC ( IDCC) was downgraded to market perform at William Blair. Uncertain timing of future licensing deals, said William Blair.

NetApp ( NTAP) was downgraded at UBS from buy to neutral. The company could struggle in the IT-as-a-service era given its narrow product focus, UBS said. Price target was reduced to $37.

Starz Entertainment was upgraded at Lazard Capital Markets to neutral. Resolution of long-term concerns, said Lazard Capital Markets. Catalysts going forward include upside to first-quarter estimates and the potential success of TV show Da Vinci's Demons.

Tenet Healthcare ( THC) was downgraded at Deutsche Bank to hold from buy. Valuation call, as the sector is up an average of 67% over the past year, Deutsche Bank said.

Targa Resources ( TRGP) was downgraded at Morgan Stanley to equal-weight given the recent run in the stock. Price target goes to $70.

STOCK COMMENTS/EPS CHANGES

Advanced Auto Parts ( AAP) estimates were reduced at UBS through 2014 given a weaker-than-expected first quarter. Payroll taxes, delayed tax refunds and weather were all impacts, UBS said.

CSX ( CSX) estimates, price target were raised at Jefferies. Shares are now seen reaching $30. Estimates were also increased, as companies appear to be restocking inventory, Jefferies said. Underperform rating.

Ecolab ( ECL) estimates, price target were increased at Jefferies. Estimates were raised through 2014. Champion deal should add to earnings, Jefferies said. Buy rating and new $93 price target.

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