NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Casey's General Stores ( CASY - Get Report) was initiated with a buy rating at Benchmark. Top-line growth and operating margin potential, said Benchmark. Price target is $73.

ING U.S. ( VOYA - Get Report) was initiated with a hold rating at Deutsche Bank and $31 price target. Given recent stock appreciation, the attractive business mix and turnaround are priced in, Deutsche Bank said.

Tableau Software ( DATA - Get Report) was initiated with a market outperform rating at JMP Securities. $65 price target. The company has a leading position in business analytics and has one of the fastest growth rates in the industry, JMP said.

Moody's ( MCO - Get Report) was downgraded at Benchmark to hold from buy. Price target is $71. Ratings revenue growth is up against tough comparisons and higher costs will limit EPS upside, Benchmark said.

Mad Catz ( MCZ) was downgraded to sell at TheStreet Ratings.

NTT DoCoMo ( DCM) was downgraded to hold at TheStreet Ratings.

Stock Comments / EPS Changes

CIGNA ( CI) price target was raised at Deutsche Bank to $80. The PBM deal with Catamaran will deliver significant accretion by 2015, Deutsche said.

Diamond Foods ( DMND) price target and estimates were raised at Jefferies. Estimates were increased to reflect better revenue and margin expectations, said Jefferies. Price target goes to $19.

Edison International ( EIX) estimates were reduced at Jefferies. Reflect significantly higher write-offs for the CPCU mandated cost disallowance, said Jefferies.

Navistar ( NAV) estimates were reduced at Jefferies. Messy second quarter, said Jefferies. Cash balances and EBITDA appear to be bottoming, Jefferies also said.

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This article was written by a staff member of TheStreet.