Amerigas Partners
(APU) was initiated at UBS with a buy rating. The company has a strong balance sheet and synergy opportunities from recent acquisitions, UBS said. $47 price target.

Ball Corp. (BLL - Get Report) was upgraded at Bank of America/Merrill Lynch to neutral from buy. Earnings and returns should accelerate in 2014, BofA/Merrill said. $56 price target.

Carnival (CCL) was upgraded to buy at TheStreet Ratings.

Dean Foods (DF) was upgraded to hold at TheStreet Ratings.

Gogo (GOGO - Get Report) was downgraded at Morgan Stanley to underweight from equal-weight. Valuation call, as the company is trading at 22 times expected 2016 EBITDA.

Kohl's (KSS) was downgraded at BMO Capital to market perform. $55 price target. Estimates were also cut, given the company's lower sales outlook, BMO Capital said.

Allscripts (MDRX - Get Report) was upgraded at Leerink Swann to outperform. $18 price target. Company is shifting its strategy, which could boost growth, Leerink Swann said.

NextEra Energy (NEE) was upgraded at UBS to buy from neutral. Locking in PTC eligibility, UBS said. $95 price target.

Pentair (PNR) was upgraded at Keybanc to buy from hold. $80 price target. Company had an upbeat analyst day and can likely achieve earnings of $5 a share in 2015, Keybanc said.

Prudential (PRU - Get Report) was downgraded at Deutsche Bank to hold from buy. Valuation call, based on a $96 price target, Deutsche Bank said.

Silgan (SLGN) was downgraded at Bank of America/Merrill Lynch to underperform. Valuation call, based on a $49 price target, BofA/Merrill Lynch said.

Transdigm (TDG) was upgraded at Keybanc to buy from hold. $170 price target. Stock has underperformed its peers year to date and offers an attractive entry point, Keybanc said.

Tetra Tech ( TTEK) was upgraded at Brean Capital to buy. $32 price target. Company is posting strong results and is leveraged to improving end-market demand, Brean Capital said.

Stock Comments / EPS Changes (AMZN) price target was increased at Morgan Stanley to $404. AWS can continue to drive growth, Morgan Stanley said. Overweight rating.

Best Buy (BBY) numbers were increased at B. Riley to $49. Estimates were also increased, as the company will likely continue to cut costs, B. Riley said.

CME Group (CME) numbers were increased at BMO Capital. Estimates were increased through 2015. Company is raising transaction fees. Outperform rating and new $86 price target, BMO Capital said.

Kohl's (KSS) price target, estimates were lowered at Jefferies. The company had a third-quarter miss, but there is upside in SSS with loyalty program rollout and refreshed marketing, Jefferies said. $65 price targe and buy rating.

Viacom (VIA.B) price target, estimates were increased at UBS. Driven by strong domestic ad growth, UBS said. $82 price target and neutral rating.

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This article was written by a staff member of TheStreet.