Amsurg Corp. (NASDAQ: AMSG) was started as Market Perform at Wells Fargo.
Berry Plastics Group Inc. (NYSE: BERY) was started as Overweight and was assigned a $45 price target (versus a $37.00 close) at Barclays.
Colliers International Group Inc. (NASDAQ: CIGI) was started with an Outperform rating and was assigned a $52 price target (versus a $35.56 close) at RBC Capital Markets.
Denbury Resources Inc. (NYSE: DNR) was raised to Hold from Sell at Stifel.
Genesis Energy L.P. (NYSE: GEL) was reiterated as Buy at Janney, and the firm raised its fair value estimate to $44 from $32.
Hi-Crush Partners L.P. (NYSE: HCLP) was raised to Strong Buy from Market Perform with a $17 price target (versus an $11.93 close) at Raymond James.
Infinity Pharmaceuticals Inc. (NASDAQ: INFI) saw its shared drop 69% to $1.36 on Tuesday after a poor drug test and after cutting 21% of its workforce. The stock was downgraded to Market Perform from Outperform at Wells Fargo. JMP Securities lowered its rating to Market Perform from Market Outperform. Other downgrades were seen on Tuesday.
Luxottica Group SpA (NYSE: LUX) was started as Outperform at Credit Suisse.
Marketo Inc. (NASDAQ: MKTO) was downgraded to Market Perform from Market Outperform at JMP Securities.
Mattress Firm Holding Corp. (NASDAQ: MFRM) was downgraded to Sector Weight from Overweight at Keybanc Capital Markets.
Monsanto Co. (NYSE: MON) was reiterated as Buy and the price target was raised to $128 from $111 (versus a $106.75 close) at Argus, with the firm noting that a Bayer buyout is still possible.
SCANA Corp. (NYSE: SCG) was downgraded to Underweight from Equal Weight at Morgan Stanley.
Tesoro Corp. (NYSE: TSO) was downgraded to Neutral from Outperform at Credit Suisse.
Ultra Petroleum Corp. (NYSE: UPL) was raised to Hold from Sell at Stifel.
United Therapeutics Corp. (NASDAQ: UTHR) was downgraded to Neutral from Buy and the price target was cut to $95 from $175 (versus a $107.26 close) at H.C. Wainwright.
Merrill Lynch has four stocks with Buy ratings that yield 7% to 9%.
Tuesday’s analyst upgrades and downgrades included Alaska Air, Altria, GoDaddy, GoPro, LinkedIn, Navistar and over a dozen more.