Top Analyst Upgrades and Downgrades: BioCryst, Exxon, FCA, HPE, IAMGOLD, Mallinckrodt, Rockwell Collins and More

AAR Corp. (NYSE: AIR) was started as Hold at Canaccord Genuity.

Emerge Energy Services L.P. (NYSE: EMES) was started as Neutral with an $8 fair value estimate (versus a $6.83 close) at Janney.

Evolent Health Inc. (NYSE: EVH) was reiterated as Buy with a $28 price target (versus a $17.70  close) at Jefferies, with the firm noting that investors should buy the dip after a 27% drop since its early August earnings report.

Hi-Crush Partners L.P. (NYSE: HCLP) was started as Neutral with a $10 fair value estimate (versus an $8.20 close) at Janney.

Interpublic Group of Companies Inc. (NYSE: IPG) was raised to Buy from Neutral at Citigroup.

Mallinckrodt PLC (NYSE: MNK) was downgraded to Equal Weight from Overweight at Morgan Stanley.

Novo Nordisk A/S (NYSE: NVO) was raised to Neutral from Underperform at Merrill Lynch.

Omnicom Group Inc. (NYSE: OMC) was raised to Neutral from Sell at Citigroup.

PayPal Holdings Inc. (NASDAQ: PYPL) was reiterated as Buy with a $70 target price (versus a $61.27 close) at Jefferies.

Rockwell Collins Inc. (NYSE: COL) is being acquired and multiple firms have removed their Buy or Outperform ratings now. Canaccord Genuity and Drexel Hamilton both cut its rating to Hold after the merger announcement.

Thermo Fisher Scientific Inc. (NYSE: TMO) was started as Overweight with a $220 price target (versus a $186.02 close) at Morgan Stanley.

Other grouped research notes released in recent days were seen as follows:

JPMorgan has three top internet picks for the rest of 2017.

Four contrarian tech stocks could end up as huge winners for investors.

Merrill Lynch gets more positive on U.S. steel sector stocks.

Four stocks should be winners from the recovery and rebuilding efforts after Hurricane Harvey.

How YogaWorks could double off its fresh lows after a dismal IPO.

Merrill Lynch has five ultra-safe dividend stocks that would hold up quite well if the stock market were to get the elusive correction.

Tuesday’s top analyst calls included Chesapeake Energy, Lululemon Athletica, Oracle, U.S. Steel, Walt Disney, YogaWorks and many more.

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