Benzinga's Top Upgrades, Downgrades For February 22, 2018 - Applied Optoelectronics (NASDAQ:AAOI), Alkermes (NASDAQ:ALKS)

Analysts at Argus upgraded Cognizant Technology Solutions Corp (NASDAQ:CTSH) from Hold to Buy. Cognizant Tech shares gained 1.23 percent to $82.81 in pre-market trading.
Analysts at Baird upgraded MSA Safety Incorporated (NYSE:MSA) from Neutral to Outperform. MSA Safety shares rose 4.96 percent to close at $80.25 on Wednesday.
KLR Group upgraded Newfield Exploration Co. (NYSE:NFX) from Hold to Buy. Newfield Exploration shares fell 9.83 percent to close at $23.20 on Wednesday.
Stifel Nicolaus upgraded Momenta Pharmaceuticals, Inc. (NASDAQ:MNTA) from Hold to Buy. Momenta Pharmaceuticals shares rose 2.51 percent to close at $16.35 on Wednesday.
Susquehanna upgraded KLA-Tencor Corp (NASDAQ:KLAC) from Negative to Neutral. KLA-Tencor shares rose 0.30 percent to $110.00 in pre-market trading.
DA Davidson upgraded Wolverine World Wide, Inc. (NYSE:WWW) from Neutral to Buy. Wolverine World Wide shares fell 3.97 percent to close at $29.51 on Wednesday.
RBC Capital upgraded Clovis Oncology Inc (NASDAQ:CLVS) from Sector Perform to Outperform. Clovis Oncology shares rose 8.85 percent to $59.79 in pre-market trading.
Analysts at Citigroup upgraded Warrior Met Coal Inc (NYSE:HCC) from Neutral to Buy. Warrior Met Coal shares fell 1.07 percent to close at $30.40 on Wednesday.

Analysts at Citigroup downgraded U.S. Silica Holdings Inc (NYSE:SLCA) from Buy to Neutral. US Silica rose 0.40 percent to $25.25 in pre-market trading.
HSBC downgraded Telecom Argentina SA (ADR) (NYSE:TEO) from Hold to Reduce. Telecom Argentina shares fell 0.55 percent to close at $34.09 on Wednesday.
Jefferies downgraded Alkermes Plc (NASDAQ:ALKS) from Buy to Hold. Alkermes shares fell 2.41 percent to close at $63.19 on Wednesday.
JP Morgan downgraded Jeld-Wen Holding Inc (NYSE:JELD) from Overweight to Neutral. JELD-WEN shares fell 8.34 percent to close at $34.50 on Wednesday.
Craig-Hallum downgraded Applied Optoelectronics (NASDAQ:AAOI) from Hold to Sell. Applied Optoelectronics shares closed at $34.55 on Wednesday.
JP Morgan downgraded Macquarie Infrastructure (NYSE:MIC) from Overweight to Neutral. Macquarie Infrastructure shares closed at $63.62 on Wednesday.

DA Davidson initiated coverage on Nordson Corporation (NASDAQ:NDSN) with a Buy rating. The price target for Nordson is set to $160. Nordson shares closed at $139.33 on Wednesday.
Analysts at Canaccord Genuity initiated coverage on Helios and Matheson Analytics Inc (NASDAQ:HMNY) with a Buy rating. The price target for Helios and Matheson Analytics is set to $15. Helios and Matheson Analytics shares closed at $4.50 on Wednesday.
Analysts at B. Riley initiated coverage on Asterias Biotherapeutics Inc (NYSE:AST) with a Buy rating. The price target for Asterias Biotherapeutics is set to $6. Asterias Biotherapeutics closed at $2.05 on Wednesday.
Roth Capital initiated coverage on Arqule (NASDAQ:ARQL) with a Buy rating. The price target for Arqule is set to $5. Arqule closed at $1.67 on Wednesday.
Barrington Research initiated coverage on iPic Entertaiment (NASDAQ:IPIC) with an Outperform rating. The price target for iPic Entertaiment is set to $15. iPic Entertaiment closed at $12.86 on Wednesday.