Benzinga's Top Upgrades, Downgrades For February 20, 2019

Barclays upgraded Dril-Quip, Inc. DRQ from Underweight to Equal-Weight. Dril-Quip shares fell 0.66 percent to close at $38.84 on Tuesday.
Bank of America upgraded American Axle & Manufact. Holdings, Inc. AXL from Neutral to Buy. American Axle shares gained 1.6 percent to $16.87 in pre-market trading.
Barclays upgraded Transocean LTD RIG from Underweight to Overweight. Transocean shares rose 1.5 percent to $8.86 in pre-market trading.
Barclays upgraded Diamond Offshore Drilling Inc DO from Underweight to Overweight. Diamond Offshore Drilling shares fell 0.58 percent to close at $10.29 on Tuesday.

Stifel Nicolaus downgraded Trade Desk Inc TTD from Buy to Hold. Trade Desk shares fell 2.9 percent to $157.00 in pre-market trading.
Morgan Stanley downgraded Instructure Inc INST from Overweight to Equal-Weight. Instructure shares fell 7.2 percent to $39.50 in pre-market trading.
BMO Capital downgraded National Health Investors Inc NHI from Market Perform to Underperform. National Health Investors shares fell 3 percent to $78.00 in pre-market trading.
SunTrust Robinson Humphrey downgraded The Ultimate Software Group, Inc. ULTI from Buy to Hold. Ultimate Software shares rose 0.02 percent to close at $332.93 on Tuesday.
Raymond James downgraded Pure Storage Inc PSTG from Outperform to Market Perform. Pure Storage shares fell 2.6 percent to $18.81 in pre-market trading.
RBC Capital downgraded Uniti Group Inc UNIT from Outperform to Sector Perform. Uniti Group shares rose 1 percent to $12.63 in pre-market trading.
UBS downgraded Charles Schwab Corporation SCHW from Neutral to Sell. Charles Schwab shares fell 2.5 percent to $45.87 in pre-market trading.
Gabelli & Co. downgraded Palo Alto Networks Inc PANW from Buy to Hold. Palo Alto shares fell 1.3 percent to $226.91 in pre-market trading.
Goldman Sachs downgraded Southwest Airlines Co LUV from Neutral to Sell. Southwest shares fell 4.2 percent to $55.25 in pre-market trading.
JP Morgan downgraded Ecolab Inc. ECL from Overweight to Neutral. Ecolab shares fell 1.4 percent to $164.97 in pre-market trading.

Barclays initiated coverage on Veeva Systems Inc VEEV with an Equal-Weight rating. The price target for Veeva is set to $130. Veeva shares closed at $120.40 on Tuesday.
Chardan Capital initiated coverage on Kodiak Sciences Inc KOD with a Buy rating. The price target for Kodiak Sciences is set to $22.50. Kodiak Sciences shares closed at $6.83 on Tuesday.
Analysts at JP Morgan initiated coverage on National Energy Services Reunited Corp NESR with an Overweight rating. National Energy Services closed at $8.45 on Tuesday.
Analysts at H.C. Wainwright initiated coverage on Homology Medicines Inc FIXX with a Buy rating. The price target for Homology Medicines is set to $36. Homology Medicines shares closed at $24.03 on Tuesday.