best performing stock in 2018 with market cap over 1 billion

Tandem Diabetes Care (TNDM) had the highest return in 2018 by a US stock with a market cap of $1B+, returning 1,515.7%.

ASSET YEAR % RETURN
Tandem Diabetes Care (TNDM)
2018
1,515.74%
Xpel (XPEL)
2018
326.68%
Twilio (TWLO)
2018
270.08%
Caredx (CDNA)
2018
240.19%
Arrowhead Pharmaceuticals (ARWR)
2018
236.59%
Harrow Health (HROW)
2018
234.71%
Vericel Corp Ord (VCEL)
2018
213.51%
Tilray (TLRY)
2018
206.03%
American Superconductor (AMSC)
2018
201.35%
MongoDB (MDB)
2018
179.79%
Trade Desk (TTD)
2018
154.02%
Okta (OKTA)
2018
149.71%
TKO (TKO)
2018
144.83%
PAR Technology (PAR)
2018
132.62%
Etsy (ETSY)
2018
132.05%
Xenon Pharmaceuticals (XENE)
2018
125.36%
Amedisys (AMED)
2018
121.38%
Goosehead Insurance (GSHD)
2018
119.08%
Glaukos (GKOS)
2018
116.87%
Energy of Minas Gerais Co DRC (CIG.C)
2018
113.92%
Evertec (EVTC)
2018
109.55%
DexCom (DXCM)
2018
107.91%
Krystal Biotech (KRYS)
2018
107.8%
Acm Research (ACMR)
2018
107.24%
Crocs (CROX)
2018
105.54%