best mid cap stock from 1 jan 2020 to 30 sep 2020

Sunrun (RUN) had the highest return between January 1, 2020 and September 30, 2020 by a mid-cap US stock, returning 450.9%.

ASSET DATE % RETURN
Sunrun (RUN)
1/1/2020 - 9/30/2020
450.89%
Nio Inc Class A ADR (NIO)
1/1/2020 - 9/30/2020
417.56%
Celsius (CELH)
1/1/2020 - 9/30/2020
370.19%
Plug Power (PLUG)
1/1/2020 - 9/30/2020
317.76%
Twist Bioscience (TWST)
1/1/2020 - 9/30/2020
258.01%
iRhythm Technologies (IRTC)
1/1/2020 - 9/30/2020
246.69%
Peloton Interactive (PTON)
1/1/2020 - 9/30/2020
243.39%
Sitime (SITM)
1/1/2020 - 9/30/2020
223.19%
Wayfair (W)
1/1/2020 - 9/30/2020
217.59%
Enphase Energy (ENPH)
1/1/2020 - 9/30/2020
213.2%
Quidel (QDEL)
1/1/2020 - 9/30/2020
191.57%
Penn National Gaming (PENN)
1/1/2020 - 9/30/2020
179.94%
New Fortress Energy LLC (NFE)
1/1/2020 - 9/30/2020
178.81%
Protagonist Therapeutics (PTGX)
1/1/2020 - 9/30/2020
175.74%
Etsy (ETSY)
1/1/2020 - 9/30/2020
172.04%
Canoo (GOEVW)
1/1/2020 - 9/30/2020
165.52%
Bill Com (BILL)
1/1/2020 - 9/30/2020
161.5%
TG Therapeutics (TGTX)
1/1/2020 - 9/30/2020
140.86%
Vaxcyte  (PCVX)
1/1/2020 - 9/30/2020
137.4%
Riot Blockchain (RIOT)
1/1/2020 - 9/30/2020
136.84%
Bloom Energy (BE)
1/1/2020 - 9/30/2020
135.83%
Boston Beer (SAM)
1/1/2020 - 9/30/2020
132.75%
CleanSpark (CLSK)
1/1/2020 - 9/30/2020
132.37%
Marathon Digital (MARA)
1/1/2020 - 9/30/2020
122.73%
Calix (CALX)
1/1/2020 - 9/30/2020
122.25%
Mid-cap stocks are treated as having a market cap between $2B and $10B.