Kingsoft Cloud Holdings (KC) had the highest return in March 2023 by a mid-cap US stock, returning 120.6%.

ASSET	MONTH	% RETURN
Kingsoft Cloud Holdings (KC)	March 2023	120.6%
Enovix (ENVX)	March 2023	60.5%
Riot Blockchain (RIOT)	March 2023	56.58%
Viking Therapeutics (VKTX)	March 2023	51.23%
Arlington Asset Investment (AI)	March 2023	47.3%
BridgeBio Pharma (BBIO)	March 2023	44.93%
Lifestance Health (LFST)	March 2023	44.83%
Terawulf (WULF)	March 2023	44.62%
Asana (ASAN)	March 2023	42.29%
Protagonist Therapeutics (PTGX)	March 2023	41.8%
Equinox Gold (EQX)	March 2023	39.57%
RLX Technology (RLX)	March 2023	38.43%
Burford Capital (BUR)	March 2023	35.37%
Harmony Gold Mining (HMY)	March 2023	34.42%
Vertex (VERX)	March 2023	31.95%
Renew Energy Global (RNW)	March 2023	30.09%
IONQ (IONQ)	March 2023	29.2%
Embraer SA ADR (ERJ)	March 2023	26.31%
Brookfield Renewable (BEPC)	March 2023	25.72%
Coeur Mining (CDE)	March 2023	25.47%
Blackbaud (BLKB)	March 2023	24.53%
DigitalOcean (DOCN)	March 2023	22.87%
Rumble (RUM)	March 2023	22.7%
Marathon Digital (MARA)	March 2023	21.45%
Pan American Silver (PAAS)	March 2023	21.08%

Mid-cap stocks are treated as having a market cap between $2B and $10B.