Scholar Rock (SRRK) had the highest return in October 2024 by a mid-cap US stock, returning 257.7%.

ASSET	MONTH	% RETURN
Scholar Rock (SRRK)	October 2024	257.74%
Oklo (OKLO)	October 2024	175.92%
Trump Media & Technology (DJT)	October 2024	105.11%
PureCycle Technologies (PCTTW)	October 2024	98.8%
GeneDx (WGS)	October 2024	93.62%
Arcadium Lithium (ALTM)	October 2024	88.46%
Peloton Interactive (PTON)	October 2024	82.8%
Wave Life Sciences (WVE)	October 2024	68.01%
Rigetti Computing (RGTI)	October 2024	67.28%
Nuscale Power (SMR)	October 2024	65%
Nextnav Acquisition (NN)	October 2024	56.18%
Lemonade (LMND)	October 2024	44.32%
Terawulf (WULF)	October 2024	39.32%
Purecycle Technologies (PCT)	October 2024	38.95%
Brinker International (EAT)	October 2024	36.6%
Tarsus Pharmaceuticals (TARS)	October 2024	35.27%
Remitly Global (RELY)	October 2024	34.38%
Mirion Technologies (MIR)	October 2024	34.06%
Astera Labs, Inc Common Stock (ALAB)	October 2024	33.11%
BBVA Banco Frances SA ADR (BBAR)	October 2024	32.79%
Empresa Distribuidora y Comercializadora Norte SA ADR (EDN)	October 2024	31.97%
Herc (HRI)	October 2024	31.33%
Trupanion (TRUP)	October 2024	30.24%
Upwork (UPWK)	October 2024	29.51%
MYR (MYRG)	October 2024	29.04%

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