Sezzle Inc Common Stock (SEZL) had the highest return in August 2023 by a mid-cap US stock, returning 258%.

ASSET	MONTH	% RETURN
Sezzle Inc Common Stock (SEZL)	August 2023	257.97%
VinFast Auto Ltd Ordinary Shares (VFS)	August 2023	212.7%
Telephone and Data Systems (TDS)	August 2023	166.96%
United States Cellular (USM)	August 2023	160.48%
Apellis Pharmaceuticals (APLS)	August 2023	66.44%
Belite Bio Inc ADR (BLTE)	August 2023	51.32%
Upwork (UPWK)	August 2023	44.21%
Capri (CPRI)	August 2023	43.1%
Dlocal (DLO)	August 2023	42.36%
Powell Industries (POWL)	August 2023	38.26%
Revolution Medicines (RVMD)	August 2023	37.59%
Rhythm Pharmaceuticals (RYTM)	August 2023	36.97%
Celsius (CELH)	August 2023	36.59%
Globalstar (GSAT)	August 2023	35.85%
Abercrombie & Fitch (ANF)	August 2023	35.6%
Nextnav Acquisition (NN)	August 2023	35%
Paymentus (PAY)	August 2023	34.34%
Hawkins (HWKN)	August 2023	34.32%
Sterling Construction (STRL)	August 2023	32.56%
Remitly Global (RELY)	August 2023	31.88%
Advantage Solutions (ADVWW)	August 2023	31.58%
IES (IESC)	August 2023	31.54%
Ideaya Biosciences (IDYA)	August 2023	31.48%
Fabrinet (FN)	August 2023	30.96%
Camtek (CAMT)	August 2023	29.62%

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