Telephone and Data Systems (TDS) had the highest return in August 2023 by a mid-cap US stock, returning 167%.

ASSET	MONTH	% RETURN
Telephone and Data Systems (TDS)	August 2023	166.96%
Array Digital Infrastructure (AD)	August 2023	160.48%
Telesat (TSAT)	August 2023	112.7%
Tango Therapeutics (TNGX)	August 2023	94.89%
Apellis Pharmaceuticals (APLS)	August 2023	66.44%
Praxis Precision Medicines (PRAX)	August 2023	53.13%
Belite Bio Inc ADR (BLTE)	August 2023	51.32%
Capri (CPRI)	August 2023	43.1%
Dlocal (DLO)	August 2023	42.36%
Rhythm Pharmaceuticals (RYTM)	August 2023	36.97%
Celsius (CELH)	August 2023	36.59%
Abercrombie & Fitch (ANF)	August 2023	35.6%
Acm Research (ACMR)	August 2023	35.08%
Nextnav Acquisition (NN)	August 2023	35%
Eos Energy Enterprises (EOSE)	August 2023	34.85%
Paymentus (PAY)	August 2023	34.34%
Hawkins (HWKN)	August 2023	34.32%
Bitdeer Technologies Group Class A Ordinary Shares (BTDR)	August 2023	32.2%
Remitly Global (RELY)	August 2023	31.88%
Ideaya Biosciences (IDYA)	August 2023	31.48%
Fastly, Inc Class A Common Stock (FSLY)	August 2023	31.15%
Camtek (CAMT)	August 2023	29.62%
Corcept Therapeutics (CORT)	August 2023	28.45%
VNET Group Inc DRC (VNET)	August 2023	28.42%
Amneal Pharmaceuticals, Inc Class A Common Stock (AMRX)	August 2023	27.81%

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