Soleno Therapeutics (SLNO) had the highest return in Q3 2023 by a mid-cap US stock, returning 604.3%.

ASSET	QUARTER	% RETURN
Soleno Therapeutics (SLNO)	Q3 2023	604.3%
Array Digital Infrastructure (AD)	Q3 2023	145.12%
Belite Bio Inc ADR (BLTE)	Q3 2023	128.32%
Telephone and Data Systems (TDS)	Q3 2023	122.95%
Immunovant (IMVT)	Q3 2023	102.69%
Applied Opt (AAOI)	Q3 2023	75.38%
Camtek (CAMT)	Q3 2023	74.89%
Centrus Energy (LEU)	Q3 2023	74.11%
Crinetics Pharmaceuticals (CRNX)	Q3 2023	65.31%
Dlocal (DLO)	Q3 2023	58.56%
Wave Life Sciences (WVE)	Q3 2023	58.4%
Alpha Metallurgical Resources (AMR)	Q3 2023	57.31%
Paymentus (PAY)	Q3 2023	56.02%
Uranium Energy (UEC)	Q3 2023	54.19%
Miniso Group Holding (MNSO)	Q3 2023	52.51%
MakeMyTrip (MMYT)	Q3 2023	50.97%
Abercrombie & Fitch (ANF)	Q3 2023	49.88%
Rush Street Interactive (RSI)	Q3 2023	49.03%
TAL Education (TAL)	Q3 2023	48.86%
Capri (CPRI)	Q3 2023	45.61%
Praxis Precision Medicines (PRAX)	Q3 2023	44.92%
HUTCHMED DRC (HCM)	Q3 2023	43.56%
American Eagle Outfitters (AEO)	Q3 2023	41.11%
Perdoceo Education (PRDO)	Q3 2023	40.31%
Olema Pharmaceuticals (OLMA)	Q3 2023	39.71%

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