Redwire (RDW) had the highest return on May 14 by a mid-cap US stock, returning 17%.

ASSET	DATE	% RETURN
Redwire (RDW)	5/14/2026	17.02%
Fermi (FRMI)	5/14/2026	15.43%
Enphase Energy (ENPH)	5/14/2026	14.83%
Sellas Life Sciences (SLS)	5/14/2026	14.51%
Hyperliquid Strategies Inc Common Stock (PURR)	5/14/2026	13.33%
Fervo Energy Company Class A common stock (FRVO)	5/14/2026	13.24%
Pulse Biosciences (PLSE)	5/14/2026	13.01%
PLGO (PLGO)	5/14/2026	12.95%
Schneider National (SNDR)	5/14/2026	12.92%
Ondas (ONDS)	5/14/2026	12.21%
Bitdeer Technologies Group Class A Ordinary Shares (BTDR)	5/14/2026	10.65%
Lumen Technologies, Inc Common Stock (LUMN)	5/14/2026	8.84%
Figure Technology Solutions, Inc Class A Common Stock (FIGR)	5/14/2026	8.05%
ChronoScale (CHRN)	5/14/2026	7.63%
Celcuity LLC (CELC)	5/14/2026	7.35%
Energy of Minas Gerais Co DRC (CIG.C)	5/14/2026	7.27%
Cellebrite DI (CLBT)	5/14/2026	7.1%
Upstart Holdings (UPST)	5/14/2026	7.06%
Firefly Aerospace Inc Common Stock (FLY)	5/14/2026	6.87%
Copa (CPA)	5/14/2026	6.79%
Brinker International (EAT)	5/14/2026	6.74%
Klarna (KLAR)	5/14/2026	6.4%
Rigetti Computing (RGTI)	5/14/2026	6.11%
D-Wave Quantum Inc Common Stock (QBTS)	5/14/2026	6.09%
Planet Labs PBC (PL)	5/14/2026	5.93%

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