York Space Systems (YSS) had the highest return on April 9 by a small-cap US stock, returning 29.1%.

ASSET	DATE	% RETURN
York Space Systems (YSS)	4/9/2026	29.07%
MapLight Therapeutics, Inc Common Stock (MPLT)	4/9/2026	23.73%
Cypherpunk Technologies (CYPH)	4/9/2026	23.49%
Eos Energy Enterprises (EOSE)	4/9/2026	20.2%
Suncrete, Inc Class A Common Stock (RMIX)	4/9/2026	18.59%
REalloys (ALOY)	4/9/2026	17.34%
SharonAI Holdings, Inc Class A Common Stock (SHAZ)	4/9/2026	17.07%
New Era Energy & Digital (NUAI)	4/9/2026	17.07%
Oric Pharmaceuticals (ORIC)	4/9/2026	16.63%
Indaptus Therapeutics (INDP)	4/9/2026	16.35%
Inhibrx Biosciences (INBX)	4/9/2026	14.06%
Lotus Technology (LOT)	4/9/2026	14.06%
Climb Bio (CLYM)	4/9/2026	13.54%
Innovative Aerosystems (IA)	4/9/2026	12.75%
Simply Good Foods (SMPL)	4/9/2026	12.7%
Turning Point Brands (TPB)	4/9/2026	12.3%
Immix Biopharma (IMMX)	4/9/2026	12.2%
Jade Biosciences (JBIO)	4/9/2026	11.64%
Twin Disc (TWIN)	4/9/2026	11.6%
Ocular Therapeutix (OCUL)	4/9/2026	11.11%
Advantage Solutions (ADV)	4/9/2026	11%
Gogo (GOGO)	4/9/2026	10.84%
Six Flags Entertainment (FUN)	4/9/2026	10.72%
Power Solutions International, Inc Common Stock (PSIX)	4/9/2026	10.37%
Blue Moon Metals (BMM)	4/9/2026	10.3%

Small-cap stocks are treated as having a market cap between $300M and $2B.