Virgin Galactic (SPCE) had the highest return on May 29 by a small-cap US stock, returning 28.8%.

ASSET	DATE	% RETURN
Virgin Galactic (SPCE)	5/29/2026	28.75%
Indaptus Therapeutics (INDP)	5/29/2026	22.22%
C4 Therapeutics (CCCC)	5/29/2026	19.4%
Alpha Teknova (TKNO)	5/29/2026	16.38%
Absci (ABSI)	5/29/2026	13.07%
Terrestrial Energy (IMSR)	5/29/2026	12.72%
BUUU (BUUU)	5/29/2026	12.68%
ECARX Holdings Inc Class A Ordinary shares (ECX)	5/29/2026	12.38%
Rapid7 (RPD)	5/29/2026	11.73%
4D Molecular Therapeutics (FDMT)	5/29/2026	11.35%
Bandwidth (BAND)	5/29/2026	11.15%
Optimum Communications (OPTU)	5/29/2026	11.15%
ArriVent BioPharma, Inc Common Stock (AVBP)	5/29/2026	11.12%
Faeth Therapeutics (FTH)	5/29/2026	11.09%
Entera Bio (ENTX)	5/29/2026	10.66%
NGL Energy Partners (NGL)	5/29/2026	9.97%
Compass Pathways (CMPS)	5/29/2026	9.89%
Aeva Technologies, Inc Common Stock (AEVA)	5/29/2026	9.64%
Replimune (REPL)	5/29/2026	9.58%
Viant Technology (DSP)	5/29/2026	9.56%
Verra Mobility (VRRM)	5/29/2026	9.2%
PowerFleet (AIOT)	5/29/2026	8.61%
Cognyte Software (CGNT)	5/29/2026	8.54%
Ads Tec Energy (ADSE)	5/29/2026	8.5%
Unusual Machines (UMAC)	5/29/2026	8.45%

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