Fermi (FRMI) had the lowest return in March 2026 by a mid-cap US stock, returning -40.2%.

ASSET	MONTH	% RETURN
Fermi (FRMI)	March 2026	-40.16%
First Majestic Silver (AG)	March 2026	-38.74%
Wingstop (WING)	March 2026	-38.21%
AeroVironment (AVAV)	March 2026	-35.6%
NovaGold Resources (NG)	March 2026	-33.48%
StubHub (STUB)	March 2026	-32.98%
Harmony Gold Mining (HMY)	March 2026	-32.5%
Celsius (CELH)	March 2026	-32.12%
Endeavour Silver (EXK)	March 2026	-32.09%
MakeMyTrip (MMYT)	March 2026	-31.78%
ELF Beauty (ELF)	March 2026	-31.57%
Aya Gold & Silver Inc Common Shares (AYA)	March 2026	-30.45%
American Eagle Outfitters (AEO)	March 2026	-29.98%
Pony AI Inc American Depositary Shares (PONY)	March 2026	-29.87%
Hycroft Mining (HYMC)	March 2026	-29.84%
Seabridge Gold (SA)	March 2026	-29.26%
Freshpet (FRPT)	March 2026	-29.12%
TransMedics (TMDX)	March 2026	-28.74%
EquipmentShare Inc Class A Common Stock (EQPT)	March 2026	-28.6%
Fortuna Silver Mines (FSM)	March 2026	-28.3%
Acm Research (ACMR)	March 2026	-27.68%
Herc (HRI)	March 2026	-27.59%
Nexstar Broadcasting (NXST)	March 2026	-27.3%
OceanaGold (OGC)	March 2026	-27.25%
B2Gold (BTG)	March 2026	-27.24%

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