best performing mid cap for last 20 years

Argan (AGX) has had the highest return between January 21, 2006 and January 21, 2026 by a mid-cap US stock, returning 25,331.1%.

ASSETDATE% RETURN
Argan (AGX)
1/21/2006 - 1/21/2026
25,331.09%
Aura Minerals Inc Common Shares (AUGO)
1/21/2006 - 1/21/2026
22,486.09%
RadNet (RDNT)
1/21/2006 - 1/21/2026
11,641.67%
UFP Technologies (UFPT)
1/21/2006 - 1/21/2026
9,471.53%
Vera Therapeutics (VERA)
1/21/2006 - 1/21/2026
5,877.33%
Nexstar Broadcasting (NXST)
1/21/2006 - 1/21/2026
5,869.27%
Axos Financial (AX)
1/21/2006 - 1/21/2026
4,606.84%
AAON (AAON)
1/21/2006 - 1/21/2026
4,447.44%
IES (IESC)
1/21/2006 - 1/21/2026
4,305.94%
Repligen (RGEN)
1/21/2006 - 1/21/2026
3,903.19%
Aris Mining (ARMN)
1/21/2006 - 1/21/2026
3,893.06%
QMMM Holdings Limited Ordinary Shares (QMMM)
1/21/2006 - 1/21/2026
3,880%
Cal-Maine Foods (CALM)
1/21/2006 - 1/21/2026
3,778.01%
NewMarket (NEU)
1/21/2006 - 1/21/2026
3,759.99%
HCI (HCI)
1/21/2006 - 1/21/2026
3,754.6%
Formula Systems 1985 Ltd ADR (FORTY)
1/21/2006 - 1/21/2026
3,631.05%
Halozyme Therapeutics (HALO)
1/21/2006 - 1/21/2026
3,626.46%
CorVel (CRVL)
1/21/2006 - 1/21/2026
3,153.79%
Hawkins (HWKN)
1/21/2006 - 1/21/2026
3,151.97%
Powell Industries (POWL)
1/21/2006 - 1/21/2026
3,111.46%
Camtek (CAMT)
1/21/2006 - 1/21/2026
3,028.64%
NexGen Energy (NXE)
1/21/2006 - 1/21/2026
2,958.1%
Vipshop (VIPS)
1/21/2006 - 1/21/2026
2,948.41%
Astronics (ATRO)
1/21/2006 - 1/21/2026
2,947.25%
Pegasystems (PEGA)
1/21/2006 - 1/21/2026
2,775.65%
Mid-cap stocks are treated as having a market cap between $2B and $10B.