what is the best returning small cap stock in the last 20 years

Amerant Bancorp (AMTB) has had the highest return between August 29, 2005 and August 29, 2025 by a small-cap US stock, returning 7,166,566.7%.

ASSET DATE % RETURN
Amerant Bancorp (AMTB)
8/29/2005 - 8/29/2025
7,166,566.67%
Integra Resources (ITRG)
8/29/2005 - 8/29/2025
431,900%
NioCorp Developments Ltd Common Stock (NB)
8/29/2005 - 8/29/2025
269,311.76%
Universal Insurance (UVE)
8/29/2005 - 8/29/2025
120,197.03%
Immatics (IMTX)
8/29/2005 - 8/29/2025
105,500%
Metalla Royalty & Streaming (MTA)
8/29/2005 - 8/29/2025
26,112.12%
LifeMD (LFMD)
8/29/2005 - 8/29/2025
7,975%
Par Pacific (PARR)
8/29/2005 - 8/29/2025
5,545%
UFP Technologies (UFPT)
8/29/2005 - 8/29/2025
5,331.62%
Site Centers (SITC)
8/29/2005 - 8/29/2025
3,517.27%
Aris Mining (ARMN)
8/29/2005 - 8/29/2025
3,371.63%
Vera Therapeutics (VERA)
8/29/2005 - 8/29/2025
3,084.29%
Climb Global Solutions (CLMB)
8/29/2005 - 8/29/2025
2,894.1%
Virtus Investment Partners (VRTS)
8/29/2005 - 8/29/2025
2,824.47%
Winmark (WINA)
8/29/2005 - 8/29/2025
2,823.42%
Know Labs (KNW)
8/29/2005 - 8/29/2025
2,495.42%
Formula Systems 1985 Ltd ADR (FORTY)
8/29/2005 - 8/29/2025
2,473.34%
ePlus (PLUS)
8/29/2005 - 8/29/2025
2,351.78%
Clearfield (CLFD)
8/29/2005 - 8/29/2025
2,247.52%
MiMedx (MDXG)
8/29/2005 - 8/29/2025
2,222.12%
eXp World (EXPI)
8/29/2005 - 8/29/2025
2,174.08%
Nathans Famous (NATH)
8/29/2005 - 8/29/2025
2,157.03%
EVI Industries (EVI)
8/29/2005 - 8/29/2025
2,100.29%
Magic Software Enterprises (MGIC)
8/29/2005 - 8/29/2025
2,081.51%
Xpel (XPEL)
8/29/2005 - 8/29/2025
2,048.86%
Small-cap stocks are treated as having a market cap between $300M and $2B.