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

Sitio Royalties (STR) has had the highest return between August 31, 2005 and August 31, 2025 by a mid-cap US stock, returning 18,119,900%.

ASSET DATE % RETURN
Sitio Royalties (STR)
8/31/2005 - 8/31/2025
18,119,900%
Inventrust Properties (IVT)
8/31/2005 - 8/31/2025
1,488,400%
Northern Oil & Gas (NOG)
8/31/2005 - 8/31/2025
1,006,053.85%
Weatherford International (WFRD)
8/31/2005 - 8/31/2025
34,465.93%
Nova (NVMI)
8/31/2005 - 8/31/2025
11,500.88%
RadNet (RDNT)
8/31/2005 - 8/31/2025
10,151.43%
Argan (AGX)
8/31/2005 - 8/31/2025
8,273.51%
NewMarket (NEU)
8/31/2005 - 8/31/2025
7,803.66%
Cal-Maine Foods (CALM)
8/31/2005 - 8/31/2025
5,564.46%
Ensign (ENSG)
8/31/2005 - 8/31/2025
4,767.67%
Nexstar Broadcasting (NXST)
8/31/2005 - 8/31/2025
4,652.42%
Descartes Systems (DSGX)
8/31/2005 - 8/31/2025
4,592.49%
Regencell Bioscience (RGC)
8/31/2005 - 8/31/2025
4,349.02%
AAON (AAON)
8/31/2005 - 8/31/2025
4,196.37%
Pegasystems (PEGA)
8/31/2005 - 8/31/2025
3,973.49%
Hawkins (HWKN)
8/31/2005 - 8/31/2025
3,872.04%
Axos Financial (AX)
8/31/2005 - 8/31/2025
3,831.47%
Halozyme Therapeutics (HALO)
8/31/2005 - 8/31/2025
3,770.37%
Credit Acceptance (CACC)
8/31/2005 - 8/31/2025
3,643.49%
HCI (HCI)
8/31/2005 - 8/31/2025
3,634.29%
Stonex (SNEX)
8/31/2005 - 8/31/2025
3,442.28%
Dillard's (DDS)
8/31/2005 - 8/31/2025
3,380.58%
CorVel (CRVL)
8/31/2005 - 8/31/2025
3,336.76%
National Beverage (FIZZ)
8/31/2005 - 8/31/2025
3,097.23%
Sapiens International (SPNS)
8/31/2005 - 8/31/2025
3,015.47%
Mid-cap stocks are treated as having a market cap between $2B and $10B.