Caledonia Mining (CMCL) had the highest return between 1980 and 1985 by a US stock, returning 379,744.2%.

ASSET	YEARS	% RETURN
Caledonia Mining (CMCL)	1980-1985	379,744.23%
MDU Resources (MDU)	1980-1985	8,525%
Service Corporation International (SCI)	1980-1985	1,685.33%
Walmart (WMT)	1980-1985	1,500%
Loews (L)	1980-1985	1,482.8%
Gap (GAP)	1980-1985	1,468.13%
Jefferies Financial (JEF)	1980-1985	1,296.73%
Church & Dwight (CHD)	1980-1985	960.19%
Altria (MO)	1980-1985	900%
La-Z-Boy (LZB)	1980-1985	875.33%
PulteGroup (PHM)	1980-1985	831.24%
Home Depot (HD)	1980-1985	814.04%
GlaxoSmithKline PLC ADR (GSK)	1980-1985	784.79%
SunLink Health Systems (SSY)	1980-1985	776.4%
Essential Utilities (WTRG)	1980-1985	754.07%
Berkshire Hathaway (BRK.A)	1980-1985	751.72%
Franklin Resources (BEN)	1980-1985	715.75%
Tootsie Roll Industries (TR)	1980-1985	706.11%
Flowers Foods (FLO)	1980-1985	671.43%
ConAgra Foods (CAG)	1980-1985	665%
Allient (ALNT)	1980-1985	613.75%
Seneca Foods Corp B (SENEB)	1980-1985	611.91%
McDonald’s (MCD)	1980-1985	585.68%
Associated Banc (ASB)	1980-1985	566.2%
Espey Mfg & Electronics (ESP)	1980-1985	555.29%