Universal Insurance (UVE) had the highest return between 1991 and 1995 by a US stock, returning 365,100%.

ASSET	YEARS	% RETURN
Universal Insurance (UVE)	1991-1995	365,100%
Johnson Controls International (JCI)	1991-1995	10,483.33%
Heritage Global (HGBL)	1991-1995	9,500%
Suncor Energy (SU)	1991-1995	9,231.13%
Argan (AGX)	1991-1995	7,001.4%
Educational Development (EDUC)	1991-1995	5,695.2%
Jack Henry & Associates (JKHY)	1991-1995	4,883.22%
Cisco Systems (CSCO)	1991-1995	2,566.7%
Riley Exploration Permian (REPX)	1991-1995	2,049.94%
Micron Technology (MU)	1991-1995	1,917.8%
Magna International (MGA)	1991-1995	1,866.88%
Semtech (SMTC)	1991-1995	1,850%
National HealthCare (NHC)	1991-1995	1,841.65%
Cyanotech (CYAN)	1991-1995	1,820%
Royal Gold (RGLD)	1991-1995	1,697.82%
Cato (CATO)	1991-1995	1,604.66%
Oracle (ORCL)	1991-1995	1,514.63%
PTC (PTC)	1991-1995	1,464.68%
Applied Materials (AMAT)	1991-1995	1,364.91%
Lam Research (LRCX)	1991-1995	1,343.54%
LCI Industries (LCII)	1991-1995	1,300.46%
First Bancorp (FBP)	1991-1995	1,249.85%
IDEXX Laboratories (IDXX)	1991-1995	1,191.21%
Bausch Health Companies (BHC)	1991-1995	1,187.54%
Caledonia Mining (CMCL)	1991-1995	1,171.43%