Repro Med Systems (KRMD) had the highest return in March 1988 by a US stock, returning 99.5%.

ASSET	MONTH	% RETURN
Repro Med Systems (KRMD)	March 1988	99.51%
AutoNation (AN)	March 1988	75.01%
Air T (AIRT)	March 1988	74.82%
DSS (DSS)	March 1988	68.53%
Diodes (DIOD)	March 1988	62.49%
Biomerica (BMRA)	March 1988	57.14%
Polaris Industries (PII)	March 1988	56.52%
Mitek Systems (MITK)	March 1988	52.38%
Suncor Energy (SU)	March 1988	40.85%
Security National Financial (SNFCA)	March 1988	39.99%
AstroNova (ALOT)	March 1988	38.89%
RCM Technologies (RCMT)	March 1988	37.54%
Trio-Tech International (TRT)	March 1988	33.34%
Caledonia Mining (CMCL)	March 1988	33.33%
Universal Health Services (UHS)	March 1988	32.34%
Monster Beverage (MNST)	March 1988	32.24%
Fair Isaac (FICO)	March 1988	31.57%
Heron Therapeuti (HRTX)	March 1988	30.95%
Soluna (SLNH)	March 1988	30.77%
Valero Energy (VLO)	March 1988	29.99%
Tejon Ranch (TRC)	March 1988	29.55%
Commercial Metals (CMC)	March 1988	28.82%
CACI International (CACI)	March 1988	28.57%
Hurco Companies (HURC)	March 1988	27.29%
Super X AI Technology Limited - Ordinary Shares (SUPX)	March 1988	27.27%