Royal Gold (RGLD) had the highest return in December 1993 by a US stock, returning 114.1%.

ASSET	MONTH	% RETURN
Royal Gold (RGLD)	December 1993	114.06%
Gencor Industries (GENC)	December 1993	92.31%
Anika Therapeutics (ANIK)	December 1993	88.16%
Cadiz (CDZI)	December 1993	58.62%
Schnitzer Steel Industries (RDUS)	December 1993	57.69%
Encompass Health (EHC)	December 1993	51.88%
Grupo Simec SAB de CV ADR (SIM)	December 1993	50.86%
Kinross Gold (KGC)	December 1993	50%
Culp (CULP)	December 1993	49.46%
Century Casinos (CNTY)	December 1993	47.69%
Ufp Industries (UFPI)	December 1993	41.94%
Park Electrochemical (PKE)	December 1993	40.6%
Vista Gold (VGZ)	December 1993	40%
Educational Development (EDUC)	December 1993	36.7%
Meritage (MTH)	December 1993	36.07%
BBVA Banco Frances SA ADR (BBAR)	December 1993	33.47%
AZZ (AZZ)	December 1993	33.33%
Interlink Electronics (LINK)	December 1993	32.9%
PLDT Inc ADR (PHI)	December 1993	32.57%
Gibraltar Industries (ROCK)	December 1993	31.82%
Sociedad Quimica y Minera de Chile SA ADR B (SQM)	December 1993	29.78%
LivaNova (LIVN)	December 1993	29.49%
Community Trust Bancorp (CTBI)	December 1993	28.25%
Aviat Networks (AVNW)	December 1993	27.96%
Valmont Industries (VMI)	December 1993	27.52%