RCM Technologies (RCMT) had the highest return in March 1985 by a US stock, returning 92%.

ASSET	MONTH	% RETURN
RCM Technologies (RCMT)	March 1985	91.98%
CECO Environmental (CECO)	March 1985	76.19%
Avino Silver & Gold Mines (ASM)	March 1985	55.95%
Perspective Therapeutics (CATX)	March 1985	44.44%
McEwen Mining (MUX)	March 1985	44.23%
HF Sinclair (DINO)	March 1985	43%
Gencor Industries (GENC)	March 1985	40.63%
Caledonia Mining (CMCL)	March 1985	38.05%
Rave Restaurant (RAVE)	March 1985	37.4%
UNITIL (UTL)	March 1985	33.66%
US Energy (USEG)	March 1985	32.73%
Mount Logan Capital Inc Common Stock (MLCI)	March 1985	32%
Agnico Eagle Mines (AEM)	March 1985	29.33%
Valley National Bancorp (VLY)	March 1985	28.35%
Dillard's (DDS)	March 1985	28.31%
Nabors Industries (NBR)	March 1985	27.27%
Oil-Dri Corporation Of America (ODC)	March 1985	26.32%
NAPCO Security Technologies (NSSC)	March 1985	24.71%
American States Water (AWR)	March 1985	22.83%
Liveramp (RAMP)	March 1985	22.4%
Helmerich and Payne (HP)	March 1985	22.36%
Hawkins (HWKN)	March 1985	22.23%
Biomerica (BMRA)	March 1985	22.22%
Neonode (NEON)	March 1985	21.9%
Berkshire Hathaway (BRK.A)	March 1985	21.81%