Polaris Industries (PII) had the highest return between February 1, 1988 and December 31, 1988 by a US stock, returning 766.3%.

ASSET	DATE	% RETURN
Polaris Industries (PII)	2/1/1988 - 12/31/1988	766.3%
Aegon NV ADR (AEG)	2/1/1988 - 12/31/1988	403.39%
Birks (BGI)	2/1/1988 - 12/31/1988	238.03%
RCM Technologies (RCMT)	2/1/1988 - 12/31/1988	236.92%
Envela (ELA)	2/1/1988 - 12/31/1988	180.28%
Hurco Companies (HURC)	2/1/1988 - 12/31/1988	162.07%
HF Sinclair (DINO)	2/1/1988 - 12/31/1988	153.71%
Badger Meter (BMI)	2/1/1988 - 12/31/1988	145.26%
Lumen Technologies (LUMN)	2/1/1988 - 12/31/1988	126.29%
Vera Therapeutics (VERA)	2/1/1988 - 12/31/1988	124.32%
Dmc Global (BOOM)	2/1/1988 - 12/31/1988	122.25%
Gap (GAP)	2/1/1988 - 12/31/1988	122.13%
Virco Manufacturing (VIRC)	2/1/1988 - 12/31/1988	121.16%
MasTec (MTZ)	2/1/1988 - 12/31/1988	120.59%
Telephone and Data Systems (TDS)	2/1/1988 - 12/31/1988	116.54%
Adobe Systems (ADBE)	2/1/1988 - 12/31/1988	111.27%
Valmont Industries (VMI)	2/1/1988 - 12/31/1988	111.11%
Telefonaktiebolaget LM Ericsson B ADR (ERIC)	2/1/1988 - 12/31/1988	110.96%
Dycom Industries (DY)	2/1/1988 - 12/31/1988	110.26%
Harley-Davidson (HOG)	2/1/1988 - 12/31/1988	109.31%
Quanex Building Products (NX)	2/1/1988 - 12/31/1988	107.63%
Johnson Controls International (JCI)	2/1/1988 - 12/31/1988	104.43%
Powell Industries (POWL)	2/1/1988 - 12/31/1988	100%
John Wiley & Sons B (WLYB)	2/1/1988 - 12/31/1988	97.52%
Helen of Troy (HELE)	2/1/1988 - 12/31/1988	95.32%