Laboratory Corporation of America (LH) had the highest return between 1989 and 2005 by a US stock, returning 8,911,120%.

ASSET	YEARS	% RETURN
Laboratory Corporation of America (LH)	1989-2005	8,911,120%
UnitedHealth (UNH)	1989-2005	47,139.79%
Perspective Therapeutics (CATX)	1989-2005	41,328.57%
Altria (MO)	1989-2005	26,748.1%
Site Centers (SITC)	1989-2005	24,619.32%
Cisco Systems (CSCO)	1989-2005	22,062.5%
Jack Henry & Associates (JKHY)	1989-2005	21,387.45%
Aegon NV ADR (AEG)	1989-2005	21,239.05%
Best Buy (BBY)	1989-2005	14,021.51%
Bio-Techne (TECH)	1989-2005	12,270.6%
New England Realty Associates (NEN)	1989-2005	11,425.53%
Amgen (AMGN)	1989-2005	11,116.21%
Teva Pharma Industries Ltd ADR (TEVA)	1989-2005	11,068.29%
Charles Schwab (SCHW)	1989-2005	10,862.92%
Weatherford International (WFRD)	1989-2005	10,267.94%
Johnson Controls International (JCI)	1989-2005	10,044.11%
Glacier Bancorp (GBCI)	1989-2005	9,987.16%
Electronic Arts (EA)	1989-2005	9,894.24%
Frontline (FRO)	1989-2005	9,679.96%
Xcel Brands (XELB)	1989-2005	9,399.96%
Qualcomm (QCOM)	1989-2005	8,561.83%
Microsoft (MSFT)	1989-2005	7,934.84%
AllianceBernstein (AB)	1989-2005	7,778.15%
Smith & Wesson Brands (SWBI)	1989-2005	7,755.03%
Expeditors International of Washington (EXPD)	1989-2005	7,576.25%