Costco Wholesale (COST) had the lowest return between 1980 and 1990 by a US stock in the S&P 500 (GSPC), returning -100%.

ASSET	YEARS	% RETURN
Costco Wholesale (COST)	1980-1990	-99.97%
NVR (NVR)	1980-1990	-94.8%
Danaher (DHR)	1980-1990	-85.11%
Advanced Micro Devices (AMD)	1980-1990	-83.95%
Cooper Companies (COO)	1980-1990	-75.67%
Monster Beverage (MNST)	1980-1990	-68.29%
Ross Stores (ROST)	1980-1990	-66.43%
Constellation Brands Inc Class A (STZ)	1980-1990	-66.18%
Micron Technology (MU)	1980-1990	-60.68%
Skyworks Solutions (SWKS)	1980-1990	-57.28%
Jack Henry & Associates (JKHY)	1980-1990	-56.55%
Hologic (HOLX)	1980-1990	-52.94%
Lam Research (LRCX)	1980-1990	-51.27%
Fair Isaac (FICO)	1980-1990	-47.54%
APA (APA)	1980-1990	-42.93%
L3Harris Technologies (LHX)	1980-1990	-36.02%
Valero Energy (VLO)	1980-1990	-34.61%
Charles Schwab (SCHW)	1980-1990	-29.93%
IDEX (IEX)	1980-1990	-27.35%
Schlumberger (SLB)	1980-1990	-25.24%
Honeywell International (HON)	1980-1990	-24.98%
TJX Companies (TJX)	1980-1990	-23.8%
Teradyne (TER)	1980-1990	-20.85%
MGM Resorts International (MGM)	1980-1990	-15.22%
FedEx (FDX)	1980-1990	-12.3%