best year for sandp 500 stock

Laboratory Corporation of America (LH) had the best year by a US stock in the S&P 500 (GSPC) in 1990, returning 4,310,060%.

ASSET YEAR % RETURN
Laboratory Corporation of America (LH)
1990
4,310,060%
Qualcomm (QCOM)
1999
2,587.05%
Axon Enterprise (AXON)
2003
1,933.84%
VeriSign (VRSN)
1999
1,165.01%
F5 Networks (FFIV)
1999
1,012.2%
Amazon (AMZN)
1998
970.84%
Biogen (BIIB)
1995
791.39%
First Solar (FSLR)
2007
785.45%
Tesla (TSLA)
2020
731.18%
Nike (NKE)
1986
644.19%
Jack Henry & Associates (JKHY)
1991
572.99%
Enphase Energy (ENPH)
2020
565.42%
Franklin Resources (BEN)
1985
532.51%
Deckers Outdoor (DECK)
2003
519.3%
Lam Research (LRCX)
1999
515.52%
Akamai Technologies (AKAM)
2003
497.78%
CarMax (KMX)
2001
477.51%
Enphase Energy (ENPH)
2019
464.36%
Align Technology (ALGN)
2003
459.66%
Williams Companies (WMB)
2003
434.08%
Moderna (MRNA)
2020
433.83%
Microchip Technology (MCHP)
1993
424.48%
PulteGroup (PHM)
1982
404.08%
US Bancorp (USB)
1985
385.71%
Laboratory Corporation of America (LH)
2000
377.29%