S&P 500 (since 1978)

Note: data from Wall Street Journal


Daily close (through 1/10/2024)


Year-End Close (final trading day of year)


Percentage Change for entire year


Average rate of percentage change was 10.34% for the 45 year (1979-2023) period



Most extreme single-session changes:


Gainers:
10/13/2008 11.58%
10/28/2008 10.79%
3/24/2020 9.38%
3/13/2020 9.29%
10/21/1987 9.10%
3/23/2009 7.08%
Losers:
10/19/1987 -20.47%
3/16/2020 -11.98%
3/12/2020 -9.51%
10/15/2008 -9.03%
12/1/2008 -8.93%
9/29/2008 -8.79%