Declines in the S&P 500 of 15% or more (1900-2002)
Peak Trough % decline September 1929 June 1932 -84.8 February 1937 April 1942 -56.7 March 2000 March 2003 -49.1 January 1973 October 1974 -48.4 September 1906 November 1907 -37.7 December 1909 August 1921 -37.4 December 1968 May 1970 -35.8 August 1987 December 1987 -33.5 September 1902 October 1903 -29.3 December 1961 June 1962 -27.5 November 1980 August 1982 -27.1 May 1946 June 1949 -25.3 February 1966 October 1966 -20.6 July 1956 December 1957 -20.4 June 1990 October 1990 -19.9 September 1976 March 1978 -19.4 July 1998 August 1998 -19.3 February 1980 March 1980 -17.1