compound annual return of sandp 500 between 1930-1940

The S&P 500 (GSPC) returned -50% between 1930 and 1940.

DATEOPENHIGHLOWCLOSE
December 1940
$10.62
$10.69
$10.38
$10.58
November 1940
$11.08
$11.39
$10.56
$10.57
October 1940
$10.81
$11.08
$10.47
$11.08
September 1940
$10.56
$10.93
$10.30
$10.66
August 1940
$10.26
$10.50
$9.84
$10.50
July 1940
$9.87
$10.33
$9.85
$10.29
June 1940
$9.11
$10.10
$8.99
$9.98
May 1940
$12.03
$12.12
$9.14
$9.27
April 1940
$12.21
$12.59
$12.04
$12.19
March 1940
$12.06
$12.27
$12.00
$12.18
February 1940
$12.05
$12.37
$12.04
$12.13
January 1940
$12.63
$12.77
$12.05
$12.05
December 1939
$12.29
$12.46
$12.19
$12.46
November 1939
$12.82
$12.95
$12.20
$12.20
October 1939
$12.88
$13.21
$12.73
$12.83
September 1939
$11.30
$13.17
$11.30
$12.79
August 1939
$12.04
$12.16
$10.86
$11.18
July 1939
$11.00
$12.18
$11.00
$12.04
June 1939
$11.42
$11.80
$10.79
$10.86
May 1939
$10.86
$11.65
$10.86
$11.60
April 1939
$11.26
$11.26
$10.42
$10.93
March 1939
$12.70
$13.10
$10.98
$10.98
February 1939
$12.12
$12.70
$12.12
$12.70
January 1939
$13.08
$13.23
$11.53
$12.30
December 1938
$12.61
$13.14
$12.32
$13.14