s and p 500 total return indices monthly adjusted closing price for 1966

The average closing price for the S&P 500 (GSPC) in 1966 was $85.18. It was down 12.9% for the year. The latest price is $5,638.77.

DATE OPEN HIGH LOW CLOSE VOLUME
December 1966
$80.08
$83.88
$79.49
$80.33
165,070,000
November 1966
$80.81
$83.01
$78.89
$80.45
145,780,000
October 1966
$74.90
$80.91
$72.28
$80.20
146,210,000
September 1966
$77.70
$80.81
$75.03
$76.56
120,030,000
August 1966
$82.31
$84.70
$73.91
$77.10
162,430,000
July 1966
$85.61
$88.19
$83.05
$83.60
119,810,000
June 1966
$86.10
$87.74
$83.75
$84.74
140,450,000
May 1966
$90.90
$91.75
$83.18
$86.13
171,290,000
April 1966
$89.94
$93.02
$88.96
$91.06
186,160,000
March 1966
$90.06
$91.65
$86.69
$89.23
191,360,000
February 1966
$92.16
$94.72
$90.43
$91.22
165,790,000
January 1966
$92.18
$94.64
$91.63
$92.88
182,910,000
Daily pricing data for the S&P 500 dates back to 12/30/1927, and may be incomplete.