The closing price for the S&P 500 (GSPC) on August 12, 1981 was $133.40. It was down 0.3% for the day (down 0.3% from previous close). The latest price is $6,723.29.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
August 12 1981
$133.85
$135.18
$132.73
$133.40
53,650,000
Daily pricing data for the S&P 500 dates back to 12/30/1927, and may be incomplete.