Sorry, I couldn't find pricing data for that day. The closing price for the Dow Jones Industrial Average (DJI) on October 18, 1963 was $750.60. The latest price is $46,982.29.
DATE
OPEN
HIGH
LOW
CLOSE
October 18 1963
$750.77
$755.36
$747.94
$750.60
Daily pricing data for the Dow Jones Industrial Average dates back to 1/2/1950, and may be incomplete.