Sorry, I couldn't find pricing data for that day. The closing price for the Dow Jones Industrial Average (DJI) on January 18, 1991 was $2,646.78. It was up 0.9% for the day. The latest price is $45,479.60.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
January 18 1991
$2,622.28
$2,652.72
$2,613.61
$2,646.78
45,627,700
Daily pricing data for the Dow Jones Industrial Average dates back to 1/2/1950, and may be incomplete.