Sorry, I couldn't find pricing data for that day. The closing price for the Dow Jones Industrial Average (DJI) on February 15, 1980 was $884.98. It was down 0.9% for the day. The latest price is $44,946.12.
DATE
OPEN
HIGH
LOW
CLOSE
February 15 1980
$892.92
$892.92
$875.09
$884.98
Daily pricing data for the Dow Jones Industrial Average dates back to 1/2/1950, and may be incomplete.