Sorry, I couldn't find pricing data for that day. The closing price for the Dow Jones Industrial Average (DJI) on December 29, 2017 was $24,719.22. It was down 0.5% for the day. The latest price is $44,683.38.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 29 2017
$24,849.63
$24,871.66
$24,719.22
$24,719.22
270,762,444
Daily pricing data for the Dow Jones Industrial Average dates back to 1/2/1950, and may be incomplete.