Sorry, I couldn't find pricing data for that day. The closing price for Dow (DOW) on August 21, 2020 was $32.77. It was up 0.2% for the day. The latest price is $24.29.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
August 21 2020
$32.70
$32.98
$32.51
$32.77
2,511,600
Daily pricing data for Dow dates back to 3/20/2019, and may be incomplete.