Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on December 31, 2019 was $70.85. It was up 1.3% for the day. The latest price is $277.57.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 31 2019
$69.95
$70.86
$69.86
$70.85
100,805,600
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.