Sorry, I couldn't find pricing data for that day. The closing price for Microsoft (MSFT) on December 31, 2019 was $150.84. It was up 0.6% for the day. The latest price is $451.99.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 31 2019
$149.95
$150.90
$149.64
$150.84
18,369,400
Daily pricing data for Microsoft dates back to 3/13/1986, and may be incomplete.