Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on December 31, 2015 was $23.81. It was down 1.6% for the day. The latest price is $244.60.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 31 2015
$24.21
$24.21
$23.71
$23.81
163,649,200
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.