Sorry, I couldn't find pricing data for that day. The closing price for Tesla (TSLA) on December 31, 2015 was $16.00. It was up 0.6% for the day. The latest price is $435.55.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 31 2015
$15.90
$16.23
$15.89
$16.00
40,725,612
Daily pricing data for Tesla dates back to 6/29/2010, and may be incomplete.