Sorry, I couldn't find pricing data for that day. The closing price for Microsoft (MSFT) on December 31, 2003 was $16.99. It was down 0.2% for the day. The latest price is $408.94.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 31 2003
$17.03
$17.11
$16.91
$16.99
42,198,900
Daily pricing data for Microsoft dates back to 3/13/1986, and may be incomplete.