Sorry, I couldn't find pricing data for that day. The closing price for Microsoft (MSFT) on December 30, 2011 was $20.48. It was down 0.2% for the day. The latest price is $408.94.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 30 2011
$20.52
$20.61
$20.45
$20.48
27,395,700
Daily pricing data for Microsoft dates back to 3/13/1986, and may be incomplete.