Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on November 18, 2011 was $11.23. It was down 1.1% for the day. The latest price is $263.93.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
November 18 2011
$11.35
$11.39
$11.23
$11.23
371,938,000
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.