Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on January 20, 2006 was $2.28. It was down 4% for the day. The latest price is $274.21.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
January 20 2006
$2.38
$2.40
$2.27
$2.28
1,134,758,800
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.