Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on September 11, 2020 was $109.21. It was down 2.2% for the day. The latest price is $214.50.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
September 11 2020
$111.72
$112.36
$107.26
$109.21
180,860,300
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.