Sorry, I couldn't find pricing data for that day. The closing price for Walmart (WMT) on September 10, 2001 was $9.93. It was up 1.6% for the day. The latest price is $101.18.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
September 10 2001
$9.77
$10.09
$9.67
$9.93
20,180,700
Daily pricing data for Walmart dates back to 8/25/1972, and may be incomplete.