The closing price for Walmart (WMT) on September 21, 2001 was $9.61. It was up 1.2% for the day (down 1.4% from previous close). The latest price is $104.29.
The closing price for Pfizer (PFE) on September 21, 2001 was $13.54. It was up 5.3% for the day (down 2% from previous close). The latest price is $24.04.