Sorry, I couldn't find pricing data for that day. The closing price for the S&P 500 (GSPC) on September 10, 2001 was $1,092.54. It was up 0.6% for the day. The latest price is $7,753.40.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
September 10 2001 | $1,085.78 | $1,096.94 | $1,073.15 | $1,092.54 | 1,276,600,000 |
Daily pricing data for the S&P 500 dates back to 12/30/1927, and may be incomplete.