Sorry, I couldn't find pricing data for that day. The closing price for the S&P 500 (GSPC) on April 18, 1997 was $766.34. It was up 0.6% for the day. The latest price is $7,230.12.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
April 18 1997 | $761.77 | $767.93 | $761.77 | $766.34 | 468,940,000 |
Daily pricing data for the S&P 500 dates back to 12/30/1927, and may be incomplete.