Sorry, I couldn't find pricing data for that day. The closing price for the S&P 500 (GSPC) on July 6, 2018 was $2,759.82. It was up 0.8% for the day. The latest price is $7,674.11.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
July 06 2018 | $2,737.68 | $2,764.41 | $2,733.52 | $2,759.82 | 2,590,250,000 |
Daily pricing data for the S&P 500 dates back to 12/30/1927, and may be incomplete.