Dow, S&P 500 close at record on AI-linked earnings, Mideast deal hopes
By Chuck Mikolajczak and Johann M Cherian
Tue August 4, 2026
Optimism over earnings and an end to the war shot all the indexes straight up again for the fourth straight day, today even more impressively than before with high 3-digit gains all around. The Dow reached a new record for the second straight day, the S&P its first new record since July 2nd. Caterpillar provided the biggest boost to the Dow with increasing demand for its equipment in building AI centers. Palantir got an astonishing 29.5% boost and the chip index rose 6.6%. Crude dropped 5% on Qatari confirmations that peace talks were continuing.