India, Aug. 4 -- U.S. stock futures moved higher on Tuesday as investors reacted to strong corporate earnings, a decline in oil prices and optimism over possible progress in US-Iran negotiations. Dow Jones Futures jumped more than 450 points in premarket trading, supported by a strong rally in Caterpillar shares, while technology-focused stocks received a boost from a major gain in Palantir Technologies after its quarterly results. The decline in crude oil prices also lifted market sentiment as investors assessed the possibility of reduced geopolitical risks in the Middle East.

Dow Jones Futures Jump Over 450 Points

Dow Jones Industrial Average Futures climbed 454 points, or 0.8%, ahead of Tuesday's opening bell. The major boost came fr...