India, Aug. 4 -- US stock futures moved higher in premarket trading on Tuesday as investors welcomed stronger-than-expected quarterly earnings from major companies, while easing oil prices added to the positive sentiment. Optimism surrounding potential diplomatic progress between the United States and Iran also helped improve risk appetite across global markets.

Dow Jones Industrial Average futures climbed sharply, while technology stocks led gains after impressive earnings from Palantir Technologies. Investors are also preparing for fresh US economic data and another busy day of corporate earnings.

Dow Jones Futures Jump

Dow Jones Industrial Average futures rose 454 points, or 0.8%, supported by a nearly 9% premarket rally in Caterpil...