Japanese equities advanced at open, with investor sentiment toward AI-related stocks remaining positive despite the absence of a peace agreement between the U.S. and Iran.
The Nikkei 225 added 200.8 points, or 0.3%, to reach 62,618.72 at the opening bell.
Tensions mounted in the Middle East as the fragile ceasefire appeared to falter.
Trump characterized Iran's response to his peace proposal as "a piece of garbage," stating he "didn't even finish reading it."
Morgan Stanley stated on Monday that the oil market faces a "race against time," warning that prices could rise significantly if the Strait of Hormuz remains closed through June. Brent was trading at $104 per barrel.