US stock futures climbed sharply in premarket trading as investors bet on a potential de-escalation in the Iran conflict. The S&P 500 Index futures rose 0.8% by 7:46 a.m. in New York, reflecting optimism that President Trump's upcoming address could signal progress toward ending hostilities.

Trump is scheduled to deliver a prime-time update at 9 p.m. Washington time, with markets closely watching for any indication of diplomatic breakthroughs or military developments. The timing of the address has heightened speculation about potential announcements regarding Iran, with investors positioning for either a risk-on rally or renewed tensions depending on the president's message.

The futures rally suggests traders are pricing in a favorable outcome from the White House address, though uncertainty remains high given the volatile nature of US-Iran relations. Market participants are particularly focused on any signals about sanctions relief, diplomatic negotiations, or military de-escalation that could impact energy prices and regional stability.