Trump Threatens to Put Iran in 'Stone Ages,' Dampens Ceasefire Hopes

U.S. President Donald Trump’s prime‑time address on April 1 signalled a possible escalation in the campaign against Iran, undermining hopes for a swift ceasefire and triggering selloffs in Asia‑Pacific equity markets while energy prices jumped. Investors reacted to the president’s stark language about crippling Iran’s capacity.

During the speech Trump said U.S. forces would hit Iran “extremely hard” over the next “two to three weeks” and used the phrase that Tehran would be brought “back to the Stone Ages,” comments later included in published transcripts. He also referenced options that could target Iran’s energy infrastructure and did not provide a clear timetable for reopening the Strait of Hormuz, leaving markets with fresh supply‑risk concerns.

Market moves were immediate: MSCI indexes for the region fell, Japan’s Nikkei 225 opened notably lower, and Brent and WTI crude rose by roughly 4–5% intraday as traders priced in elevated geopolitical risk. U.S. equity futures also softened during the address, while volatility indicators climbed and safe‑haven flows increased for certain assets. Analysts said the speech disappointed investors hoping for a de‑escalation plan.

The episode comes at a sensitive juncture for global energy markets. Disruptions to traffic through the Strait of Hormuz would have outsized effects on worldwide supply, particularly for Asian importers, and higher oil prices could act as an additional upward force on global inflation and influence central bank policy calculus. Market participants are therefore treating geopolitical developments as a continuing driver of commodity and cross‑asset volatility.

Strategists expect elevated short‑term volatility and say outcomes will hinge on whether the rhetoric is followed by further military action or diplomatic engagement. Portfolio managers will watch naval movements, on‑the‑ground reports on oil infrastructure and any diplomatic outreach that could revive ceasefire talks. In the absence of de‑escalation signals, energy risk premia and hedging demand are likely to remain elevated.