Strait of Hormuz Deadline Spurs Volatile Asian Markets and Oil Jump

Asian markets turned volatile after the Trump administration issued a 72-hour deadline to fully reopen the Strait of Hormuz. The move threatens “complete and unrestricted access,” citing economic security and American energy independence, amid heightened Iran–Western maritime tensions. Equities showed mixed results: Japan’s Nikkei 225 fell 1.2%, South Korea’s KOSPI rose 0.8%, Hong Kong’s Hang Seng was flat, and Singapore’s Straits Times slipped 0.9%. Australia’s ASX 200 gained 0.5% on energy strength. Shipping and logistics faced near-term pressure, while energy-related stocks benefited. Oil markets reacted immediately. Brent futures rose 3.2% to $94.75/bbl and WTI climbed 2.9% to $91.40/bbl. The Strait of Hormuz handles about 21 million barrels of crude per day (roughly 21% of global petroleum consumption), so any disruption can quickly reshape supply expectations. Analysts highlighted regional exposure: Japan (88%) and South Korea (82%) rely heavily on Hormuz transit, making the Strait of Hormuz a key driver of import-cost risk for Asia. Energy shares generally rose, but airlines and parts of transportation faced headwinds from fuel-cost concerns. Diplomatic responses remained cautious, with calls for “diplomatic solutions,” “restraint from all parties,” and contingency planning by oil-importing countries. Traders are likely to watch whether diplomatic progress reduces the probability of further supply disruption—an outcome that could swing both risk sentiment and inflation expectations.