Asian shares soar after oil price decline in response to the Iran ceasefire

Asian markets surged Wednesday morning as a newly announced two-week ceasefire between the United States and Iran triggered a dramatic plunge in oil prices, relieving pressure on global markets that have been volatile since hostilities began in late February.

The agreement includes the reopening of the strategic Strait of Hormuz, a crucial maritime chokepoint through which approximately 20% of the world’s oil supply passes daily. The strait’s effective blockade during the conflict had sent energy prices soaring and rattled global markets.

Japan’s benchmark Nikkei 225 led the regional rally with a 5.0% gain to 56,106.18. South Korea’s Kospi posted an even more dramatic increase of 5.9% to 5,819.97, while Australia’s S&P/ASX 200 jumped 2.6% to 8,952.30. Chinese markets also participated in the upswing, with Hong Kong’s Hang Seng rising 2.6% to 25,767.42 and the Shanghai Composite adding 1.7% to reach 3,957.55.

The ceasefire announcement sent oil prices plummeting. Benchmark U.S. crude sank $16.84 to $96.11 a barrel, while Brent crude, the international standard, dropped $14.51 to $94.76 a barrel. These steep declines directly reflect the expected restoration of normal shipping through the Strait of Hormuz, particularly significant for resource-dependent economies like Japan.

“Yet the mood remains one of cautious optimism rather than outright celebration,” said Tim Waterer, chief market analyst at KCM Trade. “The ceasefire is only two weeks long, and markets will be watching closely to see whether shipping through the Strait of Hormuz normalizes as promised and whether the fragile truce can pave the way for a more durable peace agreement.”

The breakthrough came after President Trump announced late Tuesday he would temporarily suspend threatened attacks on Iranian civilian infrastructure, including bridges and power plants. In response, Iran’s foreign minister stated that passage through the strait would be permitted for the next two weeks under Iranian military management.

The timing proved critical, as Trump had established an 8 p.m. Eastern time deadline for Iran to open the waterway. Diplomatic efforts intensified in the final hours, with Pakistan’s prime minister urging Trump to extend his ultimatum by two weeks while simultaneously pressing Iran to reopen the strait.

The last-minute diplomatic resolution provided relief to Wall Street, where markets rallied in late trading. The S&P 500 erased earlier losses to finish with a modest 0.1% gain. The tech-heavy Nasdaq composite also added 0.1%, while the Dow Jones Industrial Average dipped slightly by 0.2%.

Bond markets similarly reflected the easing of geopolitical tensions, with the yield on the 10-year Treasury falling to 4.24% from 4.30% earlier Tuesday, indicating investors moving back toward government securities after fleeing to safer assets during the conflict’s escalation.

Currency traders also responded to the changing dynamics, with the U.S. dollar weakening to 158.54 Japanese yen from 159.52 yen. The euro strengthened against the dollar, rising to $1.1671 from $1.1597.

The temporary nature of the agreement keeps market participants vigilant, however. Analysts caution that sustainable recovery depends on whether the ceasefire holds and evolves into a more permanent resolution. The two-week window provides breathing room but leaves significant uncertainty about longer-term regional stability.

Energy markets will likely remain sensitive to developments in the Persian Gulf, with traders closely monitoring shipping volumes through the strait as a key indicator of whether the agreement is being implemented effectively. For oil-importing nations across Asia, the resumption of normal shipping operations represents a critical step toward economic stabilization after weeks of price volatility.