Asian stock markets surged Monday as diplomatic signals from Washington raised hopes that a negotiated end to the Iran conflict could reopen critical energy supply routes and ease pressure on oil-dependent economies, particularly Japan, which imports nearly all its petroleum through the threatened waterway.
Japan's benchmark Nikkei 225 jumped 3.1% in morning trading to 65,321.56, while Australia's S&P/ASX 200 added 0.4% to 8,692.70 and the Shanghai Composite edged up 0.4% to 4,127.53. Trading was closed in South Korea and Hong Kong for holidays marking Buddha's birthday, and trading will be closed in the U.S. on Monday for Memorial Day.
Diplomatic Progress and Energy Security
U.S. President Donald Trump said negotiations with Iran were "proceeding in an orderly and constructive manner." Regional officials told The Associated Press on Sunday that the United States is close to reaching a deal with Iran that would end the war, reopen the Strait of Hormuz and see Iran give up its stockpile of highly enriched uranium.
Reopening the Strait of Hormuz will help decide the direction of oil prices. The closure has prevented oil tankers from exiting the Persian Gulf and delivering crude to customers worldwide. Japan imports almost all its oil, most of it through the strait, making the island nation particularly vulnerable to supply disruptions that have driven energy costs higher for households and businesses.
Oil Prices Tumble on Supply Expectations
Early Monday, benchmark U.S. crude was down $4.35 at $92.25 a barrel. Brent crude, the international standard, sank $4.16 to $99.38 a barrel. Analyst Stephen Innes said, "Markets are rapidly transitioning from pricing geopolitical fear toward pricing a potential peace dividend as Hormuz reopening expectations pressure oil and the dollar lower."
The sharp decline in oil prices offers potential relief for consumers and industries that have faced elevated energy costs since the conflict began. In currency trading, the U.S. dollar declined to 158.80 Japanese yen from 159.16 yen. The euro cost $1.1641, up from $1.1605.
Wall Street's Recent Momentum
Friday on Wall Street, stocks finished their eighth straight winning week, the best such streak since 2023, even though a survey showed U.S. consumers are feeling even worse about the economy. The S&P 500 added 0.4% and pulled closer to its all-time high set in the middle of last week. The Dow Jones Industrial Average rose 0.6%, and the Nasdaq composite gained 0.2%.
Recent earnings reports from U.S. companies that topped analysts' expectations also helped markets. However, worries about inflation have pushed bond yields higher worldwide. The yield on the 10-year Treasury edged down to 4.56% Friday from 4.57% late Thursday, but it remained well above its 3.97% level from before the war, reflecting persistent concerns about the economic impact of prolonged conflict and supply disruptions.
Why This Matters:
The potential reopening of the Strait of Hormuz represents more than a market opportunity—it directly affects the economic security of working families across Asia and beyond who have borne the burden of elevated energy costs. Japan's near-total dependence on imported oil makes its economy particularly vulnerable to supply shocks, with higher fuel prices cascading through transportation, manufacturing, and household budgets. A diplomatic resolution that restores energy flows could ease inflationary pressures that have strained household finances, though bond markets suggest investors remain cautious about whether relief will reach ordinary consumers. The contrast between Wall Street's eighth straight winning week and deteriorating consumer sentiment underscores the gap between financial market performance and the lived economic reality of families still grappling with higher costs of living.