Stock Markets April 6, 2026

Asian markets advance as Nikkei and KOSPI rally on reports of U.S.-Iran ceasefire talks

Thin holiday turnover as investors respond to ceasefire talk and oil price movements

By Sofia Navarro
Asian markets advance as Nikkei and KOSPI rally on reports of U.S.-Iran ceasefire talks

Japanese and South Korean equity benchmarks rose sharply during muted holiday trading after reports that the United States, Iran and regional intermediaries are discussing terms for a potential 45-day ceasefire. Trading volumes were limited as major Asian markets were closed for holidays. Oil prices rose again but cooled somewhat on the same reports, leaving import-dependent Asian economies exposed to higher energy costs.

Key Points

  • Japan’s Nikkei 225 rose 1.4% and the TOPIX climbed 0.7%; South Korea’s KOSPI advanced 1.1% during thin holiday trading.
  • An Axios report said the United States, Iran and regional mediators - including Pakistan, Egypt and Turkey - were discussing terms for a potential 45-day ceasefire, though chances of an agreement within 48 hours remained uncertain.
  • Oil prices increased again after last week’s surge, a development that could raise import costs for Asian economies dependent on energy imports and affect market sentiment.

Equity markets in Japan and South Korea moved higher on Monday amid subdued holiday turnover after media reports indicated negotiators were discussing terms for a temporary ceasefire between the United States and Iran.

The Nikkei 225 climbed 1.4% while Japan’s broader TOPIX index increased 0.7%. In South Korea, the KOSPI rose 1.1%. Market liquidity was lighter than usual because trading in Hong Kong, mainland China and Australia was suspended for public holidays.

Sentiment improved following an Axios report that said the United States, Iran and regional intermediaries were exploring details of a possible 45-day ceasefire. The report identified Pakistani, Egyptian and Turkish intermediaries as involved in the discussions, while also noting that odds of securing even a partial agreement within the next 48 hours remained uncertain.

In Asian trading, U.S. stock futures were largely unchanged on Monday, having pared earlier losses as traders reacted to the possibility of a ceasefire.

The diplomatic developments came against a backdrop of a separate escalation in rhetoric from the White House. U.S. President Donald Trump said Iran had until Tuesday evening to reopen the Strait of Hormuz or face attacks on critical infrastructure. Trump specified the deadline would expire at 8 p.m. Eastern Time on Tuesday and warned that Iranian power plants and bridges could become targets if shipping through the strait was not restored.

Oil prices rose again in Asian trading after sharp gains late last week, but some of that upward momentum was trimmed following publication of the ceasefire discussions. The article noted that higher crude prices threaten to lift import costs for Asian economies that are heavily dependent on energy imports.

Elsewhere in the region, Singapore’s Straits Times Index was up 0.3%, while India’s Nifty 50 bucked the regional advance and slipped 0.4%.


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With Asian trading thinner because of holidays and diplomatic developments injecting fresh uncertainty, market participants will likely monitor both any progress in mediation efforts and oil-market moves closely in the coming sessions.

Risks

  • The ceasefire discussions were reported to have uncertain odds of delivering even a partial deal within 48 hours, leaving diplomatic outcomes unclear - this uncertainty can affect regional equity and commodity markets.
  • A U.S. deadline for Iran to reopen the Strait of Hormuz raises the prospect of escalation; statements warning that power plants and bridges could be targeted if shipping is not restored introduce potential geopolitical risk to energy and transport sectors.
  • Rising crude prices threaten to increase import bills for energy-dependent Asian economies, which could pressure trade balances and inflation-sensitive sectors.

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