Asian Markets Mixed as US-Iran Ceasefire Holds Amid Persistent Oil Supply Worries

South Korea's Kospi dropped about 2.5%, pressured by memory-chip makers Samsung Electronics (down ~6.5%) and SK Hynix (down ~4.8%), highlighting ongoing tech-driven volatility despite mixed regional sentiment.
Oil markets showed gains with front-month WTI at around $69.97 a barrel (up 1.1%) and Brent at about $72.40 a barrel (up 0.6%), reflecting concerns over potential disruptions in the Hormuz Strait.
Oman announced an alternative shipping route hugging its shoreline in coordination with the International Maritime Organization, a move Iran criticized as it seeks to control passage through the Strait of Hormuz, raising tensions around the waterway.
U.S. Central Command said it had targeted 10 Iranian military sites amid ongoing exchanges, underscoring continued escalation even as officials discuss halting hostilities and resuming talks.
Asian markets turned mixed and oil climbed on Monday after the United States and Iran agreed to halt military strikes and resume talks, following one of the most intense flare-ups of the 2025–2026 West Asia War. A new round of diplomacy is set for Tuesday in Doha, Qatar, but investors remain skeptical that a durable peace is close. NPR Illinois reported that President Trump confirmed high-level talks would resume there, with Iran's frozen assets — $6 billion of $12 billion held in Qatar — potentially released as part of the deal.
The fragile mood follows a weekend of sharp escalation. U.S. Central Command struck 10 Iranian military sites, including drone storage facilities on Qeshm Island. Iran then hit the U.S. Fifth Fleet base in Bahrain and an airbase in Kuwait. By Sunday morning, both sides signaled a halt to what officials called "kinetic activity."
South Korea's Kospi index fell about 2.5% to 8,255 points, dragged down by the country's biggest memory-chip makers. Samsung Electronics dropped roughly 6.5% and SK Hynix fell about 4.8%, according to ABS-CBN and TradingKey. The selloff reflected investor fear that a renewed flare-up could disrupt global supply chains tied to energy and shipping costs.
Elsewhere in Asia, moves were smaller and uneven. Technology stocks in some markets held gains tied to AI demand, but the threat of another breakdown in the ceasefire kept broader sentiment cautious. Analysts warned that any collapse of the Doha talks could trigger a sharp correction in tech valuations globally.
Oil prices pushed higher despite the ceasefire news. Front-month WTI crude rose about 1.1% to roughly $69.97 a barrel. Brent crude gained about 0.6% to around $72.40 a barrel, according to Middle East Monitor. Traders priced back in what analysts call a "war premium" — extra cost built into prices because of the risk of supply disruptions.
Fabien Yip, an analyst at IG, said oil's rebound showed the market had "run too quickly on ceasefire optimism," according to Al Jazeera. Analysts at ING cautioned that even if fighting stops, tanker backlogs and possible mines in the Strait of Hormuz's central channel could delay a real recovery in flows for weeks or months, per Mitrade.
At the center of last week's violence was a new coastal shipping lane hugging Oman's shoreline. Several oil tankers used the route on June 25 to bypass the Strait of Hormuz's main channel, which Iran has mined and patrols heavily. The route was set up with help from the International Maritime Organization. Iran's Revolutionary Guard immediately warned all ships to use only Tehran-approved paths, according to Transport Topics.
Iran then struck the Singapore-flagged cargo ship *Ever Lovely* on June 26, and the oil tanker *M/T Kiku* — carrying two million barrels of crude — on June 27, according to Al Jazeera and Times of Israel. The Institute for the Study of War said Iran's attacks on Bahrain and Kuwait were a direct signal to Gulf states: back the Omani route and face military consequences, per ISW.
President Trump has kept his language blunt. He posted on Truth Social that "there may come a point when we are no longer able to be reasonable," adding that "the Islamic Republic of Iran will no longer exist" if that point is reached, according to Times of Israel. CENTCOM Commander General Michael Kurilla said U.S. forces remain "vigilant, lethal, and ready."
Iran's Deputy Foreign Minister Kazem Gharibabadi pushed back on the timeline for technical meetings, saying they would only happen "when the conditions are met" — a reference to confirming the transfer of frozen assets, according to The Hindu. The gap between Washington's urgency and Tehran's conditions makes Tuesday's Doha session a high-stakes test of whether the ceasefire can hold.
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