Dollar Firms vs Yuan as Hormuz Hopes Fade

The dollar edged higher against the offshore Chinese yuan on Tuesday, gaining 0.01% to 6.784, as renewed U.S. military strikes on Iranian targets dampened optimism for a swift reopening of the Strait of Hormuz. The greenback's safe-haven appeal resurged after hopes of a ceasefire faded, reversing Monday's risk-on sentiment that had pushed oil prices below $100 a barrel.

Market Sentiment Shifts on New Hostilities

After a weekend of tentative optimism, markets opened Tuesday with fresh uncertainty after the U.S. conducted what it called defensive strikes in southern Iran. Iran accused Washington of violating a ceasefire, while U.S. Secretary of State Marco Rubio tempered expectations, stating that negotiating a deal could take days. This whipsaw in geopolitical developments has left investors cautious, boosting demand for the dollar and pressuring risk-sensitive currencies like the yuan.

Marc Chandler, chief market strategist at Bannockburn Global Forex, noted the abrupt shift: We go home over the weekend, thinking we're close to a ceasefire and now there are new hostilities. So I think the market is waiting for developments. The dollar index rose 0.135% to 99.15, recovering from a 0.3% decline on Monday.

Oil Volatility and Supply Concerns

Oil prices clawed back some losses on Tuesday, with Brent crude futures jumping 3.9% to $98.87 a barrel after plunging 7% on Monday. The reversal came as the U.S. strikes reignited fears of prolonged disruption to tanker traffic through the Strait of Hormuz, a critical chokepoint for global oil shipments. Veteran commodities analyst Jeff Currie warned that markets may be underestimating the physical supply tightness. He highlighted that global oil inventories have declined by roughly 17 million barrels in the past week alone, pushing Asian markets close to minimum operating levels for crude.

Currie argued that the longer the conflict persists, the stronger Iran's negotiating leverage becomes, as the West's room for maneuver narrows. He also cautioned that reported global inventories of 8 billion barrels include pipeline fill and operational stocks, meaning the truly available supply is far lower. This structural tightness could keep oil prices elevated even if a temporary deal is reached.

Impact on Asian Markets and Petrochemicals

The supply pressure is already spreading beyond crude oil to downstream products like naphtha, a key feedstock for petrochemicals. According to Oxford Economics, Japan and South Korea are among the most affected countries. In South Korea, the naphtha shortage has forced petrochemical giants to cut operating rates significantly, with some producers unable to fulfill orders. This ripple effect underscores the broader economic implications of the Hormuz disruption, extending well beyond energy markets.

For China, the dollar's strength against the yuan reflects both safe-haven flows and concerns over imported inflation. The People's Bank of China has maintained a stable yuan fixing, but the offshore rate has edged weaker as geopolitical risks persist. Traders are now watching for any signs of PBOC intervention to prevent excessive yuan depreciation.

Key Takeaways

1. The dollar strengthened against the offshore yuan as renewed US-Iran hostilities dashed hopes for a quick Hormuz deal.
2. Oil prices rebounded above $98 a barrel after U.S. strikes, with analysts warning of tight physical supply.
3. Asian petrochemical industries are facing severe naphtha shortages, impacting South Korean and Japanese producers.

Sources:

• CNBC - Dollar wobbles as markets cling to hopes for Middle East peace deal
• CNBC - CCTV script for May 26, 2026
• CNBC - Daily Open: Iran strikes, US market optimism