Dollar Advances Amid Hormuz Blockade

The U.S. dollar gained ground against major peers as the ongoing closure of the Strait of Hormuz maintained pressure on energy prices and global inflation expectations. At the same time, structural changes in the United Kingdom are set to alter how cross-border currency trades settle over the weekend. These combined developments highlight a foreign exchange market driven by immediate geopolitical tension and evolving cross-border plumbing.

U.S. Dollar Supported by Supply Chain Standoff

The U.S. Dollar Index (DXY) rose 0.32 percent to 99.31 as markets reacted to the ongoing standoff between the U.S. and Iran. The greenback traded at 159.081 against the Japanese yen and 1.375 against the Canadian dollar. West Texas Intermediate (WTI) crude for June held near elevated levels, easing slightly by 7 cents to $108.59 per barrel after the U.S. temporarily halted planned military strikes.

Despite the brief pause in military action, the Strait of Hormuz remains closed to shipping traffic. This blockade in a critical energy artery is fueling sustained inflation concerns, extending a surge in U.S. Treasury yields to levels unseen since January 2025. The prospect of elevated crude oil prices forcing interest rates higher continues to support the dollar over other major fiat currencies.

Bank of England Targets Sunday Settlement

The Bank of England opened a formal consultation to extend settlement hours for the real-time gross settlement (RTGS) service and the CHAPS payment system. The central bank plans to introduce an additional settlement day over the weekend, most likely on Sunday, before eventually moving toward near-continuous operation.

Because global foreign exchange markets reopen on Sunday evening, adding RTGS availability at that time directly supports cross-border currency flows at the start of the trading week. This reduces the friction that occurs when trades are executed outside traditional banking hours but must wait for Monday to achieve final settlement. Expanding these hours is designed to keep central bank money relevant as newer digital asset markets run continuously.

Malaysian Trade Surplus and Regional Rate Holdings

In Asia, Malaysia recorded a strong trade surplus of MYR 24.60 billion in March. The surplus was backed by an 8.3 percent annual rise in exports and a 10.4 percent increase in imports. Across the region, Bank Indonesia is broadly expected to keep its benchmark lending rate unchanged at 4.75 percent following its monetary policy meeting.

These local data releases provide the fundamental baseline for the Malaysian ringgit and regional capital flows. However, Asian macro indicators are currently competing with the stronger U.S. dollar and broad market weakness, as investors remain cautious regarding Middle East supply disruptions and the global interest rate outlook.

What Is Driving It

The immediate force behind the currency moves is the prolonged energy blockade in the Middle East. High crude oil prices feed directly into inflation calculations, pressuring central banks to maintain or raise interest rates. This dynamic drives up bond yields, pulling capital toward the U.S. dollar. On the structural side, central banks are recognizing that modern capital markets operate beyond traditional business hours, prompting infrastructure upgrades to match the reality of uninterrupted global trading.

Why It Matters

The foreign exchange market is currently pricing in a sustained period of energy-driven inflation that anchors U.S. dollar strength. As long as key shipping routes remain blocked, the threat of higher commodity prices heavily influences cross-border currency flows and interest rate expectations. Meanwhile, the planned shift to Sunday settlement in the UK shows that the mechanical limits of currency trading are shrinking, demanding tighter liquidity management from institutions participating in global markets.