Economy May 31, 2026 07:02 PM

US Dollar Faces Weekly Decline Following Reports of US-Iran Ceasefire Agreement

Geopolitical shifts and potential easing of shipping restrictions in the Strait of Hormuz weigh on greenback performance.

By Nina Shah

The U.S. dollar is positioned for a weekly loss as reports emerge regarding a potential agreement between the United States and Iran to extend a ceasefire and ease maritime restrictions. This development follows a period where the greenback benefited from safe-haven demand during heightened conflict, but recent geopolitical shifts have altered investor sentiment.

US Dollar Faces Weekly Decline Following Reports of US-Iran Ceasefire Agreement

Key Points

  • The potential US-Iran ceasefire and the easing of shipping restrictions in the Strait of Hormuz are driving a shift in currency valuations.
  • U.S. inflation rose at its fastest pace in three years in April due to energy costs, impacting Federal Reserve interest rate expectations.
  • The Japanese government confirmed significant market intervention totaling 11.7 trillion yen to support the yen's value.

The U.S. dollar saw downward pressure against a basket of major currencies on Friday, tracking toward a weekly loss. The decline comes amid reports that the United States and Iran have reached an arrangement to extend their existing ceasefire and relax restrictions on shipping operations through the Strait of Hormuz. According to four sources reported by Reuters, the proposed deal would provide a 60-day extension of the truce while allowing maritime traffic to resume in the strategic waterway. This arrangement is intended to function while negotiators continue to address more difficult issues, such as Iran's nuclear program.

U.S. President Donald Trump indicated that a final decision regarding the prolongation of this truce with Iran would be made on Friday. The dollar had previously experienced a rally at the beginning of the conflict, driven by its status as a safe-haven asset and the fact that the U.S. economy possessed relatively limited exposure to inflation triggered by energy prices. However, those gains have largely been surrendered as uncertainty regarding the path of the conflict has influenced investor sentiment.

Market Performance and Currency Movements

The dollar index, which tracks the greenback against a selection of major currencies, remained flat at 98.92, though it remains on track for an overall weekly decline. Other major currencies showed strength against the dollar during Friday's trading session:

  • The euro rose by 0.12% to reach $1.16620 and is currently positioned for a weekly gain.
  • The pound sterling increased by 0.18% against the dollar, trading at $1.3466, which marks its second consecutive week of gains.
  • The Australian dollar saw an uptick of 0.31%, reaching $0.71840.
  • The New Zealand dollar climbed nearly 0.85% to $0.5985, hitting a level not seen in more than three months following signals from the Reserve Bank of New Zealand that rate hikes are likely.

Economic Indicators and Central Bank Outlook

Data released on Thursday indicated that U.S. inflation grew at its fastest pace in three years during April. This acceleration was fueled by rising energy costs linked to the Iran war, a factor that has reinforced the perspective among economists that the Federal Reserve will maintain current interest rates without change well into next year.

Analysts have noted a disconnect in market movements. Joseph Trevisani, a senior analyst at FXStreet, observed that while equity markets appear to be ignoring potential economic disruptions, currency markets are experiencing a form of stasis. Despite CME and futures data suggesting the potential for interest rate increases, higher dollar rates have not materialized accordingly.

Juan Perez, the director of trading at Monex USA in Washington, noted that a lack of consensus or a clear narrative is creating divergence, which is reflected in the general lack of movement observed in the U.S. dollar.

Japanese Yen and Market Intervention

In Japan, the yen was trading at 159.27 per dollar, hovering near the 160 level. This specific threshold has historically been viewed as a significant marker that could trigger intervention by Japanese authorities. The Japanese Ministry of Finance confirmed on Friday that the government had intervened in the currency markets over the preceding month, spending 11.7 trillion yen ($73.5 billion) to support the value of the yen, a move that aligned with trader expectations.

Risks

  • Uncertainty regarding the trajectory of the Iran conflict and the finalization of the ceasefire deal could continue to impact investor sentiment across currency markets.
  • The divergence between potential interest rate increases suggested by futures markets and actual dollar rate movements creates market stasis.
  • Ongoing volatility in energy prices, driven by geopolitical tensions, remains a primary factor for inflation trends.

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