US Dollar Rallies as US-Iran Negotiation Breakdown Rumors Fuel Safe-Haven Demand

Key Facts

1The US dollar rose by 0.4% on Monday following reports that Iran intended to walk away from negotiations with the US.

2Tehran’s threats sent oil prices soaring and reignited investor interest in the US dollar as a safe-haven asset.

3The risk of currency interventions by Japanese authorities is mounting as USD/JPY continues to rise.

Amid escalating geopolitical tensions in the Middle East, the US dollar is re-emerging as a primary hedge against global risks. According to reports, the Greenback rose by 0.4% on Monday following news that Iran intended to walk away from negotiations with the United States. Tehran’s threats triggered a rebound in oil prices and reignited investor interest in the US dollar as a safe-haven asset, while the risk of Japanese intervention grows as USD/JPY continues its ascent.

This move comes at a sensitive time for global markets as funds monitor any signs of instability in energy supplies; Brent crude prices rose by approximately 1.2% to exceed $83 per barrel following the reports (per market data). Compared to other major peers, the Japanese Yen shows notable weakness, with analysts at ING suggesting that breaching the 157 level could prompt direct intervention from the Bank of Japan to support the local currency.

Regarding price action, the USD/JPY pair is trading at elevated levels, with investors eyeing upcoming US inflation data as an additional catalyst. Looking at the economic calendar, traders are awaiting the Core PCE Price Index release on May 28, 2026, which is the Fed's preferred inflation gauge and could dictate the dollar's direction alongside ongoing geopolitical developments.