Forex Markets Whipsaw on US-Iran Deal Uncertainty as Dollar Weakens to 98.03

Currency markets experienced dramatic volatility on Thursday, May 7, 2026, as traders navigated conflicting signals about US-Iran peace negotiations that could determine the fate of global oil flows and reshape risk sentiment across financial markets.

The U.S. Dollar Index ($DXY) slipped to 98.03, down 0.01% from the previous session and marking a 2.59% decline over the past 12 months. Meanwhile, EUR/USD climbed to 1.1752, gaining 0.03% as the euro benefited from diminished safe-haven demand for the dollar.

Breaking: US-Iran Discussing 30-Day Truce to Reopen Strait of Hormuz

Three senior Iranian officials told The New York Times that Tehran and the United States are discussing a one-page plan for both sides to reopen the Strait of Hormuz and end hostilities for 30 days while they attempt to reach a comprehensive deal. The proposed memorandum of understanding would see Iran easing its grip on the strategic waterway while the U.S. gradually lifts its naval blockade of Iranian ports.

President Donald Trump told reporters Wednesday that his administration had "very good talks" with Tehran in the last 24 hours, fueling optimism that a deal could be imminent. However, markets have whipsawed repeatedly over the past week as conflicting statements from both sides created uncertainty about whether negotiations would succeed.

The Strait of Hormuz, through which roughly 20% of global oil supplies typically flow, has been effectively closed since late March when tensions escalated into military confrontations. The closure sent crude oil prices soaring, with WTI crude reaching above $105 per barrel and Brent crude spiking to similar levels before pulling back sharply on deal hopes.

Oil Prices Retreat 6% as Deal Optimism Takes Hold

Oil markets experienced their sharpest single-day decline in weeks on Wednesday, with WTI crude futures dropping approximately 6% to around $96 per barrel and Brent crude falling to $102-103 per barrel. The pullback came as traders priced in the possibility that Strait of Hormuz flows could resume within weeks if negotiations succeed.

The oil price decline provided relief to energy-importing economies, particularly in Europe and Asia, where elevated crude prices had weighed on economic growth forecasts. However, analysts caution that the situation remains fluid, with any breakdown in negotiations likely to send prices surging back toward recent highs.

Dollar Loses Safe-Haven Bid as Risk Appetite Returns

The dollar's weakness reflects a broader shift away from safe-haven assets as investors grew more optimistic about a potential de-escalation in the Middle East conflict. Throughout the Iran crisis, the dollar had struggled to maintain its traditional safe-haven status, with gold and the Swiss franc attracting more defensive capital flows.

The EUR/USD pair has now strengthened 0.76% over the past month and 4.69% over the past year, reclaiming the 1.17 level that traders view as a key technical threshold. A sustained move above 1.20 would signal a more decisive shift in the pair's trajectory, according to technical analysts.

Cross-Currents in Safe-Haven Currencies

Traditional safe-haven currencies displayed mixed performance as markets grappled with rapidly changing headlines. The Japanese yen and Swiss franc, which had strengthened sharply when the Iran conflict first escalated in late February and early March, gave back some gains as risk appetite improved.

However, analysts note that safe-haven dynamics have evolved during the Iran crisis. "Only the US dollar provided genuine safe haven protection for global equities during the initial phase," according to recent analysis from Allianz Trade. "Interestingly, gold, the Swiss franc, the Japanese yen and government bonds all failed to deliver consistent protection."

The USD/JPY pair and dollar-Swiss franc rate both showed modest dollar strength against these traditional safe havens, suggesting that investors are not yet ready to fully abandon defensive positioning despite the diplomatic progress.

Markets Remain Vulnerable to Headline Risk

Despite the optimism surrounding potential peace talks, currency traders remain on high alert for any signs that negotiations could falter. Iran announced new rules for ships seeking to cross the Strait of Hormuz, with Tehran declaring itself the regulator of shipping through the strategic waterway—a move that could complicate any agreement.

CNN reported that Iran is expected to reply to mediators regarding the proposed US deal, but regional sources cautioned that talks had previously shown promise before stalling. The fragility of the diplomatic process has kept volatility elevated across currency markets.

Technical Outlook and Key Levels to Watch

From a technical perspective, the EUR/USD pair faces immediate resistance at 1.18, with a break above that level likely to trigger momentum-based buying toward the psychologically significant 1.20 level. Support sits at 1.1650, roughly 0.9% below current levels.

The Dollar Index ($DXY) has broken below the 98.50 support level that had held throughout April. The next significant support zone lies at 97.50, while resistance on any rebound appears at 99.00 and 99.50. Traders are watching these levels closely as they calibrate risk-reward ratios for near-term positions.

Options markets are pricing in continued elevated volatility over the next two weeks, with implied volatility for major currency pairs remaining well above historical averages. This suggests that professional traders expect more dramatic swings as the Iran situation evolves.

What Traders Should Watch

In the days ahead, forex traders should monitor several key developments:

• Iranian response to the US proposal: Any formal acceptance or rejection will trigger immediate market moves
• Oil inventory data: Weekly US petroleum data could reveal whether supply disruptions are easing
• Central bank commentary: Federal Reserve and European Central Bank officials may address how the Iran situation affects their policy outlooks
• Technical breaks: Sustained moves above EUR/USD 1.18 or below $DXY 97.50 could trigger momentum-driven volatility
• Geopolitical headlines: Any military incidents or diplomatic setbacks will immediately impact safe-haven flows

Broader Market Implications

The currency market volatility reflects broader uncertainty about whether the Iran crisis is entering its final chapter or merely experiencing a temporary lull. Stock markets rallied earlier in the week on peace hopes, only to give back gains as doubts resurfaced about whether an agreement was truly imminent.

For currency traders, the path forward depends heavily on whether the 30-day truce proposal becomes reality. A successful agreement would likely accelerate dollar weakness as risk appetite improves and oil prices normalize. Conversely, any collapse in negotiations could trigger a sharp reversal, sending the dollar surging and risk-sensitive currencies tumbling.

The EUR/USD pair has emerged as a key barometer of market sentiment during this crisis. Its ability to hold above 1.17 in the face of repeated headline whipsaws suggests that underlying dollar fundamentals remain soft, even as geopolitical uncertainty provides occasional support. Traders positioning for the next major move are watching the pair closely for signals about where risk sentiment is truly headed.

As Asian markets prepare to open for Friday trading, the focus will remain squarely on any new developments from the US-Iran negotiations. With so much hanging on the outcome, forex volatility is likely to remain elevated until clarity emerges about whether the Strait of Hormuz will reopen and global oil flows can normalize.