Key Highlights
- A two-week U.S.-Iran ceasefire agreement sparked a widespread rally across global markets
- The Dollar Index tumbled approximately 1%, reaching its weakest level since March 11
- Major currencies including the euro, yen, pound, and commodity currencies strengthened against the dollar
- Bitcoin surged 3.2% to $71,514 while Ethereum jumped 5.7% to $2,235
- Oil prices declined on expectations of Strait of Hormuz reopening, reducing inflation concerns
The greenback experienced a significant decline on Wednesday following President Donald Trump’s announcement of a temporary ceasefire with Iran. This development triggered a shift in investor sentiment, driving capital flows into global currencies and digital assets as safe-haven demand diminished.
Prior to the ceasefire, Trump had issued aggressive threats targeting Iran’s civilian infrastructure, warning that “a whole civilization will die tonight” unless his conditions were satisfied, remarks that sparked widespread international criticism.
The truce was revealed mere moments before Trump’s ultimatum deadline for Iran to reopen the strategic Strait of Hormuz, immediately catalyzing a market-wide pivot toward riskier assets.
The Dollar Index, which measures the U.S. currency’s performance against a basket of six major global currencies, declined roughly 1% to settle at 98.943. This marked its weakest position since March 11 and represented its steepest single-session decline since April 21, 2025.
Typically, the dollar benefits during periods of geopolitical instability as investors seek refuge. However, with tensions subsiding, the currency’s safe-haven appeal diminished considerably.
The euro appreciated 0.7% to trade at $1.1677. The British pound strengthened 0.8% to reach $1.3403. Meanwhile, the Japanese yen firmed 0.7% versus the dollar, settling at 158.50 per dollar.
The Australian dollar advanced 1.2% to $0.7063, while the New Zealand dollar surged 1.1% to $0.5795. These commodity-linked currencies typically respond positively when market confidence returns.
Cryptocurrency Markets Rally Alongside Risk Assets
Bitcoin climbed 3.2% to reach $71,514.03. Ethereum posted stronger gains of 5.7%, trading at $2,235.35. These advances occurred in tandem with broader market rotations into higher-risk investment categories.
Digital asset markets have demonstrated increasing correlation with global risk sentiment patterns, and Wednesday’s trading session exemplified this relationship.
Energy Markets and Inflation Implications
Expectations surrounding the potential reopening of the Strait of Hormuz applied downward pressure on oil prices. This waterway serves as a vital artery for international petroleum shipments.
Declining energy costs help alleviate concerns about rising inflation. When inflationary pressures moderate, the rationale for central banks to implement interest rate increases weakens. Reduced interest rates typically undermine dollar strength, as international investors pursue more attractive yields in overseas markets.
Ray Attrill, head of FX strategy at National Australia Bank in Sydney, noted that the ceasefire could sustain the risk-on momentum should the Strait reopen successfully. However, he cautioned that currency markets remain susceptible to sudden reversals throughout the 14-day truce period.
“Markets still need to proceed with a degree of scepticism,” Attrill said.
The Dollar Index has now registered losses for three consecutive trading sessions. While the ceasefire has provided immediate market relief, strategists emphasize that the sustainability of this rally hinges on developments during the coming fortnight.
