Dollar Index Reaches Lowest Level Since March as Iran Ceasefire Spurs Market Uptick

TLDR

• President Trump agreed to a two-week ceasefire with Iran, sparking a widespread market rally
• The U.S. Dollar Index dropped to its lowest level since March 11, falling approximately 1%
• The euro, yen, pound, Australian dollar, and New Zealand dollar all strengthened against the greenback
• Bitcoin increased by 3.2% to $71,514, while Ethereum rose 5.7% to $2,235
• Expectations that the Strait of Hormuz might reopen pushed oil prices lower, alleviating inflation concerns

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(SeaPRwire) –   On Wednesday, the U.S. dollar experienced a sharp decline following President Donald Trump’s announcement of a two-week ceasefire with Iran. This development pushed global currencies and cryptocurrencies upward as investors shifted away from safe-haven assets.

Trump had previously threatened extensive strikes on Iran’s civilian infrastructure. He had warned that “a whole civilization will die tonight” if his demands were not satisfied, drawing international condemnation.

The ceasefire was announced just under two hours before Trump’s deadline for Iran to reopen the Strait of Hormuz. This news rapidly shifted market sentiment toward risk-on trading.

The U.S. Dollar Index, which measures the greenback against six major currencies, fell by roughly 1% to 98.943. This marks its lowest point since March 11 and positions it for its largest single-day decline since April 21, 2025.

The dollar typically attracts investors during periods of geopolitical uncertainty. As this tension subsided, demand for the dollar as a safe haven decreased.

The euro appreciated by 0.7% to $1.1677. The British pound increased by 0.8% to $1.3403. The Japanese yen strengthened by 0.7% against the dollar, trading at 158.50 per dollar.

The Australian dollar climbed 1.2% to $0.7063. The New Zealand dollar jumped 1.1% to $0.5795. Both currencies are considered risk-sensitive, meaning they tend to appreciate when investor confidence improves.

Crypto Joins the Rally

Bitcoin advanced 3.2% to $71,514.03. Ethereum climbed 5.7% to $2,235.35. These gains occurred alongside broader market moves into assets perceived as higher risk.

Crypto markets have increasingly aligned with global risk sentiment, and Wednesday’s session mirrored this trend.

Oil Prices and Inflation Outlook

The possibility of the Strait of Hormuz reopening also exerted downward pressure on oil prices. The Strait is a vital shipping route for global oil supply.

Lower oil prices alleviate inflation fears. When inflation concerns diminish, the rationale for central banks to raise interest rates weakens. Lower interest rates tend to depress the dollar, as overseas bonds become more appealing to foreign investors seeking higher returns.

Ray Attrill, head of FX strategy at National Australia Bank in Sydney, stated that the ceasefire could bolster the risk-on rally if the Strait reopens. However, he noted that currencies remain susceptible to reversals during the 14-day ceasefire period.

“Markets still need to proceed with a degree of scepticism,” Attrill remarked.

The Dollar Index has now weakened for three consecutive days. While the ceasefire has provided a short-term boost to markets, analysts indicate that much depends on developments over the next two weeks.