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Analysis-Dollar sheds bulk of Iran war premium, but few expect a sharper drop

Published by Global Banking & Finance Review

Posted on April 15, 2026

4 min read

· Last updated: April 16, 2026

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Analysis-Dollar sheds bulk of Iran war premium, but few expect a sharper drop
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By Saqib Iqbal Ahmed NEW YORK, April 15 (Reuters) - The U.S. dollar has given back most of the gains sparked by the Iran war, as a tentative ceasefire revived appetite for riskier currencies, but

Dollar Sheds Iran War Premium but Unlikely to Fall Much Further

By Saqib Iqbal Ahmed

Analysis of the U.S. Dollar's Performance Amid Geopolitical Tensions

NEW YORK, April 15 (Reuters) - The U.S. dollar has given back most of the gains sparked by the Iran war, as a tentative ceasefire revived appetite for riskier currencies, but investors said robust demand for U.S. assets and waning prospects for U.S. interest-rate cuts should buttress it against sharper declines.

Recent Movements in the Dollar Index

The dollar index, which measures the currency's strength against six major peers, rose more than 3% to a 10-month high of 100.64 after the U.S.-Iran conflict ignited a rush for safe havens. It has since given back most of those gains to trade at 98.07, about 0.5% above where it was before the fighting began.

Impact of U.S. Policy and Global Events

The dollar skidded 11% in the first half of 2025 following President Donald Trump's offensive on tariffs and attacks on the U.S. Federal Reserve, as those moves raised investor concerns about the U.S.'s status as a global safe-haven. The flight to the greenback following the outset of the Iran war made it clear investors still see U.S. markets as a sanctuary.

Investor Sentiment and Market Flows

As a result, while the dollar could extend its retreat, investors are skeptical it will break through this year's low of 95.55. While rising volatility drove U.S. equity fund outflows in early March, investors have returned to stocks as risk sentiment has improved.

"For the dollar to keep breaking down, you basically need capital outflows from the U.S. or at least a reduction in the inflow of capital going into the U.S.," said Joaquín Kritz Lara, chief economist and strategist at Numera Analytics, a global macroeconomic research firm. "We just don't see that happening."

The S&P 500 is on the verge of surpassing its January record high and investors are optimistic that corporate earnings will cushion any repercussions from the Middle East conflict.

Interest Rate Differentials and Global Demand

INTEREST RATE DIFFERENTIALS

Foreign holdings of U.S. Treasuries rose to $9.305 trillion in January from $9.271 trillion in December, according to federal data, due to elevated yields and expectations shifting away from Federal Reserve rate cuts. Foreign holdings are up 8% year-over-year, reflecting sustained overseas demand even as Treasury issuance has grown to fund rising U.S. deficits.

Markets were pricing in two Fed reductions in 2026, but now see one at most, as surging oil prices from the war added a fresh inflation headache for policymakers already in wait-and-see mode.

Comparisons with European Central Bank Policy

The European Central Bank is expected to turn more hawkish as it grapples with the energy shock stemming from the war.

"You would think that that would be bad for the dollar and I think, tactically it probably could be," Numera's Lara said. "But in the medium-term you care about the level of interest-rate differentials, and the level of interest-rate differentials are still very much in favor of the U.S. relative to Europe."

The 2-year German-U.S. bond spread sits at 1.135 percentage points - well below its 2018 peak of around 3.57 percentage points, but still above its 20-year median of 0.93 percentage points. That gap means U.S. assets retain a yield advantage over their European equivalents, acting as a cushion for the dollar.

Short-Term Outlook and Geopolitical Risks

RANGE-BOUND FOR NOW

For the moment, the U.S.-Iran war is at an uneasy détente, though the twin shipping blockades out of the crucial Strait of Hormuz by both nations have the potential to reignite the conflict.

Potential for Renewed Safe-Haven Demand

"Is there any reason for the dollar to be pricing in a zero geopolitical risk premium? I would argue not," said Paresh Upadhyaya, director of market strategy at Pioneer Investments, referring to the dollar giving back its war-spurred gains. Safe-haven demand could resume if negotiations between the countries fail, he said.

Bearish and Neutral Views on the Dollar

Even dollar bears see little chance of the currency breaking meaningfully below its recent lows anytime soon.

Elias Haddad, global head of markets strategy in the forex team at Brown Brothers Harriman, says the dollar is still weighed down by eroding U.S. fiscal credibility, a persistent current account deficit, and concerns about the politicization of the Federal Reserve that undermines confidence.

But in the interim, the countervailing factors mean the dollar is unlikely to stray far from its current level.

"Over the next six to nine months, the cyclical backdrop for the dollar is neutral," Haddad said.

(Reporting by Saqib Iqbal Ahmed, editing by Colin Barr and David Gaffen)

Key Takeaways

  • The dollar index eased from its 10-month high of 100.64 back to around 98, buoyed by renewed risk appetite amid tentative ceasefire developments.
  • Foreign demand for U.S. Treasuries remains robust—foreign holdings reached about $9.3 trillion in early 2026, underscoring continued confidence in U.S. assets. (en.wikipedia.org)
  • Interest-rate differentials still favor the U.S.—German 2‑year yields are significantly lower than U.S. yields, preserving a yield advantage that supports the dollar. (berenberg.de)

References

Frequently Asked Questions

Why did the U.S. dollar gain during the Iran war?
The dollar gained as investors sought safe-haven assets during heightened geopolitical risks sparked by the Iran war.
What has caused the dollar to lose its Iran war premium?
A tentative ceasefire and revived risk appetite led the dollar to lose most of its war-driven gains.
Will the U.S. dollar continue to decline sharply?
Most investors expect strong demand for U.S. assets and limited prospects for rate cuts to cushion the dollar, reducing chances of a sharp decline.
How do U.S. interest-rate differentials affect the dollar?
Higher U.S. interest-rate differentials compared to Europe continue to support the dollar despite volatility.
What could cause renewed demand for the U.S. dollar?
Safe-haven demand could resume if U.S.-Iran negotiations break down or geopolitical risks escalate again.

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