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Global bond prices set for biggest monthly fall in years as Iran war stokes stagflation fears

Published by Global Banking & Finance Review

Posted on March 30, 2026

4 min read

· Last updated: April 1, 2026

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Global bond prices set for biggest monthly fall in years as Iran war stokes stagflation fears
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By Rae Wee and Alun John SINGAPORE/LONDON, March 30 (Reuters) - Global government bond prices were set for their biggest monthly fall in years as investors weighed the risks from a prolonged war in

Global bonds stagger toward steep monthly losses as war's economic toll mounts

Rising Yields and Market Reactions Amid Ongoing Conflict

By Rae Wee, Alun John and Gertrude Chavez-Dreyfuss

SINGAPORE/LONDON/NEW YORK, March 30 (Reuters) - Global government bonds are headed for their biggest monthly fall in years as investors increasingly factor in the chances that a prolonged war in the Middle East will cause inflation to spike and undermine economic growth.

Impact of U.S.-Israel War on Global Bond Markets

The U.S.-Israel war on Iran, now entering its second month, has caused a dramatic spike in oil and gas prices as markets reel from the worst ever disruption to energy supplies in history. That has raised expectations for higher prices throughout the economy - boosting bond yields in major fixed income markets in the U.S., Europe, Japan and elsewhere as investors sell those instruments.

U.S. Treasury Yields and Federal Reserve Expectations

The U.S. Treasury two-year yield - which moves inversely to its price and reflects Federal Reserve interest-rate expectations - was set for a monthly rise of 45 basis points, the largest since October 2024. Monday, it was down 8.6 bps at a yield of 3.83%.

The move reflects investors scrapping earlier assumptions on Fed easing this year. U.S. rate futures no longer see the U.S. central bank lowering rates this year - and instead have started to factor in a small rise in the benchmark fed funds rate.

The benchmark 10-year Treasury yield is up nearly 40 bps on the month to around 4.39%, though it traded lower on Monday.

Japanese bond yields surged to three-decade highs on Monday, and were up 13 bps on the month.

Investor Sentiment and Economic Growth Concerns

Notably, Treasuries rebounded from the previous week's losses on Monday, in what investors said could be a sign that some are starting to worry that the war's effect on growth might outweigh the effect on inflation, which has dominated the discussion since the outset of the conflict.

"The Fed is probably going to have a difficult time raising the fed funds rate just based on the focus on slowing growth," said Jim Barnes, director of fixed income at Bryn Mawr Trust in Berwyn, Pennsylvania. "And they're also going to have a very difficult time lowering interest rates. We have inflation at 3% and many expectations are for it to go higher not lower."

Oil prices remain firmly above $100 per barrel, and are set to end March with their biggest percentage gain since at least 1988.

Bigger Moves in Europe

Bond price moves in Europe have been more dramatic, and markets are now pricing in two or three interest-rate hikes from the European Central Bank and Bank of England this year. In the BoE's case, that's a dramatic swing from expectations for two rate cuts prior to the war.

UK and Eurozone Bond Market Volatility

Britain's two-year yield has risen 98 basis points this month, its most since 2022's market turmoil during Liz Truss' short-lived premiership, while the 10-year yield was up 70 bps.

Germany's two-year yield on the month has jumped 61 bps and its 10-year yield is up nearly 40 bps, hitting a 15-year high of 3.13% last week.

Moves in Italy, which investors see as more exposed to the energy shock than other euro zone peers, are almost comparable with Britain - its two-year yield is up 85 bps and its 10-year 78 bps on the month.

But euro zone bond yields were also a touch lower on Monday, potentially caught up in the same shift in narrative towards growth worries.

Central Bank Dilemmas in a Stagflation Scenario

"It's a very difficult situation for the ECB and every central bank in this stagflation scenario to balance the risk of inflation ... and not hurting the economy even more by raising rates too much," Berenberg senior economist Felix Schmidt said.

China Outperforms

Asia-Pacific Bond Market Performance

In the Asia-Pacific region, Australia's three-year bond yield was up about 50 bps this month, the most in 17 months, despite easing on Monday to around 4.72%.

Japan's 25-bps monthly rise in its 10-year yield would mark the steepest advance since December.

Chinese Bonds and Economic Insulation

Chinese government bonds have held up relatively well, as investors bet the world's second-largest economy will be better insulated from the oil shock due to its ample crude stockpiles, dominance in green energy and subdued inflation.

Chinese two-year bond yields have fallen more than 11 bps, set for their largest monthly fall since December 2024.

(Reporting by Rae Wee in Singapore, Alun John in London, and Gertrude Chavez-Dreyfuss in New York; Additional reporting by Samuel Shen in Shanghai and Sophie Kiderlin in London; Editing by Kevin Buckland, Dhara Ranasinghe, Andrew Heavens and David Gaffen)

Key Takeaways

  • The two‑year US Treasury yield rose about 50 bps in March—its largest monthly gain since October 2024—reflecting a sharp sell‑off in short‑dated bonds even as yields dipped slightly to ~3.87 %. Oil‑fuelled stagflation risks are driving repricing away from Fed easing — Reuters analysis.
  • Oil prices surged over 50% since late February, with Brent nearing $111/barrel and WTI above $97. Rising supply concerns from the Strait of Hormuz closure and regional attacks are intensifying inflation worries — Reuters, AP, and Wikipedia report.
  • European bond yields jumped dramatically: UK two‑year yields are up 98 bps, Germany’s two‑year rose 69 bps, and Italy’s surged 85 bps. Markets now expect multiple ECB and BoE rate hikes this year — Reuters commentary.
  • In Asia, Australia’s three‑year yield rose ~50 bps, and Japan’s 10‑year yield rose 25 bps for its largest monthly gain since December. By contrast, Chinese two‑year yields fell over 11 bps, as investors anticipate greater insulation from energy shocks due to China’s stockpiles and green energy leadership.

References

Frequently Asked Questions

Why are global bond prices falling significantly this month?
Global bond prices are falling due to concerns over the ongoing Middle East conflict, surging oil prices, and fears of stagflation impacting inflation and growth.
How have government bond yields changed in the US and Europe?
US Treasury yields and European government bond yields have seen their largest monthly rises in years, with some reaching multi-decade highs.
What is causing stagflation fears in financial markets?
Rising oil prices and the prolonged Iran war have increased worries about simultaneous stagnant economic growth and high inflation.
How are Asian bond markets responding compared to global peers?
Chinese government bonds have outperformed, as China's economy is seen as better insulated due to large crude stockpiles and subdued inflation.
What challenge are central banks facing amid these market shifts?
Central banks must balance controlling inflation with avoiding further harm to economic growth in a stagflation scenario.

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