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Global Bonds Head for Worst Monthly Selloff in Years as Iran War Fuels Stagflation Fears

LONDON, 30 March 2026 โ€“ Global bond markets are on track for their steepest monthly decline in years, as escalating tensions in the Middle East drive a surge in oil prices and reignite fears of stagflation across the global economy.

The sharp selloff reflects a dramatic shift in investor sentiment, with markets rapidly repricing expectations for inflation, interest rates and economic growth. 

Oil Shock Triggers Bond Rout

At the heart of the bond market turmoil is a surge in crude oil prices, rising from around US$70 in February to above US$100 per barrel, fuelled by disruptions linked to the Iran conflict.ย 

This energy shock has intensified concerns over:

  • Persistent inflation
  • Slower global growth
  • Prolonged monetary tightening

The combination of these factors is driving fears of stagflation, a scenario where rising prices coincide with weakening economic activity.

Yields Surge Across Major Economies

Bond yields have climbed sharply as prices fall, signalling aggressive repricing across global fixed-income markets:

  • US two-year Treasury yields surged nearly 50 basis points
  • UK and Italian bond yields jumped more than 80 basis points
  • Britainโ€™s short-term yields saw their biggest move since the 2022 market crisis ย 

The scale of these moves highlights how quickly investors have shifted away from expectations of interest rate cuts.

Rate Cut Expectations Reversed

At the start of 2026, markets widely anticipated multiple interest rate cuts from major central banks. However, the oil-driven inflation shock has forced a rapid reassessment.

Investors are now:

  • Scaling back expectations of rate cuts
  • Pricing in higher-for-longer interest rates
  • In some cases, even considering additional tightening

This shift has amplified the bond selloff, as higher rates reduce the value of existing fixed-income securities.

From Inflation to Growth Concerns

Interestingly, while inflation fears initially drove the bond rout, markets are beginning to pivot toward concerns over economic slowdown.

Some easing in yields toward the end of the period reflects growing recognition that:

  • High energy costs could suppress demand
  • Businesses may face margin compression
  • Global growth could weaken more sharply than expected ย 

This creates a complex dynamic where bonds are caught between inflation pressure and recession risk.

Asia Diverges as China Outperforms

In Asia, bond market performance has been mixed:

  • Yields in Japan and Australia have risen alongside global peers
  • Chinaโ€™s government bonds, however, have outperformed, with yields declining

Chinaโ€™s relative resilience is attributed to:

  • Lower inflation levels
  • Stronger energy buffers
  • Greater policy flexibility ย 

This divergence highlights how different economies are responding unevenly to the global energy shock.

Market Liquidity Under Pressure

The volatility in bond markets is also beginning to affect liquidity conditions.

Recent market behaviour shows:

  • Wider bid-ask spreads
  • Reduced trading sizes
  • Increased caution among market participants ย 

These dynamics echo stress conditions seen during past crises, raising concerns about broader financial stability if volatility persists.

Implications for Asian Investors

For investors across Asia, the global bond selloff carries several key implications:

  • Fixed income may no longer provide traditional downside protection
  • Rising yields could pressure equities and valuations
  • Currency volatility may increase as capital flows shift

The environment underscores the need for active asset allocation and risk management, particularly in a stagflationary scenario.

Outlook: Markets Caught Between Inflation and Slowdown

Global bond markets are now navigating one of the most complex macro environments in years, where inflation, growth and geopolitics are pulling in different directions.

If the Iran conflict persists and energy prices remain elevated, markets may face:

  • Continued volatility in bonds and equities
  • Further repricing of interest rate expectations
  • Increased risk of a global economic slowdown

For now, the message is clear:

the bond market is no longer a safe haven, it is at the centre of the global macro storm.

Author

  • Bernard is a social activist dedicated to championing community empowerment, equality, and social justice. With a strong voice on issues affecting grassroots communities, he brings insightful perspectives shaped by on-the-ground advocacy and public engagement. As a columnist for The Ledger Asia, Bernard writes thought-provoking pieces that challenge norms, highlight untold stories, and inspire conversations aimed at building a more inclusive and equitable society.

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