Global Bond Sell-Off Intensifies as UK Borrowing Costs Hit 6% 2026

The global bond sell-off intensified on Thursday, driving UK long-term borrowing costs above 6% for the first time in 28 years. The yield on 30-year UK gilts hit 6%, a level not seen since 1998, as investors grappled with fears of persistent inflation and unsustainable government deficits.

Why Bond Yields Are Surging Globally

The turmoil in global bond markets is being fueled by a combination of factors. Persistently high oil prices, driven by ongoing Middle East tensions, have reignited inflation fears. Investors worry that central banks will be forced to raise interest rates further to prevent price increases from becoming embedded in the economy.

At the same time, concerns over the US deficit reaching unsustainable levels have added to the sell-off. On Wednesday, US 10-year Treasury yields hit their highest level since 2002, while UK 5- and 10-year yields also rose sharply.

Impact on UK Borrowing Costs and Stocks

The surge in yields is driving up the UK government’s borrowing costs, adding pressure on Chancellor John Healey ahead of the budget later this month. Stock markets also took a hit, with the London market falling 1.7% in early trading. European bourses were not spared, as Germany’s Dax and France’s CAC 40 each dropped 1.1%.

“There is carnage in the bond market which is hitting stocks hard,” warned Neil Wilson, Saxo UK Investor Strategist. “It looks like the relentless rout in the bond market is sending investors running for cover.”

Key Takeaways for Investors

• Rising yields signal higher borrowing costs for governments and corporations.
• Inflation fears are prompting expectations of further central bank rate hikes.
• Stock market volatility is likely to persist as bond markets remain under pressure.
• Global interconnectedness means turmoil in one market quickly spreads to others.

Comparing Global Bond Yields

The table below shows recent yields on key government bonds, highlighting the scale of the sell-off.

What Lies Ahead for Bond Markets

With inflation risks skewed to the upside and central banks maintaining a hawkish stance, bond markets could remain volatile. Investors will be watching upcoming economic data and central bank meetings for clues on the path of interest rates. The UK budget later this month will also be closely scrutinized for any fiscal measures that could impact gilt yields.

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