Global borrowing costs hit fresh highs over oil, AI and inflation concerns
SkimNews Take
A 30-year yield revisiting 2007 highs while oil and AI risks stack signals the market is repricing long-dated sovereign risk, quietly tightening the fiscal space for governments already planning to borrow through the cycle.
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- 30-year US Treasury yields hit 5.33% on Tuesday, the highest level since June 2007, while UK long-term debt reached 5.85% with similar moves in Germany and Japan.
- Brent crude surpassed $90 a barrel on Tuesday amid Middle East tensions, triggered in part by President Donald Trump's threat to bomb Oman if it 'gets in the way' of talks with Iran to reopen the Strait of Hormuz.
- The Strait of Hormuz has been largely closed for almost six months due to the US-Israel war with Iran, disrupting the vital oil supply passage and driving up motor fuel costs.
- Oxford Economics lead analyst John Canavan identified three concurrent drivers — oil-fuelled inflation risk, elevated government debt levels, and uncertainty over when massive AI investments will pay off — as the forces behind the higher borrowing costs.
- Capital Economics said the largest rises in long-term borrowing costs were concentrated in the US, UK, France, Italy, and Japan — countries where fiscal outlooks are 'most problematic' — but explicitly declined to call it a 'bond market crisis.'
- UK Prime Minister Andy Burnham had to publicly assure bond markets he is committed to existing borrowing limits ('fiscal rules') after succeeding Sir Keir Starmer as Labour leader this summer, with yields rising on his appointment.
- US corporate borrowing has been running at a 'record pace' in recent weeks, mostly to fund AI and data-centre build-outs, adding a further layer of upward pressure on long-term yields alongside government supply.
Why it matters: Higher long-term yields translate directly into pricier mortgages, car loans, and credit cards for consumers across the US, UK, and Europe, while also forcing companies to pay more to borrow — costs they will pass on to customers. Capital Economics flagged the largest increases in countries with 'unsustainable fiscal positions,' meaning the squeeze hits hardest where governments have the least room to borrow their way out.
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