IMF warns sovereign bond yields could spike as debt and inflation risks mount

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IMF warns on bond yield risk

Highlights

The IMF's Global Financial Stability Report warns that sovereign bond yields in advanced economies have reached multidecade highs due to high debt, inflation, and energy costs.
AI companies, including Alphabet's Google and Meta Platforms, have raised hundreds of billions in debt in 2024, with hyperscalers' share of global investment-grade issuance rising to 10% from under 1%.
Market liquidity remains stable in the U.S., Europe, and UK, but Japan's government bond liquidity is deteriorating as yield volatility rises post-yield curve control.

Global stability report flags rising market strain

As reported by CNBC, citing the International Monetary Fund in its latest Global Financial Stability Report, government bond yields in several advanced economies have climbed to multidecade highs as higher energy costs linked to the Middle East conflict and expectations of tighter monetary conditions push up borrowing costs.

The report, released Tuesday during the IMF-World Bank annual meetings in Bangkok, says sovereign bond risk could deteriorate further because high debt loads and rollover risks leave markets vulnerable to repeated fiscal and inflation shocks. The fund says the impact could be severe because sovereign bond markets underpin pricing and collateral across the financial system.

A sharp rise in yields would reduce asset values through higher discount rates, including for AI-related assets, and would also weaken the value of government bonds used as collateral. The IMF adds that debt managers should lengthen maturities, warning that strategies that replace long-term debt with short-term borrowing on a large scale could worsen rollover risk.

AI borrowing and liquidity trends add to concerns

The IMF also points to rapidly increasing borrowing by AI companies as another source of pressure, saying this issuance is now large enough to compete with sovereign bonds for investor demand. According to the report, hyperscalers' share of global investment-grade bond issuance has risen to 10% from less than 1% since 2024.

The global AI expansion has led major technology groups, including Alphabet's Google and Meta Platforms, as well as hyperscalers and AI labs, to raise hundreds of billions of dollars in debt this year. Marc Seidner, chief investment officer of non-traditional strategies at Pacific Investment Management, says AI-linked issuance, much of it longer-dated, has become large enough to compete with government bonds for investor capital, even if it does not appear to be the main driver of yields.

On market functioning, the IMF says liquidity measures remain stable in the U.S., Europe and the UK, and conditions remain orderly. It says hedge funds' leveraged Treasury basis trades have partly unwound without notable pressure in repurchase markets, but the remaining leverage still leaves the market susceptible to a disorderly unwind. Japan stands out as an exception, with liquidity in its government bond market continuing to deteriorate as yield volatility rises after the end of yield curve control.

In our earlier article on the IMF’s fiscal outlook and growing sovereign debt risks, we outlined how advanced economies are projected to run their largest budget deficits since the pandemic, keeping pressure on public finances as borrowing costs rise. We also noted the IMF’s warning that elevated debt loads and higher yields are tightening fiscal conditions, with AI-related investment adding to funding demands in global debt markets.

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