Goldman Sachs says global bond sell-off is fundamental, not technical

Government bond yields across the world's largest economies have climbed to multi-decade highs, driven by a convergence of swelling fiscal deficits, heavy corporate borrowing to fund artificial intelligence infrastructure, and an energy-price shock tied to the ongoing war in Iran.

A Perfect Storm of Pressures

The U.S. 10-year Treasury yield has pushed near 5%, while UK gilt yields have reached post-2008 peaks, Germany's 10-year bund yield hit its highest since 2011, and Japan's benchmark yield has held above 3%. The sell-off has been broad-based, spanning maturities and geographies, with no single market or driver clearly leading the move.fred.stlouisfed+1

George Cole, head of European Rates Strategy at Goldman Sachs The Goldman Sachs Group, Inc. ↗ 1.91% Research, said in an episode of the firm's Exchanges podcast recorded on Monday that the bond rout reflects "an overlapping set of fundamentals." Governments raising money for deficits and defense spending are now competing directly with corporations borrowing heavily to finance AI capital expenditure, Cole explained, squeezing "the same pool of global savings" and pushing rates higher almost mechanically. He noted that the sell-off has been accompanied by notably low volatility, making it harder to dismiss as a technical dislocation rather than a fundamental repricing.goldmansachs

Energy and Inflation Complicate the Outlook

The most recent catalyst has been surging energy prices. Rising oil costs and elevated European natural gas prices, both linked to the Iran conflict, have reignited inflation fears and raised the prospect that central banks may need to tighten policy further rather than ease. BNY The Bank of New York Mellon Corporation ↘ 0.01% flagged in a September 15 analysis that sticky inflation driven by higher energy prices and geopolitical uncertainty is complicating policymakers' path back to their 2% targets, adding that a shift toward a more restrictive stance "would not be surprising".bny+2

CNBC reported that the global bond rout is forcing governments, companies, and consumers to confront the possibility that expensive debt is here to stay, with leveraged companies and lower-income consumers most vulnerable. BNP Paribas noted that the UK 10-year gilt yield rose above 5.20% while the German 10-year bund reached 3.30%.cnbc+1

What Could Bring Yields Down

Cole said it would take "a fundamental to beat a fundamental" to reverse the move. In the near term, relief on energy prices — which Goldman Sachs's commodity strategists expect within six to 12 months — could ease front-end pressure. Over a longer horizon, Cole pointed to the AI investment cycle: if capital expenditure expectations were to fall or disinflationary effects of AI-driven productivity materialized faster than anticipated, that could ease pressure across the curve. In the meantime, he suggested that five-year bonds may offer growing hedge value for investors willing to look past the next few volatile months.goldmansachs