Global Bond Rout Tests Markets and Policymakers

Global bond yields have risen sharply, with the 30-year US Treasury yield above 5% and borrowing costs reaching multi-decade highs in Germany, Japan and the UK. Ordinarily, higher yields would be expected to pressure equities by increasing financing costs, reducing the present value of future earnings and making bonds more attractive relative to stocks. However, major equity markets have remained resilient: the S&P 500 is up about 13% this year, the STOXX 600 about 9.5% and the Nikkei 225 more than 27%.

Global government bond markets experienced a sharp sell-off during the week, with yields rising across the United States, Japan, the United Kingdom and Germany. The move reflects growing investor concern that inflation may remain structurally higher for longer as governments borrow more heavily, energy prices rise and geopolitical tensions disrupt trade and supply chains. Investors cited deglobalization, protectionism, industrial reshoring and increased defense spending as long-term forces that could generate persistent inflationary pressure, marking a potential break from the relatively stable, low-inflation environment of the 2010s. Emma Moriarty of CG Asset Management argued that tariffs and the Middle East conflict represent symptoms of a broader shift toward inflationary economic forces. Benchmark yields reached significant milestones: the U.S. 10-year Treasury yield rose to its highest level since November 2023, Japan’s 10-year yield exceeded 3% for the first time since 1996, U.K. 10-year gilt yields reached a post-2008 high, and German bund yields climbed to levels last seen in 2011. The rise in longer-term yields suggests investors are demanding a greater term premium to compensate for increased fiscal borrowing, uncertain inflation and reduced central-bank support. Central banks face a difficult policy balance. They must respond to supply shocks and possible wage and price effects without tightening so aggressively that they worsen weak economic growth. Energy prices, including Brent crude near $96 per barrel, are adding to the pressure. Analysts warned that long-term yields may continue rising, although artificial intelligence could eventually provide a disinflationary boost through higher productivity. The bond sell-off is also changing investment strategy. Greater inflation volatility may increase the correlation between stocks and bonds, reducing bonds’ diversification value, while higher real yields make fixed income more competitive. Analysts generally recommended shorter-duration, defensive bond positioning and noted that a weaker U.S. dollar could benefit emerging markets.

Renowned economist Mohamed El-Erian told CNBC that the global sell-off in government bonds could continue, maintaining upward pressure on yields because he sees little political appetite in the United States for immediate fiscal consolidation. Global bond yields rose to multi-decade highs during the week as investors reacted to concerns about inflation, interest rates and the growing volume of government and corporate debt issuance. Although the sell-off eased on Friday and U.S. Treasury yields were slightly lower, El-Erian said the underlying imbalance between debt supply and dependable buyers remained unresolved. El-Erian identified China, Japan and Gulf countries as increasingly less reliable buyers of U.S. Treasurys because of geopolitical and domestic pressures. He also cited Norway’s sovereign wealth fund reconsidering its allocation to U.S. government bonds, saying the significance of the move was its signal rather than its size. In his view, the bond-market pressure reflects a fundamental supply-and-demand imbalance more than concerns about inflation or Federal Reserve credibility. He warned that the United Kingdom, Japan and France were especially vulnerable to sovereign-debt problems. The U.K., he said, is a “high-beta” market whose rates tend to move more sharply than U.S. rates. France has also become a major focus for investors, with Italian bonds now trading inside French bonds, reversing the traditional focus on Italy as the eurozone’s primary source of concern. El-Erian criticized the Trump administration’s efforts to influence bond-market outcomes and pressure the Federal Reserve to cut interest rates. He said the Treasury Department’s decision to expand long-dated Treasury buybacks represented “a step too far,” arguing that authorities cannot impose lasting market outcomes without creating unintended consequences and collateral damage. He also said political concerns about mortgage affordability would increase pressure on Fed Chair Kevin Warsh, who succeeded Jerome Powell. Finally, El-Erian praised Warsh’s Jackson Hole speech for addressing concerns about his policy reaction function, warning against excessive forward guidance, and recognizing artificial intelligence as a potential factor of production capable of significantly affecting the economy’s supply side.