Global bond markets have experienced a significant sell-off in recent months, driving government bond yields to their highest levels in decades across developed nations, including the U.S., Germany, Japan, and the UK. For example, the 30-year U.S. Treasury yield has remained above 5%, a level not seen since 2007, and the 10-year U.S. Treasury yield briefly hit 4.78%, its highest since January 2025. This trend has been fueled by investor concerns over persistent inflation, rising fiscal deficits, and increasing government debt, with the U.S. national debt surpassing $40 trillion and a projected federal budget deficit of approximately $2.1 trillion for the current fiscal year.
Despite the rising bond yields, equities have shown remarkable resilience. The S&P 500 has climbed approximately 13% this year, the STOXX 600 in Europe is up about 9.5%, and Japan’s Nikkei 225 has surged over 27%. This counterintuitive strength in stocks is attributed to a robust underlying economy, particularly in the U.S., and significant investments in artificial intelligence and data centers. John Williams, president of the New York Fed, indicated that the rise in long-term yields reflects a strong U.S. economy and a positive economic outlook, suggesting that the economy is influencing financial conditions rather than the reverse.
Foreign investors, in a historic shift, are now prioritizing U.S. stocks over U.S. Treasuries. Deutsche Bank reported that for the first time outside of the Global Financial Crisis, equity inflows into the U.S. have surpassed fixed income. The share of U.S. Treasuries held by overseas investors has decreased from over 50% at its peak to about 30% today, while foreign ownership of U.S. equities has reached all-time highs, with a record $600 billion of net equity inflows in the year to March 2026. This preference for equities is driven by a booming American private balance sheet, record profit margins, and the AI buildout, contrasting with a worsening public sector balance sheet and persistent large deficits. Fund management giants like BlackRock are now overweight U.S. equities and underweight long U.S. Treasuries, viewing long-duration bonds as less reliable diversifiers in the current market environment.
Emerging markets, however, have shown resilience amidst the developed-nation bond sell-off. While yields climb globally, investors are increasingly demanding higher compensation for holding long-term debt, leading to a structural pressure on Treasuries. Concerns are mounting that a sustained break above 4.8% on the 10-year U.S. Treasury yield could create broader problems for other asset classes, including ultra-long-duration bonds, high-valuation growth stocks, commercial real estate, and some private assets. Analysts suggest that the growing difficulty of addressing market concerns without tackling underlying fiscal pressures is becoming evident, as the government competes with substantial corporate borrowing for investor demand. For instance, over $8.4 trillion of U.S. government securities are scheduled to roll over by year-end, and Goldman Sachs revised its forecast for USD investment-grade issuance in 2026 upward to $2.3 trillion.
