The Market Powerful Enough to Sway Stocks and Trump Is Rumbling Again

Global bond markets are signaling economic unease, with yields climbing to levels not seen in years or even decades. The 10-year U.S. Treasury yield has topped 4.60%, up from under 4% before the Iran war began in late February, while the 30-year yield has surpassed 5%, matching pre-2008 financial crisis levels. Japan’s 10-year government bond yield has also risen to 1990s levels, reflecting widespread concerns about borrowing costs. These shifts are driven by oil price volatility tied to the Iran war, rising government debt, and inflation fears. Higher yields increase borrowing costs for households and businesses, pushing 30-year mortgage rates above 6% and making corporate expansion—especially in AI-driven sectors like data centers—more expensive. Economists warn this could slow growth at a time when consumer confidence is already weak. Stock markets are under pressure as rising yields reduce the appeal of riskier investments. When Treasury bonds offer higher returns, investors shift away from stocks, threatening corporate profits—the foundation of market performance. Strategists like Michael Wilson of Morgan Stanley note that yields above 4.50% mark a critical threshold, signaling potential economic headwinds. The bond market’s influence extends beyond finance, historically persuading leaders like Donald Trump to reconsider policies. Its current signals suggest growing caution about debt and inflation, with ripple effects on global economies already grappling with high interest rates.