Stock prices in 2026 have been influenced by geopolitical events and economic concerns, but interest rate discussions have been a constant factor. Three recent factors are driving renewed interest rate worries: a twenty-year high in long-term US treasury rates, US debt exceeding $40 trillion, and uncertainty surrounding the new Federal Reserve chair. This analysis aims to provide a longer-term perspective on US treasury yields and compare them to global government bond rates. It also revisits the relationship between interest rates and stock prices, noting that higher rates don't always lead to lower stock values.Government bond rates serve as critical indicators for market movements across various asset classes. In 2026, US treasury rates have risen steadily across all maturities, with long-term rates showing more significant increases. Historically, interest rates have experienced extreme volatility, particularly in the 1970s, and have trended downwards for much of the past decade until a recent surge. The fundamental drivers of US interest rates are inflation expectations and real economic growth, not solely the Federal Reserve's actions.Global government bond rates have also moved upwards since 2021, with notable increases in 2022 and continued rises in 2026, although emerging market currencies show more varied trends. This convergence of global rates has significantly impacted carry trade strategies. Changes in government bond rates have direct ripple effects on corporate bond markets, where borrowing costs have increased, especially for lower-rated companies. However, the impact on stock prices is more nuanced. Bond investors have experienced lower prices across both treasury and corporate bond markets in 2026, though the impact is less severe than in 2022 due to more moderate rate changes.