Global Interest Rates Surge: What It Means for Markets

Globally, interest rates are on the rise, and this trend is evident in various countries. The US 30-year Treasury bond yield has reached a 19-year high, while Japan's 10-year government bond yield has hit a 30-year high.

The key difference between bond yields and interest rates lies in their definitions. Bond yields are the traded levels of bonds in the secondary market, whereas interest rates refer to the overnight rate at which central banks lend to commercial banks. For individuals, interest rates pertain to bank deposit or lending rates.

In the US, the high government debt level and expected rate hikes have led to rising bond yields. The country's outstanding government debt exceeds $40 trillion, with a servicing cost of over $1 trillion per year. This has prompted Treasury Secretary Scott Bessent to buy back some long-maturity bonds.

The market expects rate hikes in the US, despite high servicing costs, and bond yields are also moving in response to these expectations. In Japan, the government's massive debt has led to rising bond yields due to rate hikes by the Bank of Japan and expected further increases.