Global Bond Market at Tipping Point as Long-Term Yields Soar

The global bond market is at a tipping point due to a synchronized rise in long-term yields across developed markets. The Japanese 30-year yield has reached 4.2%, four times the policy rate, while the US 10-year yield is now at 4.8% and likely to break through the critical 5% level soon.

The Bank of Japan's (BoJ) slow response to inflationary pressures is causing tension between its policy rate and long-term yields, leading to severe weakness in the Japanese yen. The US Treasury is also under pressure due to the size of its fiscal deficit, which is contributing to elevated Treasury yields.

The European Central Bank has hiked interest rates and is set to do more as it tackles inflationary pressures driven by energy shocks and a changing political dynamic. Meanwhile, the 30-year yield in the eurozone is under relative value pressure due to its widening spread with alternatives such as Japan's 30-year bond.

The absence of a countervailing force to resist these moves means that higher real rates are likely to remain a dominant factor driving long-term yields. The upcoming discussion on secular growth, driven by the productivity revolution sparked by AI spending, may also contribute to sustained pressure on long-end yields.