Japan's bond market sees unexpected demand for 20-year JGBs as yields rise to multi‑decade highs. The auction attracted strong interest with yields close to 3.75% to 3.76%.

As of July 9, the 20-year JGB yield climbed 2 bps to 3.890%, while the 30‑year yield surged past 4.030%. The 10‑year JGB also hit 2.85%, the highest in 30 years. The 30‑year auction recorded a bid‑to‑cover ratio of 4.55, the highest since 2019.

Rising yields shift capital from risk assets, rattling crypto markets. Bitcoin has already shown pressure as interest rates climb, mirroring the U.S. Treasury surge in 2022‑23. Japan’s move is now a global yield driver.

The Bank of Japan has eased yield‑curve control, letting market dynamics lead. Entities like SMBC Nikko Securities now view higher coupons as attractive. Future BOJ policy shifts could either cement this trend or re‑ignite risk‑asset demand.