Japan’s benchmark 10-year bond yield reaches 3% level for first time in 30 years

On September 1, Japan's benchmark 10-year bond yield reached the 3% level for the first time since September 1996, signaling how inflation, fiscal issues, and shifting monetary policy are transforming a market that has long been characterized by low interest rates. The Middle East crisis has fueled global inflation concerns, prompting the Bank of Japan to accelerate its rate hikes.

Consequently, yields have surged across the Japanese government bond curve, with the 10-year yield nearly tripling in two years. The five-year rate has reached a record high, and the two-year yield has peaked at a level not seen in 31 years as investors price in the likelihood of an imminent rate increase from the Bank of Japan.

Inflationary pressures and a yen nearing a four-decade low have put pressure on the Bank of Japan to expedite rate hikes. The central bank has faced criticism both domestically and internationally for being "behind the curve" in normalizing monetary policy, which involves gradually reducing its extensive holdings of Japanese government bonds (JGB).

The selloff in Japanese bonds has drawn attention due to Japan's substantial debt burden, making it particularly vulnerable to rising borrowing costs. August's 10-year JGB auction saw the weakest demand in a year. Prime Minister Sanae Takaichi has championed an investment-driven growth strategy focused on strategic industries since assuming office in October.

These policies, combined with planned tax cuts, have raised concerns about Japan's worsening financial position, as debt now exceeds 200% of gross domestic product. The bond market stress is not unique to Japan. With no end to the US-Iran conflict and oil prices remaining elevated, bond yields in the United States, Germany, and France have also surged to multi-year highs, reflecting heightened expectations of inflation and central bank tightening measures.