By Rocky Swift and Kevin Buckland
TOKYO, Sept 1 (Reuters) – Japan’s benchmark 10-year bond yield hit 3% on Tuesday for the first time since September 1996, pushed higher by investor concerns about inflation, fiscal health and mounting pressure on the central bank to raise interest rates faster.
With the Middle East crisis stoking inflation fears globally and pressure on the Bank of Japan to accelerate rate hikes, yields have jumped to historic levels across the Japanese government bond curve.
That has accelerated in recent days with domestic media reporting Japan’s ministries and agencies likely made the largest initial budget request on record for next fiscal year.
The spike in the 10-year yield came amid a deepening global debt selloff of bonds on Tuesday as traders fret about oil-driven inflation, monetary tightening and worsening fiscal conditions around the world.
The 10-year JGB yield, used as a benchmark for Japanese mortgages and corporate borrowing, has more than tripled in two years.
On the shorter end, the 5-year rate touched a record 2.265%, and the 2-year yield reached a 31-year peak of 1.81% as markets priced in a near certainty the BOJ will raise interest rates at its meeting this month. Yields rise when bond prices fall.
The spike in yields signals investor doubts about Prime Minister Sanae Takaichi’s ability to balance fiscal responsibility with ambitions to ramp up investment in strategic areas such as semiconductors and AI.
“Through the rise in yields so far, the bond market has to some extent been sounding a warning against fiscal expansion,” said Ryutaro Kimura, senior fixed-income strategist at BNP Asset Management in Tokyo.
“From the bond market’s perspective, I think there is now something of a sense of resignation — tinged with helplessness — about rising interest rates.”
Inflationary pressures and the yen, languishing near a four-decade low, have exerted pressure on the BOJ to speed up rate hikes. The central bank has faced criticism at home and abroad that it was “behind the curve” in normalising monetary policy, which includes a gradual drawdown of its massive JGB holdings.
Japan’s bond selloff has drawn attention because the country’s heavy debt burden makes it especially vulnerable to rising borrowing costs.
The government assumed a 3% long-term interest rate to calculate debt-servicing costs in Japan’s fiscal 2026 budget, and a move above that level would add further strain to the country’s finances.
Finance Minister Satsuki Katayama declined to comment when asked by reporters about the benchmark yield approaching 3% after the first day of the Group of 20 finance leaders meeting on Monday.
Takaichi has pushed an investment-led growth path targeting strategic industries since taking office in October, stoking concerns that Japan could worsen its precarious financial position, with debt exceeding 200% of gross domestic product.
The extra-long end of the JGB curve sold off on Tuesday as well. The yield on the 20-year bond touched 3.885%, a level not seen since 1996, while the 30-year yield was poised for a record high closing level of 4.18%.
Japan is not alone in seeing stress in its bond market. With no end in sight for the U.S.-Iran conflict and elevated oil prices, bond yields across the United States, Germany and France jumped to multi-year highs of late on rising expectations for inflation and central bank tightening.
The 10-year JGB yield rose to 3% almost immediately after trading restarted in the afternoon session, and later edged higher to 3.005%. Even so, results of an auction of the tenor held on Tuesday showed robust demand.
The auction’s result showed that “absolute levels would recruit demand,” said Shoki Omori, chief fixed income strategist for Japan at Deutsche Bank. The new bond’s price and coupon “clears banks’ deposit funding and lifers’ liability costs with room to spare.”
(Reporting by Rocky Swift and Kevin Buckland; Additional reporting by Satoshi Sugiyama and Makiko Yamazaki; Editing by Christopher Cushing, Sam Holmes and Susan Fenton)
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