Global bond rout deepens as Japan’s yield hits 3% milestone

Japan's benchmark 10-year yield crossed 3% for the first time in three decades, pulling global bond markets into their steepest sell-off in years.

The last time Japan’s 10-year government bond yield sat at 3%, Bill Clinton was in his first term and the word “internet” was still explained in parentheses in newspaper articles. That era ended on September 1, 2026, when the benchmark Japanese Government Bond yield briefly touched 3% intraday before settling just below it.

全球债券价格同步崩盘

US 10-year Treasury yields climbed to approximately 4.79%, sitting near multi-year highs.德国10年期国债利率达到约3.35%，也是多年来未见的水平。追踪全球政府债券收益率的彭博指数触及 3.72%，为 2008 年中期以来的最高读数。

Brent crude oil surpassed $91 per barrel, fueled in part by rising tensions in the US-Iran conflict. Eurozone inflation remained above 3%, keeping the European Central Bank in an uncomfortable position heading into autumn.

特别是在日本，5 年期日本国债收益率攀升至创纪录的 2.26%。 2年期国债收益率触及1.795%，创31年来新高。

日本 2027 财年的预算请求达到创纪录的 143 万亿日元，约合 8900 亿美元。 Japan’s debt-to-GDP ratio already hovers near 250%.更高的收益率意味着更高的偿债成本，这意味着预算压力会随着时间的推移而加剧。

日本央行迟来已久的清算

Traders are now pricing in a meaningful probability that the BOJ will raise its policy rate to 1.25% at its September 17-18 meeting, which analysts are increasingly calling a potential “regime change” in Japanese monetary policy.

When Japanese yields were suppressed to near nothing, Japanese institutional investors, the pension funds and insurance companies managing enormous pools of capital, had a strong incentive to seek returns abroad.随着国内收益率上升，这种激励就会减弱。 Capital that once flowed outward begins to find reasons to stay.

投资者现在正在关注什么

The September 17-18 BOJ meeting is the immediate focal point for markets. A rate hike to 1.25% would confirm that Japan’s policy normalization is proceeding faster than the most conservative forecasts anticipated.

Brent above $91 per barrel keeps the inflation narrative alive across every major economy simultaneously. The BOJ, the ECB, and the Federal Reserve are all operating in an environment where admitting the fight against inflation is over feels premature.

Japan at 250% debt-to-GDP with a record budget request and rising borrowing costs is the most acute fiscal example. The US fiscal picture, with its own record borrowing programs, creates a structural backdrop where Treasury supply keeps increasing even as demand from traditional buyers like Japan potentially softens.

The Bloomberg global yield gauge reached 3.72% on September 1, matching levels last seen in mid-2008. In 2008, yields were falling from those levels as a financial crisis triggered a flight to safety. The current environment is the inverse: yields are rising because investors are demanding more compensation for holding government debt, not fleeing into it.