Japan 10-Year Bond Yield Tops 3% for First Time Since 1996 as Global Bond Selloff Deepens

Japan's 10-year government bond yield crossed 3% on Tuesday for the first time since 1996, a landmark moment for a debt market that spent years pinned near zero. The move was driven by a combination of stronger inflation expectations, heavier fiscal spending projections, and accelerating bets that the Bank of Japan will raise interest rates at its September meeting. Japan's 40-year yield also climbed 6.5 basis points to 4.265%, and Finance Minister Satsuki Katayama said Tokyo would maintain close dialogue with markets. Analysts noted that borrowing costs are now reaching levels already baked into Japan's 2026 budget, leaving little room for additional fiscal stimulus.

The selloff was part of a broader global bond rout fueled by renewed U.S.-Iran hostilities. Two oil supertankers were struck by projectiles while attempting to exit the Strait of Hormuz late Monday, reigniting fears about Persian Gulf supply disruptions. Brent crude rose above $91 a barrel, stoking inflation concerns and lifting rate-hike expectations across major central banks. The 10-year U.S. Treasury yield climbed to 4.792%, its highest since January 2025, while the 30-year Treasury yield sat near 5.28% in what was described as its worst run since 2006. The 10-year German Bund yield reached 3.364%, a level last seen in 2011, and the U.K. 30-year gilt yield hit 5.9%, its highest since 1998.

U.S. Treasury Secretary Scott Bessent added pressure on the BOJ by publicly stating he hoped Governor Kazuo Ueda would "do the right thing," a signal widely interpreted as endorsing an imminent rate hike. Analysts said the comment effectively locked the BOJ into acting in September and raised the prospect of a faster pace of tightening going forward. USD/JPY came under pressure as BOJ hike bets intensified.

Market reaction was broad and negative for risk assets. Dow futures fell around 200 points at the open, with chip stocks dragging Nasdaq futures lower. Gold fell below $4,400 as surging Treasury yields lifted the dollar. The bond selloff also spread to emerging markets, where Fed rate-hike risk overshadowed geopolitical volatility as the primary driver of sentiment. Investors are now watching U.S. labor and manufacturing data for further signals on the Fed's September decision.