Global bond yields reached new highs on September 1, 2026, as renewed conflict in the Middle East pushed oil prices past $91 a barrel and traders anticipated interest rate hikes. This put significant pressure on stock markets worldwide. The 10-year Japanese benchmark yield hit 3% for the first time since 1996, while Britain's 10-year yield reached its highest since 2008 above 5.24%. Germany's equivalent yield rose to a 15-year high at 3.36%, and the 10-year U.S. Treasury yield climbed to 4.79%, its highest since early 2025. Analysts like Ryutaro Kimura of BNP Paribas Asset Management noted a "sense of resignation" regarding rising Japanese borrowing costs, traditionally an anchor for world markets. Andrew Lilley of Barrenjoey indicated that much of the bond sell-off stemmed from a reassessment of Fed policy, with expectations of at least a three-rate hike cycle beginning in September.
The surge in oil prices, with Brent crude rising 2% to $92.20, and renewed U.S.-Iran fighting intensified inflation concerns, negatively impacting bonds. U.S. President Donald Trump threatened further strikes against Iran following an exchange of fire, and stepped-up fighting between Russia and Ukraine pushed wheat prices near three-year highs. The U.S. dollar benefited from its safe-haven status, picking up against other currencies, with the euro slipping 0.2% to $1.16 and the dollar rising 0.1% against the yen to 159.9. Traders were pricing in a 65% chance of a Fed rate hike in September, up from 40% a week prior, and money markets fully priced in a further hike from the European Central Bank this month.
U.S. stock futures for the S&P 500 fell 0.6%, and Europe's STOXX 600 index dropped 0.7%. Hong Kong's Hang Seng decreased 1%, partly due to the lackluster debut of clothier Shein Global, whose shares slid 8%, valuing the company at less than a quarter of its pre-listing peak in 2022. Aneeka Gupta, a senior strategist at WisdomTree, warned that higher yields could strain tech companies heavily borrowing for AI investments, a sector that is a major driver of equity market growth. This spillover effect was contributing to the broader equity market decline observed.
Oil prices continued to rise as fears of further military exchanges between the U.S. and Iran increased. President Trump warned of hitting Iran "hard" after the U.S. conducted strikes on Larak Island and Iran retaliated against U.S. military targets in Jordan and the UAE. Despite this, Trump downplayed the clashes as a "little war," stating that Iran was "totally defeated militarily" and that new sanctions were taking a toll on its economy, as confirmed by U.S. Treasury Secretary Scott Bessent. Meanwhile, MediaTek shares soared nearly 10% after Nvidia announced a $3.5 billion investment in the Taiwanese chipmaker.
