Asia markets fall as Treasury yields climb and Iran tensions linger

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- Japan saw its Nikkei 225 fall 1.29% and the Topix slide 1.45% as regional equities slipped.
- South Korea' Kospi dropped 0.69% and the small‑cap Kosdaq fell 2.23% amid the sell‑off.
- U.S. Treasury yields rose, with the 30‑year Treasury hitting 5.197%—the highest since July 2007—before easing to 5.174%.
- Japanese government bond yields climbed, pushing the 5‑year JGB to a record 2.041% while the 30‑year JGB fell back to 4.122% after record highs.
- S&P 500 closed down 0.67% at 7,353.61, marking a third straight losing day, while the Nasdaq Composite and Dow Jones also slipped.
Why it matters: Asian equity investors see 1‑2% index drops as US Treasury yields climb to 5.197% and Japanese 5‑yr bonds hit a 2.041% record, tightening global borrowing costs and squeezing duration‑sensitive portfolios.

