10-Year Treasury Yield Breached 5% on Sept. 15 as Oil Spiked

On Sept. 15, 2026, the benchmark 10-year U.S. Treasury yield breached 5% as oil prices spiked, Reuters reported. Yield is the annual return on government bonds, an anchor for mortgages and savings rates. Higher oil can fuel inflation, pushing long-term borrowing costs up for households and businesses.