US 30-Year Yield Hits Highest Yield in Two Decades as Iran War Reignites Inflation Fears
The US 30-year Treasury yield has surged past 5%, nearing its highest level in roughly two decades as the Iran war raises inflation fears. The 30-year yield is now 8 bps away from a new 18-year high. pic.twitter.com/UQgGB4AGiL — Jim Bianco (@biancoresearch) May 4, 2026 Notably, yields rose across the curve. Yesterday, the 2-year and 10-year notes each climbed more than 6 basis points. The 30-year added 5 basis points, while the 10-year hit a 9-month high. Bond Rout Deepens as 30-Year Yield Pierces Key 5% Level According to the Global Markets Investor, the 5% mark on the 30-year has acted as a ceiling for two years. It was tested in late 2023 and early 2025, but failed to sustain above this level both times. The post added that the S&P 500 pulled back whenever yields approached or exceeded 5%. A sustained break above 5% would push yields into territory unseen in nearly two decades. The 2023 peak near 5.17% sits as the next major test. “At 5%, government bonds become attractive enough to pull capital away from equities, while simultaneously raising borrowing costs for mortgages, corporate loans, and US government debt,” Global Markets Investor added. The Iran conflict has accelerated the move. Higher oil prices threaten to