30-Year Treasury Yield Tops 5% as Iran Tensions Lift Rates

The 30-year U.S. Treasury yield climbed above 5% on Wednesday as investors reacted to the Iran conflict and concerns about oil-driven inflation. The 10-year reached a nine-month high. The 2-year and 10-year each rose more than six basis points, while the 30-year added five basis points.

Traders attributed the move to worries that higher oil prices tied to the conflict could feed into broader inflation and keep Federal Reserve policy restrictive for longer. Market-implied probabilities show about a 37% chance of a rate increase by year-end and roughly a 3% chance of a cut.

The 5% level has served as a ceiling for the 30-year over the past two years, with failed tests in late 2023 and early 2025. A sustained break above 5% would push yields into territory not seen since the mid-2000s; last year’s peak near 5.17% is the next notable level.

Analysts noted higher long-term yields raise mortgage rates, increase corporate borrowing costs and boost the interest the U.S. government pays to roll over debt. They pointed out that the S&P 500 has tended to pull back when the 30-year yield approaches or exceeds 5%.

Market technicians identified technical signs supporting the advance. One analyst highlighted a wedge breakout on the 30-year, and the 2-year approached the 4% area. The analyst compared the current setup to 1968, when Treasury yields rose sharply before a recession.

Economist Peter Schiff warned that rising long-term borrowing costs could have wider consequences given high U.S. debt levels, adding that yields may accelerate as they move higher.

Investors are watching incoming inflation readings and geopolitical developments for signals on how quickly any energy-driven price changes show up in inflation and affect the path of interest rates.