U.S. Treasury Yield Curve Steepens Sharply, 30-Year Matures Breaks 5%

The Federal Reserve's decision to hold steady is reshaping market judgments on the interest rate path behind a rare internal split.

The Federal Reserve kept interest rates unchanged on Wednesday, but this decision was met with four dissents, among which three district Federal Reserve Presidents—Cleveland Fed President Beth Hammack, Minneapolis Fed President Neel Kashkari, and Dallas Fed President Lorie Logan—explicitly opposed retaining the "bias towards ease" in the statement, catching the market off guard.

The two-year U.S. Treasury yield jumped about 11 basis points to 3.95% in a single day, marking the largest one-day increase on a Federal Reserve decision day since January 2022; the 30-year yield, meanwhile, broke through the 5% threshold for the first time since 2025. Concurrently, the interest rate swap market has priced in a 50% probability of the Federal Reserve raising interest rates in 2027.

This bond sell-off is not an isolated incident. Analysts point out that the ongoing tensions in the Middle East and the continued blockade of the Strait of Hormuz have driven up oil prices significantly, heating up inflation expectations and planting pressure in the bond market in advance. The hawkish dissent from the three voters further strengthened the market signal—that the consensus within the Federal Reserve on the easing path is crumbling, and the policy balance is tilting towards maintaining high interest rates for a "longer period" or even不排除加息"('not excluding the possibility of rate hikes') direction.

Short-end yields lead the decline, 30-year breaking 5% raises alarm

The bond sell-off is primarily focused on the short-end, with the two-year yield being the most sensitive to Federal Reserve policy expectations, rising about 11 basis points to 3.95% in a single day, marking the largest one-day increase since the Federal Reserve's decision day in 2022.

The 30-year yield breaking through 5% has equally drawn the market's high attention. Analysts point out that 5% is seen by some investors as the "psychological defense line" of the long-term bond market, having been breached twice in 2023 and 2025, but neither time was able to hold above it for more than a few trading sessions.

Gennadiy Goldberg, Head of U.S. Interest Rates Strategy at TD Securities, stated that 5% is "a psychological threshold that often reignites market concerns about bond vigilantes and higher future rates."

John Briggs, Head of Natixis North America Interest Rates Strategy, noted that the surge in front-end yields is the market's "acknowledgment" of the reality that the ongoing blockade of the Strait of Hormuz will keep energy prices high for an extended period, and the overall hawkish stance of the Federal Reserve further amplifies this trend.

Interest rate swap pricing: Hold steady for the rest of the year in 2027, or raise rates

Behind the bond market volatility, the pricing of the interest rate derivatives market has quietly undergone a structural shift.

The interest rate swap market currently implies a path where the Federal Reserve will keep interest rates unchanged for the remainder of the year and reflects the possibility of rate hikes in 2027, with the probability having risen to 50%. This contrasts sharply with the market's expectations of over two rate cuts this year before the escalation of war.

Priya Misra, Portfolio Manager at JPMorgan Asset Management, stated that the three dissents send a signal that there is a strong divergence among FOMC members on the risks on both sides of the dual mandate and policy responses. The market sell-off "is pricing in higher oil prices and the relatively low bar for rate hikes revealed by the dissents".