HighIV Macro Policy & Sovereign Debt15 September 2026, Tuesday
US 10-year yield hits 5.04%, its highest level since July 2007
Oil-driven inflation concerns, the budget deficit and the pricing of rate hikes have pushed longer-dated yields to a 19-year high.
The US 10-year Treasury yield rose to 5.04% on 15 September, its highest level since July 2007, before easing to 4.95% on 16 September. According to the Fed's H.15 series, the 30-year yield peaked at 5.37% on 10 September and closed at 5.34% on 14 September. Over the same period the two-year yield climbed from 4.39% to 4.65%.
Three factors stand out behind the rise in yields: energy prices pushing headline inflation higher, the Treasury Borrowing Advisory Committee's warning of a 1.45 trillion dollar financing gap for fiscal years 2027–2028, and the market pricing in a Fed hike. Long-term dollar rates at this level directly tighten external borrowing costs for emerging economies and refinancing conditions for companies.
Talay assessment
Bottom line
The US 10-year yield reaching 5.04%, its highest since 2007, rests not on a single data point but on the overlap of energy-driven inflation, a widening financing gap and expectations of Fed tightening. As none of these three drivers is likely to resolve quickly, the most probable path is for extended-maturity dollar rates to stay elevated around 5%. The pullback to 4.95% on 16 September does not mean the pressure has dissipated.
Likely effects
- Emerging-market borrowingNegative1–6 months
Extended-maturity dollar rates at a 19-year high directly tighten the cost of eurobond issuance for emerging markets and the terms on which companies roll over foreign-currency debt; countries with large external financing needs are hit hardest.
- Türkiye external financingNegative1–6 months
The cost of rolling over external debt rises for the Turkish Treasury, banks and the corporate sector; high dollar rates can also weaken portfolio inflows, pushing up the risk premium on lira assets and domestic yields.
- US public financesNegative6 months+
The TBAC warning of a 1.45 trillion dollar financing gap for fiscal 2027–2028 means more debt supply; higher yields inflate interest costs and feed the deficit, creating a self-reinforcing loop.
Possibilities, ranked
- 1Elevated and volatile around 5%45%
Energy prices stay high and the Fed keeps its tightening tone; the 10-year yield fluctuates around 5% but does not move durably and markedly above its post-2007 peak.
Watch: Energy component of monthly CPI and demand indicators at Treasury auctions of extended maturities
- 2Sustained move above 5%30%
A fresh oil rally, signals of further Fed hikes and rising debt supply combine; the 30-year yield also surpasses its 5.37% peak of 10 September.
Watch: 30-year yield exceeding 5.37% and emphasis on additional hikes in Fed projections
- 3Marked pullback25%
Energy prices fall or growth and employment data weaken; markets scale back tightening expectations and extended-maturity yields decline.
Watch: A sustained fall in Brent and weakening employment data
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- US 30Y▲ 5.34%
Historical context