US 10-Year Yield Reaches 4.81%: Duration Pressure Extends Across African Sovereign Eurobonds

The U.S. 10-year Treasury yield reached approximately 4.81% intraday on September 2, its highest level since November 2023, before easing. The move formed part of a broader global bond sell-off amid higher oil prices and increased expectations of a September Federal Reserve rate increase, with contemporaneous market-implied probability reported at roughly 68%. A Reuters poll also pointed to a firm dollar over coming months.

The transmission into Africa is through the hard-currency discount rate. Higher U.S. risk-free yields raise the Treasury component of African Eurobond yields, with the greatest duration sensitivity in long-dated sovereign issues. A firmer dollar compounds the pressure by increasing the local-currency burden of external debt service and tightening the refinancing channel for issuers that depend on future dollar-market access. The move therefore affects both valuation and funding capacity, rather than only secondary-market sentiment.

The exposure is most acute in long-maturity African sovereign Eurobonds, including Senegal’s external bonds, where duration risk now interacts with separate restructuring and refinancing uncertainty. Credits without an event-specific restructuring process still face the global-rate channel, but Senegal combines that discount-rate pressure with questions around external creditor treatment and future market access.

The next pricing inputs are U.S. inflation and employment data and subsequent Federal Reserve guidance. If those inputs reinforce expectations of tighter policy, long-dated African hard-currency bonds remain conditionally exposed to further duration repricing; a softer policy signal would reduce the Treasury-rate component of that pressure without resolving issuer-specific credit risks.