US Services PMI Reprices Treasury Yields: Duration Pressure Returns To African Eurobonds

The preliminary August US services PMI rose to 56.8 from 54.6 in July, its strongest reading since December 2024, while the composite output index increased to 56.0. The activity surprise was followed by higher Treasury yields, with the 2-year near 4.223%, the 10-year near 4.724% and the 30-year near 5.266% on August 22. The move challenges expectations of near-term Federal Reserve easing and lifts the global risk-free discount rate.

For African hard-currency sovereign and corporate debt, the first transmission is through duration rather than a country-specific fundamental shock. Higher US yields raise the all-in yield demanded on African Eurobonds, with the longest-dated maturities carrying the greatest price sensitivity and convexity exposure. The pressure is most direct in benchmark-duration sovereign bonds and in corporate issuers that must refinance external debt at a higher base rate, even if credit spreads remain unchanged.

The distinction between the front end and the long end matters for African portfolios. A rise in the 2-year yield points to reduced confidence in immediate Fed easing, while the higher 10-year and 30-year yields increase the refinancing premium embedded in long-dated African hard-currency liabilities. That can slow spread compression and leave weaker credits more exposed to duration-driven price declines than shorter-maturity instruments, where pull-to-par is a stronger offset.

The next conditional signal is whether the stronger services reading produces a sustained repricing across the Treasury curve. If higher yields persist, financing conditions for African sovereign and corporate Eurobonds would tighten through both discount rates and rollover costs; if the move remains concentrated in the initial data reaction, the effect would be more limited to duration-sensitive paper.