Global fixed-income markets found footing on Thursday following a tactical rally across Asian and European sovereigns that eased pressures from a sharp, multi-day selloff which had driven long-term borrowing costs to multi-decade highs.
The move came after a surprise liquidity step by the U.S. Department of the Treasury on Wednesday. Washington said it would at minimum double its buyback operations for nominal 10-year to 30-year paper to $4 billion per session, an expansion that underwrote demand for off-the-run debt and helped tamp down panic tied to widening G10 fiscal gaps and heightened energy-supply risks in the Persian Gulf.
Long end recoups losses, led by Japan
Asian sovereigns anchored the relief rally, with Japanese Government Bonds at the forefront. The 10-year JGB yield slid from 2.896% to 2.842% in what the market recorded as its largest single-day rally since July 14, retreating decisively from a 30-year peak of 2.945% hit earlier in the week. The move in JGBs tracked an overnight decline in U.S. Treasuries, where 10-year yields fell to 4.647% and 30-year yields dropped to 5.198% in response to the Treasury's expanded buybacks.
Despite the relief, Japanese desks remain cautious. Market participants continue to price in the possibility of a Bank of Japan rate increase as soon as September, and fiscal uncertainty linked to consumption tax proposals, together with a widening July trade deficit fueled by record crude imports, constrain expectations for a sustained rally in Japanese bonds.
European curve shows split dynamics
In Europe, the benchmark 10-year German Bund yield eased to 3.251%, snapping a four-day run of increases and moving back from a 15-year high of 3.272% reached during Tuesday's turmoil. France's 10-year OAT also softened for the first time in five sessions, falling to 4.102% after earlier flirting with its highest levels since November 2008.
By contrast, the German two-year Schatz - a bellwether for rate-sensitive short-term securities - extended its climb for a fifth consecutive session, rising to 2.53% and marking its longest streak of yield gains since August 2025. This divergence between long and short maturities highlights a bear-flattening pattern on the German curve, as traders increasingly price in a hawkish European Central Bank stance.
Eurozone inflation remaining near 3% and swap markets assigning high odds to a 25 basis point ECB move next month have weighed on appetite for short-duration European debt, reinforcing structural pressure at the front end of the curve.
Term premium remains elevated amid Gulf transit uncertainty
Fixed-income strategists cautioned that the Treasury-backed pullback in long-end yields could be tactical rather than structural so long as disruptions to energy supply channels persist. Brent crude staying above $91 a barrel and shipping data showing depressed commodity vessel traffic through the Strait of Hormuz were cited as sustaining a higher term premium demanded by bondholders.
Market participants emphasized that as long as physical energy flows through the Persian Gulf are constrained, the recent easing in long-dated yields should be viewed as a temporary reprieve rather than the start of a durable decline in government borrowing costs.
Market focus shifts to central bank signals
With the immediate effects of the Treasury's buyback announcement unfolding across global duration markets, traders are now turning to upcoming central bank commentary for guidance. Attention is coalescing around remarks from Fed Chair Kevin Warsh at the Jackson Hole Symposium for indications on how policymakers intend to balance persistent cost-push inflation against volatility in sovereign debt markets.
The interplay between fiscal backstops, central bank policy paths, and energy-supply risk will remain central to how sovereign curves evolve in the near term.