Global sovereign bond markets remained largely frozen Monday as the U.S. signaled a major escalation in economic pressure against Iran, prompting investors to reassess risk exposure.
Sovereign debt desks across Europe and Asia paused activity, with yields on core European benchmarks holding steady after a weekend of heightened rhetoric from Washington. The two-year German Schatz yield was flat at 2.838%, while the 10-year Bund yield held at 3.256% and the 30-year yield remained unchanged at 3.762%. In France, the 10-year OAT yield was steady at 4.128%, and Italy’s 10-year BTP yield traded near 4.092%. Japan’s 10-year JGB yield hovered at 2.881%.
The U.S. Treasury is preparing what it described as "the greatest financial offensive ever marshalled" against Iran, according to statements from Washington over the weekend. The measures are expected to be detailed in a press conference scheduled for 1:00 p.m. EDT Monday. Tehran responded by threatening to "completely halt all energy exports originating from the Persian Gulf" if the economic pressure continues, raising concerns about supply disruptions in a critical chokepoint.
Brent crude futures eased roughly 1.5% to trade around $91.80 a barrel Monday, reflecting the immediate market reaction to geopolitical tensions. The decline followed a weekend of escalating rhetoric and came as global bond markets experienced a second consecutive week of losses.
U.S. Treasury Secretary Scott Bessent said sovereign yields do not reflect underlying fundamentals and suggested the government could expand its planned bond buyback operations beyond the newly announced $4 billion per issue ceiling. The U.S. national debt crossed $40 trillion for the first time last week, underscoring the scale of fiscal pressures amid the geopolitical standoff.
The Federal Reserve’s Jackson Hole Economic Policy Symposium concluded Friday with a keynote address by Chair Kevin Warsh, though no immediate policy signals were tied to the Iran-related developments. The Fed’s last policy decision featured a divided 9-3 vote among committee members, reflecting ongoing debates over the balance between inflation control and growth risks.
Markets will monitor the Treasury’s planned announcement for further details on the scope and timing of the sanctions, which could influence global risk sentiment and energy flows through the Strait of Hormuz.
