Shipping traffic through the Strait of Hormuz has slowed following Iran's threats of retaliation against U.S. military actions in the region. The disruption pushed crude oil higher, triggering a rapid repricing of inflation expectations across the Treasury curve. Ten-year yields rose several basis points as investors priced in persistent energy-driven price pressure.
Approximately 21 million barrels per day—one-fifth of global supply—transit the Strait. Any sustained blockage directly constrains energy availability and forces central banks to wrestle with conflicting policy signals: oil-driven inflation pushing yields higher while growth concerns pull them lower. This dynamic creates duration risk for bond portfolios, particularly those positioned for a near-term rate-cut cycle.
Iran's explicit threats to interfere with oil tankers if U.S. aggression continued widened emerging-market credit spreads, especially across Middle Eastern sovereigns. The risk-off move appeared across equities: the Dow Jones Industrial Average fell 0.5 percent to 53,414 and the S&P 500 dropped 0.4 percent to 7,719. Typically, geopolitical shocks drive flows into core U.S. Treasuries, but oil-spike inflation concerns temper that flight-to-safety demand, creating a flattening bias on the curve.
