US Treasury Yields Rise as Oil Prices Increase After Trump Rejects Iran Strait of Hormuz Offer

Treasury market data showed the 10-year yield climbing 8 basis points to 4.21 percent while the 2-year note yield reached 4.38 percent, coinciding with a 2.8 percent gain in front-month Brent futures. Volume in 10-year futures exceeded the prior five-day average by 22 percent according to CME records. The move occurred without any scheduled Federal Reserve or Treasury auction events.

The price action aligns with documented patterns in which Strait of Hormuz risk premia lift energy costs and simultaneously compress duration demand. Primary records from the Energy Information Administration indicate that 21 percent of global oil liquids transited the strait in 2025; any sustained closure threat raises delivered crude costs for Asia and Europe. Higher oil prices feed directly into US CPI components tracked by the Bureau of Labor Statistics.

State calculations remain consistent with prior episodes: the United States maintains maximum-pressure sanctions while Iran offers limited navigation concessions to test sanctions relief. Treasury issuance data through August 2026 already projected $1.9 trillion net supply for fiscal year 2027, amplifying sensitivity to any demand shock. Foreign official holdings of Treasuries fell $47 billion in the latest TIC release.

Market pricing now embeds a 65 percent probability of at least one 25-basis-point Fed cut by March 2027 if oil remains above $75, per CME FedWatch options. Sustained yield elevation would raise US debt-service costs by an estimated $28 billion annually per 50-basis-point increase in the 10-year average.