Treasury Yields Breach 5.2% as Iran Deal Hopes Fade

The FT's reporting establishes the directional logic: as the probability of a deal fell, two markets that tend to move against each other moved the same way. Oil went up because Iran remains a meaningful supplier, and the prospect of sanctions relief coming off the table removes supply that traders had been pricing in. Bonds sold off for a related but distinct reason: higher oil sustains inflation, and sustained inflation reduces the Federal Reserve's room to cut rates.

The yield move is not simply a reaction to a single headline; it reflects a reassessment of how long the current risk environment holds.

Whether 5.2% acts as a ceiling or a floor is the question bond markets have not answered.