Will the United States and Iran reach a formal nuclear agreement by the end of Q4 2026?
What moved
US and Iran reached a deal; oil prices fell as supply resumed transit through the Strait of Hormuz.
The market transmission
A resolution lifting the threat of Hormuz closure removes a tail risk that had supported oil valuations. Supply resumption into an already-well-supplied market, combined with the elimination of sanctions-related supply constraints, shifts the marginal price driver from geopolitical scarcity back to fundamental balance. Oil weakness follows.
What would change this
The magnitude of the price move depends on how much of this outcome was already priced into forward curves. If markets had assigned material probability to a lasting Hormuz closure or prolonged sanctions, the repricing could be sharp. If the deal was widely expected, the move will be muted. The actual supply flow restart matters less than the signal it sends: that the tail risk of sustained Hormuz disruption is off the table.
Directional leans
BRENT ▼ moderateWTI ▼ moderate