Will the United States and Iran reach a formal nuclear agreement by the end of Q4 2026?
What moved
US and Iran reached a peace deal; Hormuz tanker traffic resumed and oil prices fell as supply risk eased.
The market transmission
The resumption of normal transit through Hormuz removes a material constraint on crude export flows from the Gulf. Oil weakness reflects pricing out of the supply premium that had built during any period of elevated transit friction. This is a durable shift if the deal holds; crude markets are now repricing on the assumption of uninterrupted Gulf flows.
What would change this
The magnitude of the price move depends on how much of a Hormuz premium existed before the deal. If markets had already discounted a high probability of eventual normalization, the move is smaller. The deal's durability and enforcement matter more than the headline; a temporary ceasefire that breaks will reprice the risk back in.
Directional leans
BRENT ▼ highWTI ▼ high