Iran war odds: peace deal, Strait of Hormuz, and nuclear predictions
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Key Highlights
- The US and Iran reached a framework deal on June 14, 2026 to end the war, with a formal signing scheduled for Friday June 19 in Geneva. It extends the April ceasefire by a 60-day window to negotiate a permanent settlement, mediated by Pakistan and Qatar.
- The deal commits the US to lift its naval blockade and Iran to reopen the Strait of Hormuz. As of June 16 the strait is still physically closed: mines remain, and full shipping traffic could take weeks to months even after the signing.
- Prediction markets on Polymarket and Kalshi turn the open questions into live odds: whether a permanent peace deal holds, when Hormuz traffic recovers, whether a nuclear agreement follows, and where oil settles.
What will move Iran war odds next
- Whether the peace deal is signed and holds. A framework was agreed June 14; the formal signing is set for June 19 in Geneva, and Israel, which is not a party, is the clearest risk to the truce.
- When the Strait of Hormuz reopens. The deal lifts the US blockade and reopens the strait, but mines remain and full shipping traffic could take weeks to months to recover.
- Whether a nuclear agreement follows. The 60-day talks cover Iran's enriched-uranium stockpile, future enrichment limits, and sanctions relief; the ballistic-missile program was dropped from the agenda.
- Whether the regime holds and who leads it. Mojtaba Khamenei, named Supreme Leader in March, has not appeared in public, so the succession question stays live.
- Where oil settles. Crude fell on the deal news but remains above its pre-war level, and the Hormuz reopening is the key swing factor.
How prediction markets price the Iran deal
Ceasefire & Diplomacy: Polymarket prices a permanent US-Iran peace deal across July, August, and year-end horizons, plus whether the conflict formally ends by June 30. Both Polymarket and Kalshi carry a US-Iran nuclear deal market, and Polymarket adds an enrichment-halt contract, so the diplomacy track is the most heavily traded part of the page.
Strategic Targets & Hormuz: For the question of when the Strait of Hormuz reopens, Polymarket prices traffic returning to normal by end of June, July, and year-end, plus whether Trump lifts the US naval blockade by June 30. Kalshi prices the recovery in transit calls, a cross-platform read on the single biggest oil-supply variable.
Oil Prices: Polymarket crude-oil threshold contracts let traders express where front-month oil settles by the end of June, from a fall toward the 70-dollar floor on a durable peace to a war-premium spike. These are the cleanest oil-price reads tied directly to Hormuz risk.
Regime Change: Near-term and year-end contracts price whether the Iranian regime falls, whether Mojtaba Khamenei holds the leadership he was handed in March, and whether exiled figure Reza Pahlavi returns to lead. The succession question stays live while Mojtaba remains unseen.
Military Escalation: For traders asking whether the war reignites, Polymarket prices a US invasion before 2027, whether Kharg Island leaves Iranian control, and whether a European power strikes Iran. All three stayed low through the air-only campaign and the ceasefire.
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