An Iranian parliament member has warned of a possible war and urged public preparedness without causing panic. The statement has pushed Polymarket odds on a US declaration of war on Iran to 8.5% YES, up from 7% a week ago.
Market reaction
The US declaration of war on Iran by December 31 market rose 1.5 points in a week. With 251 days until resolution, traders are pricing in a growing possibility of military engagement. The April 30 contract remains static at 0.1% YES, meaning no immediate declaration is expected.
The Iranian regime fall by June 30 market rose to 8.5% YES from 6% a week ago. Traders see internal instability as a contributing factor to regime change, though the move is modest. The Iranian regime has historically survived periods of high pressure, but intra-regime tensions could shift that.
The US-Iran permanent peace deal by April 30 market collapsed to 2.5% YES, down from 61% a week ago. With only a few days left until the deadline, expectations for a diplomatic breakthrough are nearly gone.
On trading volume: the US declaration of war market sees $352 in daily USDC traded, and it takes $2,981 to move the odds by 5 points, making it relatively robust. The peace deal market, despite its high face value volume, is susceptible to large swings given the declining odds and looming deadline.
Why it matters
This development points to the fragility of the current ceasefire and the potential for renewed conflict. At 9¢, a YES share on a US war declaration pays $1 if it resolves, a potential 11x return. Traders betting on war must believe tensions will escalate significantly over the coming months.
What to watch
Statements from President Trump or Secretary Hegseth, and any Congressional moves toward a war declaration, will be the main drivers of these markets.
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Will The Us Officially Declare War On Iran| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| December 31, 2026 | 8.5% | — | — | Trade → |
| April 30, 2026 | 0.1% | — | — | Trade → |
| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| June 30 | 8.5% | — | — | Trade → |
| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| April 30 | 2.5% | — | — | Trade → |
| May 31 | 31.5% | — | — | Trade → |
| June 30 | 47.5% | — | — | Trade → |
