The US has launched Operation ‘Economic Fury,’ targeting Iran with economic sanctions rather than military escalation. The Polymarket contract on a US declaration of war on Iran by December 31, 2026, sits at 7.5% YES, down from 8% a week ago.

Market reaction

The shift to sanctions has pushed war-related contracts lower. The April 30 market is at 0.9% YES with 14 days left. The term structure shows a 7-point gap between the April 30 and December 31 contracts, meaning traders price any meaningful escalation risk later in the year, not now.

Trading volume is modest: $218 in USDC traded over the last 24 hours. It takes over $2,000 to move the odds by 5 percentage points, so the market is more stable than the thin volume might suggest. The largest recent price move was small.

Why it matters

Operation ‘Economic Fury’ represents a shift from kinetic to economic warfare. The US is trying to pressure Iran financially without direct military engagement. This lowers the near-term probability of a formal war declaration, though it doesn’t eliminate the possibility if Iran responds in ways that provoke further action. At 7.5¢, a YES share in the December 31 market pays $1 if war is declared, a 13.3x return. For that bet to make sense, you’d need to expect significant military mobilization or a diplomatic breakdown soon.

What to watch

Statements from US Congress, changes in US-Iran diplomatic contacts, Iranian military activity, and new sanctions announcements could all move these contracts.

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