Will the US announce a blockade on Iran by December 31?
45%
Real price history (past month), from Polymarket. Down-sampled to 24 points.
What the market is pricing
The market is trading at roughly even odds that such an announcement will occur, suggesting traders see a meaningful but uncertain chance of this outcome. The probability fell slightly over the past day, though it has risen notably over the week, indicating recent swings in how traders are weighing the likelihood of a formal US blockade announcement.
How this market resolves
This market resolves Yes if the US government or an authorized representative publicly and officially announces a naval blockade on Iran, Iranian ports, or ships in the Strait of Hormuz between now and December 31, 2026. Otherwise it resolves No.
| Implied probability (Yes) | 45% |
|---|---|
| 24h change | -2 pt |
| 7d change | +16 pt |
| Market volume | $244K |
| Resolves by | 2026-12-31 |
| Source | Polymarket ↗ · as of 2026-07-10 |
What could move it
- An official announcement from US government channels would directly trigger resolution either way; absence of such a statement through the end date would confirm a No outcome.
- Geopolitical developments affecting US–Iran tensions could shift market pricing, but only a formal public announcement meets the resolution criterion.
This is an implied probability from a real-money prediction market (Polymarket), shown as information — not a forecast we endorse and not financial or trading advice. Markets can be thin or move fast; always check the source. Odds ≠ advice.