The probability of Iran launching military action against a Gulf State on July 13 surged 37.5 percentage points in the past 24 hours on Polymarket, with the YES price jumping from 44.5% to 82.0%. This sharp repricing reflects a significant shift in market expectations about geopolitical tensions in the region.
Whale flow tracked closely with this price move, confirming the increased appetite for the YES side. The alignment of large trader activity and price movement suggests that informed participants contributed to the rapid rise in odds. Polymarket recorded $6K in volume over the same period, indicating moderate liquidity accompanying the shift.
This synchronized price and whale flow increase signals heightened conviction among market participants that military action by Iran against a Gulf State is increasingly probable on the specified date. The market’s quick adjustment underscores how prediction markets react swiftly to evolving geopolitical signals, incorporating new information into contract valuations.
| Market | Iran military action against a Gulf State on July 13? |
|---|---|
| Market ID | 2851418 |
| 24h price change | +37.5 pp |
| YES now (PM Breaking) | 82.0% |
| YES ~24h ago (est.) | 44.5% |
| YES (Polydata overview) | — |
| Whale net flow (24h) | $0 |
| Whale buy / sell (24h) | — / — |
| Unique whales (24h) | — |
| Volume 24h (PM) | $6K |
| Unique traders (Polydata) | — |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-13. Data: Polydata API v3. On-chain figures are public. Realized PnL is computed over resolved markets only and excludes open positions, so it is conservative versus the Polymarket UI. This is not investment advice.