The Polymarket contract “Will the US announce a blockade on Iran by July 31?” saw a dramatic shift in odds over the past 24 hours, with the YES price plunging 20.5 percentage points from 50.5% down to 30.0%. This significant repricing signals a notable change in market sentiment or information flow.
Contrary to the price movement, whale activity diverged rather than confirmed the downward shift. Large traders bought a net $133K of YES contracts during the 24-hour window, with $238K in whale buy volume offsetting $105K in sell volume across 261 unique whales. This divergence between whale flow and price suggests that while the broader market pushed odds lower, substantial capital was still committed to the YES outcome.
Overall 24-hour volume on the market totaled $205K, contributing to a lifetime volume of $1.11M and involving 1,069 unique traders. The Polymarket Breaking YES price of 30.0% is notably higher than the Polydata on-chain mid-price of 22.5%, indicating some discrepancy between data sources.
This combination of a steep price drop alongside strong whale buying highlights a complex market dynamic. It underlines uncertainty and active repositioning in the contract as the July 31 deadline approaches.
| Market | Will the US announce a blockade on Iran by July 31? |
|---|---|
| Market ID | 2643405 |
| 24h price change | +20.5 pp |
| YES now (PM Breaking) | 30.0% |
| YES ~24h ago (est.) | 50.5% |
| YES (Polydata overview) | 22.5% |
| Whale net flow (24h) | $133K |
| Whale buy / sell (24h) | $238K / $105K |
| Unique whales (24h) | 261 |
| Volume 24h (PM) | $205K |
| Unique traders (Polydata) | 1,069 |
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.