The probability that the US and Iran will hold a diplomatic meeting by July 31, 2026, rose sharply by 19.0 percentage points over the past 24 hours, climbing from 41.5% to 60.5% on Polymarket.
This surge was accompanied by strong whale activity, with 141 unique whales contributing to a net $49K inflow into YES contracts. Whale buy volume outpaced selling by $49K, totaling $84K in purchases against $35K in sales. Overall 24-hour trading volume on the market was $76K, indicating that whales dominated the recent price action.
The market’s lifetime volume stands at $450K with 871 unique traders, showing a well-established base of participants. The alignment between whale flow and price movement signals consensus among large traders and the broader market on the increased likelihood of a diplomatic meeting.
This coordinated jump in both price and whale buying suggests growing conviction in a positive diplomatic outcome between the US and Iran, reflecting either new information or shifting sentiment among informed traders. The market now prices this event as more probable than not, a notable shift from the prior near-even odds.
| Market | US x Iran diplomatic meeting by July 31, 2026? |
|---|---|
| Market ID | 2646850 |
| 24h price change | +19.0 pp |
| YES now (PM Breaking) | 60.5% |
| YES ~24h ago (est.) | 41.5% |
| YES (Polydata overview) | 57.0% |
| Whale net flow (24h) | $49K |
| Whale buy / sell (24h) | $84K / $35K |
| Unique whales (24h) | 141 |
| Volume 24h (PM) | $76K |
| Unique traders (Polydata) | 871 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-10. 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.