The probability of a US x Iran diplomatic meeting by July 31, 2026, surged 19.0 percentage points within 24 hours, rising from an estimated 42.0% to 61.0% on Polymarket. This significant repricing was supported by whale trading activity, which netted $55K into YES contracts during the same period.
Whales contributed $94K in buy volume against $39K in sell volume, engaging 144 unique large traders. Polymarket’s total 24-hour volume on this market was $77K, indicating that whales accounted for a substantial portion of recent activity. The market’s lifetime volume stands at $461K with 873 unique traders participating overall.
The alignment of whale flow and price movement suggests a consensus shift among large traders, reinforcing the market’s upward reassessment of a diplomatic meeting occurring by the specified deadline. This coordinated flow and price change highlight increased confidence or new information driving market participants to raise the odds.
Such a pronounced move combined with strong whale support signals a meaningful update in market sentiment toward this geopolitical event, reflecting evolving expectations about US-Iran relations within the prediction market community.
| Market | US x Iran diplomatic meeting by July 31, 2026? |
|---|---|
| Market ID | 2646850 |
| 24h price change | +19.0 pp |
| YES now (PM Breaking) | 61.0% |
| YES ~24h ago (est.) | 42.0% |
| YES (Polydata overview) | 57.0% |
| Whale net flow (24h) | $55K |
| Whale buy / sell (24h) | $94K / $39K |
| Unique whales (24h) | 144 |
| Volume 24h (PM) | $77K |
| Unique traders (Polydata) | 873 |
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.