The Polymarket contract on a US-Iran diplomatic meeting by July 31, 2026, saw its YES price fall 17.5 percentage points over the past 24 hours, sliding from 44.0% to 26.5%. This sharp drop in market-implied probability comes despite whales net buying $48K worth of YES contracts during the same period.
Whale activity was robust, with $87K in buy volume against $39K in sells across 121 unique whales. Total 24-hour volume on the market reached $68K, within a lifetime market volume of $655K and participation from 1,038 unique traders.
Notably, whale flow diverged from the price move, indicating a disconnect between large trader positioning and price action. While whales accumulated YES positions, the market price declined, signaling possible pressure from retail or other segments outweighing whale demand. Additionally, the Polymarket Breaking YES price of 26.5% is significantly lower than the Polydata on-chain mid price of 57.0%, highlighting a discrepancy between the two pricing sources.
This divergence between whale flow and price suggests uncertainty or mixed signals about the likelihood of a US-Iran diplomatic meeting by the deadline.
| Market | US x Iran diplomatic meeting by July 31, 2026? |
|---|---|
| Market ID | 2646850 |
| 24h price change | +17.5 pp |
| YES now (PM Breaking) | 26.5% |
| YES ~24h ago (est.) | 44.0% |
| YES (Polydata overview) | 57.0% |
| Whale net flow (24h) | $48K |
| Whale buy / sell (24h) | $87K / $39K |
| Unique whales (24h) | 121 |
| Volume 24h (PM) | $68K |
| Unique traders (Polydata) | 1,038 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-12. 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.