The Polymarket contract asking whether the US will announce a halt in Iran offensive operations by July 21 saw its YES price collapse 45.0 percentage points in the last 24 hours, dropping from an estimated 49.5% to 4.5% as of July 19.
This dramatic shift in market consensus came despite whale trading activity diverging from the price movement, signaling a disconnect between large-scale bets and the broader market sentiment. While the YES price plunged, whales did not increase their net exposure to YES contracts, indicating they did not reinforce the downward repricing.
Trading volume on this market reached $22K over the past 24 hours, reflecting active participation amid the sharp odds adjustment. The divergence between whale flow and price suggests that while retail or smaller traders pushed the YES probability sharply lower, larger traders remained cautious or skeptical of the pace and scale of the price move.
This split between whale behavior and market pricing highlights uncertainty and potentially conflicting information driving this contract. The combined picture of a steep decline in YES odds with whale flow opposing the price trend points to ongoing debate about the likelihood of a US halt in Iran offensive operations by the specified date.
| Market | US announces halt in Iran offensive operations by July 21? |
|---|---|
| Market ID | 2967835 |
| 24h price change | +45.0 pp |
| YES now (PM Breaking) | 4.5% |
| YES ~24h ago (est.) | 49.5% |
| YES (Polydata overview) | — |
| Whale net flow (24h) | $0 |
| Whale buy / sell (24h) | — / — |
| Unique whales (24h) | — |
| Volume 24h (PM) | $22K |
| Unique traders (Polydata) | — |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-19. 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.