The market question “Will 40 ships transit the Strait of Hormuz on any day by July 31, 2026?” saw a dramatic shift in implied probability on Polymarket over the past 24 hours, with the YES contract price dropping 31.5 percentage points from 69.0% to 37.5% as of July 12, 2026.
This sharp repricing signals a significant reassessment of the likelihood that the specified shipping activity will occur within the given timeframe. Interestingly, this price movement diverged from whale trading behavior, as the flow did not support the downward shift in odds. Despite the YES price plunging, whale activity did not align with the tape, indicating that large traders were not pushing the market lower alongside retail or other participants.
Polymarket’s reported 24-hour volume on this contract was $15K, reflecting moderate trading interest amid the volatility.
This combination of a steep price drop and opposing whale flow underscores uncertainty or conflicting views about the shipping transit event. It highlights the importance of monitoring both price action and large trader behavior to understand the evolving market consensus on geopolitical or logistical developments impacting the Strait of Hormuz.
| Market | Will 40 ships transit the Strait of Hormuz on any day by July 31, 2026? |
|---|---|
| Market ID | 2853082 |
| 24h price change | +31.5 pp |
| YES now (PM Breaking) | 37.5% |
| YES ~24h ago (est.) | 69.0% |
| YES (Polydata overview) | — |
| Whale net flow (24h) | $0 |
| Whale buy / sell (24h) | — / — |
| Unique whales (24h) | — |
| Volume 24h (PM) | $15K |
| Unique traders (Polydata) | — |
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.