The market on whether 30 ships will transit the Strait of Hormuz on any day by July 31, 2026, saw its YES price collapse by 53.5 percentage points within 24 hours, falling from an estimated 95.0% to 41.5% according to Polymarket Breaking data on July 14.
This dramatic repricing contrasts with whale activity, which saw $30K net inflow into YES contracts amid $57K in whale buy volume and $27K in sell volume across 72 unique whales. The net whale buying diverges sharply from the price drop, as flagged by the flow divergence indicator. Total 24-hour volume on Polymarket for this market was $39K, with lifetime volume at $93K and 167 unique traders participating overall.
Further highlighting the disconnect, the Polydata on-chain mid-price for YES contracts remains elevated at 96.4%, nearly double the Polymarket Breaking price. This suggests a split between the on-chain valuation and the off-chain order book or recent trades reflected in Polymarket Breaking.
The divergence between whale flow and the steep decline in price indicates conflicting signals about the market’s outlook on this event. While the broader market sharply reduced the probability of 30 ships transiting the Strait of Hormuz by the deadline, whales have been accumulating YES positions, potentially positioning for a different outcome than the prevailing market sentiment.
This tension between price and whale activity points to uncertainty or contested views on the likelihood of this scenario, underscoring the complexity of interpreting prediction market movements on geopolitical shipping events.
| Market | Will 30 ships transit the Strait of Hormuz on any day by July 31, 2026? |
|---|---|
| Market ID | 2820499 |
| 24h price change | +53.5 pp |
| YES now (PM Breaking) | 41.5% |
| YES ~24h ago (est.) | 95.0% |
| YES (Polydata overview) | 96.4% |
| Whale net flow (24h) | $30K |
| Whale buy / sell (24h) | $57K / $27K |
| Unique whales (24h) | 72 |
| Volume 24h (PM) | $39K |
| Unique traders (Polydata) | 167 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-14. 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.