The probability that Russia will capture Kostyantynivka by July 31 surged 26.0 percentage points over the past 24 hours on Polymarket, climbing from 33.5% to 59.5%. This dramatic repricing occurred alongside aligned whale trading activity, with $12K net flow into YES positions and $26K in whale buy volume outpacing $13K in sells. Seven dozen unique whales participated in this trading window, signaling substantial engagement from large traders.
Despite the surge reflected in the Polymarket YES price, the Polydata on-chain mid-price shows a notably lower probability at 29.0%, indicating some divergence between reported market prices and underlying on-chain data. Total 24-hour volume on the market reached $22K, contributing to a lifetime market volume of $162K across 535 unique traders.
The coordinated move by whales and the tape suggests a reassessment of the likelihood that Russia will take Kostyantynivka by the end of July. The substantial increase in odds combined with strong whale buying indicates growing market conviction around this outcome, even as on-chain data presents a contrasting view.
| Market | Will Russia capture Kostyantynivka by July 31? |
|---|---|
| Market ID | 2608935 |
| 24h price change | +26.0 pp |
| YES now (PM Breaking) | 59.5% |
| YES ~24h ago (est.) | 33.5% |
| YES (Polydata overview) | 29.0% |
| Whale net flow (24h) | $12K |
| Whale buy / sell (24h) | $26K / $13K |
| Unique whales (24h) | 70 |
| Volume 24h (PM) | $22K |
| Unique traders (Polydata) | 535 |
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.