“Will Russia capture Kostyantynivka by July 31?” YES price jumps 22.5 pp to 55.5% on Polymarket

The Polymarket prediction market question “Will Russia capture Kostyantynivka by July 31?” saw its YES contract price surge by 22.5 percentage points over the past 24 hours, climbing from an estimated 33.0% to a current 55.5%.

This sharp revaluation came alongside significant whale participation, with 86 unique whales transacting $37K in buys against $17K in sells, resulting in a net whale inflow of $20K into the YES side. The 24-hour total market volume stood at $34K, reflecting active trading interest concentrated in the last day.

Whale behavior aligned closely with the price move, confirming the market’s shift in sentiment rather than opposing it. This coordination between large traders and price action underscores confidence in the updated odds.

Notably, the Polymarket YES price of 55.5% contrasts with the Polydata on-chain midprice of 43.5%, signaling a divergence between the market’s latest traded price and the broader on-chain liquidity midpoint.

Since its inception, the market has attracted $178K in total volume from 549 unique traders, indicating sustained engagement beyond the recent spike. The confluence of a sizable price jump and whale net buying suggests a strong reevaluation of the likelihood that Russia will capture Kostyantynivka by the stated deadline.

This combined price and flow dynamic points to increased conviction in the YES outcome, reflecting either new information or shifting trader perceptions driving the market’s upward repricing.

View this event on Polymarket →

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.