The market on whether Ed Miliband will be the next Chancellor of the Exchequer of the UK in 2026 saw a dramatic shift as the YES price dropped 49.5 percentage points in 24 hours, falling from 68.5% to 19.0% according to Polymarket Breaking data on July 15. This sharp repricing was accompanied by whale activity that diverged from the price trend: despite the plunge, whales net bought $25K of YES contracts, with $43K in buy volume against $19K in sell volume across 108 unique whales.
The overall 24-hour volume on Polymarket for this contract was $38K, contributing to a lifetime market volume of $61K and involving 248 unique traders. Notably, the Polymarket Breaking YES price of 19.0% contrasts sharply with Polydata’s on-chain mid-price of 60.5%, highlighting a significant discrepancy between market sentiment on-chain and Polymarket’s live price feed.
The divergence between whale flow and market price suggests conflicting signals: while the broader market sharply downgraded Miliband’s chances, large traders increased their exposure to the YES outcome.
This repricing and whale flow pattern underline a complex market environment where price declines do not necessarily reflect the direction of large trader conviction. The gap between on-chain and Polymarket prices further points to fragmentation in how this political outcome is valued across different data sources.
| Market | Will Ed Miliband be the next Chancellor of the Exchequer of the UK in 2026? |
|---|---|
| Market ID | 2632926 |
| 24h price change | +49.5 pp |
| YES now (PM Breaking) | 19.0% |
| YES ~24h ago (est.) | 68.5% |
| YES (Polydata overview) | 60.5% |
| Whale net flow (24h) | $25K |
| Whale buy / sell (24h) | $43K / $19K |
| Unique whales (24h) | 108 |
| Volume 24h (PM) | $38K |
| Unique traders (Polydata) | 248 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-15. 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.