The probability that Shabana Mahmood will become the next Chancellor of the Exchequer of the UK in 2026 rose sharply by 45.0 percentage points over the past 24 hours, climbing from 6.3% to 51.3% on Polymarket. This dramatic repricing reflects a substantial shift in market sentiment around Mahmood’s chances.
Whale activity aligned closely with this price move, with net inflows of $22K into YES contracts driving the surge. Whale buy volume reached $50K, while sell volume was $27K, indicating stronger buying pressure from large traders. A total of 110 unique whales participated in the market during this period.
Overall 24-hour volume on Polymarket for this question was $47K, contributing to a lifetime market volume of $170K, with 340 unique traders having engaged in the contract. The confluence of rising prices and whale buying suggests coordinated conviction behind the market’s reassessment of Mahmood’s prospects.
This combined price and flow pattern signals a significant realignment in expectations, with the market now pricing a better-than-even chance that Shabana Mahmood will hold the Chancellor position by 2026. Whale support indicates that this is not a fleeting move but backed by substantial capital, making it a notable development in UK political prediction markets.
| Market | Will Shabana Mahmood be the next Chancellor of the Exchequer of the UK in 2026? |
|---|---|
| Market ID | 2632929 |
| 24h price change | +45.0 pp |
| YES now (PM Breaking) | 51.3% |
| YES ~24h ago (est.) | 6.3% |
| YES (Polydata overview) | 53.2% |
| Whale net flow (24h) | $22K |
| Whale buy / sell (24h) | $50K / $27K |
| Unique whales (24h) | 110 |
| Volume 24h (PM) | $47K |
| Unique traders (Polydata) | 340 |
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.