The Polymarket contract “Will Shabana Mahmood be the next Chancellor of the Exchequer of the UK in 2026?” saw its YES price jump 50.1 percentage points in the past 24 hours, rising from 36.8% to 87.0% on July 16. This dramatic repricing reflects a significant shift in market sentiment about Mahmood’s prospects.
Whale trading activity confirmed the price move, with net inflows of $38K into YES contracts. Total whale buy volume reached $73K, more than double the $35K in sell volume, across 120 unique whale traders. This strong buying pressure from large players supported the rapid increase in implied probability.
Overall 24-hour volume on the market was $68K, close to the whale buy volume alone, indicating whales dominated trading activity during this surge. The lifetime volume for this market stands at $221K, contributed by 411 unique traders, showing broad participation but concentrated recent action among whales.
The alignment of whale flows with the sharp rise in YES price signals robust conviction from major traders driving the market’s reassessment. This repricing and whale buying suggest a growing consensus on Mahmood’s likelihood to become Chancellor in 2026, as reflected in Polymarket’s updated odds.
| Market | Will Shabana Mahmood be the next Chancellor of the Exchequer of the UK in 2026? |
|---|---|
| Market ID | 2632929 |
| 24h price change | +50.1 pp |
| YES now (PM Breaking) | 87.0% |
| YES ~24h ago (est.) | 36.8% |
| YES (Polydata overview) | 87.0% |
| Whale net flow (24h) | $38K |
| Whale buy / sell (24h) | $73K / $35K |
| Unique whales (24h) | 120 |
| Volume 24h (PM) | $68K |
| Unique traders (Polydata) | 411 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-16. 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.