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Holborn and St Pancras By-Election: Vote Share Margin of Victory

A by-election for the United Kingdom parliamentary constituency of Holborn and St Pancras is scheduled to be held on October 8, 2026, following the resignation of incumbent Sir Keir Starmer. This market will resolve according to the margin of victory between the top two candidates in this by-election. The “margin of …

As of 15 September 2026, "Labour 10-15%" leads at 64% implied probability. The event has traded $20 in total ($20 in the last 24h) with $408 of liquidity across 9 markets. Trading is due to close on 8 October 2026.

24h volume
$20
Total volume
$20
Liquidity
$408
Markets
9
8 Oct 2026
UKStarmerPoliticsElectionsUK ElectionsUK By-ElectionsGlobal ElectionsInternational Election Props

Chart, demo trading & order book

MarketLabour 10-15%
Yes63.5¢
24h Chg
Mkt Vol$20
live
Order bookYes
Market tradeslive · 6s
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Holders and activity

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Markets and probabilities

9 markets
How to read

The percentage is the implied probability of the outcome, between 0% and 100%. For mutually-exclusive markets the sum trends to 100% (no vig). The ▲/▼ arrow shows the change over the selected window (1h/24h/7d/30d) in percentage points (pp). Click a market to see its top holders (with average entry price and position change) and the latest trades.

Holborn and St Pancras By-Election: Vote Share Margin of Victory — Polymarket implied odds · Polytracker