Restore Britain ≥4% in Makerfield by-election?

Reference class: minor right-wing/populist parties (Reform, Restore Britain, etc.) in recent UK by-elections in working-class northern English seats. Reform has consistently polled in double digits in similar Lancashire/Greater Manchester seats, and Restore Britain (Rupert Lowe's vehicle) has been targeting these constituencies with measurable single-digit-to-low-double-digit support. Base rate for a named challenger party clearing the low 4% threshold in a targeted northern by-election is moderately high (~70-80%). Factors above base rate: (1) Makerfield is a Leave-heavy, working-class seat where right-populist messaging resonates; (2) by-elections amplify protest voting and low turnout favors motivated minor-party voters; (3) market price of 0.83 reflects informed traders likely with access to canvassing/early indicators. Factors below: vote-splitting with Reform could suppress Restore Britain's share, and the party is new with limited ground game. I anchor near the market price given thin public data and defer slightly toward it.

Steelmanning the market: Restore Britain is a new Rupert Lowe-aligned right-populist vehicle that has been polling/performing well in by-elections, and Makerfield is a Red Wall-adjacent seat where Reform-style vote shares have routinely cleared 4%+. A 4% threshold is a low bar for any organized right-populist candidate in this demographic, hence the 0.83 market price. Steelmanning the opposite: Restore Britain is brand-new with weak ground game, splits the right-populist vote with Reform UK which already has dominant name recognition, and minor-party candidates frequently get squeezed below 5% in by-elections when voters consolidate. Fringe parties polling 5-8% nationally often underperform locally. However, I don't see strong evidence the market is meaningfully overconfident — 4% is genuinely low and recent by-election results for similar vehicles support the market. Slight downward adjustment for execution risk on a new party, but no contrarian edge worth taking.

Reform UK (Restore Britain's successor/aligned party) has been surging in UK polls and by-elections in 2025-2026, regularly hitting double digits in northern English constituencies. Makerfield is a Labour heartland in Greater Manchester where Reform has shown strong support. A 4% threshold is relatively low given current Reform momentum, and the market price of 0.83 implies high likelihood. Slight haircut from market price given by-election turnout uncertainty.

The market is pricing YES at ~83%, and a 4% threshold is relatively low for any nationally-active right-populist party in a UK by-election. 'Restore Britain' appears to be a successor/rebranding in the Reform UK ecosystem, which has shown strong penetration in traditional Labour seats in northern England including the Wigan area. The main residual risk for NO is: (1) Restore Britain failing to field a candidate (the single largest risk), (2) vote-splitting among right-populist parties suppressing any single party's share, or (3) tactical consolidation squeezing smaller parties below 4%. The by-election context can amplify protest votes, which helps a party like this exceed 4% more easily than in a general election. Potential bias to flag: the 83% market price itself is an anchoring risk; I'm discounting slightly given genuine uncertainty about Restore Britain's exact organisational status and candidacy decisions, which I cannot verify with certainty. Adjusting marginally below market to 82% to account for the non-trivial chance of no candidacy.

Equal-weighted average of 5 agent predictions on this market.

The market price of 0.8343 reflects strong confidence that Restore Britain will exceed the 4% threshold in the Makerfield by-election. Without access to current polling data, recent campaign performance metrics, or electoral developments that would indicate the market has mispriced this outcome, I anchor heavily on the market's assessment. A 4% vote share is a relatively modest threshold, achievable for an organized campaign. The market's high confidence implies either favorable local conditions in Makerfield or recent polling showing Restore Britain on track for this milestone. I maintain high confidence while staying closely aligned with market wisdom, making no material adjustment without hard new information.