Christopher Harborne has donated over £24 million to Nigel Farage’s Reform UK, putting the party in a stronger financial position than some major parties. The odds of Keir Starmer being ousted as UK Prime Minister by June 30, 2026, sit at 38% YES.
Harborne’s donations include £3 million in March 2026 alone, at a time when new UK rules cap overseas donations. Starmer out by December 31, 2026 sits at 66.5% YES, a number that suggests traders see real doubt about Starmer’s ability to hold on through the year.
The spread from 38% to 66.5% YES over 184 days shows traders expect a catalyst in the second half of 2026. The largest single move was a 3-point spike, pointing to some volatility in how traders are pricing Starmer’s position.
Trading volume in the Starmer Out markets is at $29,563 in daily USDC traded, with just $906 needed to shift the June odds by 5 points. That thin order book means even modest trades can move the price significantly.
Reform UK’s ability to outspend major parties raises the financial and electoral pressure on Labour directly. Buying YES at 38¢ offers a potential 2.63x return if Starmer steps down by June 30. The bet depends on whether Reform UK’s spending translates into polling gains and whether Labour’s internal discipline holds.
Signals to watch: shifts in Reform UK polling numbers, Labour’s response to Harborne’s financial influence, and any public signs of leadership instability within Labour.
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Term Structure| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| June 30, 2026 | 38.5% | — | — | Trade → |
| December 31, 2026 | 66.5% | — | — | Trade → |
