
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · By Jan 1, 2040
Loading selected book…
—
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Which of these franchises will be present at the Universal Studios park Universal United Kingdom at opening?
Will United Kingdom join BRICS before 2030?
Next government of the United Kingdom?
Will Ye visit The United Kingdom this year?
Will the United Kingdom become more authoritarian in 2026?
How will the United Kingdom be classed by Regimes of the World in 2026?
Rules
If the United Kingdom has joined the EU by Jan 1, 2040, or the date that the country will officially join per its accession treaty is Jan 1, 2040, then the market resolves to Yes.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/kalshi/kxeuuk-25AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+17 more outcomes
+28 more outcomes
+21 more outcomes
+1 more outcomes
+28 more outcomes