Will PSOE win the most seats in the 2026 Spanish general election?
Gotcha risk
Low1 of 4 factors flagged
Watch for: The rules clearly specify how seats and votes will be counted and attributed across specific regional coalitions and lists (such as PSC counting for PSOE).
Read the full assessment
The rules clearly specify how seats and votes will be counted and attributed across specific regional coalitions and lists (such as PSC counting for PSOE). Ties are explicitly addressed through vote totals and alphabetical ordering, and an official backup source—the Spanish Ministry of the Interior—is provided if reporting is ambiguous. Holders should note that early or hypothetical coalitions not explicitly listed follow official proclamation names, and in the event of an unbroken tie, alphabetical order is used rather than a dead heat split.
- Resolver
- Low
- Timing
- Low
- Wording
- Low
- Exceptions
- Medium
AI-generated analysis · google/gemini-3.7-flash ·
Current price
18%
chance▲ +2 pts · 24h
Why it moved
No big moves in the last 7 days.
Resolution rules
Legislative elections to elect the 350 members of the Congress of Deputies of Spain are scheduled to take place on November 29, 2026. This market will resolve according to the political party that wins the greatest number of seats in the Congress of Deputies of Spain as a result of this election. If the results of the specified election are not definitively known by November 30, 2027, 11:59 PM ET, this market will resolve to “Other”. Parties will be ranked by the number of seats won by their electoral lists (candidaturas) nationwide in this election, attributed as set out below. If two or more parties are tied on seats, ties will be broken by the total number of valid votes received by their lists nationwide, with higher vote totals ranking higher. If parties remain tied, ties will be broken by alphabetical order of the listed party names. This market will resolve to the party that occupies the highest finishing position after applying this ranking. Seats and votes will be attributed according to the electoral list on which they were obtained, as reported in the official results, regardless of the party membership of individual candidates. Lists will be attributed as follows: PSOE: lists of the Spanish Socialist Workers’ Party, including the Partit dels Socialistes de Catalunya (PSC) lists in Catalonia. PP: lists of the People’s Party, including the joint UPN–PP list in Navarre. Broad Front (FA): all Broad Front lists, including Catalunya en Comú in Catalonia, Compromís–Valencian Front in the Valencian Community, and Canarian People’s Unity (UPC) in the Canary Islands. ERC: Republican Left of Catalonia lists, including the joint ERC–Podem lists in Catalonia. Podemos: only lists presented by Podemos on its own. CCa: Canarian Coalition lists, including the joint CCa–1º CAN lists in the Canary Islands. Any other list will be attributed to the party or coalition that presents it, as named in the official proclamation of candidacies. Electoral cooperation, endorsements, coalition agreements, or subsequent changes in party affiliation or parliamentary-group membership will not be considered. This market will resolve based on the results of the elections, as indicated by a consensus of credible reporting. In the case of ambiguity, this market will resolve solely based on the results as reported by the Spanish Ministry of the Interior (https://infoelectoral.interior.gob.es/).
Rules history
Legislative elections to elect the 350 members of the Congress of Deputies of Spain are scheduled to take place on November 29, 2026. This market will resolve according to the political party that wins the greatest number of seats in the Congress of Deputies of Spain as a result of this election. If the results of the specified election are not definitively known by November 30, 2027, 11:59 PM ET, this market will resolve to "Other". Parties will be primarily ranked by the number of seats won in the specified election, counted according to the attribution rules below. If two or more parties are tied on seats, ties will be broken by the total number of valid votes received nationwide by each party, including votes attributed to its regional designations, with higher vote totals ranking higher. Votes attributed to PSC will count toward PSOE. Votes cast for a joint coalition list will not count toward an individual constituent party for this tie-break, even where elected candidates from that list count toward the party’s seat total. If parties remain tied, ties will be broken by alphabetical order of the listed party names. This market will resolve to the party that occupies the highest finishing position after applying this ranking. Seats will be counted where they are attributed to the specified party. If a listed party contests the election under a regional designation, all seats and votes attributed to that designation will count toward the listed party. For example, the Partit dels Socialistes de Catalunya (PSC) will be treated as a regional designation of PSOE. If a listed party contests as part of a coalition, only seats won by candidates who were members of the listed party on election day will count toward that party. Except as provided above, seats attributed to another party or electoral designation will not count, regardless of electoral cooperation, endorsements, coalition agreements, or subsequent changes in party affiliation or parliamentary-group membership. This market will resolve based on the results of the elections, as indicated by a consensus of credible reporting. In the case of ambiguity, this market will resolve solely based on the results as reported by the Spanish Ministry of the Interior (https://infoelectoral.interior.gob.es/).
Legislative elections to elect the 350 members of the Congress of Deputies of Spain are scheduled to take place on November 29, 2026. This market will resolve according to the political party that wins the greatest number of seats in the Congress of Deputies of Spain as a result of this election. If the results of the specified election are not definitively known by November 30, 2027, 11:59 PM ET, this market will resolve to "Other". Seats will be counted where they are attributed to the specified party. If a listed party contests the election under a regional designation, all seats and votes attributed to that designation will count toward the listed party. For example, the Partit dels Socialistes de Catalunya (PSC) will be treated as a regional designation of PSOE. If a listed party contests as part of a coalition, only seats won by candidates who were members of the listed party on election day will count toward that party. Except as provided above, seats attributed to another party or electoral designation will not count, regardless of electoral cooperation, endorsements, coalition agreements, or subsequent changes in party affiliation or parliamentary-group membership. This market will resolve based on the results of the elections, as indicated by a consensus of credible reporting. In the case of ambiguity, this market will resolve solely based on the results as reported by the Spanish Ministry of the Interior (https://infoelectoral.interior.gob.es/).
Market explained
This market measures whether the Spanish Socialist Workers' Party (PSOE) will win the greatest number of seats in the Spanish Congress of Deputies in the 2026 general election, including PSC lists in Catalonia.
How it resolves
The market resolves to Yes if PSOE wins the greatest number of seats in the 2026 general election, based on the ranking of seats won nationwide. For PSOE, this includes Partit dels Socialistes de Catalunya (PSC) lists. If parties tie on seats, the tie is broken first by nationwide popular vote total, and then by alphabetical order. The market resolves to No if another party wins the most seats under these rules. The market resolves to Other if results are not definitively known by November 30, 2027, at 11:59 PM ET. Results are determined by a consensus of credible reporting, with the Spanish Ministry of the Interior serving as the deciding source in case of ambiguity.
Resolution source
Spanish Ministry of the Interior
AI-generated analysis · google/gemini-3.7-flash ·