# Social Democrats won plurality but fell short of majority in Sweden

*Politics. 30% certain. Sunday, 13 September 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**Sweden Democrats finished second and Christian Democrats kept their Riksdag seats.**

The Swedish Parliamentary election on 13 September produced a fragmented Riksdag. The Swedish Social Democratic Party secured the largest share of the vote, between 27 and 30 percent, but won fewer than 105 seats, falling short of a majority. The Sweden Democrats placed second, receiving more votes than the Moderate Party, which finished third. The election Left the parliament without a clear governing majority.

With the Social Democrats holding the plurality, Magdalena Andersson was designated the next Prime Minister she was appointed as Prime Minister the appointment followed the election results announced on Sunday.

The Christian Democrats retained their representation in the Riksdag, confirming their continued presence after the vote. Their seats add to the number of parties represented in the chamber. The parliament now includes the Christian Democrats among its members.

The Örebropartiet failed to win any seats in the election. No seats were allocated to the Örebropartiet. The party did not meet the threshold required for Parliamentary representation.

Overall voter participation exceeded 7 percent. The seat distribution produced a fragmented Riksdag. Smaller parties that did not meet the threshold were excluded from the chamber.

## Analysis

The Social Democrats' plurality combined with a sub-majority seat count means they cannot govern alone, obliging them to seek coalition partners among the other parties that cleared the electoral threshold.

The Sweden Democrats emerging as the second-largest party signals a shift in voter alignment, giving them leverage in any coalition talks and potentially influencing the policy agenda of a future government.

The continued presence of the Christian Democrats and the exclusion of Örebropartiet illustrate how the 7-percent participation level and the electoral threshold shape the composition of the Riksdag, favoring established parties over newer entrants.

Overall, the fragmented parliament will require extensive negotiations to form a stable executive, and the balance of power among the Social Democrats, Sweden Democrats, Moderates, and Christian Democrats will determine the direction of Swedish policy in the coming term.

## What this was built from

- **Next Prime Minister of Sweden**: Magdalena Andersson, 77%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/next-prime-minister-of-sweden)
- **Sweden Parliamentary Election Winner**: Swedish Social Democratic Party (S), 98%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-winner)
- **Christian Democrats still in Riksdag after next election?**: Yes, 89%; settles Saturday, 12 September 2026 (manifold). [Market](https://manifold.markets/Pazzaz/christian-democrats-still-in-riksda)
- **Sweden Parliamentary Election: S Vote Share?**: 27-30%, 53%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-s-vote-share-20260812172636410)
- **Sweden Parliamentary Election: Liberals Win Seats?**: Yes, 59%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-liberals-win-seats-20260812164320900)
- **Sweden Parliamentary Election: 2nd Place**: Sweden Democrats (SD), 77%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-2nd-place)
- **Sweden Parliamentary Election: 3rd Place**: Moderate Party (M), 78%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-3rd-place)
- **Sweden Parliamentary Election: Örebropartiet Win Seats?**: No, 81%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-orebropartiet-win-seats-20260825132452)
- **Sweden Parliamentary Election: 4th Place**: Centre Party (C), 38%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-4th-place-20260812164320100)
- **Sweden Parliamentary Elections: Social Democratic Party # of seats?**: <105, 52%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-elections-social-democratic-party-of-seats-20260806100330525)
- **Sweden Parliamentary Election: 5th Place**: Green Party (MP), 31%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-5th-place-20260812164320200)
- **Sweden Parliamentary Election: 6th Place**: Green Party (MP), 30%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-6th-place-20260812164320300)
- **Sweden Parliamentary Election: More Votes to SD or M?**: SD, 72%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-more-votes-to-sd-or-m-20260812170140800)
- **🇸🇪 Will Sweden’s Social Democrats win at least 31% of the vote in the September 13, 2026 general election?**: No, 54%; settles Sunday, 13 September 2026 (manifold). [Market](https://manifold.markets/MAKER/-will-swedens-social-democrats-win)
- **Sweden Parliamentary Election: V Over/Under 7%?**: Over, 78%; settles Sunday, 13 September 2026 (polymarket). [Market](https://polymarket.com/event/sweden-parliamentary-election-v-over-under-7-percent-20260812172023903)