The Swedish Social Democratic Party maintains a commanding lead in recent opinion polls for the September 13, 2026, Riksdag election, averaging around 33 percent and outpacing the Sweden Democrats and Moderate Party by roughly 13 points. This consistent advantage for the largest party under proportional representation has solidified trader consensus around its prospects for the most seats, reinforced by stable trends through April and May surveys from multiple pollsters and projected left-bloc majorities near 190 seats. Historical precedent as Sweden's dominant force further supports the current positioning. Late shifts could still occur through major scandals involving party leadership, unexpected economic or immigration developments favoring the Tidö-aligned parties, or polling inaccuracies typical in multi-party systems.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLiberals and Sweden Democrats announce removal of “red‑line” restrictions on SD coalition participation, signalling a possible reunification of the Tidö bloc and causing a sharp
Swedish Social Democratic Party (S) dips to 90%3%
Liberals and Sweden Democrats announce removal of “red‑line” restrictions on SD coalition participation, signalling a possible reunification of the Tidö bloc and causing a sharp drop in S’s












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