Current polls (September 1-3, 2026) show KD at 5.8% (Infostat, September 1) and 6.7% (PolitPro trend, September 3). KD is part of the incumbent Tidö coalition and achieved 6.4% in 2022. A fall below 4.5% would be a significant outlier given the stable polling position. No specific Polymarket market for KD's individual result.
Current polls project only ~147 seats for the Tidö bloc (M+SD+KD+L) — well short of the 175 needed for a majority in the 349-seat Riksdag. The open Cassandra forecast that Liberalerna (L) fails the 4% threshold would weaken the bloc further. At the same time the left camp (S+V+MP+C) is collectively much stronger per current polls. Apollo News confirms: 'right-wing camp gains ground but remains behind majority'. No counter-prediction in the existing list.
Current Swedish election polls (as of September 4, 2026, 9 days before the election): Social Democrats 28.9%, Sweden Democrats 19.6%, Moderates 17.3%, Left Party 7.8%, Center Party 7.6%, Greens 7.4%, Christian Democrats 6.6%, Liberals 2.5%. SD leads in 2nd place by 2.3 percentage points over the Moderates (M). For a rank change, M would need to gain at least 2–3 percentage points in nine days — unlikely given a stable gap confirmed by multiple polling institutes. No specific Polymarket market for 'SD second-strongest party' available; calibration based on poll consistency and historical Swedish electoral volatility (typically ±1–2 points deviation from polls). Note: This prediction is independent of the coalition outcome and compatible with the existing prediction about the Tidö majority loss.
The Riksdag election takes place on 13 September 2026. Current polls (August-September 2026) show Moderaterna at 16.4% – approximately 1.4 percentage points above the 15.0% threshold. This falls within the typical Swedish polling margin of error (±2-3 percentage points). No explicit Polymarket/Metaculus market for Moderaterna's vote share. Historical results: 19.8% (2022), 23.3% (2018) show a declining trend due to SD strength, but Moderaterna remains stable as the second-largest party in the Tidö bloc. The Tidö governing coalition overall polls at 44.6% (opposition: 52.7%).
All five most recent polls show Socialdemokraterna under Magdalena Andersson clearly in first place: Indikator (Sept. 4): 27.9%; Verian (Sept. 3): 29.2%; Demoskop (Sept. 1): 27.2%; Ipsos (Aug. 25): 30.3%. PolitPro aggregate (Sept. 5): S 28.9% — gap to Sverigedemokraterna (19.6%) around 9 percentage points. The left-wing opposition (S+V+MP+C) leads in all recent polls by 3–8 points. The forecast is consistent with the already open prediction 'SD second-largest party' and 'Tidö coalition loses majority'. No prediction market price available; own estimate: 84%.
In the 2022 Riksdag election, Centerpartiet received 6.7% and moved to the opposition. Current aggregators (SVT/Novus, Ipsos) show the party at 5.5–7.5% for 2026, with a median around 6.5%. The party benefits from agricultural and climate themes but is losing urban votes to the Social Democrats. Clearing the 4% threshold is very likely; holding above 6% is the most likely single scenario, but competition with Sverigedemokraterna and Moderaterna for right-liberal votes creates downside risk. No Polymarket market; poll-of-polls sees C at median ~6.4%.
PolitPro election trend (Sep 4, 2026): Liberalerna at 2.4–2.5%. Infostat poll (Sep 1): 2.5%. TV4 poll (Aug 31): 3.3% – even in the best scenario 0.7 percentage points below the Swedish 4% threshold. Not a single poll in the past six weeks shows the party anywhere near 4%. Tactical voters are migrating to Moderaterna (>15%, existing prediction) and KD. Polymarket has no specific Liberalerna contract; the aggregate strongly implies the party will fail the threshold.
Current polls (August–September 2026) consistently show SD at 18.9–20.7%: Verian 18.9%, Demoskop 20.0%, Infostat 20.2%, Novus 20.7%, PolitPro trend 19.7%. A result below 18.5% would underperform even the lowest poll (Verian) by 0.4 percentage points. SD is a highly mobilized party that historically meets or exceeds polling averages.
PolitPro election trend (September 3, 2026) shows MP at 7.2%; Infostat (September 1, 2026) at 7.5%; Ipsos (May 2026) at 6.0%. MP sits well above Sweden's 4% threshold and comfortably above the 6% prediction mark. Failure would require a polling error of >1.2 percentage points — rare for established Swedish pollsters. No Polymarket market; electoral market implied probabilities place MP clearly in parliament. Forecast based on consistent polling data across multiple institutes.
Latest poll (Infostat, Sep 1, 2026): Vaensterpartiet at 8.7% – 1.2 points above the 7.5% threshold. In the 2022 Riksdag election VP achieved 6.7%; the current polling high reflects left-wing opposition to the Tidoe Coalition. Swedish polls show typical error margins of +/-1.5–2.5%; the 7.5% threshold provides roughly half-a-margin buffer. No Polymarket market; estimate ~72%.
The PolitPro election trend (weighted average of all polling institutes) shows KD at 6.6% on September 6, 2026, well above the 4% threshold. Infostat (Sep 1) sees KD at 5.8%, Demoskop (Aug 24) at 8.5% — all polls clearly above the threshold. For comparison, Liberalerna (L) polls consistently below 4% and is considered the threshold loser. KD under Ebba Busch has stabilized its conservative voter base with clear economic and migration policy. Entry appears highly probable with a 6.6% polling average and a 2.6 percentage point safety buffer above the threshold.
According to current Verian polling (August 20 – September 2, 2026), Socialdemokraterna stands at 25.8–29.2%. The polling median is around 27.5%, structurally implying slightly better than 50/50 odds for >27%. Swedish Social Democrats have historically been slightly underestimated in polls as their voter base mobilizes above average. The Red-Green bloc leads according to PolitPro at 52.7% vs. 44.6% for the Tidö coalition. Polymarket shows no specific quote for this threshold.
Current polls (September 6, 2026): PolitPro trend shows S at 28.9%, SD at 19.6%, M at 17.3%. Infostat (September 1): S 27.2%, SD 20.2%, M 17.5%. Demoskop (August 24): S 30.4%, SD 18.3%, M 17.2%. SD consistently leads M across all polls — the gap is 2–3 percentage points with no visible catch-up trend. M in third is the consensus scenario. The existing open predictions cover S as the largest party, SD >18.5%, and small parties, but not M's exact rank.
Sweden traditionally shows very high voter turnout: 87.18% (2018), 85.8% (2014), 84.6% (2010), and 84.21% (2022, source: Valmyndigheten). The 85% threshold was exceeded in 3 of the last 4 elections; 2022 narrowly missed it (84.21%). The 2026 election is particularly polarised — SD and S are neck-and-neck, multiple parties are fighting the threshold — factors that typically drive mobilisation up. SVT polls indicate elevated voter interest. Historical base rate for >85%: 3/4 of the last elections (75%). We set 55%.
According to the PolitPro poll trend (as of September 6, 2026), Centerpartiet (C) stands at 7.5% (+0.8 points vs. prior month, projected 27 seats). The 5.5% threshold is 2.0 points below the current poll average – even a polling error of ±2.5pp (as observed in Swedish averages) would leave C above 5.5%. The 4% threshold is already expected to be cleared with 80% probability per existing forecast; >5.5% is calibrated more conservatively. Polymarket 'Sweden Parliamentary Election Winner': $4.57M trading volume, no C-specific market found.
Current polls place Liberalerna well below the 4% threshold: Infostat (fieldwork through September 1) and PolitPro trend (September 6) show L at only 2.0–2.5%. That is far below their 2022 result (4.7%) and makes a jump to 4% within the remaining days unlikely. Existing open forecasts project 7 parties above the threshold; Liberalerna is not among them. Main risk: last-minute tactical voting surge, which historically shifts outcomes by at most 0.5–1.0 percentage points in Swedish elections.
Per PolitPro election trend (September 6, 2026), Sweden Democrats poll steadily at 19.5%. All recent individual polls show SD consistently above 19%: Infostat (through Sep 1, 2026): 20.2%; Demoskop (Aug 25–Sep 1, 2026): 20.0%; Novus (Aug 24–30, 2026): 20.7%. No explicit Polymarket market for this SD % threshold; implied market probability based on poll aggregate ~80%. The 19.0% threshold sits below all current polling figures; SD would need to underperform all polls by more than 0.5pp to miss. SD has been consistently the second-largest party since 2022.
Novus Väljarbarometer September 2026: Miljöpartiet at 7.8% (−0.1 pp vs. August). PolitPro election trend: 7.3%. SCB May 2026 survey: 6.6% ± 0.7%. All institutes sit well clear of the 4% threshold — even the lower confidence interval (~5.9%) comfortably exceeds the barrier. The party benefits from heightened climate-voter interest in 2026; no regular survey places MP anywhere near the 4% floor. No Polymarket contract found specifically for MP; estimated probability ~88%.
The polling aggregate (politpro.eu, early September 2026) shows Vänsterpartiet steady at 8.1%, confirmed by individual polls (Verian: ~8.4%, Demoskop: similar). The 7.0% bar sits 1.1 points below current polling — a typical safety cushion for Swedish mid-size parties. No prediction market for exact V result; own calibration based on aggregate.
Polls show KD at 6.6% aggregate (politpro.eu, early September 2026). The 5.5% bar sits 1.1 points below polling. Swedish smaller parties with stable core voters above 6% can still slip on election day due to tactical voting, but falling below 5.5% from 6.6% polling is a minority scenario.