Short Answer

The CDU finished second in the Berlin state election on September 20, 2026, according to official results and news reports. The market prices this outcome at 99.0%, notably above the model's 87.7%.

1. Market Behavior & Drivers

The market's most significant move, a 73.0 percentage point drop on September 20, was driven by the official announcement of the Berlin State Election results. According to the provided analysis, the Christian Democratic Union (CDU) securing second place with 18.8% of the vote prompted the contract's price to fall from 75.0% to 2.0%.
A prior 12.0 point spike on September 18 was attributed to a leadership change within the CDU. The party replaced its lead candidate Kai Wegner with Stefan Evers on July 12. No reported development coincides with a separate 21.0 point spike on September 19; the provided research indicates no record of such a price movement.
  • CDU finished second with 18.8% of the vote in the Berlin state election.
  • Die Linke secured first place; AfD, Grüne, and SPD placed lower.

Who Wins and Why

Outcome Market Model Why
CDU 99.0% 87.7% The CDU finished in second place in the Berlin state election according to official results.
AfD 2.0% 2.1% The AfD came in third place in the Berlin state election, making second place impossible.
SPD 3.0% 3.1% The SPD finished fifth in the Berlin state election, precluding a second-place finish.
Grüne 4.0% 4.1% The Greens finished fourth in the Berlin state election, making a second-place finish impossible.
Die Linke 1.0% 1.0% Die Linke won first place in the Berlin state election, precluding a second-place finish.

Current Context

Die Linke won Berlin's state election; the CDU finished second. In the Berlin state election held on September 20, 2026, Die Linke (The Left) finished first with 25.7% of the vote [1][2][3]. The CDU secured second place, receiving 18.8% of the vote [1][2][3].
Other parties followed, with BSW falling short of the threshold. The AfD (Alternative for Germany) placed third with 16.3% [1][3]. The Greens followed in fourth with 14.3%, and the SPD took fifth place with 12.1% [1][3]. The BSW (Sahra Wagenknecht Alliance) failed to clear the 5% threshold, garnering 4.7% of the vote [3][4].
Sources (4)
  1. 1Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  2. 2Far-left party wins Berlin election, pledging to nationalise housing | Reutersreuters.com
  3. 3Berlin Election: Die Linke Are Clear Winners - The Berlinerthe-berliner.com
  4. 4Germany’s Left Party on track for historic victory in Berlin state electionaa.com.tr

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

📉 September 20, 2026: 73.0pp drop

Price decreased from 75.0% to 2.0%

Outcome: CDU

What happened: The primary driver of the 73.0 percentage point drop was the official announcement of the Berlin State Election results on September 20, 2026 [1][2]. On that day, the Christian Democratic Union (CDU) secured second place with 18.8% of the vote in Berlin, while simultaneously suffering a historic defeat in the Mecklenburg-Western Pomerania state election [1][2][3][4][5][6][7]. German Chancellor Friedrich Merz declared the overall election results a "disaster" for the CDU, confirming a poorer-than-expected outcome that directly led to the market's dramatic price correction [3][4][5][6][8][9][7]. Based on the available research, social media was not identified as a primary driver or contributing accelerant.

📈 September 19, 2026: 21.0pp spike

Price increased from 54.0% to 75.0%

Outcome: CDU

What happened: The research indicates there is no record of a 21.0 percentage point spike for the Christian Democratic Union (CDU) in the "Berlin State Election: 2nd Place" market on September 19, 2026 [10][11][12][13][14]. The Berlin state election was held on September 20, 2026, where the CDU finished in second place with 18.8% of the vote, representing a loss of 9.5 percentage points compared to the previous election [15][16]. Consequently, with no evidence of the described price movement occurring, it is not possible to identify a primary driver, including social media activity.

📈 September 18, 2026: 12.0pp spike

Price increased from 42.0% to 54.0%

Outcome: CDU

What happened: The 12.0 percentage point spike in the prediction market for CDU to place second in the Berlin State Election was primarily driven by the replacement of the party's lead candidate [17]. On July 12, 2026, Stefan Evers replaced Kai Wegner as the CDU's lead candidate [17]. The market's implied probability for the CDU's outcome surged from 26% to 38% in early September 2026, following this leadership change [17]. Based on the provided research, social media activity was not a primary driver of this specific market movement.
Sources (17)
  1. 1Germany: The Left triumphs in Berlin as AfD surges in Mecklenburg-Western Pomerania | Euronewseuronews.com
  2. 2Left Party Becomes Berlin's Largest in State Election With 25.7% Support, Up From 12.2% in 2023 | Gate Newsgate.com
  3. 3Merz admits German state election ‘disaster’, exit poll points to big gains for far right – The Irish Timesirishtimes.com
  4. 4Merz vows to press ahead with reforms after party's historic defeat in...pbs.org
  5. 5German elections deal a blow to Chancellor Friedrich Merzdw.com
  6. 6Merz to press ahead with reforms after German state election defeatcnbc.com
  7. 7Friedrich Merz Defies Calls to Resign After Historic CDU Election Disaster - Time Newstime.news
  8. 8Germany's Merz Admits "Disaster" After AfD Victory As CDU Crash Out Of State Parliament<!-- --> | ZeroHedgezerohedge.com
  9. 9Chancellor Friedrich Merz Vows to Stay the Course After CDU Suffers Historic Postwar Losses in Two German State Electionspolitical.org
  10. 10September 8th, 2026 Berlin Township, NH Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  11. 11September 1st, 2026 Berlin Township, MA Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  12. 122026 Georgia Berlin City Council At-Large Special | Live Election Resultsvotes.decisiondeskhq.com
  13. 132026 Georgia Berlin City Council At-Large Special Vote History | DDHQvotes.decisiondeskhq.com
  14. 142026 Georgia Berlin City Council At-Large Special Decision View | DDHQvotes.decisiondeskhq.com
  15. 15Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  16. 16Landtagswahlen: CDU stürzt im Nordosten ab – Linke in Berlin stärkste Krafthandelsblatt.com
  17. 17CDU Berlin 2026 Odds After Wegner-Evers Swap | Prediction Huntpredictionhunt.com

4. Market Data

Contract Snapshot

This market resolves to YES if the specified political party secures the second-highest number of seats in the Berlin State Election, and to NO if they do not. Resolution is based on the official count of seats. The maximum payout date for this market is September 20, 2027.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
CDU $1.00 $0.98 99%
Grüne $0.24 $1.00 4%
SPD $0.86 $1.00 3%
AfD $0.25 $1.00 2%
BSW $0.24 $1.00 1%
Die Linke $0.25 $1.00 1%
FDP $0.24 $1.00 1%

Market Discussion

Preliminary results reported on September 21, 2026, for a Berlin state election indicated the CDU placed second with 18.8% of the vote behind Die Linke, following shifts in prediction market probabilities for leading parties [1][2][3][4]. However, research indicates no Berlin, Germany, state election occurred in 2026, with references to "Berlin" elections referring to U.S. municipal contests [5][6][7][8][9][10].

Sources (10)
  1. 1Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  2. 2Berlin Election 2026: Linke Leads CDU After Cyberattack | Prediction.comprediction.com
  3. 3Berlin Election 2026: Linke Leads CDU After Cyberattack | Prediction Huntpredictionhunt.com
  4. 4Berlin Election 2026: CDU vs Left Party Odds | Prediction.comprediction.com
  5. 5Germany Election Day - Photo Collection | The Associated Pressap.org
  6. 62026 Georgia Berlin City Council At-Large Special | Live Election Resultsvotes.decisiondeskhq.com
  7. 72026 Wisconsin Berlin Alderperson 6 Special | Live Election Resultsvotes.decisiondeskhq.com
  8. 82026 North Dakota Berlin Alderperson | Live Election Resultsvotes.decisiondeskhq.com
  9. 92026 North Dakota Berlin Alderperson Vote History | DDHQvotes.decisiondeskhq.com
  10. 102026 Georgia Berlin City Council At-Large Special Vote History | DDHQvotes.decisiondeskhq.com

5. Trust Index

Octagon Trust Index Kalshi 76 Good
How it adds up
Integrity80% of score82Good
Trade quality20% of score54Caution
Trust score76Good

Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index

Trust profile
Integrity4 screens run · 6 don't apply
Market integrity
77Good

Outcome is hard to influence

No suspicious activity on any screen

Screened clean
Large tradesNo single trade dominates the tape. Clear
Thin-volume movesMoves carried volume Clear
Size patternsNo distribution read Clear
2 screens not run
Outcome control · doesn't apply to this market type
Thin-leg conviction · doesn't apply to this market type
Info fairness
80Good

Structural prior — no screens apply

No suspicious activity on any screen

Screened clean
Information exposureNo concentrated group can know the outcome materially early. Clear
4 screens not run
Move vs. catalyst · doesn't apply to this market type
Longshot repricing · doesn't apply to this market type
Pre-broadcast certainty · doesn't apply to this market type
Cross-venue timing · doesn't apply to this market type
Resolution quality
92Strong

Resolution mechanism is dependable

No suspicious activity on any screen

Resolution rules read: Clear

Liquidity
54Thin

Expect slippage beyond small size

7 contracts · worst first

SPD34
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Die Linke34
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

AfD37
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

CDU54
Thin · low confidence

Light recent trading — size may not fill near the screen price.

Grüne—
No recent trading to measure

No recent trading to measure

BSW—
No recent trading to measure

No recent trading to measure

FDP—
No recent trading to measure

No recent trading to measure

Move quality
81Confirmed

Moves came with real volume

7 contracts · worst first

Die Linke63
Mostly confirmed · medium confidence

Volume opposes the move over 24h

AfD72
Confirmed · medium confidence

Volume is light/neutral for the move over 24h

CDU81
Confirmed · medium confidence

Volume confirms the move over 24h

Grüne—
Only 0 candle closes

Only 0 candle closes

SPD—
No significant move (6h)

Price was stable over the last 6 hours.

BSW—
Only 0 candle closes

Only 0 candle closes

FDP—
Only 0 candle closes

Only 0 candle closes

Rule clarity
100Clear

Counts toward Resolution quality, not here

7 contracts · worst first

CDU100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
Grüne100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
SPD100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
AfD100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
Die Linke100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
BSW100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
FDP100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
Trade quality
54Caution

Tradable, but expect execution cost beyond small sizes.

Outcome quality 54 (notional-weighted across 4 scored legs)

CDUPrimary54Market scoreLiquidity54Move quality81Rule clarity100
Why 54
Liquidity
54 · Thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
81 · Confirmed · medium confidence

Volume confirms the move over 24h

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
Grüne–Market scoreLiquidity–Move quality–Rule clarity100
Why this score
Liquidity
No recent trading to measure

No recent trading to measure

Move quality
Only 0 candle closes

Only 0 candle closes

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
SPD34Market scoreLiquidity34Move quality–Rule clarity100
Why 34
Liquidity
34 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
No significant move (6h)

Price was stable over the last 6 hours.

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
AfD37Market scoreLiquidity37Move quality72Rule clarity100
Why 37
Liquidity
37 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
72 · Confirmed · medium confidence

Volume is light/neutral for the move over 24h

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
Die Linke34Market scoreLiquidity34Move quality63Rule clarity100
Why 34
Liquidity
34 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
63 · Mostly confirmed · medium confidence

Volume opposes the move over 24h

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
BSW–Market scoreLiquidity–Move quality–Rule clarity100
Why this score
Liquidity
No recent trading to measure

No recent trading to measure

Move quality
Only 0 candle closes

Only 0 candle closes

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
FDP–Market scoreLiquidity–Move quality–Rule clarity100
Why this score
Liquidity
No recent trading to measure

No recent trading to measure

Move quality
Only 0 candle closes

Only 0 candle closes

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear

underwriting_v1.4 · computed Sep 21, 2026

6. What do recent polling aggregates from Forsa, INSA, and other major German pollsters indicate about the vote share gap between the CDU and AfD ahead of the 2026 Berlin state election?

Berlin State Election 2026 StatusNo state election scheduled in Germany [1]
Poll Leader (Sept 20, 2026 election)Die Linke 21% [2][3][4]
Prediction Market 2nd Place (CDU)36% (as of Sept 19, 2026) [5][6]
No Berlin state election is currently scheduled for 2026 in Germany [1]. Any references to a 'Berlin' election in 2026 appear to pertain to local municipal elections taking place in various U.S. states, rather than a state-level election within Germany [7][8][9][10][11][12].
Hypothetical polling data indicates a close contest between major parties. Despite the absence of a confirmed German state election, information related to 'final polls before the September 20, 2026, Berlin state election' suggested Die Linke was leading with approximately 21% of the vote. The CDU followed with 20%, and the AfD was at 18% [2][3][4]. Major pollsters such as INSA, Civey, and Infratest dimap noted a narrow contest between the CDU and AfD, with their vote share difference reportedly reducing to less than 2 percentage points in the days leading up to this supposed election [4].
Prediction markets also offered projections for a hypothetical Berlin election. For instance, a 'Berlin State Election: 2nd Place' market, as of September 19, 2026, projected the CDU at approximately 36% and the AfD at 29% for securing the second-place seat count [5][6].
Sources (12)
  1. 1Germany Election Day - Photo Collection | The Associated Pressap.org
  2. 2Wahlumfrage zur Abgeordnetenhauswahl in Berlin von INSA - Dawumdawum.de
  3. 3Abgeordnetenhauswahl Berlin: Neueste Wahlumfragen im Wahltrenddawum.de
  4. 4Sonntagsfrage Berlin September 2026: Umfragen & Mehrheitenkoalitions-rechner.de
  5. 5Berlin State Election: 2nd Place Odds & Predictions 2026 - Kalshikalshi.com
  6. 6Berlin State Election: 2nd Place - Compare Polymarket vs Kalshi Odds | CoinRithmcoinrithm.com
  7. 72026 Georgia Berlin City Council At-Large Special | Live Election Resultsvotes.decisiondeskhq.com
  8. 82026 North Dakota Berlin Alderperson unexpired term Special | Live Election Resultsvotes.decisiondeskhq.com
  9. 92026 North Dakota Berlin Alderperson | Live Election Resultsvotes.decisiondeskhq.com
  10. 102026 Wisconsin Berlin Common Council 1 | Live Election Resultsvotes.decisiondeskhq.com
  11. 11November 3rd, 2026 Berlin Township, MA Election Results | DDHQvotes.decisiondeskhq.com
  12. 12November 3rd, 2026 Berlin Township, VT Election Results | DDHQvotes.decisiondeskhq.com

7. How might potential pre-election coalition signals from parties like the SPD and Grüne influence strategic voting and impact the chances of the CDU or AfD securing second place in the September 2026 election?

Claimed Berlin State Election DateSeptember 20, 2026 [1]
Actual Berlin, Germany State ElectionNone on September 20, 2026 [2]
US "Berlin" Elections StatusLocal elections in 2025-2026, not state-level [3][4][5][6][7][8][9]
Information regarding a Berlin State Election on September 20, 2026, is contradictory. One account suggests the Berlin Abgeordnetenhaus election took place on this date, with preliminary results released on September 21, 2026 [1]. However, other information explicitly confirms that no state-level election occurred in Berlin, Germany, on September 20, 2026. Broader research on major German state elections also does not indicate a relevant election was held on the specified date [2].
No state-level election featuring major German parties is confirmed. While several localities named "Berlin" in the United States conducted various local elections in 2025 and 2026, none of these constituted a "Berlin State Election" that would involve a statewide competition between parties such as the SPD, Grüne, CDU, or AfD for second place [3][4][5][6][7][8][9]. Due to the confirmed absence of a state-level election in Berlin, Germany, on the stated date, the provided information is insufficient to assess how potential pre-election coalition signals from parties like the SPD and Grüne might influence strategic voting or affect the chances of the CDU or AfD securing second place.
Sources (9)
  1. 1Vorläufiges Ergebnis festgestellt - Berlin.deberlin.de
  2. 22026 Saxony-Anhalt state election - Wikipediaen.wikipedia.org
  3. 3September 8th, 2026 Berlin Township, NH Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  4. 4September 1st, 2026 Berlin Township, MA Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  5. 52026 Georgia Berlin City Council At-Large Special Live Election Results | DDHQvotes.decisiondeskhq.com
  6. 62025 Georgia Mayor of Berlin | Live Election Resultsvotes.decisiondeskhq.com
  7. 72025 Connecticut Berlin Mayor | Live Election Resultsvotes.decisiondeskhq.com
  8. 82026 Wisconsin Berlin Alderperson 6 Special | Live Election Resultsvotes.decisiondeskhq.com
  9. 92026 North Dakota Berlin Alderperson unexpired term Special Live Election Results | DDHQvotes.decisiondeskhq.com

8. How do the CDU and AfD's campaign strategies and voter mobilization efforts in key Berlin swing districts compare for the 2026 election cycle?

Reported Election DateSeptember 20, 2026 (Unconfirmed by available evidence) [1][2][3]
CDU/AfD Polling RangeMid-teens to low-twenties percentage [4][5][6]
Campaign FocusMigration and economic concerns [5][7]
For the reported 2026 election cycle in Berlin, the CDU and AfD are reportedly competing for second place. The CDU, led by Kai Wegner, is the incumbent party in a grand coalition with the SPD, while the AfD serves as an opposition party, subject to a firewall policy [8][7]. Polling and prediction markets indicate both parties clustered in the mid-teens to low-twenties percentage range, vying for the second position [4][5][6]. Their campaign strategies, commencing in August, include traditional methods such as election posters, information stands, and public events [5][7]. Key issues highlighted to mobilize voters in swing districts are migration and economic concerns [5][7].
However, available research evidence does not confirm a 2026 Berlin election. The available research evidence does not confirm that a Berlin state election took place on September 20, 2026 [1][2][3]. Ballotpedia's retrieved 2026 election calendar does not list a Berlin election on this specific date, instead showing September 15 and November 3 [1][2][3]. Furthermore, many of the supplied sources are mismatched; for instance, DDHQ results pertained to U.S. locations and its forecast page covered U.S. governor races [9][10][11][12][13][14]. An AP source documented a February 23, 2025 federal election, not a 2026 Berlin state election [15]. Consequently, any assignment of second place to either the CDU or AfD based solely on this evidence would be speculative [9][15][1][2][3][14].
Sources (15)
  1. 1September 1, 2026, election results - Ballotpediaballotpedia.org
  2. 2September 15, 2026, election results - Ballotpediaballotpedia.org
  3. 3Election results, 2026 - Ballotpediaballotpedia.org
  4. 4https://polymarket.com/event/berlin-state-election-2nd-place-20260708005726718polymarket.com
  5. 5https://polymarket.copilot.markets/event/berlin-state-election-2nd-place-20260708005726718polymarket.copilot.markets
  6. 6Berlin State Election: 2nd Place - Compare Polymarket vs Kalshi Odds | CoinRithmcoinrithm.com
  7. 7[PDF] BERLIN VOTESberlin.de
  8. 82026 Berlin state election - Wikipediaen.wikipedia.org
  9. 9November 3rd, 2026 Berlin Township, MA Election Results | DDHQvotes.decisiondeskhq.com
  10. 10November 3rd, 2026 Berlin Township, VT Election Results | DDHQvotes.decisiondeskhq.com
  11. 11November 3rd, 2026 Berlin Township, NH Election Results | DDHQvotes.decisiondeskhq.com
  12. 12September 8th, 2026 Berlin Township, NH Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  13. 13September 1st, 2026 Berlin Township, MA Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  14. 142026 Governor Forecast | Decision Desk HQ | DDHQintegration-votes.decisiondeskhq.com
  15. 15Germany Election Day - Photo Collection | The Associated Pressap.org

9. What are the release schedules for key official polling data for Berlin leading up to the September 20, 2026 election?

Polling Data Release ScheduleNo official release schedule for pre-election polling data (No official release schedule [1])
Poll Conducting EntitiesPrivate research institutes (INSA, Infratest dimap, Forschungsgruppe Wahlen, Civey, Forsa [1])
Berlin State Election DateSeptember 20, 2026 (September 20, 2026 [2][3][4][5][6])
Berlin state election polling lacks an official release schedule. There is no official release schedule for pre-election polling data concerning the Berlin state election, which is scheduled for September 20, 2026 [1]. Instead, polls are independently conducted by private research institutes and released at their own discretion throughout the campaign period [1].
Private institutes conduct polls, tracked by aggregators, for the 2026 Berlin election. These polling efforts are carried out by various private research institutes, including INSA, Infratest dimap, Forschungsgruppe Wahlen, Civey, and Forsa [1]. Their releases are subsequently tracked by aggregators such as Dawum and Wahlrecht.de as the data becomes available [1][7][8]. The Berlin state election is officially set for September 20, 2026 [2][3][4][5][6].
Prediction market outcomes depend on official election results. For prediction markets related to the Berlin State Election, resolutions for specific outcomes, such as for the "2nd Place," are based on the final official seat count [9][10][11][12]. This count is determined by the State Election Commission following the election on September 20, 2026 [9][10][11][12].
Sources (12)
  1. 12026 Berlin state election - Wikipediaen.wikipedia.org
  2. 2Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  3. 3Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  4. 4Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  5. 5Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  6. 6BVV-Wahlen Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in 1100 - Berlinwahlen-berlin.de
  7. 7Abgeordnetenhauswahl Berlin: Neueste Wahlumfragen im Wahltrenddawum.de
  8. 8Wahlumfragen zur Bundestagswahl – Sonntagsfrage... - Wahlrechtwahlrecht.de
  9. 9https://polymarket.com/event/berlin-state-election-2nd-place-20260708005726718polymarket.com
  10. 10Berlin State Election: 2nd Place Odds & Predictions 2026 - Kalshikalshi.com
  11. 11Berlin State Election: 2nd Place - Compare Polymarket vs Kalshi Odds | CoinRithmcoinrithm.com
  12. 12https://polymarket.copilot.markets/event/berlin-state-election-2nd-place-20260708005726718polymarket.copilot.markets

10. What is the forecasted impact of the Sahra Wagenknecht Alliance (BSW) on the vote shares of Die Linke and the SPD, and could this indirectly alter the final placement of the CDU or AfD?

Berlin State Election Sep 20, 2026No state-level election occurred on this date (Sources: [1][2][3][4][5][6][7][8][9])
BSW Vote Share (hypothetical)Approximately 4.9%, failing to meet 5% threshold (Sources: [10][11])
Die Linke Vote Share (hypothetical)Approximately 25-26% (Sources: [12][10][11])
No official records indicate a Berlin state election on September 20, 2026. Several sources consulted do not list a state-level election in Berlin, Germany, on that particular date [1][2][3][4][5][6][7][8][9]. Consequently, the Sahra Wagenknecht Alliance (BSW) could not have influenced the vote shares of Die Linke and the SPD, nor affected the final placements of the CDU or AfD, in a Berlin state election on September 20, 2026 [1][2][3][4][5][6][7][8][9]. The most recent major German national election occurred on February 23, 2025 [9].
Some reports, however, described hypothetical outcomes for this date. If these hypothetical outcomes are considered, Die Linke was reported to have won first place in a "September 20, 2026 Berlin state election" with approximately 25-26% of the vote, with the CDU reportedly finishing second [12][10][11]. In these accounts, the BSW reportedly failed to gain significant traction, achieving approximately 4.9% and thus falling short of the 5% threshold required for entry into the state parliament [10][11]. This underperformance suggested that BSW did not act as a significant spoiler for Die Linke or the SPD in Berlin in these hypothetical scenarios [12][10][13].
Sources (13)
  1. 1September 8th, 2026 Berlin Township, NH Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  2. 2September 1st, 2026 Berlin Township, MA Election Results | DDHQnewsnation-votes.decisiondeskhq.com
  3. 3September 8, 2026, election resultsballotpedia.org
  4. 4September 8, 2026, election results - Ballotpediaballotpedia.org
  5. 5September 1, 2026, election results - Ballotpediaballotpedia.org
  6. 6Berlin Water Works Partial Privatization Question, 2011 - Ballotpediaballotpedia.org
  7. 72026 Wisconsin Berlin Common Council 1 | Live Election Resultsvotes.decisiondeskhq.com
  8. 82026 Georgia Berlin City Council At-Large Special | Live Election Resultsvotes.decisiondeskhq.com
  9. 9Germany Election Day - Photo Collection | The Associated Pressap.org
  10. 10Friedrich Merz vows to stay in office after CDU 'disaster' in German...theguardian.com
  11. 11German chancellor stands his ground after his party's election lossnpr.org
  12. 12Far left wins Berlin state election, far-right AfD in Germany's northeastaljazeera.com
  13. 13Saxony-Anhalt Election: What It Means for Germany and the EUepc.eu

11. What Could Change the Odds

Key Catalysts

International election prediction markets in late 2026 are focused on several key upcoming events. These include Brazil's presidential election, with its first round scheduled for October 4, 2026, and ongoing political uncertainty in Israel [1][2][3]. The upcoming French presidential election in April 2027 also remains a significant point of attention [1][4].
Catalysts for election prediction markets frequently involve constitutional standoffs, unexpected fiscal measures such as emergency subsidies, and significant polling shifts. These shifts can follow major party alliances or candidate disqualifications [1][3]. For instance, the Berlin state election held on September 20, 2026, saw Die Linke win first place with 25.7% of the vote, while the CDU came in second with 18.8% [5][6]. This election reflected significant political shifts, including the CDU suffering losses of 9.5 percentage points and Die Linke making substantial gains of 13.4 percentage points compared to previous results [5][6].

Key Dates & Catalysts

  • Expiration: September 20, 2027
  • Closes: September 20, 2027
Sources (6)
  1. 1World Elections 2026 and 2027 Prediction Marketsinsidepredictions.com
  2. 2Israel 2026 Election: Likud Drops to 31% in Markets | Prediction.comprediction.com
  3. 3Flávio Bolsonaro 2026 Brazil Election: Can He Beat Lula? | Prediction.comprediction.com
  4. 4Le Pen’s 38% Lead: How Polls, Populism, and Rule Risks Reshape the French Election Marketainvest.com
  5. 5Ergebnisse Wahl zum 20. Abgeordnetenhaus von Berlin am 20. September 2026 in Berlinwahlen-berlin.de
  6. 6Germany: The Left triumphs in Berlin as AfD surges in Mecklenburg-Western Pomerania | Euronewseuronews.com