Short Answer

Chiang Wan-an is likely to win the 2026 Taipei mayoral election, with the market pricing this outcome at 81.0%.

1. Market Behavior & Drivers

The primary driver of price movement in this market appears to be the release of mayoral satisfaction survey results in mid-September 2026. These surveys reportedly placed incumbent Chiang Wan-an fourth among the six special municipality mayors, a development that likely caused the 13.0 percentage point drop in his implied probability on September 15.
Other significant price swings reported in the market lack clear causal events. The provided context indicates that several large movements, including spikes on September 10 and September 16, are inconsistent with the election timeline. With the vote scheduled for November 28, 2026, these price changes do not appear to reflect credible polling data or fundamental shifts in the race. They are more likely attributable to data misinterpretation or market noise.
  • Incumbent Chiang Wan-an is favored by prediction markets and expert analysis.
  • Shen Bo-yang faces a significant deficit; analysts see a profile-building campaign.

Who Wins and Why

Outcome Market Model Why
Shen Bo-yang 23.0% 19.8% Polls show Shen Bo-yang trailing the incumbent, with analysts suggesting his nomination builds national profile.
Chiang Wan-an 81.0% 75.4% Incumbent Mayor Chiang Wan-an is heavily favored for re-election in Taipei, a city that historically leans KMT.
Hsiao Wen-kan 1.0% 1.2% No specific information on Hsiao Wen-kan's campaign or viability suggests he is a minor contender.
Kuo Hsi 1.0% 1.2% No specific information on Kuo Hsi's campaign or viability suggests he is a minor contender.
Lin Chih-cheng 1.0% 1.2% No specific information on Lin Chih-cheng's campaign or viability suggests he is a minor contender.

Current Context

Conflicting information exists regarding the 2026 Taipei mayoral election. The 2026 Taipei mayoral election is scheduled for November 28, 2026, as part of Taiwan's local elections [1][2][3]. The winner has not been determined, as the election has not yet occurred [1][2][3]. However, one source states there is no 2026 mayoral election in Taipei, Taiwan, noting that its provided sources focus on 2026 elections within the United States [4].
Incumbent Chiang Wan-an and Legislator Puma Shen are primary candidates. The primary candidates for the Taipei mayoral election are the incumbent Mayor Chiang Wan-an of the Kuomintang (KMT) and Legislator Puma Shen of the Democratic Progressive Party (DPP) [5][6][7]. While prediction markets and some polling indicators currently favor Chiang Wan-an, other analyses and AI-based simulations suggest a tightening race [8][9][10][11][7].
Vote share will be critical for interpreting election outcomes. Political expert Yoshiyuki Ogasawara suggests Chiang's reelection is widely anticipated, though the outcome's significance will be measured by vote share [7]. Specifically, if Chiang exceeds 60% of the vote, or if Shen achieves over 45%, the latter would be seen as a symbolic victory for the DPP [7]. AI public opinion simulations show Chiang Wan-an with a slight lead, holding 33.9% support, 3.8 percentage points ahead of Shen Po-yang [8][9].
Sources (11)
  1. 12026 Taiwanese local elections - Wikipediaen.wikipedia.org
  2. 2Nov. 28 set as voting day for Taiwan's 2026 local electionstaipeitimes.com
  3. 3Local elections set for Nov. 28 with 19.65 million eligible voters - Taipei Timestaipeitimes.com
  4. 4United States mayoral elections, 2026 - Ballotpediaballotpedia.org
  5. 5DPP picks Puma Shen for Taipei mayoral race - Taipei Timestaipeitimes.com
  6. 6DPP Nominates Shen Po-yang for Taipei Mayor, Lai Ching-te Calls Him ‘Best Candidate’ - Vision Timesvisiontimes.com
  7. 7台北選情有變數?小笠原欣幸曝關鍵「預測結局」 蔣萬安這樣回 | 政治 | 三立新聞網 SETN.COMsetn.com
  8. 8AI民意模擬台北市長選戰:蔣萬安微幅領先沈伯洋tpoc.com.tw
  9. 9AI民意模擬台北市長選戰 蔣萬安支持度33.9%領先沈伯洋3.8個百分點 - 鏡週刊 Mirror Mediamirrormedia.mg
  10. 10台北市長最新網路投票出爐!「沈伯洋、蔣萬安看好誰當選?」破3萬票結果驚人 | 風生活綜合報導 | 風生活 - 風傳媒storm.mg
  11. 11https://polymarket.com/event/taipei-mayor-election-winner-20260813125857100polymarket.com

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.

Outcome: Shen Bo-yang

📉 September 20, 2026: 63.0pp drop

Price decreased from 89.0% to 26.0%

What happened: The 2026 Taipei mayoral election has not yet occurred, as it is scheduled for November 28, 2026 [1][2]. Therefore, there is no evidence of a 63.0 percentage point drop in Shen Bo-yang's prediction market price on September 20, 2026 [1][2]. As the described event did not take place, it is impossible to identify a driver for this movement.

📈 September 19, 2026: 32.0pp spike

Price increased from 22.0% to 54.0%

What happened: The primary driver of the 32.0 percentage point spike was likely market confusion, conflating "Shen Bo-yang" with the massive market volatility of Shengu Group (沈鼓集團), a Chinese stock experiencing extreme price surges and trading halts around September 18-19, 2026 [3][4][5]. Simultaneously, Shen Bo-yang experienced a surge in "online visibility" and public support, termed the "Ocean Current" (洋流), in September 2026, with his sound volume reportedly increasing fourfold [6][7]. This political phenomenon, widely reported in traditional news during September 2026, likely provided a genuine upward trend for his prediction market prospects [6][8][7]. While social media activity likely contributed significantly to Shen Bo-yang's "Ocean Current" and public awareness, the extreme magnitude of the 32.0 percentage point spike appears to have been primarily driven by the aforementioned market misidentification, with social media acting as a contributing accelerant to his overall rise.

Outcome: Chiang Wan-an

📈 September 16, 2026: 84.0pp spike

Price increased from 4.0% to 88.0%

What happened: The provided research indicates that the reported 84.0 percentage point spike in the prediction market price for Chiang Wan-an on September 16, 2026, appears to be a misunderstanding or misinterpretation, as there is no credible evidence of such a dramatic surge in polling data [9][10][11]. While the period around September 16 did see significant news and social media activity concerning the candidates, including disputes over "Chinese Taipei" and various online poll results, this activity does not correlate with an 84.0pp increase for Chiang Wan-an [9][10][11]. AI-simulated polling from September 9, 2026, showed Chiang Wan-an with a narrow 3.8 percentage point lead, reflecting a competitive race rather than a commanding lead [12][13][14]. Therefore, social media was irrelevant as a driver for the purported price move, as the foundational event itself is not credibly evidenced.

📉 September 15, 2026: 13.0pp drop

Price decreased from 17.0% to 4.0%

What happened: The primary driver for the 13.0 percentage point drop in Chiang Wan-an's prediction market price on September 15, 2026, was likely the release of mayoral satisfaction survey results. These surveys, reported as of mid-September 2026, indicated Chiang Wan-an ranked 4th among the six special municipalities and 13th nationally, with a score of 70 points [15]. Such relatively low approval ratings for the incumbent Mayor of Taipei would likely cause a significant decrease in confidence in his re-election prospects, coinciding with the market movement. No social media activity was identified as a primary or contributing driver for this specific price movement.

📈 September 10, 2026: 53.0pp spike

Price increased from 37.0% to 90.0%

What happened: The reported 53.0 percentage point spike for "Chiang Wan-an" as the "Taipei mayoral election winner" on September 10, 2026, is inconsistent with the facts, as the Taipei mayoral election is scheduled for November 28, 2026, and no winner would be declared by that date [16][17][18]. The research indicates that election results and related price movements on September 9, 2026, pertain to the Democratic primary for Mayor of Providence, Rhode Island, which involved different candidates [19][20][21]. Therefore, the described price movement for "Chiang Wan-an" in the Taipei market on that specific date likely stems from an erroneous conflation of election events, rather than any social media activity or news related to the Taipei election itself. Social media was irrelevant to this specific, likely misattributed, market event.
Sources (21)
  1. 1Taipei Mayor Election Winner Predictions & Odds 2026 | Polymarketpolymarket.com
  2. 2Taipei mayoral election winner? Odds & Predictions 2026 - Kalshikalshi.com
  3. 3Thirteenfold in Two Days: a State Machinery Maker Becomes China's Hottest Stock - Trending on Weibotrendingonweibo.com
  4. 49am Krypton: MOHURD Mandates Elevators for All 4+ Floor Residential Buildings | Scalpers Claim No Market Demand for iPhone 18 Pro | Shengu Group, This Year's Cheapest New Stock, Surges Nearly 300% Intraday on Second Trading Dayeu.36kr.com
  5. 5沈鼓集团相关异常账户暂停交易!上交所出手_九方智投9fzt.com
  6. 6選戰觀察/大罷免2.0還是韓流翻版? 「洋流」成形關鍵蔣萬安推一把 | ETtoday政治新聞 | ETtoday新聞雲ettoday.net
  7. 7[新聞] 沈伯洋聲量1個月暴漲4倍 2倍輾壓蔣萬安成黃金交叉 - Gossiping板 - Disp BBSdisp.cc
  8. 8沈伯洋「洋流」狂飆勢能 她曝最大推手:竟是藍營這超大咖 | 政治 | 三立新聞網 SETN.COMsetn.com
  9. 9台北市長最新網路投票出爐!「沈伯洋、蔣萬安看好誰當選?」破3萬票結果驚人 | 風生活綜合報導 | 風生活 - 風傳媒storm.mg
  10. 102026 台北市長選舉社群聲量(8/31–9/6):蔣萬安與沈伯洋的前五大話題完全沒有交集 - QSearch Blogqsearch.cc
  11. 11Taipei mayoral candidates differ over ‘Chinese Taipei’ election disputetaiwannews.com.tw
  12. 12AI民意模擬台北市長選戰:蔣萬安微幅領先沈伯洋tpoc.com.tw
  13. 13AI民意模擬台北市長選戰 蔣萬安支持度33.9%領先沈伯洋3.8個百分點mnews.tw
  14. 14【TPOC調查】AI模擬北市選戰「蔣萬安只領先沈伯洋3.8% 」 逾7成認兒子交換爭議扣分tw.news.yahoo.com
  15. 15嗨喊「市民給予肯定」!蔣萬安施政滿意度僅70分淪「六都老四」 | 政治 | 三立新聞網 SETN.COMsetn.com
  16. 162026 Taiwanese local elections - Wikipediaen.wikipedia.org
  17. 172026 local elections: County, city head candidates - Focus Taiwanfocustaiwan.tw
  18. 18s 2026 local elections - OCAC.R.O.C.(TAIWAN) – Newsocac.gov.tw
  19. 19September 9, 2026, election results - Ballotpediaballotpedia.org
  20. 20Mayoral election in Providence, Rhode Island, 2026 (September 9 Democratic primary) - Ballotpediaballotpedia.org
  21. 212026 Rhode Island Providence Mayor Vote History | DDHQintegration-votes.decisiondeskhq.com

4. Market Data

Contract Snapshot

A "Yes" resolution occurs if the specified candidate wins the Taipei mayoral election. Conversely, a "No" resolution occurs if the specified candidate does not win the election. The market begins or closes for trading on November 28, 12:00 AM EST, with a maximum payout date set for November 28, 2027. The provided content does not detail any special settlement conditions beyond the election outcome.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Chiang Wan-an $0.82 $0.46 81%
Shen Bo-yang $0.18 $0.95 23%
Hsiao Wen-kan $0.02 $0.99 1%
Kuo Hsi $0.02 $0.99 1%
Lin Chih-cheng $0.02 $0.99 1%
Tang Hsin-min $0.02 $0.99 1%

Market Discussion

The 2026 Taipei mayoral election is scheduled for November 28, 2026, as part of broader Taiwanese local elections [1]. As of September 21, 2026, the Taipei mayoral race is ongoing, with incumbent Chiang Wan-an seeking re-election [2]. Puma Shen is serving as the Democratic Progressive Party (DPP) candidate [2].

Sources (2)
  1. 1Local elections set for Nov. 28 with 19.65 million eligible voters - Taipei Timestaipeitimes.com
  2. 22026 Taiwanese local elections - Wikipediaen.wikipedia.org

5. Trust Index

Octagon Trust Index Kalshi 79 Good

Order book is critically thin.

Primary risk· Trade quality

How it adds up
Integrity80% of score90Strong
Trade quality20% of score37High Risk

Includes the cost to trade: a $10,000 order can't be filled here because the order book is too thin.

Trust score79Good

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

6. How do the economic and social policy platforms of Chiang Wan-an (KMT) and Shen Bo-yang (DPP) compare for the 2026 Taipei mayoral race?

Chiang Wan-an campaign focusExecutive record, modernization, and KMT leadership [1][2][3]
Shen Po-yang campaign focusMunicipal concerns, demographic decline, and youth welfare [4][5][3]
Shen Po-yang's forum proposalReplacing Twin Cities Forum with an "Unlimited Cities Forum" focusing on global cities [4][5][3]
Chiang Wan-an prioritizes his executive record and KMT leadership for reelection. Incumbent KMT Mayor Chiang Wan-an's 2026 Taipei mayoral campaign centers on his executive record, modernization efforts, and his prominent role as a KMT leader [1][2][3][6]. While seeking reelection, critics contend he has utilized his mayoral position more for national political aspirations than for fulfilling local administrative duties [1][2][3].
Shen Bo-yang emphasizes municipal issues and proposes a new international forum. In contrast, DPP candidate Shen Bo-yang's campaign focuses on municipal concerns, such as addressing demographic decline and promoting youth welfare [4][5][3]. He proposes replacing the traditional Twin Cities Forum with an "Unlimited Cities Forum," shifting its focus from Shanghai to major global cities like New York, London, Paris, and Tokyo [4][5][3]. The available research provides specific social policy details for Shen Bo-yang but lacks extensive information on detailed economic policy platforms for either candidate.
Sources (6)
  1. 1Question marks remain over Chiang Wan-an's potential reelection...taiwannews.com.tw
  2. 2EDITORIAL: Puma Shen's waves gaining size - Taipei Timestaipeitimes.com
  3. 3Puma Shen's Taipei Mayoral Ambitions: Style Over Substance...world.storm.mg
  4. 4Taiwan's 2026 local elections test the opposition allianceeastasiaforum.org
  5. 5Puma Shen: He Studied China's Cognitive Warfare... - Taiwan.mdtaiwan.md
  6. 6Taiwan's 2026 Local Elections Preview (2) -- The Big Six Special...kharistempleman.com

7. What is Shen Bo-yang's path to an upset victory in 2026, based on demographic targeting and district-level performance?

Taipei Mayoral Poll LeadApproximately 56-30% for Chiang Wan-an (vs. Shen Bo-yang) [1][2]
Shen Bo-yang Victory ProbabilityLess than 5-25% (prediction markets) [1][2]
Taipei Historical Electoral TrendChallenging district for DPP [2]
Shen Bo-yang faces a challenging path in the 2026 Taipei mayoral election. As of September 2026, no clear evidence indicates a specific, viable 'path to victory' for Shen based on demographic targeting or district-level performance [2]. Polls show that DPP candidate Puma Shen faces a significant deficit against incumbent KMT Mayor Chiang Wan-an, with Chiang holding a commanding lead of approximately 56-30% [2]. Prediction markets further reflect Shen's difficult position, giving him less than a 5-25% chance of victory [1][2]. Analysts characterize his nomination as a 'break glass' measure or a move to build his national or international profile, rather than a focused electoral strategy to flip the blue-leaning city [2].
Shen's campaign faces several significant hurdles in challenging the incumbent. These obstacles include his status as an untested candidate in local elections [3][2]. Further challenges stem from controversy surrounding his past NGO funding [3][4]. Additionally, Taipei has historically proven to be a challenging district for the DPP, contributing to the difficulties faced by Shen's candidacy [2].
Sources (4)
  1. 1Taipei Mayor Election Winner Predictions & Odds 2026 | Polymarketpolymarket.com
  2. 2Taiwan's 2026 Local Elections Preview (2) -- The Big Six Special...kharistempleman.com
  3. 3DPP Nominates Puma Shen for Taipei Mayor, Reigniting Scrutiny of...taiwannext.com
  4. 4DPP nominates Shen Bo-yang to challenge Taipei Mayor Chiang...terton.media

8. Beyond a simple win, what vote share percentages for Chiang Wan-an and Shen Bo-yang would analysts consider a strategic success or failure for their respective parties?

Chiang Wan-an 2022 Vote Share42% (2022 Taipei mayoral election) [1]
DPP 2022 Vote Share32% (2022 Taipei mayoral election) [1]
2026 Election PredictionHeavily favors Chiang Wan-an (as of September 2026) [2][3][4][5]
For Chiang Wan-an, a strategic success entails maintaining robust electoral support. His strategic success involves sustaining or surpassing his current popularity and the Kuomintang's (KMT) established presence in Taipei, building on his 42% vote share in the 2022 Taipei mayoral election [1]. Current prediction markets, as of September 2026, overwhelmingly indicate the incumbent Chiang Wan-an as the likely victor in the upcoming election [2][3][4][5].
For Shen Bo-yang, strategic success is more about image than winning. A strategic success for the Democratic Progressive Party (DPP) through Shen Bo-yang would involve improving upon their 2022 outcome of 32% or simply achieving a respectable vote share, given Taipei's historical political leanings [1]. Analysts perceive Shen's 2026 nomination primarily as a strategy to "burnish the DPP's national and international image," rather than a genuine bid for victory, due to his status as a polarizing, untested electoral candidate in a city that typically favors the KMT [1].
Sources (5)
  1. 1Taiwan's 2026 Local Elections Preview (2) -- The Big Six Special...kharistempleman.com
  2. 2https://polymarket.com/event/taipei-mayor-election-winner-20260813125857100polymarket.com
  3. 3Taipei mayoral election winner? Odds & Predictions 2026 - Kalshikalshi.com
  4. 4Will Puma Shen win the next Taipei Mayor election? | Paritypredictparity.com
  5. 5Taipei Mayor Election Winner - Polymarket Odds | CoinRithmcoinrithm.com

9. Which public opinion polls are considered the most reliable for tracking the 2026 Taipei mayoral election, and what is their release schedule?

Election DateNovember 28, 2026 [1][2]
Polling Blackout Period10 days before election day [2]
Incumbent Re-election ProbabilityOver 90% (as of September 21, 2026) [3][4][5]
The 2026 Taipei mayoral election is set for November 28, 2026. This election is part of Taiwan's broader "nine-in-one" local elections, despite initial information focusing on United States mayoral elections [6]. Further details confirm the specific scheduling of the Taipei election [1][2]. Candidate registration for this political contest is expected to conclude in early September 2026 [1][2].
Major Taiwanese organizations conduct polls without a set release schedule, including the TVBS Poll Center, My Formosa (美麗島電子報), and various media outlets like Mirror Media [1][7]. These groups frequently report on political races, but their publication of polls is typically based on strategic needs rather than a standardized schedule throughout the campaign period [1][7]. Taiwan's Central Election Commission (CEC) enforces a strict 10-day blackout period before election day, prohibiting the publication or sharing of public opinion polls, with significant financial penalties for violations [2].
Prediction markets strongly favor incumbent Chiang Wan-an for re-election, reflecting his consistent leads in public opinion polling. As of September 21, 2026, these markets indicate high confidence in the KMT mayor's victory, often showing implied probabilities exceeding 90% against his DPP challenger, Puma Shen [3][4][5].
Sources (7)
  1. 1Donovan's Deep Dives: Northern Taiwan's races come into focustaipeitimes.com
  2. 2Taiwan's 2026 Local Elections: (1) Previewing the Raceskharistempleman.com
  3. 3Taipei Mayor Election Winner Predictions & Odds 2026 | Polymarketpolymarket.com
  4. 4vrotlex | The World's Largest Prediction Marketvrotlex.com
  5. 5Will Chiang Wan-an win the next Taipei Mayor election? | Paritypredictparity.com
  6. 6United States mayoral elections, 2026 - Ballotpediaballotpedia.org
  7. 7The Prospects for Taiwan's 2024 Presidential and Legislative...globaltaiwan.org

10. What potential shifts in cross-strait relations before November 2026 could serve as a major catalyst impacting the Taipei mayoral race?

Election DateNovember 28, 2026 [1][2]
Incumbent MayorKMT Mayor Chiang Wan-an [3][4]
Primary ChallengerDPP candidate Puma Shen [3][4]
KMT and DPP cross-strait strategies heavily influence Taipei mayoral race. Divergent approaches to cross-strait relations are potential major catalysts for the Taipei mayoral race before November 2026. This includes the KMT's engagement strategy with Beijing, exemplified by Chair Cheng Li-wun's April 2026 visit, which contrasts with the DPP's "pro-independence" framing [5][6][7]. These differing stances could compel voters to prioritize national security concerns above local issues during the election period [5].
External pressures and Beijing's narrative strategy can sway voters. Other significant potential catalysts include external pressures such as increased military or economic actions from China, or shifts in US policy, including statements from President Trump [5]. Beijing actively attempts to portray the DPP as a "peace destroyer" while presenting the KMT as a partner for stability [6][8]. This narrative, coupled with the KMT's alignment with cautious US rhetoric regarding Taiwanese independence, could significantly affect voter sentiment in the final weeks leading up to the November election [6][8].
Sources (8)
  1. 1Nov. 28 set as voting day for Taiwan's 2026 local electionstaipeitimes.com
  2. 22026 Taiwanese local elections - Wikipediaen.wikipedia.org
  3. 3Taipei Mayor Election Winner Predictions & Odds 2026 | Polymarketpolymarket.com
  4. 42026 local elections: County, city head candidates - Focus Taiwanfocustaiwan.tw
  5. 5Taiwan's opposition struggles to sell China ties | East Asia Forumeastasiaforum.org
  6. 6China & Taiwan Update, May 29, 2026 - ISWunderstandingwar.org
  7. 7Positioning the KMT in the U.S.–China–Taiwan Triangle: Cheng Li...asiasociety.org
  8. 8China & Taiwan Update, May 29, 2026 | American Enterprise Instituteaei.org

11. What Could Change the Odds

Key Catalysts

The 2026 Taipei mayoral election is scheduled for November 28, 2026, as part of Taiwan's local elections [1][2][3]. The incumbent, Chiang Wan-an (KMT), is widely considered the frontrunner [4][5][6][7]. However, recent polls and AI simulations present varying margins, with some indicating a commanding lead for Chiang and others suggesting a tightening race against the DPP nominee, Puma Shen [4][5][6][7]. As of September 21, 2026, the election has not yet occurred [4][5][6][7].
Key election milestones include candidate policy platform presentations from November 13–27, 2026, and the drawing of ballot numbers on October 23, 2026 [2][3]. Official results are expected to be finalized by December 4, 2026 [2][3]. While prediction markets such as Polymarket and Kalshi are actively used for U.S. federal and state-level races, expert-curated sources provide no evidence of comparable market-based predictive coverage or identified bullish/bearish catalysts for the 2026 Taipei mayoral election [8][9][10].

Key Dates & Catalysts

  • Expiration: November 28, 2027
  • Closes: November 28, 2027
Sources (10)
  1. 12026 Taiwanese local elections - Wikipediaen.wikipedia.org
  2. 2Nov. 28 set as voting day for Taiwan's 2026 local electionstaipeitimes.com
  3. 3Taiwan sets date for 2026 local municipal electionstaiwannews.com.tw
  4. 4https://polymarket.com/event/taipei-mayor-election-winner-20260813125857100polymarket.com
  5. 5Taiwan's 2026 Local Elections Preview (2) -- The Big Six Special Municipalities - Kharis Templeman (祁凱立)kharistempleman.com
  6. 6AI民意模擬台北市長選戰:蔣萬安微幅領先沈伯洋tpoc.com.tw
  7. 72026 台北市長選情民調cc.tvbs.com.tw
  8. 8Prediction markets approach $200 million in settled contracts - Ballotpedia Newsnews.ballotpedia.org
  9. 9https://votes-docs.decisiondeskhq.com/2026-forecast-methodologyvotes-docs.decisiondeskhq.com
  10. 10Decision Desk HQ Votesvotes.decisiondeskhq.com

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