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Will TISZA win above 130 seats in the 2026 Hungarian parliamentary election?

KXTISZASEATS-26APR12-A130 · Elections · 2026-04-13
99%
Agent
98%
Market Price
+1.1%
Edge
97%
Confidence
Volume: 81,989
Spread: 1.2c
Days to resolution: 364
Markets in event: 11
Final Rationale
The 2026 Hungarian parliamentary election occurred on April 12, 2026, and near-final results (97-99% counted) confirm TISZA won 138 seats (95 SMD + 43 list), which is 8 seats above the 130-seat threshold. I ACCEPT the Devil's Advocate critique that my initial 2.3% residual uncertainty was slightly excessive: invalidating 9+ district results in an established democracy's election certification process would be historically unprecedented, and multiple independent sources confirm the same result. The market at 98.6% aligns closely with my adjusted estimate of 99%, with both reflecting near-certainty given the confirmed outcome and substantial buffer above the threshold. The only residual ~1% uncertainty accounts for the extraordinarily remote possibility of systematic reporting errors or unprecedented mass invalidation of district results during official certification.
Price vs. prediction
How the market moved after the agent's call. Solid blue line is the actual market price; dashed line is the agent's static forecast at $t{=}0$.
$n = 36$ follow-ups
1. Planner Opus · Fermi decomposition + tool plan
Tools chosen: article_search web_search kalshi_data wikipedia_lookup code_execution
Sub-questions (Fermi decomposition)
  1. Will TISZA receive more than 35% of the national list vote in the 2026 Hungarian parliamentary election? (w=0.35)
  2. Will TISZA win enough single-member district (SMD) seats to push their total above 130 seats combined with list seats? (w=0.30)
  3. Will opposition coordination (tactical voting or alliances) be sufficient to maximize TISZA seat gains beyond what raw vote share would suggest? (w=0.20)
  4. Will Fidesz lose its two-thirds supermajority (falling below ~133 seats), creating the mathematical space for TISZA to win 130+ seats? (w=0.15)
Planner reasoning
This question resolves based on the actual 2026 Hungarian parliamentary election result. Today is April 13, 2026, which is extremely close to or at the election date itself (Hungary's election was likely held around April 6-13, 2026). The resolution close time of April 12, 2027 gives a full year — suggesting results may already be known or imminent. Key structural factors: Hungary's 199-seat parliament uses a mixed system (106 SMDs + 93 national list seats). The system heavily favors the leading party through winner-takes-all SMDs. In 2022, Fidesz won ~54% of votes → 135 seats; the united opposition with ~35% won only 57 seats. For TISZA to win 130+ seats (65% of parliament), they would need either: (a) an extraordinary ~50%+ vote share, or (b) near-complete SMD dominance through tactical voting coordination. Reference class: In post-2010 Hungarian elections, the leading party routinely wins 133-135 seats with ~49-54% of the vote, due to systemic seat amplification. For an opposition party to reach 130 seats would require flipping the political dynamic completely — TISZA would essentially need to become the dominant party. Critical temporal note: The election may have already occurred (April 6 or 13, 2026). Web search and article search should reveal actual results. The Kalshi market price will be the most reliable signal if results are in. The threshold of 130 seats is very high — it's near the supermajority threshold (133 seats = two-thirds). Polling as of late 2025/early 2026 showed TISZA competitive but not dominant enough to achieve this. The key question is whether polls significantly underestimated TISZA support or whether opposition coordination in SMDs was near-perfect.
2. Research Parallel tool calls · legacy v2
ToolStatusTimeItemsSummary
article_search OK 0.1s -
web_search OK 66.0s -
kalshi_data OK 1.8s -
wikipedia_lookup OK 1.4s -
code_execution OK 0.0s -
3. Evidence Synthesis Sonnet · 12 items · legacy v2
#StrengthCredibilityDirectionSourceClaimPriced In
1 STRONG 95 ↑ UP web_search TISZA received approximately 53.6% of the national list vote in the April 12, 2026 Hungarian parliamentary election, far exceeding the 35% threshold. No
2 STRONG 92 ↑ UP wikipedia_lookup The 2026 Hungarian parliamentary election was held on April 12, 2026, with TISZA decisively beating Fidesz–KDNP and ending Orbán's 16-year tenure. No
3 STRONG 90 ↑ UP kalshi_data Kalshi market for TISZA above 130 seats sits at 98.60%, up +61.60% over 30 days, reflecting the confirmed election result. No
4 STRONG 95 ↑ UP web_search TISZA won 95 out of 106 single-member district seats, contributing to their total of 138 seats (43 list + 95 SMD), well above the 130-seat threshold. No
5 STRONG 92 ↑ UP wikipedia_lookup TISZA's 53.6% vote share translated into 138 seats (69% of parliament), achieving a two-thirds supermajority sufficient to amend the constitution. No
6 STRONG 75 ↑ UP code_execution Electoral system modeling estimated that ~55% vote share would yield ~131 seats; TISZA's actual 53.6% yielded 138 seats, consistent with model projections. Yes
7 STRONG 93 ↑ UP web_search TISZA won 95 of 106 SMD seats on 53.6% of the vote, suggesting the electoral system's winner-takes-all amplification worked strongly in their favor, consistent with effective vote consolidation. No
8 MODERATE 85 ↑ UP web_search Other opposition parties (Democratic Coalition, Hungarian Two-Tailed Dog Party) did not reach the parliamentary threshold, indicating that opposition votes were effectively consolidated behind TISZA. No
9 MODERATE 88 ↑ UP web_search Record turnout of nearly 79% — the highest in Hungary's post-Communist history — suggests a strong mobilization of anti-Fidesz voters behind TISZA. No
10 STRONG 95 ↑ UP web_search Fidesz–KDNP collapsed to just 55 seats with 37.8% of the vote, an 80-seat loss from its previous 135, far below the 133-seat supermajority threshold. No
11 STRONG 92 ↑ UP wikipedia_lookup The 2026 election Wikipedia article confirms Fidesz–KDNP was decisively beaten, ending their supermajority and government majority entirely. No
12 STRONG 88 ↑ UP kalshi_data Related Kalshi market for Fidesz–KDNP above 50 seats sits at 97.20%, consistent with the reported result of 55 seats — confirming Fidesz well below 133. No
Information Gaps
  • No final official certified results from the Hungarian National Election Office (Nemzeti Választási Iroda) have been directly cited — all results come from preliminary counts at 97-99% reporting.
  • No breakdown of how many SMD seats were won in each constituency, making it impossible to verify the 95 SMD figure independently from the single web search source.
  • No information on whether any legal challenges or recounts are pending that could alter the seat distribution.
  • No direct data on the final national list seat allocation formula and whether 43 list seats is the confirmed final figure.
Key Uncertainties
  • Whether preliminary results at 97-99% reporting will change materially when 100% of votes are counted (very unlikely to shift the outcome given the large margin).
  • Whether any post-election legal disputes or fraud claims could alter the certified results before the market resolves.
  • Whether the Kalshi market at 98.6% reflects a small residual uncertainty about final certification vs. actual doubt about the result.
Market Context
Price: 0.986 · 7d: +0.176 · 30d: +0.616
Volume: HIGH — 7,172 average daily contracts · Depth: MEDIUM
Reliability: HIGH — large price movement consistent with confirmed election results; high volume suggests well-informed market participants; 98.6% price reflects near-certainty of YES resolution based on actual reported results
4. Independent Forecaster Opus · No market price · legacy v2 Did NOT see market price
Independent estimate: 98% (96% confidence)
base rate
98%
97% conf
evidence driven
98%
97% conf
contrarian
97%
95% conf
Spread
1pp
Low disagreement
sq1: Will TISZA receive more than 35% of the national list vote in the 2026 Hungarian parliamentary election?
99%
The election occurred on April 12, 2026 — yesterday. Multiple sources confirm TISZA received approximately 53.6% of the national list vote, far exceeding the 35% threshold. With 97-99% of votes counted and an 18+ percentage point margin above the threshold, there is essentially no scenario where this changes. The only residual uncertainty is some extraordinary post-election annulment, which is vanishingly unlikely. P(YES) = 0.99.
sq2: Will TISZA win enough single-member district (SMD) seats to push their total above 130 seats combined with list seats?
98%
Multiple sources report TISZA won 138 seats total (95 SMD + 43 list), which is 8 seats above the 130 threshold. Even if final certification adjusts this by 1-2 seats due to recounts or corrections, TISZA would still be well above 130. The margin of 8 seats provides a substantial buffer. The only risk is a systematic error in reporting or a major legal challenge invalidating multiple district results, both of which are extremely unlikely. P(YES) = 0.98.
sq3: Will opposition coordination (tactical voting or alliances) be sufficient to maximize TISZA seat gains beyond what raw vote share would suggest?
98%
This has already occurred. TISZA won 95/106 SMDs on 53.6% of the vote, representing massive seat amplification (69% of seats from 53.6% of votes). Other opposition parties failed to reach the parliamentary threshold, indicating votes consolidated behind TISZA. Record 79% turnout further confirms effective mobilization. This sub-question is retrospectively confirmed. P(YES) = 0.98.
sq4: Will Fidesz lose its two-thirds supermajority (falling below ~133 seats), creating the mathematical space for TISZA to win 130+ seats?
99%
Fidesz collapsed to 55 seats with 37.8% of the vote — an 80-seat loss. This is confirmed by multiple sources. They are not just below 133; they're at 55. The mathematical space for TISZA to win 130+ seats clearly exists and was filled. P(YES) = 0.99.
Show full reasoning trace
base rate: Historically, no Hungarian opposition party has won 130+ seats since the current electoral system was established in 2014. However, the base rate is irrelevant here because the election has already occurred and results are reported.
evidence updates: The election was held yesterday (April 12, 2026). Multiple independent sources — web searches and Wikipedia — confirm TISZA won 138 seats (95 SMD + 43 list) with 53.6% of the national list vote. Fidesz collapsed to 55 seats. Record turnout of 79%. These are near-final results at 97-99% reporting. This is as close to a confirmed outcome as possible before official certification.
combination method: Weighted average of sub-questions, all of which are near-certainty given that the election has occurred and results are reported. The 8-seat buffer above the 130 threshold means even small adjustments in final counting cannot change the outcome. The only residual uncertainty (~2%) comes from: (1) possibility that preliminary results are systematically wrong, (2) legal challenges invalidating multiple district results, (3) the question resolving on some technicality not addressed in the evidence.
final: TISZA won 138 seats in the April 12, 2026 Hungarian parliamentary election, well above the 130-seat threshold. The election results are near-final. Probability of YES resolution: 98%.
ensemble: {'ensemble_count': 3, 'perspectives': {'base_rate': {'p_yes': 0.98, 'confidence': 0.97}, 'evidence_driven': {'p_yes': 0.98, 'confidence': 0.97}, 'contrarian': {'p_yes': 0.97, 'confidence': 0.95}}, 'spread': 0.01, 'individual_p_yes': {'base_rate': 0.98, 'evidence_driven': 0.98, 'contrarian': 0.97}}
5. Devil's Advocate Sonnet · legacy v2 Market price revealed
Challenges
  1. The forecaster's 97.7% estimate is reasonable but arguably slightly low given the strength of evidence. The election occurred yesterday with 97-99% of votes counted, TISZA has 138 seats (8 above threshold), and no credible mechanism exists to lose 8+ seats. The residual 2.3% uncertainty seems excessive for a near-confirmed outcome.
  2. The sub-question decomposition is somewhat redundant post-election. Sub-questions 1, 3, and 4 are all downstream of the same confirmed result (TISZA won 138 seats). They don't represent independent sources of uncertainty — they're all confirmed by the same evidence. The combination method treats them as semi-independent when they're actually fully correlated post-hoc.
  3. The information gaps cited (no official certification, no constituency-level breakdown, no legal challenge data) are legitimate but the forecaster may be slightly over-weighting these. Hungarian election certification is a procedural step that historically never reverses preliminary results at this margin. To lose 9+ seats in certification would be unprecedented in any established democracy.
  4. The 2% allocated to 'possibility that preliminary results are systematically wrong' or 'legal challenges invalidating multiple district results' could be slightly too high. Invalidating 9+ district results would require evidence of massive fraud — in an election where the opposition won decisively — which would be extraordinary and self-defeating for any challenger.
Suggested adjustment: +1pp
The forecaster's residual uncertainty of ~2.3% is slightly too high given the confirmed nature of the results with an 8-seat buffer. The mechanisms that could reverse this (systematic reporting error across multiple sources, invalidation of 9+ district results) are more remote than 2.3%. A probability around 0.99 is more appropriate, consistent with the evidence strength. This is a genuine reasoning issue about calibrating residual uncertainty for near-confirmed events, not a market-driven adjustment.
Market comparison: Forecaster: 97.7%, Market: 98.6%. The divergence is minimal (0.9%) and both are in the right range. The market's slightly higher confidence is marginally more appropriate given the strength of confirmed evidence (election already occurred, 8-seat buffer, multiple confirming sources). The small gap reflects the forecaster being very slightly too generous to tail risks.
6. Aggregator Opus · final calibrated forecast
99% (97% confidence)
The 2026 Hungarian parliamentary election occurred on April 12, 2026, and near-final results (97-99% counted) confirm TISZA won 138 seats (95 SMD + 43 list), which is 8 seats above the 130-seat threshold. I ACCEPT the Devil's Advocate critique that my initial 2.3% residual uncertainty was slightly excessive: invalidating 9+ district results in an established democracy's election certification process would be historically unprecedented, and multiple independent sources confirm the same result. The market at 98.6% aligns closely with my adjusted estimate of 99%, with both reflecting near-certainty given the confirmed outcome and substantial buffer above the threshold. The only residual ~1% uncertainty accounts for the extraordinarily remote possibility of systematic reporting errors or unprecedented mass invalidation of district results during official certification.