PoliticsMulti-outcomeExpires Oct 4, 2026
Creator

Will União Brasil (UNIÃO) win the most seats in the next Brazilian Senate election?

Probability

5¢

1h

+1.3pp

24h

+1.3pp

24h Vol

$0.00

Liquidity

$12.1K

Research loop

Inspect the market

Read the move, holders, recent trades, source, and resolution risk before saving anything.

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Canonical status

confidence: high

Source status (Polymarket)

active

Derived status (Orrery)

LIVE

Reason

Active market, expiry beyond the near-expiry window.

Resolution & Risk

LOW risk
End date
Oct 4, 2026
UMA status
n/a
Resolution source
Primary
consensus of credible reporting
Type
News consensus
Confidence
extracted · medium
Market type
Multi-outcome (neg-risk)
  • Part of a multi-outcome event (neg-risk): only one market can resolve YES.
  • Wide spread (6.6¢) — liquidity risk on entry/exit.
Read full market rules on Polymarket

Probability (last 7 days)

+1.3pp 7d
1007550250
5¢
May 11, 2026, 11:00 UTCMay 18, 2026, 10:23 UTC
updated 10:23:21 UTC·src:Polymarket CLOB·snap:snap_2026-05-18T10-23Z

Why did it move?

Structured · 3 factors
  • 01
    Price move

    Up 1pp over 24h

    Now 5¢; +1.3pp in the last hour.

  • 02
    Active signal

    Resolution-risk observation firing

    Spread is wide enough that intraday moves overstate any tradeable edge.

  • 03
    Spread cost

    Wide spread — 6.6¢

    Bid-ask spread is wide enough that intraday moves overstate any tradeable advantage. Most of the headline pp move would be eaten by spread on a market order.

What to track next

  • Verify the resolution source on this page — exchange feed, official release, news consensus — before treating any move as new information.

Verification actions only — never trade recommendations.

Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.

Timeline

critical · price · trade flow

Critical

  • Oct 4, 00:00 UTCScheduled resolution

    Market resolves in 3325.6h

    LOW
  • 10:23Signal

    Resolution risk

    Spread is wide enough that intraday moves overstate any tradeable edge.

    LOW

Price movement

+1.3pp over the last 24h, now 5¢.

updated 10:23:21 UTC·src:Polymarket CLOB·Polymarket Data

Active signals

Recent Trades

No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.

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updated 10:23:21 UTC·src:Polymarket Data

Related Markets

14
Same eventNext Brazil Senate Election: Most Seats Won
Category · Politics

Market Description

The next federal Senate election is scheduled to take place in Brazil on October 4, 2026, in which two-thirds of the Senate’s 81 seats will be contested. This market will resolve according to the political party that wins the greatest number of seats in the next Brazilian Senate election. Only seats contested in the next Brazilian Senate election will be considered. If the result of this election isn't known definitively by June 30, 2027, 11:59 PM ET, the market will resolve to "Other". This market will resolve based on the result of the election, as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Brazilian government, specifically the Superior Electoral Court (Tribunal Superior Eleitoral, TSE) (e.g., www.tse.jus.br/eleicoes/resultados-eleicoes).

Why this category?

confidence: high

Category

Politics

Source

Keyword rule

Matched term

election

Reason

Question text contains the high-signal keyword "election" — matched the Politics rule.

Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.

FAQ — questions readers actually ask

What is the current Polymarket probability for "Will União Brasil (UNIÃO) win the most seats in the next Brazilian Senate election?"?

As of Mon, 18 May 2026 10:23:21 GMT, YES is priced at 5% implied probability on Polymarket. The price changed +1.3pp in the last 24 hours, +1.3pp in the last hour, and +1.3pp in the last 7 days.

When does this market resolve?

This market resolves by Oct 4, 2026 (2026-10-04T00:00:00.000Z). Resolution is determined from the market description on Polymarket.

What source determines the outcome?

Resolution is sourced from the market description on Polymarket. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.

How much is being traded on this market?

$0.00 of trading volume in the last 24 hours. Lifetime volume on Polymarket: $957.83. Open liquidity in the YES/NO orderbooks: $12.1K. Spread between best bid and best ask: 6.6¢.

Is this a trade recommendation?

No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.

How fresh is this data and where does it come from?

This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.

Alerts

¢
Deliver

In-app banners fire as soon as a rule is satisfied. Email digests are wired to a server-side cron and continue while your tabs are closed. Telegram and Discord are planned — every existing rule will keep working as channels light up.

Top Holders

13 wallets
Open on Polymarket