As of Oct 18, 2026, 2:09 PM ET, Polymarket priced this market at 0.1% (little changed over 24 hours). It had $27.3K traded in the past 24 hours, $95.9K of order-book liquidity and a bid-ask spread of 0.1 pts. probcast.co rates the support behind this price as moderate.
Thin market where small orders can move the price, with broad trading across many accounts.
Source: Polymarket price history
Is the move backed by real trading and depth?
The pricing has partial support: healthy trading volume and market depth, a tight spread.
Has the market settled at the new probability?
The probability has held near its current level over the past several hours.
Will the rules resolve without ambiguity?
The resolution rules are relatively specific, with a named source and a defined deadline.
Two different questions: how hard the price is to move, and whose trading set it.
How hard is it to move this price?
Order-book liquidity
$95.9K
Bid-ask spread
0.1 pts
24h volume
$27.3K
Total volume
$129K
It would take roughly $466.9 of buying to move the price up by ~5 pts.
Little money on the book — a modest order can move this price, so treat swings with care.
Whose opinion is this price?
Accounts
43
Trades
200
over 3 days
Largest order
$20
$72.7 traded across these 200 trades (last 3 days).
Many independent accounts traded — the price reflects a crowd, not one trader.
From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.
The second round of the presidential election is scheduled to take place in Brazil on October 25, 2026. This market will resolve according to the margin of victory between the top two candidates in the second round of the next Brazil Presidential Election.
This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.
The second round of the presidential election is scheduled to take place in Brazil on October 25, 2026. This market will resolve according to the margin of victory between the top two candidates in the second round of the next Brazil Presidential Election. For the purpose of this market, the “margin of victory” is defined as the absolute difference between the percentages of valid votes received by the first- and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If a candidate other than Flávio Bolsonaro or Luiz Inácio Lula da Silva receives the most valid votes in the second round, or if the top two candidates receive exactly the same number of valid votes, this market will resolve to "Other". This market will resolve based on the official vote count once the vote count has been made official. If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official. 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., https://dadosabertos.tse.jus.br/).
The contract must resolve based on what has happened by this date.
Derived from the contract's own mechanics as of Oct 18, 2:18 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.
Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±12 pts.
A tight, deep, quote-driven book with little executed flow. The price is stable but reflects resting quotes more than active trading.
The latest price is a usable but caveated read — weigh it with the market state.
Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.
Secondary read: leaning toward Trading normally.
A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.