PolymarketPoliticsLikely noiseUpdated 6m ago

Will Olivia Chow win the 2026 Toronto mayoral election?

As of Oct 20, 2026, 7:43 PM ET, Polymarket priced this market at 63.5% (down from 75.5% 24 hours earlier). It had $45.9K traded in the past 24 hours, $73.4K of order-book liquidity and a bid-ask spread of 1.0 pts. probcast.co rates the support behind this price as weak.

Market probability
63.5%
−12 percentage points
over 24 hours75.5% → 63.5%
Moving fastBig move, weak backingResolving soon

Thin market where small orders can move the price — and today's move was spread across many accounts.

Price historyPolymarket

Source: Polymarket price history

How credible was the move?

Methodology →

Move validity

Weak

Consensus stability

Unsettled

Contract clarity

High

Can you trust this price?

Two different questions: how hard the price is to move, and whose trading set it.

Market capacity

How hard is it to move this price?

ThinTight spread

Order-book liquidity

$73.4K

Bid-ask spread

1.0 pts

24h volume

$45.9K

Total volume

$232.8K

It would take roughly $11.8K 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.

Who's trading

Whose opinion is this price?

Broad participation
22%of the traded money came from the single largest account

Accounts

116

Trades

200

over 32h

Largest order

$7.1K

$32.1K traded across these 200 trades (last 32h).

Many independent accounts traded — the price reflects a crowd, not one trader.

Recent trade activity$32.1K traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

The 2026 Toronto mayoral election is currently scheduled to be held on October 26, 2026. This market will resolve according to the candidate who becomes the next mayor of Toronto as a result of this 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.

View full official resolution rules

The 2026 Toronto mayoral election is currently scheduled to be held on October 26, 2026. This market will resolve according to the candidate who becomes the next mayor of Toronto as a result of this election. Temporary, interim, or placeholder mayors appointed before the election will not be considered. If the result of this election isn't known by June 30, 2027, 11:59 PM ET, the market will resolve to "Other". The primary resolution source for this market will be a consensus of credible reporting; however, if there is any ambiguity in the results, this market will resolve according to official information from Toronto.

Why the odds moved

The probability fell 12.0 percentage points over the last 24 hours (75.5% → 63.5%).

No verified catalyst has been linked to this move yet. ProbCast does not attribute moves to news without evidence connecting the timing of a specific report to the repricing.

What could move this market next?

  • The market's deadline arrivesOctober 26, 2026 at 11:59 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Oct 20, 7:49 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

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 ±27 pts.

Thin marketLegacy movement classifier: noisy

What's happening

medium classifier confidence
Thin market

Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.

  • Thin book and/or wide spread.

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
6Low
Where the price path tends to go next49 observed
  • Thin-liquidity spike74%
  • Choppy / mean-reverting13%
  • Illiquid / quiet6%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityMedium· half-life ~2h
PredictabilityElevated irreducibility

Secondary read: leaning toward Trending.

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.

Change (pts)1H-2.06H-1.024H-12.07D-12.0

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