ManifoldPlay moneyPoliticsDevelopingUpdated 3h ago

Will the Massachusetts all-party primary voting format ballot measure pass?

As of Oct 13, 2026, 11:34 AM ET, Manifold priced this market at 31.0% (little changed over 24 hours). It had 1K mana of pool liquidity.

Market probability
31.0%
Little changed over 24 hours
Limited dataNot live — snapshot Oct 13, 11:34 AM ET

Play-money market (mana, not dollars) — the venue's feed doesn't report liquidity for this market, with broad trading across many accounts.

Price historyManifold

Source: Manifold price history

How credible was the move?

Methodology →

Move validity

Insufficient data

Consensus stability

Stable

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?

UnknownThin market

Pool liquidity

1K mana

Bid-ask spread

n/a

automated market maker

24h volume

0 mana

Total volume

857.3 mana

Play money: depth is in mana, so it says nothing about real-money conviction.

Who's trading

Whose opinion is this price?

Broad participation
19%of the traded money came from the single largest account

Accounts

11

Trades

14

over 97 days

Largest order

100 mana

537.1 mana traded across these 14 trades (last 97 days).

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

Recent trade activity$537.1 traded

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

What this market actually measures

In the Massachusetts November 2026 election, there will be a ballot measure on switching to an all-party primary voting format. Will it pass?

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

In the Massachusetts November 2026 election, there will be a ballot measure on switching to an all-party primary voting format. Will it pass? Resolves N/A if the question does not make it to the ballot for any reason. https://www.wgbh.org/news/politics/2026-06-22/high-court-clears-ballot-question-that-would-eliminate-party-based-primaries [link preview]

What could move this market next?

  • The market's deadline arrivesNovember 3, 2026 at 6:59 PM ET

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

Derived from the contract's own mechanics as of Oct 13, 2:21 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 ±21 pts.

Thin marketLegacy movement classifier: watch

What's happening

low 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
8Low
Where the price path tends to go next874 observed
  • Illiquid / quiet98%
  • Choppy / mean-reverting1%

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

DurabilityHigh· half-life —
PredictabilityStable

Secondary read: leaning toward Stale price.

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)1H0.06H0.024H0.07D0.0

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