Will Missouri Amendment 3 (repealing 2024 abortion-rights amendment) be approved in the November 3, 2026 election?
As of Oct 7, 2026, 1:46 AM ET, Manifold priced this market at 50.1% (down from 54.0% 24 hours earlier). It had Ṁ77 traded in the past 24 hours and Ṁ1K of order-book liquidity. probcast.co rates the support behind this price as moderate.
A repricing with partial backing — read the new probability with some caution.
The pricing has partial support: moderate trading volume.
How credible was the move?
Three separate questions — a move can be genuine while the latest price is still settling. Methodology →
Move validity
Is the move backed by real trading and depth?
ModerateThe pricing has partial support: moderate trading volume.
Consensus stability
Has the market settled at the new probability?
StableThe probability has held near its current level over the past several hours.
Contract clarity
Will the rules resolve without ambiguity?
HighThe resolution rules are relatively specific, with a named source and a defined deadline.
From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.
What this market actually measures
This market resolves YES if Missouri Amendment 3 (Shall the Missouri Constitution be amended to: Repeal the 2024 voter-approved Amendment providing reproductive healthcare rights, including abortion through fetal viability; Allow abortions for rape and incest (under twelve-weeks' gestation), emergencies, and fetal anomalies; Allow legislation regulating abortion; Ensure parental consent for minors' abortions; Prohibi…
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
This market resolves YES if Missouri Amendment 3 (Shall the Missouri Constitution be amended to: Repeal the 2024 voter-approved Amendment providing reproductive healthcare rights, including abortion through fetal viability; Allow abortions for rape and incest (under twelve-weeks' gestation), emergencies, and fetal anomalies; Allow legislation regulating abortion; Ensure parental consent for minors' abortions; Prohibit gender transition procedures for minors?) is approved by voters at the November 3, 2026 general election under its official approval rule: Simple majority of votes cast on the amendment (Mo. Const. art. XII, sec. 2(b)); takes effect 30 days after the election. Only the November 3, 2026 vote counts; earlier votes on similar proposals do not. YES means voter approval at this election, not that the measure is later implemented. What the votes mean (official summary): YES: Fair ballot language: repeals Art. I Sec. 36 (2024); allows restricting abortion to medical emergency, rape/incest under 12 weeks, and fetal anomalies; allows regulation of providers; requires informed consent incl. parental/judicial consent for minors; bars public funding (limited exceptions); prohibits gender transition procedures for minors. NO: Fair ballot language: leaves Art. I Sec. 36 (2024) in place; abortion stays available through fetal viability; no ban on gender transition procedures for minors. Results: resolves on the result certified by Missouri Secretary of State / Board of State Canvassers. It may resolve earlier once official returns or the Associated Press show the outcome cannot change and no recount is pending; if a recount or certified correction changes the outcome before resolution, the certified result controls. No vote: if the measure is removed from the ballot, a court orders its votes not to be counted, or the vote is postponed beyond November 3, 2026, the market resolves N/A. Later legal challenges: resolution follows voter approval as certified. A court later invalidating, enjoining or delaying the measure does not change the resolution. Starting probability: 45% is a starting seed, not a forecast. Basis: SLU/YouGov, Aug 13-24, 2026, 900 likely voters: 43% support / 44% oppose / 13% unsure (https://www.slu.edu/research/research-institute/big-ideas/slu-poll/-pdf/august-2026-ballot-measures-write-up.pdf).. Official source: https://www.sos.mo.gov/petitions/2026BallotMeasures
Why the odds moved
The probability fell 3.9 percentage points over the last 24 hours (54.0% → 50.1%).
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 arrivesNovember 4, 2026 at 7:00 AM ET
The contract must resolve based on what has happened by this date.
Derived from the contract's own mechanics as of Oct 7, 2:01 AM 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 ±22 pts.
What's happening
Recent movement was driven largely by one participant with little broad follow-through. The move may not represent consensus.
- One participant drove 97% of recent flow
- Move not broadly confirmed (2 participants)
Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.
More details — reliability score, dynamics, durability
- Illiquid / quiet99%
- Choppy / mean-reverting1%
Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.
Secondary read: leaning toward Thin market.
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.
Market data
24h volume
Ṁ77
Liquidity
Ṁ1K
Total volume
Ṁ77
- Category
- Politics
- Venue
- Manifold
- Open interest
- —
- Current probability
- 50.1%
- 7-day range
- 50.1% – 54.0%
- Resolves
- Nov 4, 2026