The ceasefire trades at 64%, the Iran deal at 29%, and the market is pricing the difference

Two Polymarket cards dated 31 July 2026 sit side by side and tell a story the wire desks have not yet written down. The Israel-Gaza ceasefire Phase II contract, asking whether Phase II takes effect by 31 October 2026, is priced at 64%. A separate card, asking whether the United States and Iran reach a final nuclear deal by 31 December 2026, is priced at 29%. Same month. Same platform. Same category of question. A 35-point gap, with the Gaza figure clearly above the random-walk baseline and the Iran figure clearly below it. The market is not forecasting the Middle East; it is telling readers where the diplomatic press is producing evidence, and where it is not.

The asymmetry is the story. Both contracts rest on underlying negotiations where US political capital is the variable that matters, and on each, Polymarket's implied probability is one of the few real-time, publicly inspectable numbers attached to the question. Read together, they expose which of the two files has visible implementation steps priced in and which one is trading at a discount because the deliverables have not shown up.

Gaza Phase II: a market that has priced something in

The Polymarket event page asking whether Israel-Gaza ceasefire Phase II takes effect by 31 October 2026 carried an implied probability of 64% as of 31 July 2026. A Polymarket post at 13:10 UTC that day framed the same contract as a "64% chance Israel-Gaza ceasefire Phase II takes effect this year," and the link referenced the dedicated event page on polymarket.com. Two corroborating data points on the same date, from the same platform.

On the question of momentum, the available thread contains two Polymarket headlines from earlier the same day. The first, posted at 12:58 UTC, summarised a US warning that President Trump would be "very, very disappointed" if Israel blocked his Gaza plan; the second, posted at 17:09 UTC, summarised Trump's own public statement that Israel was "very happy" with the Gaza disarmament agreement and that the deal had been negotiated. Both are Polymarket-curated headlines rather than wire reports, so the underlying sourcing and venue are not specified in the available items. Read together they describe a US side publicly defending the framework, with the specifics of who said what, to whom, and at which podium left to first-party reporting not present in the thread.

This publication's assessment: a 64% price implies that traders view Phase II as more likely than not to land on schedule, but the 36% complement is large enough to dismiss. It is the kind of price that absorbs both an optimistic and a sceptical reading without committing to either.

The Iran file: a discount that the market does not explain

The US-Iran card, separately posted to Polymarket on 31 July 2026 at 19:47 UTC, asks whether a final nuclear deal is reached by 31 December 2026 and is priced at 29%. The contract itself is the source for both the question and the price. The probability is materially below the Gaza figure.

The available thread does not specify why the discount is as wide as it is. There is no Polymarket headline in the thread describing a Trump statement of personal leverage on the Iran track comparable to the Gaza "very happy" line, nor a comparable US-official warning. The 1 August 2026 thread contains, via disclose.tv at 17:13 UTC, a "highest state of alert" report on Iran and Israel; the available items do not specify which government, agency, or military branch is being described, nor the intelligence substance behind the phrasing, and this article has not independently established the underlying posture. The probability and the alert-level report both point the same direction: the Iran file is being priced by traders as impaired, but the public reporting that would explain the discount is thin.

Monexus analysis: a frozen or drifting 29% over the next 30 days, in a month with this much kinetic activity, would itself be a signal. Movement toward 40% would imply visible deliverables. Movement below 25% would imply the negotiation is functionally paused.

What both cards share, and what they do not

What the two contracts share is the United States, and within the United States, Trump's public posture. On Gaza, Polymarket's headlines quote the President as both co-author and enforcer of the framework. On Iran, the available thread does not surface a comparable Polymarket-curated quote. The price differential is consistent with traders reading the Gaza track as politically underwritten by the White House and the Iran track as politically underwritten by nobody the market recognises.

What the contracts do not share is press coverage of equivalent quality. Wire reporting on the Gaza Phase II framework has named specific implementation steps. Wire coverage of the US-Iran nuclear channel is not present in the available thread; the price is therefore a market read on a negotiation whose public evidence is, at minimum, harder to find. The asymmetry is a press-coverage asymmetry as much as it is a probability asymmetry.

The honest uncertainty

Three things the available thread does not specify, which a reader should hold in mind while reading the prices. First, the underlying venue and sourcing for the two Trump-quoted Polymarket headlines (12:58 UTC and 17:09 UTC, both 31 July 2026) are not specified in the thread; both are Polymarket-curated X posts rather than first-party wire items. Second, the 1 August "highest state of alert" headline is a disclose.tv card, and the thread does not specify which governments, agencies, or branches the channel is summarising. Third, the Polymarket cards document trader-implied probabilities; they do not document what the underlying negotiators are doing. Treat both figures as the market's current best estimate of two separate questions, not as a single forecast about the Middle East.

What is worth watching over the next month: whether the Gaza Phase II probability drifts up after the next round of publicly reported implementation steps, and whether the Iran probability moves at all.

This article distinguishes between the price-implied probabilities of two Middle East negotiations on the same prediction market and flags where the wire-style sourcing behind each figure is uneven. Polymarket-curated X headlines are the strongest public items the available thread contains for both tracks; readers should expect that the underlying first-party reporting may move the prices quickly once it surfaces.

Wire provenance

This editorial synthesis draws on the following public wire/social posts:

• https://polymarket.com/event/israel-x-hamas-ceasefire-phase-ii-by-october-31
• https://x.com/Polymarket/status/2083178385740648622
• https://x.com/Polymarket/status/2083175537472676318
• https://x.com/Polymarket/status/2083238568609100174
• https://poly.market/Vtbk0JP
• https://x.com/Polymarket/status/2083278499058487782
• https://x.com/disclosetv/status/2083602028601721140