Polymarket prices US-Iran ceasefire by Aug 31 at 53.5% as Knesset dissolves

Israel Election Catalyst Hits Polymarket Ceasefire Ladder—How Traders Reprice “Effective Ceasefire by Aug 31”

On Polymarket’s “US x Iran Effective Ceasefire by…? (2 week pause)” ladder market, the leading rung sits at 53.5% for “by August 31,” with $543,019 matched and a flat last print. The trigger backdrop is Israel’s parliament dissolving ahead of an October election, but the pricing lens here is how traders are distributing probability across the earlier date strikes.

Key Takeaways

• Polymarket’s leading outcome is “Effective ceasefire by August 31?” at 53.5% Yes (46.5% No).
• Despite the election catalyst in the news cycle, the market is not paying up for near-term ceasefire timing: July 18 is just 4.7% Yes and July 24 is 15.0% Yes.
• The market’s resolution date is 2026-08-31 23:59 UTC, with a flat 24h and 7d change (0.0 pp) in the summary stats.

Israel’s parliament dissolved, setting an October 27 national election. The report frames the vote as a referendum on Prime Minister Benjamin Netanyahu’s political survival and the wars on Gaza, Lebanon, and Iran, and says the Knesset passed late-session laws including party funding and changes to media regulation and conscription policy.

Odds Curve & Liquidity Snapshot: 53.5% by Aug 31 on $543K Matched vs 35.0% by Aug 14, 21.5% by Jul 31, 4.7% by Jul 18

This is a price-ladder market: each date is its own binary “by X date?” contract, so “Yes” means an effective ceasefire is achieved by that strike, not that the market settles at a single date. Traders currently imply 53.5% Yes / 46.5% No for “by August 31,” versus 35.0% Yes / 65.0% No for “by August 14,” and just 21.5% Yes / 78.5% No for “by July 31” (with the shortest-dated “by July 18” at 4.7% Yes / 95.3% No). Even with $543,019 matched, the contract-level move is flat at 53.5% right now, while the historical summary flags a bearish trend with moderate momentum and a reversal_detected=true—consistent with earlier intraperiod strength fading back below the last-five average (latest 53.5% vs avg_last_5 of 56.7). The contrast is what prediction markets do well: instead of a single headline-driven “ceasefire likely/unlikely” narrative, the ladder forces traders to price the timing curve, and the curve remains heavily discounted for the next one to two weeks despite the broader political catalyst in the background.

Watch whether odds migrate from the August 31 rung into earlier strikes (Aug 14 or Jul 31) as new, time-specific signals emerge; a shift there would indicate traders are upgrading near-term timing rather than just maintaining a vague end-of-month probability.

Cross-Market Watchlist: How a Shift Into Earlier Strikes Signals Spillover Into Other Polymarket Macro & Crypto Contract

If you’re tracking whether timing risk is getting pulled forward on Polymarket, it also pays to scan adjacent contracts where traders express broader macro spillovers in cleaner, single-outcome terms. The biggest liquidity is sitting in “Will the U.S. invade Iran before 2027?” (77.0% No, $43,683,415 volume) and “Iran leader end of 2026?” (78.25% Mojtaba Khamenei, $30,175,653), while operational-risk pricing shows up in “Strait of Hormuz traffic returns to normal by July 31?” (98.9% No, $17,359,367). For shorter-dated signal checks, “Iran full airspace closure by…?” (42.5% August 31, $4,254,351) and “Iran announces withdrawal from MOU negotiations by…?” (21.5% August 15, $6,501,894) can move on discrete headlines even when the broader curve stays rangebound.

Odds Trend

By the Numbers

• Platform: Polymarket
• Market: US x Iran Effective Ceasefire by…? (2 week pause)
• Contract type: Price strike ladder: each rung has separate Yes/No; Yes means the spot price is above that USD strike at settlement.
• Resolution window: Aug 31, 2026 (UTC)
• Status: Active (open for trading)
• Volume: ~$543,019

Top strike rungs

+1 more strikes not shown

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