Polymarket odds for Israel–Iran ceasefire ease to 99.65% after Kuwait claim

Polymarket Ceasefire Ladder Reprices After Iran Missile-Claim Headline Hits the Tape

On Polymarket’s ceasefire-duration ladder, traders still price extremely high odds that the Israel–Iran ceasefire lasts through the next key dates, even as the front contract eased to 99.65% (down from 99.8%) on $1.05M volume. The move follows a fresh headline about Iran claiming a missile strike on a US base in Kuwait, and the ladder shows where confidence starts to break by late July and mid-August.

Key Takeaways

• Prediction: The leading strike is “ceasefire continues through July 18?” at 99.65% Yes (0.35% No).
• Basis: After a new Iran-related missile-claim headline, the front strike dipped slightly (99.8% to 99.65%), while longer-dated strikes still show a steep confidence drop-off.
• Timing: This ladder market resolves by 2026-08-31 23:59 UTC, with odds implying much lower confidence by August 15 (49% Yes) and August 31 (39.5% Yes).

A single headline catalyst hit the tape: Iran said it targeted a US base in Kuwait with missiles. The report was framed as an Iran statement and became a near-term trigger for how ceasefire-risk is being priced in continuously traded prediction markets.

Odds Curve Breakdown: $1.05M Volume, 99.65% Yes on July 18 vs 49% by Aug 15 and 39.5% by Aug 31

This is a price-ladder market, meaning each row is its own Yes/No contract for whether the ceasefire is still in place through that specific date, not a single contract that “settles at” a date. Even after the small downtick to 99.65% on the July 18 strike (99.65% Yes / 0.35% No), the curve shows traders assigning rising tail risk as the horizon extends: July 22 sits at 94% Yes / 6% No, July 31 at 67.5% Yes / 32.5% No, and August 15 flips to a near coin toss at 49% Yes / 51% No (with August 31 at 39.5% Yes / 60.5% No). The market’s $1.05M volume suggests sustained two-sided interest, but the ladder shape implies consensus on near-term continuity while disagreement concentrates in late-July to mid-August. The historical summary also points to strengthening consensus with low volatility and a +3.55pp move over both 24h and 7d, indicating that recent trading has generally pushed probabilities higher even if the very front strike just softened by 0.15pp.

Watch whether the ladder’s inflection points shift: if headline risk persists, the first place it should show up is a lower July 25 (80% Yes) and July 31 (67.5% Yes) rather than the already-near-certain July 18/July 20 strikes; also monitor whether August 15 stays near 50/50 as the market approaches the 2026-08-31 resolution window.

Cross-Contract Watchlist: How Ceasefire Tail Risk Can Spill Into Polymarket Macro and Crypto Volatility Markets

Zooming out from the ceasefire ladder itself, Polymarket traders are also watching adjacent contracts that can reprice macro and crypto vol in a hurry as headlines hit. 73.5% No on “Will the U.S. invade Iran before 2027?” ($45.72M volume) and 98.65% No on “Strait of Hormuz traffic returns to normal by July 31?” ($18.85M) function as fast-moving risk gauges, while the timeline-oriented “US x Iran Effective Ceasefire by…? (2 week pause)” sits at 53.5% for August 31 ($1.63M). For a more operational read-through, “Iran full airspace closure by…?” has August 31 at 49.5% ($4.97M), offering another venue where traders can express tail-risk views when the main ceasefire curve feels too binary.

Odds Trend

By the Numbers

• Platform: Polymarket
• Market: Israel x Iran ceasefire continues through…?
• 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: ~$1,053,984

Top strike rungs

+3 more strikes not shown

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