Polymarket odds for US-Iran invasion by 2027 bounce to 31.5% on $44.6M

Polymarket “U.S. Invade Iran Earlier than 2027” Jumps to 31.5% Sure as Merchants Reprice Danger Into the 2026-12-31 Decision Wind

On Polymarket, the contract “Will the U.S. invade Iran earlier than 2027?” is priced at 31.5% Sure (68.5% No) on $44.64M quantity, a pointy +20.0 percentage-point bounce from 11.5%. The one linked headline is unrelated sports activities protection, so this learn focuses on the chances transfer, liquidity sign from quantity, and the way the binary contract resolves.

Key Takeaways

• Polymarket implies 68.5% “No” and 31.5% “Sure” on a U.S. invasion of Iran earlier than 2027.
• The market repriced sharply greater for “Sure” (+20.0pp from 11.5% to 31.5%) regardless of the supplied information hook being unrelated, pointing to trader-driven positioning somewhat than this headline.
• Settlement is tied as to whether an invasion happens by 2026-12-31; latest tape exhibits choppiness even because the abstract flags a bearish 24h/7d transfer of -2.0pp.

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Market Microstructure: $44.64M Quantity, 31.5% Sure vs 68.5% No, and a +20.0pp Odds Shock Above the 17.9% Current Common

This can be a binary Polymarket contract: “Sure” pays out if the U.S. invades Iran by the 2026-12-31 decision date, and the present display screen value of 31.5% is the market’s implied likelihood of that end result (with “No” at 68.5%). The bounce from 11.5% to 31.5% is a +20.0pp repricing, however “No” nonetheless leads—so merchants have moved from near-dismissal of the state of affairs to a significant minority likelihood somewhat than a base case. Quantity at $44.64M suggests this can be a closely traded line the place value is being constantly up to date, but the supplied historic abstract concurrently exhibits a bearish short-term drift (change_24h -2.0pp; change_7d -2.0pp) and a reversal_detected flag, per disagreement and whipsaw somewhat than one-way conviction. The identical abstract’s latest_odds of 11.5% and avg_last_5 of 17.9% spotlight how far the present 31.5% sits above latest averages, reinforcing that this can be a step-change transfer somewhat than a gradual development.

Watch whether or not “Sure” holds above the recent-average zone (avg_last_5: 17.9%) or mean-reverts towards the historic abstract’s newest reference (11.5%), and whether or not quantity continues to construct whereas “No” stays the main end result (68.5%) into the 2026-12-31 decision window.

Cross-Contract Watchlist: How This Geopolitical Danger Premium Connects to Polymarket Macro, Elections, and Crypto Volatil

Zooming out from the headline contract, Polymarket merchants are additionally triangulating the identical threat premium throughout adjoining traces that may reprice shortly as timelines shift. On “Iran chief finish of 2026?”, Mojtaba Khamenei leads at 73.5% on $32.36M quantity, whereas “Strait of Hormuz site visitors returns to regular by July 31?” has “No” at 98.85% on $17.74M quantity. Nearer-dated timing markets like “US x Iran Efficient Ceasefire by…? (2 week pause)” (August 31 at 48.5%) and “Iran proclaims withdrawal from MOU negotiations by…?” (August 15 at 27.0%) supply cleaner catalysts, making them helpful cross-checks for whether or not sentiment is shifting on de-escalation, management, or logistics somewhat than a single binary end result.

Odds Development

By the Numbers

• Platform: Polymarket
• Market: Will the U.S. invade Iran earlier than 2027?
• Decision window: Dec 31, 2026 (UTC)
• Standing: Lively (open for buying and selling)
• Main implied prob.: 31.5%
• Quantity: ~$44,643,687
• High outcomes: Sure: Sure 31.5% / No 68.5%; No: Sure 31.5% / No 68.5%

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