Polymarket odds rise to 70.5% for Iran Hormuz fees by Dec 31

Polymarket Reprices Iran “Hormuz Fees” Ladder After Renewed US‑Iran Strait Risk Headlines

Polymarket traders are pricing a higher likelihood that Iran will charge Hormuz fees by later-2026 dates, with the leading ladder strike at 70.5% and $1.03M in matched volume. The move follows reports of renewed US-Iran hostilities around the Strait of Hormuz, and the market’s strike-by-strike curve shows where traders draw the timing line.

Key Takeaways

• Prediction: The leading Polymarket ladder outcome is “by December 31” at 70.5% implied Yes (29.5% No).
• Basis: After the Hormuz security backdrop, the ladder prices a low near-term chance but a much higher late-2026 chance, concentrating confidence in the later strikes.
• Timing: The market resolves on 2026-08-31 23:59 UTC; the last 24h and 7d move is +15.5 percentage points with a bullish, strengthening-consensus summary.

A report says the US carried out a third consecutive night of strikes against Iran ahead of a reinstated naval blockade of Iranian ports, while Iran reported retaliatory actions in and around the Strait of Hormuz. The account describes attacks and explosions across Iran’s southern coast and the strait area, plus claimed strikes on vessels and regional targets as both sides contest control of the waterway.

Odds Curve & Liquidity Snapshot: 70.5% on Dec 31 With $1.03M Matched; +15.5pp in 24h/7d Across Key Strikes

This is a price-ladder market: each date is its own separate Yes/No contract for whether Iran charges Hormuz fees by that strike, rather than a single bet that “settles” at a specific date. The curve shows a steep timing gradient: July 15 is priced at 4.75% Yes / 95.25% No, July 31 at 18.0% Yes / 82.0% No, August 31 at 52.5% Yes / 47.5% No, and December 31 at 70.5% Yes / 29.5% No, signaling traders see the near-term window as unlikely while assigning meaningfully higher odds to later action. The latest tick in the leading strike is a small uptick (70.5% vs 70.0%, +0.5pp) on $1,028,139 matched volume, while the historical summary flags a bullish trend with moderate momentum and moderate volatility. With change_24h and change_7d both at +15.5pp and “consensus: strengthening,” the repricing reads less like a single headline spike and more like a sustained shift toward the late-2026 timing buckets, even as the ladder keeps substantial uncertainty around the August 31 resolution window.

Watch whether pricing continues to migrate from the mid-curve (August 31 at 52.5% Yes) into the later strikes (October 31 at 65.5% Yes and December 31 at 70.5% Yes), or whether the curve flattens—an early sign traders are pulling probability back toward the nearer dates ahead of the 2026-08-31 23:59 UTC resolution.

Related Polymarket Contracts Traders Watch Next: Strait‑Risk Energy/Shipping Shocks, Iran‑US Escalation, and Macro‑Crypt

If you’re tracking how traders are hedging the broader Iran risk complex on Polymarket, several adjacent contracts are drawing heavy attention. “Will the U.S. invade Iran before 2027?” sits at 80.5% No on $41.36M volume, while “US-Iran Final Nuclear Deal by…?” is pricing 30.5% for “December 31” on $9.84M. On the timing side, “Iran announces withdrawal from MOU negotiations by…?” leads at 37.0% for “August 15” with $4.91M matched, and “Iran full airspace closure by…?” is at 43.5% for “August 31” on $3.58M—useful reads for how sentiment is shifting across diplomatic, military, and disruption-style outcomes.

Odds Trend

By the Numbers

• Platform: Polymarket
• Market: Iran charges Hormuz fees by…?
• 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: ~$1,028,139

Top strike rungs

+1 more strikes not shown

Related News