Strait of Hormuz traffic returns to normal by July 31?
Market resolution
Polymarket reports No as the winning outcome for the Strait of Hormuz traffic returns to normal by July 31 prediction market with a final probability of 100%. The market closed on Jul 31, 2026, 00:00 UTC. Final reported trading volume was $24.29M.
Final probabilities, volume, and open interest are sourced from Polymarket and were last synced at Aug 4, 2026 7:27 pm.
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A reopening rebound has not erased the market’s deadline problem. The wager turns on whether ship arrivals can sustain a Portwatch threshold before diplomacy, insurance markets, and carrier scheduling have fully adjusted.

The market’s heavy lean toward No is best read as a timing judgment. The Strait of Hormuz may be moving away from acute disruption, yet this contract needs a specific Portwatch print by July 31: a 7-day moving average of transit calls, measured as Arrivals of Ships, at or above 60. That creates a narrow path for Yes because political reopening, operational normalization, and a data-series threshold have to align within weeks.
The threshold turns reopening into a race against the calendar
The 7.5% Yes price sits against a rule that rewards any qualifying date before the deadline, so the market is not requiring months of stability. Even so, the 60-call threshold matters because a 7-day moving average dampens one-off rebounds. A single surge of delayed vessels can help, but the metric needs enough daily strength across a week to overcome prior weak days. That feature makes the odds sensitive to the shape of the rebound, not only its direction.
The volume and open interest suggest this has become a macro-security proxy rather than a niche shipping bet. With $14.33 million traded, $529,500 in liquidity, and $2.93 million in open interest, the price is absorbing views on Iran risk, oil-flow logistics, and the reliability of official reopening claims. The market-implied story is that the Strait can be legally or diplomatically open while the Portwatch series remains short of the contract’s definition of normal.
EIA’s rebound case still points beyond the market deadline
The strongest support for Yes comes from the U.S. Energy Information Administration’s July 7 statement that shipping traffic through the Strait had increased after the June 18 U.S.-Iran memorandum of understanding. The EIA also said it expected trade flows to return to near pre-conflict levels by year-end, with most shut-in production returning. For this contract, that wording cuts two ways: it confirms that reopening is real enough to affect official production forecasts, while its year-end timeline gives the market a reason to discount a July 31 Portwatch trigger.
That distinction matters because energy agencies can revise supply forecasts on the basis of partial recovery, rerouting expectations, and production restarts, while this market resolves on a shipping-count threshold. A refinery, producer, or insurer can adapt gradually; the contract cannot. If vessels return in stages as charterers assess war-risk premiums, naval protection, port congestion, and counterparty exposure, the EIA’s directional improvement may coexist with a No outcome.
Diplomatic language signals that operational risk has not cleared
AP’s July 9-10 reporting that U.S. officials were demanding Iran publicly confirm the Strait is open and stop attacks on ships is central to why the market can price reopening headlines cautiously. A demand for public confirmation implies that private assurances or the June 18 memorandum have not fully settled the risk calculus for carriers. Shipowners and cargo interests care about whether a route is usable, but they also care about whether the next transit could become a legal, military, or insurance incident.
This matters for the Portwatch threshold because the marginal ship is often the one with alternatives. Some cargoes must pass through Hormuz because of origin and destination constraints; others can wait, re-time, or shift exposure. If a portion of operators delays sailing until public guarantees harden, the 7-day average can stall below the level required for resolution even as headline flows improve. The No price therefore embeds an assumption that political fragility slows the last leg of normalization.
The hidden assumption is that ship behavior lags official announcements
The market’s structure favors a behavioral reading of the crisis. Official reopening reduces one barrier, yet vessel scheduling, crew risk decisions, hull-and-war insurance, naval coordination, and port-slot availability can lag by days or weeks. That lag is especially important because July 31 is a hard cutoff. A steady climb that reaches pre-conflict patterns in August or later has no value for Yes under the rules.
The clearest confirmation for the current pricing would be a Portwatch series that rebounds unevenly, with daily arrivals improving but the 7-day average unable to approach 60. A weakening signal would be several consecutive daily prints high enough to pull the moving average into the upper 50s, because the contract resolves on any qualifying date. The market could react sharply to the slope of the Portwatch line before the threshold is actually crossed.
| Input | Why it matters for this market |
|---|---|
| Portwatch 7-day average near 60 | Directly compresses the remaining distance to a Yes resolution. |
| Iran publicly confirms safe passage | Could reduce the political-risk discount embedded in shipping decisions. |
| Reports of new attacks or harassment | Would reinforce the view that traffic cannot stabilize before July 31. |
| Official forecasts shift toward faster recovery | Would challenge the assumption that normalization is mainly a year-end process. |
A brief traffic burst is the main counter-signal
The main failure mode for No is a short, concentrated catch-up wave. Because the rules require the Portwatch 7-day average to equal or exceed 60 for any date in the window, the market does not need durable year-end normalization. It only needs enough delayed ships to move through at once, combined with no fresh disruption, to lift the moving average over the line.
That scenario could develop if carriers interpret the U.S.-Iran memorandum as credible, if Iran gives the public confirmation U.S. officials requested, or if security conditions improve enough for insurers and charterers to release backlogged voyages. In that case, the EIA’s reopening thesis would become more relevant to the contract’s short clock. Until the Portwatch data show that sustained burst, the dominant market logic remains that reopening momentum is real but too slow and too politically fragile to satisfy the July 31 trigger.
Sources
Market details
- Resolution criteria
- This market will resolve to “Yes” if IMF Portwatch publishes a 7-day moving average of transit calls (“Arrivals of Ships”) for the Strait of Hormuz equal to or above 60 for any date between market creation and July 31, 2026. Otherwise, this market will resolve to “No”.
- Category
- Politics › Iran
- Close date
- July 31, 2026, 12:00 AM UTC
- Settlement source
- portwatch.imf.org
- Market rules summary
- Binary market. Payout is 1 USDC for a winning outcome, 0 USDC for a losing outcome. View full rules
Frequently asked questions
What was the final result of the Strait of Hormuz traffic returns to normal by July 31 prediction market?
Polymarket reports No as the winning outcome for the Strait of Hormuz traffic returns to normal by July 31 prediction market with a final probability of 100%. The final market snapshot includes $24.29M volume and $87.77K open interest. CryptoSlate last synced the final market data at Aug 4, 2026, 18:27 UTC.
How does the Strait of Hormuz traffic returns to normal by July 31 prediction market resolve?
This market will resolve to “Yes” if IMF Portwatch publishes a 7-day moving average of transit calls (“Arrivals of Ships”) for the Strait of Hormuz equal to or above 60 for any date between market creation and July 31, 2026. Otherwise, this market will resolve to “No”. Binary market. Payout is 1 USDC for a winning outcome, 0 USDC for a losing outcome. The settlement source listed for this market is Portwatch.