Will Strait of Hormuz ship traffic reach normal levels by July 31 2026?

What is happening now

Recent diplomatic activity has kept the Strait of Hormuz at the centre of global attention. Iran’s joint military command announced that the waterway would be closed to vessel traffic, citing Israeli strikes in Lebanon, while U.S. Vice President JD Vance said Washington sees no evidence of a shutdown and that the strait remains open Blockchain.News. At the same time, senior U.S. officials indicated that Iran has agreed to a 60‑day toll‑free passage period for commercial ships, a concession tied to broader cease‑fire talks Blockchain.News. These mixed signals have driven the Polymarket contract to fluctuate, with the “No” outcome currently holding a slight edge.

How the market is structured

The market is a binary contract titled “Strait of Hormuz traffic returns to normal by July 31?” (Polymarket market ID 2176262). It has only two outcomes:

• Yes – a 7‑day moving average of ship arrivals published by IMF Portwatch of 60 or more for any date up to 31 July 2026.
• No – the threshold is never reached.

As of the latest data (22 June 2026), the “No” side is priced at $0.505 (50.5 % probability) and the “Yes” side at $0.495 (49.5 %). The contract has attracted roughly $7.8 million in total volume, with about $0.5 million traded in the last 24 hours, indicating active two‑sided interest Polymarket.

Path to the leading outcome

For the current leader – the “No” outcome – to be confirmed, IMF Portwatch must fail to publish a 7‑day moving average of arrivals that meets or exceeds 60 before the resolution deadline of 31 July 2026. The most recent Portwatch release (early June 2026) showed a moving average of roughly 57, well below the threshold IMF Portwatch. If subsequent weekly reports continue to stay under 60, the market will automatically resolve to “No”. This outcome aligns with the observable reality of reduced shipping volumes, Iran’s repeated statements about a closure, and the limited impact of the proposed 60‑day toll‑free window on overall traffic levels.

What could change the pricing

Several concrete events could flip the market toward the “Yes” side:

• IMF data shift: A Portwatch publication that shows a 7‑day moving average of 60 or higher, even for a single day, would trigger an immediate “Yes” resolution.
• Diplomatic breakthrough: A successful conclusion of the Switzerland‑based U.S.–Iran talks that leads to the lifting of Iran’s closure and a measurable increase in vessel transits.
• Operational change: Iran officially re‑opens the strait and commercial traffic spikes, causing the Portwatch average to climb above the 60‑ship mark.
• Data correction: If an earlier “No”‑qualifying figure is later corrected upward due to clerical errors, the market may retroactively meet the threshold.

Any of these developments would likely be reflected quickly in the “Yes” price, which is currently just under 50 %.

Editorial read

From a market‑structure perspective, the contract is a straightforward binary that hinges on a single, verifiable data point from an authoritative source. The current pricing favours “No” (50.5 %) not because traders doubt the possibility of a reopening, but because the latest IMF shipping data still sits below the 60‑vessel threshold and because Iran’s recent statements have reinforced the perception of an ongoing closure. The substantial liquidity – over $800 k of usable depth and nearly $2 M of open interest – means that price moves can be absorbed without dramatic slippage, but also that any new information, especially a fresh Portwatch release, will cause a swift re‑pricing.

Given the July 31, 2026 deadline, traders have a clear window to monitor weekly Portwatch updates. Until a qualifying 7‑day average is published, the “No” outcome remains the logical leader, supported by both the data trend and the geopolitical context of a contested strait. Should diplomatic progress produce a measurable rise in ship arrivals before the deadline, the market could flip to “Yes” with little warning, making the contract highly sensitive to real‑time shipping statistics rather than speculation alone.