Polymarket

Strait of Hormuz Gridlock: Prediction Market Leans 'No' on May Traffic Normalization Amid Ongoing Crisis

A Polymarket prediction market is heavily favoring 'No' on Strait of Hormuz traffic returning to a 7-day average of 60 transit calls by May 31, 2026, reflecting severe disruptions from the ongoing Iran-US conflict and new Iranian shipping controls.

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— 3 min read

The global shipping industry remains in turmoil as a Polymarket prediction market assesses the likelihood of a return to normal traffic levels in the Strait of Hormuz by the end of May 2026. The market, which resolves to 'Yes' if the IMF Portwatch 7-day moving average of transit calls for the Strait of Hormuz reaches or exceeds 60 by May 31, 2026, currently shows a strong lean towards 'No' with current prices at 0.675, implying a 67.5% probability against normalization. The 'Yes' outcome trades at 0.325.

This market's significance cannot be overstated, as the Strait of Hormuz is a critical chokepoint for global energy and trade, normally handling a substantial portion of the world's seaborne oil and liquefied natural gas. The ability of vessels—including container, dry bulk, roll-on/roll-off, general cargo, and tanker ships—to transit this waterway directly impacts global supply chains and energy prices.

The pessimistic outlook reflected in the market odds is rooted in the severe and ongoing geopolitical crisis gripping the region. Since February 28, 2026, the Strait of Hormuz has been largely blocked by Iran following an air war initiated by the United States and Israel against Iran. In retaliation, Iran has issued warnings, boarded merchant ships, and reportedly laid sea mines. Concurrently, the U.S. has imposed a blockade on Iranian ports.

A critical development further complicating the situation is Iran's establishment of a new government agency, the 'Persian Gulf Strait Authority.' This authority aims to approve transit and collect tolls from vessels seeking passage, a move that has sparked international concern over freedom of navigation and is widely interpreted as Iran formalizing its wartime control over the vital waterway.

The impact on shipping traffic has been drastic. Prior to the conflict, the Strait saw approximately 100-130 ships daily, or 70-80 commercial vessel crossings daily. However, by early March 2026, traffic had plummeted to single digits. Recent reports from Lloyd's List Intelligence indicate that as of May 7, 2026, "no transits recorded since May 4," with the strait effectively declared "closed". Data from S&P Global Commodities at Sea reported only nine ships crossing on May 3, a significant drop from 21 on May 1. IMF Portwatch data as of April 19, 2026, showed a 7-day moving average of merely 12.57 transit calls, far below the 'normal' threshold of 60.

Compounding the operational challenges, hundreds of commercial ships are currently trapped within the Persian Gulf, unable to exit. Estimates suggest over 400 vessels are anchored, and approximately 1,500 ships with 20,000 crew members are stranded. Adding to the complexity are reports of degraded maritime visibility due to AIS suppression, GPS jamming, and "dark vessel" operations, making safe passage increasingly difficult.

While the U.S. initiated 'Operation Project Freedom' to escort merchant ships, this effort was subsequently paused to facilitate ongoing peace negotiations. Despite a conditional ceasefire, Iran has consistently asserted its control over the Strait, and a definitive resolution remains elusive.

Expert opinions reinforce the market's skepticism. Supply chain management executives warn that even if conditions improve, a full return to pre-crisis capacity and routes would take weeks or months, not days, as carriers, insurers, and shippers require sustained confidence in stability. Given the current state of near-total disruption and the complexities of geopolitical negotiations, a rapid recovery to an average of 60 transit calls by May 31, 2026, appears highly improbable, aligning with the market's strong 'No' conviction.

Sources:

Market data fetched at 2026-05-07 18:17 UTC | Polymarket ID: 1809560

This article is generated by AI for informational purposes only. It does not constitute financial advice. Always do your own research before making any investment decisions. Data sourced from Polymarket and public web sources.

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