How Many Ships Transit Hormuz Week of May 4?

The Strait of Hormuz sits at the center of one of the most watched shipping corridors on earth, and right now the prediction market is pricing something notable: a 44.5% chance that only 25 to 49 ships transit the strait during the week of May 4. That is a sharply below-normal range. The market is effectively saying there is nearly a coin-flip probability that traffic through one of the world’s most critical chokepoints falls into a historically compressed band.

This market resolves based on IMF Portwatch transit call data for the Strait of Hormuz covering May 4 through May 10, 2026. The current price sits at $0.45 for the 25-49 outcome, implying 44.5% probability. Total 24-hour trading volume is $1,146, which signals thin liquidity. The open interest stands at zero, meaning no capital is currently locked in outstanding positions.

How the Strait of Hormuz Transit Market Works

This contract pays out if IMF Portwatch records between 25 and 49 transit calls for the Strait of Hormuz across all seven days from May 4 through May 10, 2026. Transit calls include container ships, dry bulk carriers, roll-on/roll-off vessels, general cargo ships, and tankers. IMF Portwatch is the sole resolution source. The market closes May 10, 2026.

• 25-49 ships (primary outcome): $0.45 per share, implying 44.5% probability
• 50-74 ships: Alternative outcome, priced below the primary
• Under 25 ships: Extreme disruption scenario
• 75-99 ships: Above-normal traffic scenario
• 100+ ships: High-volume scenario, lowest implied probability

The contract fails to pay if traffic lands outside the 25-49 range. The 50-74 band represents the more historically typical weekly count for Hormuz under normal geopolitical conditions. For the 25-49 outcome to lose, either traffic normalizes into the 50-74 range or an extreme disruption pushes counts below 25. The math doesn’t lie: the market is pricing meaningful disruption risk as the base case, not the tail risk.

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Market Signals: Thin Volume, Elevated Trend Score

The momentum composite for this market combines a flat 1-hour price change of zero, no 24-hour change data, and a trend score of 13.50. That elevated trend score alongside static short-term price movement suggests the market reached a conviction point and held. The most identifiable catalyst is the active diplomatic and military situation involving Iran and the United States, which directly affects commercial shipping confidence in the Gulf region.

Total volume is $1,146 against liquidity of $116,259. Here’s what the market is missing: that liquidity figure dwarfs actual trading activity by a factor of more than 100. The $116,259 in order book depth means large moves are theoretically absorb-able, but the thin actual volume means current prices reflect very few real-money convictions. Treat the 44.5% figure as directionally informative, not statistically robust.

Key Factors

• US-Iran diplomatic talks in Oman during late April 2026 produced no confirmed framework agreement, keeping military escalation risk elevated through the May 4-10 window.
• The 1-hour price change of zero combined with a trend score of 13.50 points to a market that has absorbed recent news and stabilized near current levels.
• Related markets show a 57% probability that Trump announces an end to military operations against Iran, which would directly increase Hormuz traffic toward the 50-74 range.
• A 15% market probability that Kharg Island falls outside Iranian control signals that traders are pricing some meaningful risk to Persian Gulf oil infrastructure.
• The 37% probability on a permanent US-Iran peace deal confirms the market views resolution as possible but not imminent before the May 10 resolution date.

Lines Analysis: Iran, the US, and What Moves Hormuz Traffic

The 25-49 outcome is favored because current US-Iran tensions have demonstrably compressed commercial shipping activity through the strait. Iranian-linked naval activity in the Gulf, combined with US military posture in the region, has elevated insurance premiums and deterred some vessel operators from scheduling transits during the uncertainty window. The IMF Portwatch methodology counts transit calls specifically, meaning vessels that reroute or delay departures reduce the weekly count directly. A week of 25-49 calls would represent roughly half of normal pre-tension weekly traffic levels.

The 50-74 alternative gains ground if the US-Iran talks currently underway produce a visible de-escalation signal before May 4. A Trump announcement pausing or ending military operations against Iran, which related markets price at 57%, would likely push commercial operators to resume normal scheduling. That single diplomatic signal could shift weekly transit counts back into the 50-74 band and price this contract sharply lower.

Signals to Monitor

• Any formal US-Iran statement from the Oman diplomatic channel before May 4 would push traffic expectations toward 50-74 and reprice this contract below 44.5%.
• Iranian Revolutionary Guard Corps activity near the strait or any vessel seizure would compress traffic further and push the under-25 outcome higher.
• A Trump executive action pausing Iran military operations, currently at 57% probability in related markets, is the single largest upside catalyst for the 50-74 outcome.
• IMF Portwatch data revisions within the May 4-10 window are factored into resolution, so early-week data should be treated as provisional.
• Kharg Island control status, currently at 15% probability of changing hands, would represent a catastrophic traffic disruption if it materialized before May 10.

The $1,146 in actual trading volume makes this a low-conviction market. The data favors the 25-49 outcome based on current geopolitical posture, but the thin volume means a single informed trader could move this price materially before May 10.

LINES VERDICT

Below-Normal Traffic: Tension Holds the Chokepoint

Active US-Iran diplomatic uncertainty and elevated military posture in the Gulf make the 25-49 transit band the most defensible single outcome through May 10. The absence of a confirmed de-escalation framework keeps commercial operators cautious.

What the market says: The 44.5% probability on 25-49 ships reflects near-even odds on compressed Hormuz traffic. With the May 10, 2026 resolution date days away, any diplomatic signal from Oman talks could reprice this contract sharply in either direction.

Geopolitical Context: Iran, Hormuz, and the Diplomatic Calendar

The Strait of Hormuz connects the Persian Gulf to the Gulf of Oman. Roughly 20% of global oil supply transits this 33-kilometer-wide passage. Iran controls the northern shore and has historically used transit interference as a diplomatic and military lever. The current US-Iran tensions, escalating through early 2026, have pushed commercial vessel operators to recalculate routing and scheduling decisions on a week-by-week basis.

US-Iran talks in Oman represent the most active diplomatic channel as of early May 2026. Those talks have not produced a ceasefire or framework agreement. The absence of a deal means the risk premium on Hormuz transits remains elevated entering the May 4-10 measurement window. Related market pricing confirms this: the US-Iran peace deal market sits at 37%, below majority probability, signaling traders do not expect a binding resolution before mid-May.

Before May 10, watch for: any joint statement from the Oman talks, US military force posture announcements in the Gulf, Iranian naval exercise announcements near the strait, and IMF Portwatch preliminary data for May 4 and 5, which will serve as early resolution signals.

Frequently Asked Questions

• What does 44.5% probability mean here? It means the market assigns a 44.5% chance that IMF Portwatch records between 25 and 49 transit calls for the Strait of Hormuz across May 4-10, 2026. Roughly a coin flip.
• What happens to the NO-equivalent positions? If traffic lands in any other band (under 25, 50-74, 75-99, or 100+), the 25-49 contract pays zero. Traders holding other outcome contracts collect based on which band actually resolves.
• What moves this contract’s price? US-Iran diplomatic developments, Iranian military activity near the strait, US military posture announcements, and early IMF Portwatch data for May 4-5 are the primary price movers.
• When and how does this market resolve? The market resolves after IMF Portwatch publishes transit call data for May 10, 2026. If that data is delayed beyond 14 days, resolution uses the most recent published data.
• Is the volume reliable for making inferences? The $1,146 in total volume is very thin. The $116,259 in order book liquidity provides depth, but actual trader conviction reflected in this price is limited. Treat directional signals cautiously.

This analysis reflects market conditions as of 2026-05-01 06:48:53. Prediction market probabilities are volatile and shift as new diplomatic, military, and institutional developments emerge, especially as the 2026-05-10 00:00:00 resolution date approaches. Lines.com does not accept bets or provide financial or gambling advice. All market outcomes are uncertain.