Prediction-market traders are signaling skepticism that tanker traffic through the Strait of Hormuz will quickly return to pre-conflict levels, even as speculation persists around potential diplomatic movement between the United States and Iran.
On the Kalshi exchange, contracts tied to whether tanker transits will return to normal register a probability below 25% for a reopening before April 15. The market-implied chance increases to greater than 67% for a reopening by June 1, and climbs to 76% for the July 1 contract.
Kalshi's definition of a return to normal is specific: the seven-day moving average of Hormuz transit calls must exceed 60, based on IMF PortWatch data. Market participants have placed approximately $100,000 in wagers on the series of contracts tied to these milestone dates.
The Strait of Hormuz has taken on elevated importance in recent weeks. Before the conflict began, the waterway handled roughly 20% of global crude oil transit. Following a series of U.S.-Israeli military strikes, Iran has effectively stopped trade between the Persian Gulf and the Arabian Sea. Those strikes included the killing of Iran's supreme leader on February 28, the first day of the airstrikes.
Because Kalshi's contracts are priced in real time, the probabilities embedded in those prices reflect how traders currently assess the likelihood of a return to normal transit patterns over different time horizons. The pattern of probabilities - low in mid-April, rising through June and into July - indicates market participants expect reopening to be more likely later in the second quarter than in the immediate weeks ahead.
Key takeaways
- Prediction-market odds are below 25% for reopening of Hormuz transit before April 15, rising to over 67% by June 1 and 76% by July 1.
- Kalshi uses the seven-day moving average of Hormuz transit calls exceeding 60 - per IMF PortWatch data - as the criterion for a return to normal.
- The Strait of Hormuz previously carried roughly 20% of global crude oil transit; recent military strikes have effectively halted trade between the Persian Gulf and the Arabian Sea.
Sectors likely affected
- Energy - given the strait's share of global crude transit.
- Shipping and tanker markets - because the contracts track tanker transit calls.
- Financial markets - as prediction-market pricing may inform sentiment about supply risks.
Risks and uncertainties
- Timing risk - market prices imply low odds of reopening in the near term, especially before mid-April, introducing uncertainty for energy and shipping markets.
- Operational risk - Iran has effectively stopped trade between the Persian Gulf and the Arabian Sea following the airstrikes, creating uncertainty about when normal transit levels can resume.
- Geopolitical risk - the strikes, which included the killing of Iran's supreme leader on February 28, the first day of the airstrikes, are a direct source of instability that affects the prospects for reopening.
Kalshi's market prices and the explicit definition tied to IMF PortWatch data provide a transparent signal of how traders are placing odds on a return to normal transit levels. While contract-implied probabilities increase across the coming months, current pricing indicates skepticism about a swift resumption of typical tanker traffic through the Strait of Hormuz.