# Strait of Hormuz traffic stayed constrained as US blockade persisted

*World. 91% certain. Thursday, 1 October 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**Iran kept control of Kharg Island and the Bab el-Mandeb stayed open.**

On Thursday, the main maritime corridors in the Middle East continued to operate under restrictions. Traffic through the Strait of Hormuz did not return to pre-conflict levels, and the United States had not announced an end to its blockade of Iranian shipping. Iran maintained authority over Kharg Island, and the Bab el-Mandeb Strait remained open to vessels. The Iranian regime remained in power as of the end of September.

Shipping companies reported delays and rerouting as vessels avoided the congested Hormuz channel. The United States continued to enforce restrictions on Iranian-flagged ships, citing security concerns.

The Bab el-Mandeb, a chokepoint linking the Red Sea to the Gulf of Aden, stayed operational for commercial traffic. Inspections and occasional security incidents persisted, but the Strait was not closed. Regional authorities reported that passage rates were comparable to the previous month.

Iranian forces continued to occupy Kharg Island, the nation's principal oil-export hub. The Island's facilities remained active, handling outbound shipments despite broader shipping constraints. No foreign power intervened to alter the Island's status during September.

The Iranian government retained its leadership structure through the end of September, with no change reported. The continued constraints kept regional oil flow limited. The combination of these factors left global shipping routes in a state of partial disruption.

## Analysis

The absence of a policy shift indicates that diplomatic avenues have not resolved the underlying tensions. Uncertainty remains over when traffic might rebound.

Keeping the Bab el-Mandeb open preserves a critical link between the Red Sea and the Indian Ocean, allowing some cargo to bypass the congested Hormuz corridor. The Strait's continued security checks add marginal delays. A future closure would compound regional supply-chain strain.

Iran's retention of Kharg Island secures its primary oil export facility, ensuring the country can still dispatch petroleum despite external pressures. This control also reinforces the regime's economic leverage. Any challenge to the Island's status could trigger heightened regional instability.

The persistence of the regime and unchanged maritime constraints indicate a continued status quo in the Middle East's shipping environment. Stakeholders must navigate higher shipping costs and potential rerouting while monitoring diplomatic developments.

## What this was built from

- **Strait of Hormuz traffic returns to normal by September 30?**: No, 98%; settles Wednesday, 30 September 2026 (polymarket). [Market](https://polymarket.com/event/strait-of-hormuz-traffic-returns-to-normal-by-september-30-20260702154339440)
- **Strait of Hormuz traffic returns to normal by end of September? [Metaculus]**: No, 99%; settles Wednesday, 30 September 2026 (manifold). [Market](https://manifold.markets/BillClintonBubba/strait-of-hormuz-traffic-returns-to-yU9NASst0n)
- **Strait of Hormuz traffic returns to normal by end of September? [Polymarket]**: No, 99%; settles Wednesday, 30 September 2026 (manifold). [Market](https://manifold.markets/HillaryClinton/strait-of-hormuz-traffic-returns-to-CN0zOzRqE8)
- **Bab el-Mandeb Strait effectively closed by September 30?**: No, 97%; settles Thursday, 1 October 2026 (polymarket). [Market](https://polymarket.com/event/bab-el-mandeb-strait-effectively-closed-by)
- **Kharg Island no longer under Iranian control by September 30?**: No, 98%; settles Thursday, 1 October 2026 (polymarket). [Market](https://polymarket.com/event/kharg-island-no-longer-under-iranian-control-by-march-31)
- **US announces end of Iranian blockade by September 30, 2026?**: No, 91%; settles Thursday, 1 October 2026 (polymarket). [Market](https://polymarket.com/event/us-announces-end-of-iranian-blockade-byptptpt-20260713152715080)
- **Will the Iranian regime fall by September 30?**: No, 99%; settles Thursday, 1 October 2026 (polymarket). [Market](https://polymarket.com/event/will-the-iranian-regime-fall-by-september-30-20260629143335077)