21 July 2026.

Situation

The Strait of Hormuz remains the world's most operationally constrained chokepoint, with the Crisis Pressure index sitting in the extreme band and flat over the past 24 hours, physical transit deviation its top driver. PortWatch's most recent published day, 2026-07-19, recorded only 15 transits against a pre-crisis baseline of 88 per day; that figure carries a multi-day lag by design, given PortWatch's weekly Tuesday publication cycle. Separately, port arrivals across the Hormuz-area ports on both the Persian Gulf and Gulf of Oman sides reached 269 vessels in the most recent 24 hours, a distinct methodology that should not be read against the PortWatch transit count. At 23:52 UTC, Brent stood at $91.66, up +2.91% over 24 hours, with 537 vessels anchored or stopped at that snapshot, both figures subject to live revision. The Escalation Forecast index, a horizon-mix composite, sits in the elevated band but has eased over the past day, with Polymarket escalation contracts its top contributor, a divergence from the extreme state reading that traders should weigh carefully. The lead development this cycle is an unverified single-source report from Crypto Briefing, citing officials, that Iran has escalated direct attacks on US Navy vessels in the strait; US Central Command has not publicly confirmed this as of publication. BBC confirms US forces have launched fresh strikes on Iran. Two tankers carrying Saudi crude turned back from the Red Sea after a Houthi warning, per gCaptain, adding further route-diversion pressure across connected waterways.

Recorded