Ongoing US-Iran naval tensions and IRGC threats to commercial vessels, including recent attacks and warnings as of late July 2026, represent the primary driver behind closely matched trader sentiment across Polymarket ranges for Strait of Hormuz transits the week of August 3. Heightened risk premiums in energy markets, elevated tanker insurance costs, and intermittent US Central Command blockades or redirections have kept weekly volumes well below pre-conflict averages of roughly 900 vessels, with recent data showing daily transits fluctuating in the low double digits amid fragile ceasefires. The near-even implied probabilities—49.0% for 50-74 ships, 47.5% for 100+, and similar for adjacent bands—reflect uncertainty over whether incremental de-escalation or renewed incidents will dominate, with key swing factors including any new MoU compliance, mine clearance progress, and shifts in sanctioned versus mainstream carrier activity. Traders price in these probabilities as aggregated capital-backed views rather than certainties, underscoring the waterway’s role in global oil flows.