Ship traffic through Strait of Hormuz remains below pre-war levels Commercial shipping through the Strait of Hormuz remains well below pre-war levels, according to data from analytics firm Kpler, despite vessels gradually returning to the strategic waterway. Kpler recorded 71 confirmed transits over the weekend, including a peak of 35 crossings on Saturday. Before the US-Israeli war on Iran, between 100 and 130 vessels passed through the strait each day.