Iran commits not to attack ships in Hormuz by Sunday?

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Market context

Iran has repeatedly attacked commercial vessels in the Strait of Hormuz since late February, undermining ceasefire talks and prompting the US to demand a public pledge that the waterway will remain open and ships will not be targeted[3][4]. Recent strikes include missile-stung tankers and a container ship damaged by an IRGC gunboat without warning, actions Tehran justified as responses to vessels ignoring transit directives or using “unacceptable” routes[1][3]. Oman reported that Iran affirmed commitment to international law and toll-free safe passage following talks with its foreign minister, yet that assurance has not translated into a formal, unambiguous commitment not to attack all ships[1].

Historically, Iran’s maritime threats have functioned as leverage rather than fixed policy, with declarative commitments rarely materialising unless tied to concrete diplomatic breakthroughs; the current 2% crowd-implied probability reflects this pattern of conditional, non-binding statements rather than binding guarantees[4][5]. Comparable cases show that even when Iran announces “safe passage” for non-hostile ships, it explicitly excludes US- and Israel-linked vessels, leaving the market’s qualifying condition—no attacks on *any* ships—unmet[2]. The absence of a declarative, universal policy statement since the June strike further supports the low probability of a qualifying announcement by the settlement deadline[1].

Traders should monitor negotiations in Oman led by US Vice President JD Vance, where the US is insisting Iran publicly guarantee the strait is open and cease shooting on commercial vessels[4][9]. A qualifying announcement must be a clear, unambiguous commitment not to attack ships transiting the Strait, not a conditional or selective safe-passage notice[1][2]. Watch for statements from Iran’s parliamentary speaker, the IRGC, or the newly created Persian Gulf Seaways Management Organization, as these bodies have issued transit warnings and route mandates in recent weeks[1]. Any breakthrough would likely emerge from high-level talks rather than unilateral military decrees, given internal Iranian power struggles that complicate deal-making[4][6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

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