Iran Re-Closes Hormuz, Bitcoin Shrugs, $63K Holds the Door Shut

Iran's Khatam al-Anbiya Central Headquarters announced on June 20, 2026, that the Strait of Hormuz is closed to vessel traffic, citing alleged violations of the 14-point Islamabad Memorandum of Understanding reached around June 17, 2026, by the United States and Israel. Iran's joint top military command described the closure as the "first step" and warned of additional measures if aggression continues, according to Iranian state media carried by Tasnim. The announcement comes less than a day after Israel and Hezbollah reached a ceasefire agreement, which had earlier boosted the U.S.–Iran peace deal signed this week.

The military command said the U.S. failed to implement the first clause of the agreement and that Israel had continuously violated the ceasefire with Lebanon, prompting the closure of the passage of vessels. The move follows reports that Israel carried out strikes in South Lebanon on Hezbollah targets despite the renewed ceasefire. Tensions between Israel and Hezbollah had previously contributed to delays in Switzerland talks between the U.S. and Iran, originally scheduled for the day before the announcement.

The Strait of Hormuz carries approximately 21 million barrels per day of oil and petroleum liquids, equal to roughly 20% of global petroleum liquids consumption and about one-quarter of seaborne oil trade, according to U.S. Energy Information Administration data. The waterway also handles major liquefied natural gas exports from Qatar and the UAE. The Islamabad MOU had included commitments for Iran to make best efforts toward safe, toll-free commercial passage for an initial 60-day period and called for an end to the U.S. naval blockade of Iranian ports, with traffic having begun to resume after the framework.

Bitcoin ($BTC) remained largely unchanged despite the closure, trading at around $63,400, down less than 1% in the last 24 hours, according to TradingView data. U.S. Vice President JD Vance, appearing on Fox News, suggested otherwise on the closure, framing the situation around long-term strategy on Iran's nuclear ambitions and the dismantling of its enriched uranium stockpile through negotiations and verification. The latest closure remains unconfirmed by the U.S. side.