Iran blocks the Strait of Hormuz: fragile ceasefire collapses
June 20, 2026 — a day that could go down in history as the point of no return for the global energy market. The Khatam al-Anbiya Central Command, the joint headquarters of Iran's armed forces, has officially announced the closure of the Strait of Hormuz to commercial shipping. The official reason is violations by the US and Israel of the terms of the recently signed Islamabad Memorandum.
This decision is a direct challenge to the fragile truce that markets had so warmly welcomed just a few days earlier. Investors had already priced in a de-escalation scenario, but now reality is once again shattering expectations. The Strait of Hormuz is not just a geographical point; it is the artery of the global economy.
A Ticking Energy Time Bomb
Approximately 21 million barrels of oil and petroleum products pass through this narrow corridor every day — roughly 20% of global liquid hydrocarbon consumption and a quarter of all seaborne oil trade. According to the US Energy Information Administration, halting shipping here is equivalent to a simultaneous supply shock that even strategic reserves cannot compensate for.
Beyond oil, key flows of liquefied natural gas from Qatar and the UAE also transit the strait. Alternative routes for Gulf countries are virtually non-existent, making the region a hostage to Iran's decision.
The Islamabad Memorandum: A Stillborn Compromise
To recall, the 14-point memorandum, agreed upon around June 17, 2026, stipulated that Iran would ensure safe and free passage for commercial vessels within the first 60 days. In return, the US was to lift the naval blockade of Iranian ports. This document instantly crashed oil prices, restoring an illusion of stability to the market.
However, Tehran now claims that Israel's actions in Lebanon and continued strikes by the US violate the spirit and letter of the agreement. In essence, Iran is using its control over the strait as a lever of pressure, demonstrating that diplomatic deals are worthless without real guarantees.
Notably, US Vice President JD Vance has already issued a denial, stating that the strait is not officially closed. But amid the information war and direct statements from Iran's military command, markets will gravitate toward the worst-case scenario.
Expert opinion from Cryptalist: The closure of the Strait of Hormuz is not just an escalation of the conflict, but a trigger for a structural shift in commodity markets. Bitcoin in such conditions may temporarily dip along with risk assets, but its deflationary nature and independence from geopolitics will make it a beneficiary of chaos in the medium term. Investors should brace for volatility, not panic.