Iran blocks the Strait of Hormuz: ceasefire collapses, oil under threat
June 20, 2026. Iran's highest military command — the Khatam al-Anbiya Joint Headquarters — has officially announced the closure of the Strait of Hormuz to shipping. According to Tehran, the reason is systematic violations of the recently signed Islamabad Memorandum by the United States and Israel.
This decision is a direct blow to market hopes for de-escalation. Just a few days ago, after the signing of the 14-point agreement on June 17, oil prices were falling, and traders were pricing in a scenario of détente. Now the situation is changing dramatically.
What Actually Happened
The Iranian command called the blockade of the strait a "first step" and threatened further measures if "aggression continues." The conflict escalated after strikes by the United States and Israel in late February 2026, which prompted the earlier imposition of restrictions on vessel passage. Now Tehran claims that Israel's actions in Lebanon and Washington's failure to comply with the terms of the memorandum make further adherence to the agreement impossible.
Recall: the Islamabad Memorandum stipulated that Iran would ensure the freest and safest possible passage of commercial vessels through the strait within 60 days. In return, the United States was to lift the naval blockade of Iranian ports. Shipping began to recover, which immediately reflected in lower energy prices. Now this fragile balance has been shattered.
Stakes for the Global Market
The Strait of Hormuz is the artery of global energy. Approximately 21 million barrels of oil and petroleum products pass through it daily, accounting for about 20% of global liquid hydrocarbon consumption and a quarter of all seaborne oil trade. According to the U.S. Energy Information Administration, alternative routes for Gulf countries are virtually non-existent. Besides oil, major export shipments of liquefied natural gas from Qatar and the UAE also pass through the strait.
Any blockade is not just a rise in volatility, but a potential supply shock that could trigger a price surge to levels not seen since 2022. The market has already reacted: oil futures began to rise on the news, and traders are actively reassessing their risk models.
My Analysis
There is no official confirmation of a physical blockade of the strait yet — U.S. Vice President JD Vance has already stated otherwise. However, the very fact of such a statement from Iran's highest military command is a powerful signal. If real actions follow, the world will face not just a price spike, but a full-blown energy crisis affecting all asset classes, including cryptocurrencies. In such moments, investors flee to safe-haven assets, and Bitcoin, as digital gold, may receive a short-term boost, but long-term uncertainty will weigh on all risk instruments.