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Bitcoin Tumbles as Trump's Iran Ultimatum Shakes Markets

Trump's 48-hour Iran ultimatum over the Strait of Hormuz rattled crypto markets. Bitcoin slid below $69,000, with $299M liquidated in 24 hours.

Updated 19 Aug 2026 5 min read How we work

Geopolitics is once again the main driver of the crypto market. Over the weekend of March 22-23, 2026, a single Truth Social post wiped out an entire week of gains in a matter of hours. The trigger: Donald Trump's 48-hour ultimatum to Iran over the reopening of the Strait of Hormuz.

What happened

Late Saturday night, President Trump posted an unambiguous message on Truth Social: if Iran did not fully reopen the Strait of Hormuz within 48 hours, the United States would strike and destroy Iran's power plants, starting with the largest one. A direct threat, with no room for diplomacy, that immediately rattled global financial markets.

Tehran's response was swift. Iranian military commanders stated that if their infrastructure came under attack, the country would completely shut down the Strait of Hormuz and strike energy plants, computer systems and desalination infrastructure across the Middle East. An escalation that shifted the conflict from a local war scenario to a systemic risk for the global economy.

The backdrop is a conflict that has already been running for weeks: the American military operation known as "Operation Epic Fury," launched in February 2026, had already carried out strikes on the Natanz nuclear facility and the Kharg Island oil hub. But Friday's scenario, when Trump had hinted at being close to a "scaling back" of operations, had sparked optimism and pushed Bitcoin as high as $75,912. The reversal 24 hours later caught the market completely off guard.

The impact on crypto markets

The numbers speak for themselves. Bitcoin fell to $68,820, down 2.58% in a matter of hours and completely erasing the previous week's gains. Ethereum took an even harder hit, dropping 3.36% to $2,082. XRP followed the same path. The sector's total market cap fell to $2.36 trillion, wiping out roughly $55 billion in value in a single session.

The most telling figure comes from liquidation data: according to CoinGlass, in the 24 hours following the ultimatum $299 million in positions were liquidated, with 85%, roughly $254 million, hitting long positions. A number that perfectly captures how bullishly the market was positioned before the escalation, and how badly it was caught off guard by the reversal.

CoinMarketCap's Fear & Greed Index hit 27, deep in fear territory. The crypto market's average RSI slid to 39.59, approaching oversold levels not seen since the first weeks of the conflict with Iran.

Why the Strait of Hormuz is so critical

The Strait of Hormuz is the world's most strategic maritime corridor for energy. Through this stretch of water, just 33 kilometers wide at its narrowest point, roughly 20% of the world's oil and gas passes. Its partial closure has already been under way for weeks, with visible effects on crude prices. Brent crude has swung between $105 and $110 a barrel, and WTI has approached the $100 threshold.

Strait of Hormuz - Wikipedia

Market experts, including those from the CNBC CFO Council, estimate that if the situation is not resolved within roughly two weeks, energy prices could see a sharp repricing higher, with knock-on effects on global inflation, consumer confidence and crypto mining profitability.

This last point is often underestimated: rising energy costs squeeze miners' margins, potentially forcing them to sell off BTC reserves to cover operating costs, adding sell pressure to a market already under stress.

Crypto as a risk asset, not a safe haven

One of the most interesting aspects of this crisis is how the crypto market reacted. The narrative of Bitcoin as "digital gold" and a safe haven has once again shown its limits amid an acute geopolitical shock. In the short term, when fear rises, institutional investors cut their exposure across all asset classes considered risky, including stocks, commodities and digital assets, and rotate into cash and government bonds.

It's worth noting that in the early phase of the conflict, in February 2026, BTC showed a brief "flight to safety premium," outperforming the S&P 500 when markets feared a collapse of the traditional banking system. But that effect faded quickly, and today the market prices crypto essentially as a macro-sensitive risk asset.

The Fed's stance further complicates the picture: even though last Wednesday's meeting sent dovish signals, which under normal conditions would support risk assets, the combination of geopolitical tensions and rising expectations for energy-driven inflation is putting tighter monetary policy scenarios back on the table.

What to watch in the coming hours

The next 24-48 hours are probably the most important for markets in weeks. There are two possible, opposite scenarios:

Scenario 1, De-escalation: If Trump extends or softens his ultimatum, or a partial reopening of the Strait takes shape, a relief rally in risk assets is expected. Bitcoin could quickly recover toward $72,000-$75,000.

Scenario 2, Escalation: If Iran takes any military action before the deadline, or if the United States actually strikes Iran's power plants, analysts estimate pressure on Bitcoin toward $65,000, with crypto market cap heading toward $2.29 trillion, the 78.6% Fibonacci retracement level identified as critical support.

The week's macro calendar also carries significant weight: the S&P Global Services PMI on Tuesday, US oil inventories on Wednesday, jobless claims on Thursday and Michigan Consumer Sentiment on Friday.

The bigger picture

This crisis arrives at a moment when the crypto market was building momentum on solid structural foundations: passage of the GENIUS Act on stablecoins, new SEC regulatory definitions, progress on Bitcoin and Ethereum ETFs, and an accelerating institutional adoption narrative. Geopolitical volatility doesn't erase these fundamentals, but it temporarily pushes them into the background.

In the medium term, analysts remain positive: the Fed has a dovish bias, US regulation is more favorable than ever, and institutional adoption keeps growing. But in the short term, the crypto market will have to navigate one of the most geopolitically delicate moments in recent years.

As always in situations like this, risk management matters more than price predictions.

⚠️ This article is for informational purposes only and does not constitute financial advice. The cryptocurrency market is highly volatile. Always do your own research before making investment decisions.

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