Brent crude surges above $80 after US strikes on Iran, dragging crypto markets lower

Brent crude jumped as much as 7% on July 8, briefly piercing the $80-per-barrel level after US military strikes on Iranian targets reignited fears of a full-blown supply crisis. The move reversed weeks of declining prices and sent shockwaves through risk assets, including crypto, where the total market capitalization shed 1.24% in a single session.

What actually happened

The price surge came after a rapid escalation of US-Iran hostilities. President Trump declared the ceasefire effectively over, and the US revoked a sanctions waiver that had previously allowed Iranian oil to reach global markets. The combination of active military strikes, sanctions reimposition, and threats of a naval blockade created the kind of triple-threat scenario that makes commodity traders lose sleep.

Iranian vessel attacks in the Strait of Hormuz, the narrow waterway through which roughly a fifth of the world’s oil passes, added fuel to the fire. Brent had been trading at relatively subdued levels of around $70-$72 in recent weeks, reflecting fragile but persistent ceasefire hopes. Those hopes evaporated in a matter of hours.

After touching $80, Brent settled into a $77-$79 range by the end of the session.

Crypto catches a cold

Bitcoin dropped approximately 0.6%, sliding to $63,551. Ethereum fell about 0.8% to $1,776. Neither move was catastrophic on its own, but the broader market took a harder hit, with total crypto market capitalization declining 1.24%.

Hyperliquid’s HYPE token led major decliners, falling 3.38%. That’s an ironic twist: the perpetual futures platform had previously seen record oil-linked trading volumes during earlier stages of the US-Iran conflict.

Rising oil prices feed into inflation expectations. Higher inflation makes it harder for central banks to cut interest rates. And rate cut expectations have been one of the primary tailwinds for risk assets, crypto included, throughout 2026.

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