Bitcoin fell 0.7% to $74,756.6, slipping below $75,000 as US‑Iran tensions heightened on 20 Apr 2026.
Geopolitical flare‑up, including US seizure of an Iranian‑flagged vessel and Hormuz closure, pushed oil prices up and risk‑off sentiment.
Altcoins also slipped, with Ethereum down 1.3% to $2,285.63 and XRP down 0.4% to $1.41.
Analysts warn volatility will stay elevated, citing oil moves and further geopolitical developments.