Bitcoin (BTC) Slides Below $75K as US-Iran Tensions Re-Escalate: Why Is BTC Down Today Despite Record ETF Inflows?

Bitcoin (BTC) faced significant downward pressure on April 20, 2026, slipping 1.46% to $74,435 and dragging the total crypto market cap down by over $80 billion. Despite a blockbuster week for Spot Bitcoin ETFs, which saw nearly $1 billion in net inflows, the digital gold narrative is being tested as geopolitical instability in the Middle East triggers a classic risk-off selloff.