Bitcoin Falls 3.7% to Test $81,500 ETF Cost Basis

Bitcoin fell 3.7% to test the estimated $81,500 average cost basis of U.S. spot Bitcoin ETFs. This level may act as a key support or resistance point, as ETF investors’ aggregate break-even price can influence buying and selling pressure. A sustained drop below it could deepen weakness and leave recent ETF buyers at a loss; a rebound could indicate the level is holding.