U.S. spot Bitcoin ETFs have an average cost basis of approximately $80,000, according to Glassnode data. Despite recent price declines, the majority of Bitcoin held by these ETFs remains in unrealized profit, indicating ongoing institutional interest in 2025. Total inflows into Bitcoin ETFs have reached $57.56 billion, accounting for 6.5% of Bitcoin's market capitalization. On December 8, daily net outflows were reported at $60.48 million as prices consolidated.