U.S. spot Bitcoin ETF institutions trim holdings by 3.5% in Q4 2025 despite 23% BTC drop

According to aggregated 13F regulatory filings, institutional investors reduced their U.S. spot Bitcoin ETF exposure from 532K BTC in Q3 2025 to 513K BTC in Q4 2025, a decline of about 3.5%. This modest cutback came as BTC fell 23% and slipped below the reported $84.1K average ETF entry price, leaving the average ETF holder roughly 20% in loss at a BTC price of $68K.