Centralized exchanges hold 804,000 fewer bitcoins (BTC) compared to three years ago, with significant withdrawals occurring just before the FTX bankruptcy in 2022. In the last three months, 184,000 BTC left these exchanges, underlining the trend toward self-custody for greater asset control and security. Notable withdrawals are seen from major platforms like Binance, Coinbase, Bitfinex, Okx, Gemini, and Bybit.