The current price of BTC is $66,940 MSTR's holding cost is $76,027 The average holding cost of Bitcoin spot ETFs is $83,976 BlackRock IBIT investors' average holding cost is $83,633 Grayscale GBTC + BTC investors' average holding cost is $81,338 Fidelity FBTC investors' average holding cost is $73,761 Bitcoin miners started shutting down gradually from $85,000