Strategy holds 840,447 BTC worth $53.452 billion, with an average cost basis of $75,385 and an unrealized loss of $9.904 billion, or 15.6%, according to on-chain analyst EmberCN. The analyst also said Ethereum treasury company Bitmine bought 9,926 ETH last week at about $1,891 each, or roughly $18.77 million. That purchase brought Bitmine's total holdings to 5,815,164 ETH worth $11.06 billion, with an average cost basis of $3,366 and an unrealized loss of $8.513 billion, or 43.5%. Corporate crypto treasuries are closely watched because they show how listed companies are using Bitcoin and Ethereum as balance-sheet assets and how exposed they are to market swings.