Strategy disclosed Monday that Strategy bought more than $22 million worth of Bitcoin last week, adding 267 Bitcoin. Strategy's Bitcoin holdings are currently worth around $64 billion. Strategy also spent roughly $193 million buying back STRC preferred shares. Strategy's board approved an additional $1 billion for preferred-share buybacks, bringing the total authorization to $3 billion. The purchase continues Strategy's accumulation despite market volatility, although Strategy sold Bitcoin on four separate occasions earlier this year.