Turns out Elon Musk @elonmusk secretly hoarded 18,712 BTC. SpaceX disclosed in its S-1 IPO filing submitted to the SEC: As of the end of March, they held 18,712 BTC, with a total cost of $661 million and an average price of around $35,000. Current market price $77K → Unrealized profit of about $630 million. Adding Tesla's previously disclosed 11,509 BTC to SpaceX's 18,712 BTC, Musk's companies collectively hold over 30,000 BTC. He really did love it!