SpaceX just showed its hand. The company’s S-1 registration statement, filed with the SEC on May 20, revealed that Elon Musk’s rocket venture holds 18,712 Bitcoin purchased at a total cost of $661 million.

That stash was valued at $1.29 billion as of March 31, translating to an unrealized gain exceeding $780 million.

The numbers behind SpaceX’s Bitcoin bet

The average acquisition price works out to approximately $35,300 per BTC. By the time the filing hit SEC desks, prevailing market prices pushed the total value closer to $1.45 billion.

Prior on-chain estimates had pegged SpaceX’s holdings at roughly 8,285 BTC held in custody on Coinbase Prime. The actual number, 18,712, is more than double what blockchain sleuths had tracked.