Bitcoin only has 21 million total coins that will ever be available. But not all Bitcoins are available yet, and the remaining coins still need to be “mined” to bring them into circulation.

MicroStrategy Inc. said Monday it purchased about 20,356 bitcoins between Feb. 18 and Feb. 23 using the roughly $1.9 billion raised through a zero-coupon convertible bond offering last week.

David Sacks, appointed by President Donald Trump as the administration's "crypto czar," said the federal government may have lost more than $16 billion by selling off its bitcoins too early.