Saylor: 25% of 'Mag8' now holds BTC after SpaceX IPO!

Michael Saylor, Strategy chairman and the architect of corporate bitcoin adoption, congratulated Elon Musk on SpaceX's historic Nasdaq debut by coining a new Wall Street benchmark: the "Mag8." With SpaceX now public at a $1.75 trillion valuation — the largest IPO in history — Saylor noted that two of the eight firms in his expanded elite-stock grouping already hold bitcoin on their balance sheets.

"Thanks to you, 25% of the Mag8 now holds bitcoin on the balance sheet," Saylor wrote on X. The Mag8 is his expanded take on the Magnificent Seven — Apple, Microsoft, Nvidia, Alphabet, Amazon, Meta, and Tesla — with SpaceX added as the eighth member. Tesla and SpaceX, both Musk-led, are the two bitcoin holders in the group.

Why it matters

SpaceX enters public markets as already the world's eighth-largest corporate bitcoin holder, carrying 18,712 BTC on its balance sheet. Tesla holds 11,509 BTC. Strategy itself leads the field by a wide margin with 845,256 BTC worth over $54 billion. The Mag8 framing is more than a branding exercise — it signals that bitcoin treasury adoption is now a feature of the most elite tier of US public equities, not a fringe corporate experiment.

Market impact

With two of the eight largest-cap US tech names now holding BTC, the narrative around corporate bitcoin adoption takes a structural step forward. Institutional allocators benchmarking against the Mag8 will increasingly encounter bitcoin as a balance-sheet line item among their core holdings, raising the floor for how seriously treasury BTC is taken in equity analysis.