Saylor says 25% of Mag8 holds Bitcoin after SpaceX's $75B IPO

SpaceX holds 18,712 Bitcoin worth $1.29 billion, making 25% of the expanded Mag8 a corporate Bitcoin holder, Michael Saylor said.

"Thanks to you, 25% of the Mag8 now holds Bitcoin on the balance sheet," Saylor, executive chairman of Strategy, said in a post on X. Saylor used "Mag8" to refer to the Magnificent Seven plus SpaceX, which debuted on the Nasdaq on June 12 under the ticker SPCX.

SpaceX's S-1 filing disclosed 18,712 BTC acquired at a total cost of $661 million, or roughly $35,300 per coin. Tesla, also led by Elon Musk, holds 11,509 BTC. Strategy remains the largest corporate holder with 843,738 BTC, acquired through its treasury model funded largely by STRC preferred shares.

The milestone comes as public companies added 43,557 Bitcoin net in May, worth $3.2 billion at month-end prices, according to BitcoinTreasuries.net. SpaceX's disclosure alone represented more than one-third of all public treasury additions before sales in May. Strategy led with 25,404 BTC acquired in the month, while Strive added 4,443 BTC over roughly one month through its SATA preferred share program.

SpaceX's IPO and Index Inclusion

The offering raised $75 billion from the sale of 555.6 million shares at a valuation of $1.7 trillion, making it the largest public market debut in history. The stock priced at $135, opened at $150, and closed near $161 on its first day.

FTSE Russell confirmed SpaceX will join the Russell 1000 and Russell Top 200 on June 26 under a fast-entry rule. MSCI will add the stock to its standard and large-cap indexes on June 29. The S&P 500 ruled out quick inclusion because SpaceX does not meet the requirement of four consecutive quarters of GAAP profitability, pushing any potential entry to mid-2027.

ETF Flows Return After a Bruising Stretch

The corporate adoption news coincided with a reversal in Bitcoin ETF flows. Spot Bitcoin ETFs drew $85.85 million in net inflows on June 12, the strongest single-day demand since May 14, breaking a five-session withdrawal streak that pulled roughly $727 million from the funds. Cumulative net inflows stand at $53.62 billion, with total net assets near $79.65 billion.

Bitcoin traded at $63,975 at press time, up 1% over the past 24 hours and 8.25% over the last week, recovering from a dip toward $59,000 after geopolitical tensions in the Middle East.

The implication for investors: with two of eight mega-cap tech companies now holding Bitcoin on their balance sheets and public corporate treasury holdings accelerating, the corporate Bitcoin playbook has moved from a Strategy-led experiment to a broader trend. The next trigger could come from regulatory clarity — the CLARITY Act, if passed, would remove the accounting and compliance barriers that have kept most companies on the sidelines.

This article is for informational purposes only and does not constitute investment advice.