SpaceX disclosed it holds 18,712 bitcoin worth roughly $1.29 billion as of March 31, 2026, according to the S-1 registration statement Elon Musk’s rocket company filed with the U.S. Securities and Exchange Commission. The position, acquired at an average price of about $35,300 per coin for a total cost basis near $661 million, makes SpaceX one of the largest corporate bitcoin holders in the world and the first time the privately held company has formally confirmed the size of its crypto treasury. The disclosure landed days before SpaceX’s planned IPO, expected as early as June 12 at a valuation between $1.75 trillion and $2 trillion.
A treasury reserve is a company’s pool of long-term assets held on its balance sheet to preserve value and provide financial flexibility, similar to how some firms hold cash, U.S. Treasuries, or gold.
Key takeaways
- SpaceX holds 18,712 BTC valued at $1.29 billion as of March 31, 2026, with an unrealized gain of roughly $630 million on a $661 million cost basis.
- SpaceX’s bitcoin stack is larger than Tesla’s reported 11,509 BTC and Coinbase’s 16,492 BTC, ranking it among the top corporate holders globally.
- The S-1 confirms bitcoin as a strategic treasury asset, not a one-off trade, and ties future SpaceX equity holders to BTC price movements.
- Analysts say a Nasdaq listing could create a passive bitcoin exposure channel through index funds, while warning the IPO itself may siphon short-term liquidity from crypto markets.
Published: May 24, 2026 13:00 UTC
Why the SpaceX bitcoin disclosure matters
Musk had previously stated in public interviews that both Tesla and SpaceX owned bitcoin, but the actual size of the SpaceX position was never confirmed in any regulatory filing. The S-1 fills that gap. According to the filing reported by CoinDesk, SpaceX began accumulating BTC in early 2021, the same window Tesla disclosed its own $1.5 billion purchase. Tesla later sold roughly 75% of that position; SpaceX, according to the filing, has not.
The 18,712 BTC figure puts SpaceX ahead of Coinbase and behind only a handful of public holders such as MicroStrategy and a few mining firms. At a BTC spot price near $77,000 on the filing date, the market value of the stack would have been closer to $1.45 billion, generating an unrealized profit near $800 million on the original cost basis, per Coingape.
What it means for the IPO and the market
SpaceX’s IPO is targeting a valuation that would place it among the ten most valuable listed companies in the world. Once the stock trades publicly, every passive index fund tracking the Nasdaq 100 or S&P 500 that adds SpaceX will pick up indirect bitcoin exposure through the company’s balance sheet. Analysts cited by Investing.com describe this as a structural channel for institutional BTC ownership that does not require any fund manager to make a discretionary crypto allocation.
Short-term effects cut the other way. Bitcoin tested resistance near $78,000 in the days after the filing, but several analysts have flagged the risk that the SpaceX offering, together with rumored IPOs from OpenAI and Anthropic, drains capital from risk assets including BTC. Bitcoin traded below $77,000 on May 23 as spot bitcoin ETFs logged $2.26 billion in net outflows over the prior two weeks, according to Crypto Briefing.
For SpaceX shareholders, the bitcoin position introduces a new revenue line and a new source of volatility. The company is also a Starlink operator and aerospace contractor, but the BTC stack now represents close to 0.1% of the targeted enterprise value, large enough to swing quarterly earnings through fair-value accounting rules.
How SpaceX compares to other corporate holders
SpaceX now sits in a tight cluster of corporate bitcoin holders that includes Tesla, Coinbase, Block, and Galaxy Digital. MicroStrategy, rebranded as Strategy, remains the largest with several hundred thousand BTC. What distinguishes SpaceX is that the holding accumulated almost entirely in private, before any public market scrutiny. The company never issued a press release announcing purchases, never tied bitcoin to a corporate strategy, and never used it for operating expenses, based on the S-1 disclosure summarized by KuCoin.
The filing also opens questions about whether other late-stage private companies hold similar undisclosed positions. xAI, Neuralink, and The Boring Company, all Musk-linked entities, have not made public BTC disclosures. Venture-backed firms with strong cash positions could be sitting on bitcoin reserves that only surface during S-1 reviews or acquisition due diligence.
Regulatory and accounting context
The disclosure arrives under updated FASB rules that took effect in fiscal years beginning after December 15, 2024, requiring companies to mark crypto holdings to fair value each reporting period rather than carrying them at impaired cost. That accounting change is one reason SpaceX could disclose the position cleanly in the S-1 without years of accumulated impairment losses distorting the numbers. The SEC reviewed the filing under its standard S-1 framework and did not single out the bitcoin holdings for special treatment, according to filings tracking by Decrypt.
FAQ
How much bitcoin does SpaceX own?
SpaceX holds 18,712 BTC, worth approximately $1.29 billion as of March 31, 2026, according to its S-1 IPO filing with the SEC. The position was acquired at an average price of about $35,300 per coin, for a total cost of around $661 million.
When is the SpaceX IPO?
The SpaceX IPO is expected to price as early as June 12, 2026, with a targeted valuation between $1.75 trillion and $2 trillion. If priced at the upper end, it would be the largest IPO in capital markets history and one of the ten most valuable listed companies in the world.
Does SpaceX hold more bitcoin than Tesla?
Yes. Tesla currently reports 11,509 BTC on its balance sheet after selling roughly 75% of its original 2021 purchase. SpaceX’s 18,712 BTC position is more than 60% larger than Tesla’s and exceeds Coinbase’s reported 16,492 BTC.
