SPCXvsXXI
SpaceX vs Twenty One Capital
Side-by-side Bitcoin treasury comparison: holdings, market cap, mNAV ratio, BTC per share, cost basis, and recent purchases. Numbers refresh every 5 minutes from SEC filings and live market data.
Metric
SPCX
XXI
BTC holdings
18,712 BTC
43,514 BTC
Market value of BTC
$1.2B
$2.8B
Average cost per BTC
$35,325.00
$84,865.00
Total cost basis
$661.0M
$3.7B
mNAV (market cap ÷ BTC value)
—
0.71×
Sats per share
—
12.5k
Last disclosed purchase
—
No tracked purchases yet
- 5/13/2026+-1 BTC-$93.7K
- 5/13/2026+0 BTC$0.00
- 3/31/2026+0 BTC$375.4M
- 3/31/2026+0 BTC$458.7M
- 3/31/2026+0 BTC$147.5M
SPCX vs XXI: frequently asked
Which company holds more Bitcoin, SPCX or XXI?▾
Twenty One Capital (XXI) holds 43,514 BTC, compared to SpaceX's (SPCX) 18,712 BTC — roughly 2.3× more.
What's the total Bitcoin value on the balance sheets of SPCX and XXI?▾
SPCX holds $1.2B worth of Bitcoin at current market prices. XXI holds $2.8B.
Who has a lower cost basis per BTC, SPCX or XXI?▾
SPCX's average cost is $35,325.00 per BTC. XXI's is $84,865.00. SPCX is the lower cost basis.
When did SPCX last buy Bitcoin?▾
SPCX's last BTC purchase isn't in our tracked history yet.
When did XXI last buy Bitcoin?▾
XXI disclosed a -1 BTC purchase on May 13, 2026.