SSMvsXXI
Sono Group N.V. 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.
SSM
Sono Group N.V.
🇳🇱 NL
68 BTC
$4.1M market value
XXI
Twenty One Capital
🇺🇸 US
43,514 BTC
$2.6B market value
Metric
SSM
XXI
BTC holdings
68 BTC
43,514 BTC
Market value of BTC
$4.1M
$2.6B
Average cost per BTC
$73,000.02
$84,865.00
Total cost basis
$5.0M
$3.7B
mNAV (market cap ÷ BTC value)
1.58×
0.71×
Sats per share
4.7k
12.5k
Last disclosed purchase
—
No tracked purchases yet
- May 13, 2026+-1 BTC$93.7K
- May 13, 2026+0 BTC$79.3K
- Mar 31, 2026+0 BTC$375.4M
- Mar 31, 2026+0 BTC$458.7M
- Mar 31, 2026+0 BTC$147.5M
SSM vs XXI: frequently asked
Which company holds more Bitcoin, SSM or XXI?▾
Twenty One Capital (XXI) holds 43,514 BTC, compared to Sono Group N.V.'s (SSM) 68 BTC — roughly 635.3× more.
What's the total Bitcoin value on the balance sheets of SSM and XXI?▾
SSM holds $4.1M worth of Bitcoin at current market prices. XXI holds $2.6B.
Who has a lower cost basis per BTC, SSM or XXI?▾
SSM's average cost is $73,000.02 per BTC. XXI's is $84,865.00. SSM is the lower cost basis.
When did SSM last buy Bitcoin?▾
SSM'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.