MARAvsXXI
Marathon Digital 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.
MARA
Marathon Digital
🇺🇸 US
35,303 BTC
$2.2B market value
XXI
Twenty One Capital
🇺🇸 US
43,514 BTC
$2.8B market value
Metric
MARA
XXI
BTC holdings
35,303 BTC
43,514 BTC
Market value of BTC
$2.2B
$2.8B
Average cost per BTC
$68,236.16
$84,865.00
Total cost basis
$2.4B
$3.7B
mNAV (market cap ÷ BTC value)
2.06×
0.64×
Sats per share
9.3k
12.5k
Last disclosed purchase
May 11, 2026
- May 11, 2026+-3,386 BTC$278.1M
- May 11, 2026+0 BTC$1.5B
- Mar 26, 2026+0 BTC$1.1B
- Mar 26, 2026+-15,133 BTC$1.1B
- Mar 2, 2026+972 BTC$63.9M
MARA vs XXI: frequently asked
Which company holds more Bitcoin, MARA or XXI?▾
Twenty One Capital (XXI) holds 43,514 BTC, compared to Marathon Digital's (MARA) 35,303 BTC — roughly 1.2× more.
What's the total Bitcoin value on the balance sheets of MARA and XXI?▾
MARA holds $2.2B worth of Bitcoin at current market prices. XXI holds $2.8B.
Who has a lower cost basis per BTC, MARA or XXI?▾
MARA's average cost is $68,236.16 per BTC. XXI's is $84,865.00. MARA is the lower cost basis.
When did MARA last buy Bitcoin?▾
MARA disclosed a -3,386 BTC purchase on May 11, 2026.
When did XXI last buy Bitcoin?▾
XXI disclosed a -1 BTC purchase on May 13, 2026.