SOSvsMARA
SOS Limited vs Marathon Digital
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
SOS
MARA
BTC holdings
803 BTC
35,303 BTC
Market value of BTC
$51.3M
$2.3B
Average cost per BTC
—
$68,236.16
Total cost basis
—
$2.4B
mNAV (market cap ÷ BTC value)
0.32×
2.05×
Sats per share
5.0k
9.3k
Last disclosed purchase
Dec 31, 2025
- Dec 31, 2025+803 BTC$71.0M
- Dec 30, 2024+0 BTC—
- May 11, 2026+-3,386 BTC$278.1M
- May 11, 2026+0 BTC$1.5B
- Mar 26, 2026+0 BTC$1.1B
SOS vs MARA: frequently asked
Which company holds more Bitcoin, SOS or MARA?▾
Marathon Digital (MARA) holds 35,303 BTC, compared to SOS Limited's (SOS) 803 BTC — roughly 44.0× more.
What's the total Bitcoin value on the balance sheets of SOS and MARA?▾
SOS holds $51.3M worth of Bitcoin at current market prices. MARA holds $2.3B.
Who has a lower cost basis per BTC, SOS or MARA?▾
Cost basis disclosure is inconsistent across these two entities; check each company's detail page for per-purchase history.
When did SOS last buy Bitcoin?▾
SOS disclosed a 803 BTC purchase on December 31, 2025.
When did MARA last buy Bitcoin?▾
MARA disclosed a -3,386 BTC purchase on May 11, 2026.