| Date | Source | USD | Sentiment | |||
|---|---|---|---|---|---|---|
Fidelity Advantage Bitcoin ETF 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.


Marathon Digital (MARA) holds 35,303 BTC, compared to Fidelity Advantage Bitcoin ETF's (FBTC.TO) 13,982 BTC — roughly 2.5× more.
FBTC.TO holds $919.5M worth of Bitcoin at current market prices. MARA holds $2.3B.
Cost basis disclosure is inconsistent across these two entities; check each company's detail page for per-purchase history.
FBTC.TO's last BTC purchase isn't in our tracked history yet.
MARA disclosed a -3,386 BTC purchase on May 11, 2026.