iShares Bitcoin Trust
The fastest-growing ETF in history; brought Bitcoin into brokerage and retirement accounts.
- Listing
- IBIT on Nasdaq Global Market MIC XNMS
- Type
- ETF
- Manager
- BlackRock
- Strategy
- Passive — spot Bitcoin
- Domicile
- United States
- Size
- $43.4bn — investments at fair value, as reported at 2026-06-30
Fund identity
A single share class.
Series and class identifiers and their names come from the SEC’s Investment Company Series and Class report — the registry that assigns them, not our own naming. This fund holds Bitcoin, which is a covered asset here.
Where the size figure comes from
| Reported | $43.4bn |
| What it counts | investments at fair value |
| As of | 2026-06-30 |
| Source | SEC 10-Q, us-gaap:InvestmentOwnedAtFairValue |
This trust does not tag a net-assets figure. What is published is the fair value of the bitcoin it holds, which is nearly but not exactly the same thing — fee accruals sit between them.
Our earlier undated figure was $80bn; this one carries the reporting date above and moves only when the fund files again.
Holdings — single-asset trust
Compiled by Finance Foundation from the fund’s own published holdings disclosures as of Q2 2026 (seed-0.7 · marketcap-1 · 2026-08-30), ranked by the fund’s stated portfolio weight. Only holdings that are themselves covered entities are shown, so this is a subset of the top holdings, not the full portfolio, and no weights or share counts are published. Fund portfolios turn over — check the manager’s own disclosure for a current list. Sources.
Approximate reference values from public sources · seed-0.7 · marketcap-1 · 2026-08-30 · not real-time. See data & methodology.
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