BlackRock‘s iShares Bitcoin Trust (IBIT) is the world’s largest Bitcoin exchange-traded fund, launched on January 11, 2024, following the SEC’s approval of the first cohort of spot Bitcoin ETFs. IBIT reached $10 billion in assets under management faster than any ETF in financial history — within 7 weeks of launch — becoming the clearest single data point for the scale of institutional demand that had been waiting for a regulated Bitcoin access vehicle. As of 2025, IBIT manages over $50 billion in Bitcoin on behalf of institutional and retail investors.
BlackRock itself is the world’s largest asset manager with approximately $10 trillion+ in AUM, and its entry into Bitcoin via IBIT was widely regarded as the final seal of institutional legitimacy for the asset class.
Background
BlackRock’s CEO Larry Fink was famously skeptical of Bitcoin in early years, calling it an “index of money laundering” in 2017. His reversal — publicly endorsing Bitcoin as a “legitimate financial instrument” in 2022–2023 — preceded BlackRock’s spot ETF application and was seen as a watershed moment for institutional acceptance.
BlackRock filed its spot Bitcoin ETF application in June 2023, citing Coinbase as its proposed custodian and Coinbase Prime as the surveillance-sharing partner. BlackRock’s record of ETF approvals (575 out of 576 SEC applications approved historically) was cited as a reason markets expected eventual approval.
IBIT Key Statistics (at launch through 2024)
| Metric | Value |
|---|---|
| Launch Date | January 11, 2024 |
| Fee | 0.25% (0.12% promotional) |
| Time to $10B AUM | ~7 weeks (fastest in ETF history) |
| Custodian | Coinbase Custody |
| Ticker | IBIT |
| Exchange | NASDAQ |
Significance
- Fastest ETF to $10B in history — surpassing records previously held by gold ETFs that took years
- Democratized institutional access — pension funds, RIAs, and brokerage platforms could now allocate Bitcoin without self-custody risk
- Broke the OTC barrier — redirected institutional Bitcoin demand from Grayscale GBTC (which had a premium/discount structure) to a more efficient liquid vehicle
- Options launch — IBIT options were approved for trading in late 2024, adding derivatives exposure
Related Terms
Sources
- iShares Bitcoin Trust (IBIT) — official BlackRock product page.
- Bloomberg — IBIT record — coverage of the AUM milestone.
- Financial Times — Larry Fink’s reversal — coverage of BlackRock CEO’s change of stance.