A spot Bitcoin ETF looks like a single product and is really three arrangements stacked on top of each other: a trust that owns the asset, a custodian that holds the keys, and a set of authorised participants who create and redeem shares to keep the price near the value of what is inside. Almost every question that matters about these funds — why two of them holding the same asset trade at different prices, why one costs four times another, what happens to your shares if something goes wrong — is answered in one of those three layers.
Very little of that is hidden. It is written down in prospectuses, custody agreements and daily holdings disclosures. It is simply not written for readers, which is why the same handful of misconceptions survive years of coverage. A headline fee is not the cost of holding a fund. A large fund is not automatically a safe one. An outflow is not automatically selling pressure, because in-kind and cash settlement do different things to the market.
We read the documents. Where a fund discloses its custodian, its fee schedule, its settlement mechanics or its tracking record, we quote it and date it. Where a fund does not disclose something — and several do not disclose things readers assume are public — we say that plainly rather than filling the gap with an estimate.
GBTC charges 1.50%, IBIT charges 0.25% — but that gap doesn't explain why GBTC still holds billions in assets, why long-time holders can't easily leave…
IBIT's custody arrangement is documented in a BlackRock SEC filing; the claim that GBTC uses the same custodian comes only from a third-party comparison site…
IBIT is a Delaware trust, not a mutual fund, and its bitcoin sits mainly with Coinbase, with Anchorage added as a second custodian in April 2025.
One product holds bitcoin. The other holds CME futures contracts that must be rolled forward, at a cost that has looked very different depending on when…
Since July 2025, a redemption can move coins out of a fund without forcing a spot sale.
The figure that runs across every market dashboard each evening measures net share creation and redemption, not gross Bitcoin trading.
An ETF share is a claim on bitcoin held by a named custodian, not the coin itself — and CoinDesk's own custodian list for four major…
We do not forecast the Bitcoin price, and we do not tell you which fund to buy. A page that ranks funds without publishing the method behind the ranking is an advertisement with a table in it. Where we compare two funds we state the exact figure being compared, the date it was taken, and the document it came from.