What Spot Bitcoin ETFs Are, and How They Differ From Holding BTC Directly
A neutral walkthrough of how spot ETFs are structured and how they compare with self-custody.
A spot bitcoin exchange-traded fund is a fund that holds actual bitcoin on behalf of its shareholders, with a custodian managing the keys. Shares in the fund trade on traditional stock exchanges and track the market price of bitcoin, minus the fund's fees.
Buying a share of a spot ETF is not the same as owning bitcoin. You own a claim on the fund, which in turn owns the coins. You cannot withdraw the underlying bitcoin, send it to a wallet, or use it on-chain — the custodian holds it for you.
The main practical difference is control. Self-custody puts responsibility for keys on the individual holder; an ETF puts it on the custodian and the fund's regulatory framework. Both approaches have trade-offs, and neither is universally better.
This article describes how the product works. It is not a recommendation to buy, sell, or hold any specific ETF or cryptocurrency.