What is a bitcoin ETF?

A bitcoin ETF works like any exchange-traded fund: investors buy and sell its shares on a stock exchange, and the price follows the value of what the fund holds. For a spot bitcoin ETF that holding is bitcoin. The US products approved in 2024 are trusts that list "Commodity-Based Trust Shares" or "Trust Units", and each trust holds its bitcoin through a bitcoin custodian (SEC, January 10, 2024).

The SEC order lists the commitments of the exchanges: each trust publishes its net asset value, and an intra-day indicative value is disseminated "every 15 seconds". Registered market makers quote the shares. The SEC also noted that "bitcoin custodians only hold keys to such bitcoin and not the bitcoin itself"; What is crypto custody? explains what that means.

Yes, spot bitcoin ETFs are approved in the US. On January 10, 2024 the SEC approved rule changes of three exchanges to list eleven spot bitcoin products, among them the iShares Bitcoin Trust, the Fidelity Wise Origin Bitcoin Fund, the Grayscale Bitcoin Trust and the ARK 21Shares Bitcoin ETF (Release No. 34-99306). SEC Chair Gary Gensler stated the same day that the SEC had approved the products and had not approved or endorsed bitcoin. He called bitcoin "primarily a speculative, volatile asset". He also noted that the D.C. Circuit had found the SEC "failed to adequately explain its reasoning" when it rejected the earlier Grayscale application.

A UCITS fund cannot hold bitcoin directly because the UCITS Directive does not list crypto-assets among the assets a UCITS may buy. Article 50(1) names transferable securities, money market instruments, units of other funds, deposits and financial derivatives. ESMA wrote on June 26, 2025 that "crypto-assets are not explicitly eligible for direct investments under the current UCITS framework". A UCITS that buys bitcoin notes instead meets a second limit: it may put no more than 5% of its assets in securities of the same issuer (Article 52(1)).

ESMA advised the European Commission to allow "limited indirect exposures (up to 10%) to alternative assets". It added that allowing direct investments in crypto-assets such as bitcoin might require broader changes to the directive.

Bitcoin ETP is the umbrella term for any exchange-traded product on bitcoin. In Germany the products are crypto ETNs, and in BaFin's usage the meaning of crypto ETN is an exchange-traded bearer bond that tracks the performance of an underlying, in most cases bitcoin or an index of crypto-assets (BaFin, Risiken im Fokus 2026). Bitcoin ETPs in Germany trade on Xetra, where 44% of all listed ETNs referenced crypto-assets in December 2025. Issuers of physically backed ETNs hold the bitcoin with a custodian.

An ETF is a fund, an ETN is a debt security of its issuer, and both are ETPs. An investor in a bitcoin ETF or ETN owns a security and no coins, and carries the risk of the product's issuer or custodian. This page gives no investment advice.

In Germany, crypto ETNs are bearer bonds and trade as securities. BaFin warns that the few specialized custodians behind physically backed ETNs rely on an even smaller number of key service providers, so one failure could hit many ETNs at the same time. In June 2020, Deutsche Börse became the first exchange worldwide to launch trading in centrally cleared crypto products. Crypto ETN trades on Xetra are cleared by Eurex Clearing, whose registered office is in Frankfurt am Main (Deutsche Börse, Eurex Clearing). In Austria, EU securities law applies to ETNs, and the FMA is the competent authority for crypto-asset service providers under the MiCA-VVG.

Switzerland is outside the EU. FINMA covers crypto ETPs together with structured products under Article 70 of the Financial Services Act and states that the collateral behind them needs legal protection in the insolvency of the custodian. SIX Swiss Exchange and BX Swiss have their own listing rules for crypto ETPs and their collateral (FINMA Guidance 01/2026, January 12, 2026). This page gives no legal advice.