Hashdex Files with SEC for Combined Spot Bitcoin and Ethereum ETF
Bloomberg analyst James Seyffart provided detailed insights into Hashdex’s latest filing with the Securities and Exchange Commission (SEC) for a dual Ethereum and Bitcoin ETF.

Because Bitcoin
June 18, 2024
In a recent series of 𝕏 posts, Bloomberg analyst James Seyffart provided detailed insights into Hashdex’s latest filing with the SEC for a dual Ethereum and Bitcoin ETF. The proposed ETF, which will be market cap-weighted, is expected to enhance the investment landscape for digital assets.

ETF Structure and Approval Timeline
Hashdex’s filing, as outlined by Seyffart, indicates that the ETF will be weighted based on the market capitalization of the included assets, specifically Ethereum and Bitcoin. This approach aligns with industry expectations and aims to provide a balanced exposure to the two leading cryptocurrencies. Seyffart notes that the final deadline for SEC approval is anticipated around the first week of March 2025.
Inclusion of Other Digital Assets
An interesting aspect of the filing is the provision for the potential inclusion of other digital assets. Seyffart highlights language in the document that allows for the addition of other cryptocurrencies as they receive approval from the SEC. This flexibility could make the ETF more adaptive to the evolving digital asset market.
Current Crypto Index in Brazil
Seyffart also points out that Hashdex already operates a crypto index ETF in Brazil, known as HASH11. This fund includes a diverse range of assets, with Bitcoin and Ethereum making up 90% of its holdings. The successful operation of HASH11 in Brazil sets a precedent and provides a model for the proposed US ETF.
Eligibility Criteria for Index Inclusion
The proposed rule change specifies stringent criteria for the inclusion of crypto assets in the ETF’s index. To be eligible, assets must:
- Have active tradable markets on at least two core crypto platforms.
- Be supported by at least one core custodian.
- Maintain a median daily trading volume in USD pairs.
These criteria are designed to ensure that only well-established and liquid assets are included in the ETF.
Custodian Arrangements
Seyffart mentions that Hashdex will utilize at least two custodians for the ETF, specifically Coinbase and BitGo. This dual-custodian approach aims to enhance security and reliability for the fund’s holdings.

Market Implications
The introduction of a dual Ethereum and Bitcoin ETF by Hashdex could significantly impact the cryptocurrency market. By providing institutional investors with a regulated and diversified investment vehicle, it may enhance liquidity and stability in the market. Moreover, the potential to include other digital assets as they gain regulatory approval offers a dynamic and adaptable investment product.
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