1. Amplify Transformational Data Sharing ETF (ARCA:BLOK)

Total assets: US$893 million

The Amplify Transformational Data Sharing ETF launched in January 2018. This fund invests in diverse areas of the blockchain sector, such as companies with blockchain platforms, companies developing blockchain applications and blockchain mining companies.

Amplify is an actively managed blockchain ETF, which makes it stand out against the other ETFs on this list. It has 51 holdings with an expense ratio of 0.73 percent. The Amplify Transformational Data Sharing ETF’s top holdings include Metaplanet (OTCQX:MTPLF,TSE:3350), Robinhood Markets (NASDAQ:HOOD) and Galaxy Digital (TSX:GLXY,NASDAQ:GLXY).

2. VanEck Digital Transformation ETF (NASDAQ:DAPP)

Total assets: US$182 million

The VanEck Digital Transformation ETF launched in April of 2021 and tracks the price and yield performance of the MVIS Global Digital Assets Equity Index. The index is tied to the performance of companies whose revenues are at least 50 percent accrued from the digital assets economy, including exchanges, crypto miners and other crypto infrastructure companies.

DAPP has 22 holdings, 63 percent of which are headquartered within the United States, and has an expense ratio of 0.51 percent. Its top holdings include Strategy (NYSE:MSTR), Coinbase Global (NASDAQ:COIN) and Metaplanet.

3. Fidelity Crypto Industry and Digital Payments ETF (NASDAQ:FDIG)

Total assets: US$170 million

The Fidelity Crypto Industry and Digital Payments ETF, which launched in April 2022, also tracks the performance of companies involved in the cryptocurrency, blockchain technology and digital payments processing sectors. It has an expense ratio of 0.4 percent, the lowest on this list.

Of its 49 holdings, 73 percent are headquartered in the United States and 45 percent are involved in the Technology Services sector. Its top holdings include Coinbase Global, MARA Holdings and CleanSpark (NASDAQ:CLSK).

4. Global X Blockchain (NASDAQ:BKCH)

Total assets: US$162 million

Launched in July 2021, the Global X Blockchain ETF is a relatively new blockchain ETF. It tracks the price and yield performance of the Solactive Blockchain Index with a focus on companies in a variety of blockchain segments, such as, but not limited to, digital asset mining, blockchain applications, and blockchain and digital asset transactions.

At 0.5 percent, this blockchain ETF has the second-lowest expense ratio on the list. Global X Blockchain has 28 holdings, including Coinbase Global, Riot Platforms (NASDAQ:RIOT) and MARA Holdings (NASDAQ:MARA).

5. First Trust Indxx Innovative Transaction & Process ETF (NASDAQ:LEGR)

Total assets: US$99 million

The First Trust Indxx Innovative Transaction & Process ETF also launched in January 2018. First Trust has two types of companies it selects from for its portfolio: companies that employ blockchain and firms that develop it.

The fund consists of 102 holdings, including companies like NVIDIA (NASDAQ:NVDA), Advanced Micro Devices (NASDAQ:AMD) and Taiwan Semiconductor Manufacturing (NYSE:TSM). It has an expense ratio of 0.65 percent.