Related: Bitcoin and Cryptocurrencies Explained in 1 Minute

4. Amplify Transformational Data Shrg ETF (BLOK)

The BLOK ETF also focuses on companies that are developing blockchain or blockchain-related technology.

According to Gartner Group, Blockchain is estimated to have delivered $4 billion in business value-add or technology innovation in 2017, with that growing to $21 billion by 2020, $176 billion in 2025, and $3.1 trillion by 2030,” said Amplify, BLOK’s issuer.

BLOK is up 1.25% Wednesday according to Yahoo Finance.

Related: How the Brilliance of Blockchain Overshadows Bitcoin

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

The LEGR ETF tracks the Indxx Blockchain Index. That benchmark follows “companies across the globe that are either actively using, investing in, developing, or have products that are poised to benefit from a new technology known as blockchain.

LEGR is up 0.74% Wednesday according to Yahoo Finance.