Blockchain continues to capture investor interest as the technology keeps gaining mainstream attention – so much so that there are now 5 blockchain ETFs.

According to the World Economic Forum, “10% of the global GDP is predicted to be stored on blockchain platforms by 2027.” Here are five blockchain ETFs to consider investing in with the changing tides.

5 Blockchain ETFs to Profit From 

But first for those who want a better explanation of blockchain ETFs, here it is….drum roll…

1. REX BKCM ETF (NYSEArca: BKC)

With the newest launch of BKC today, a partnership between Rex Shares and BKCM Funds, it is clear that ETFs that look to blockchain is a segment that will continue to attract ETF issuers.

2. Innovation Shares NextGen Protocol ETF (KOIN)

The KOIN ETF is the first exchange-traded fund to use the twist of artificial intelligence and blockchain to identify and invest in blockchain innovators.

KOIN is up 0.73% Wednesday according to Yahoo Finance.

3. Reality Shares Nasdaq NexGen Economy ETF (BLCN)

The BLCN ETF holds shares of companies that committee “material resources” to blockchain technology research and development.

BCLN is rapidly attracting a following. It is up 0.53% Wednesday according to Yahoo Finance.

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.