BLOK: Look At Blockchain's Uses, Not Just Bitcoin's Value (NYSEARCA:BLOK) | Seeking Alpha
Nate Geraci on Twitter: "So the Amplify Transformational Data Sharing ETF ($ BLOK) now holds **Canadian bitcoin ETFs**... You can own Canadian bitcoin ETFs w/in a US blockchain ETF, but you still can't
3 ETFs to Buy the Blockchain in 2018
All Blockchain ETFs Are Not Created Equal: BLOK vs. LEGR | Nasdaq
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BLOK ETF Thriving as Cryptocurrencies Continue Hitting New Highs