There's an ETF for that! Blockchain Technology

Wikipedia defines blockchain technology as "a decentralized, distributed, and oftentimes public, digital ledger that is used to record transactions across many computers so that any involved record cannot be altered retroactively, without the alteration of all subsequent block."

Visit blockgeeks.com for a great primer on blockchain technology and how it is changing the world of finance.  Below are the four ETFs that cover blockchain technology.   We've listed the tickers, names and expense ratios of the funds to consider:

• BLOK    Amplify Transformational Data Sharing                     0.70%
• LEDG    First Trust Indxx Innovative Transaction & Process   0.65%
• KOIN     Innovation Shares NextGen Protocol                         0.95%
• BLCN    Reality Shares Nasdaq NextGen Economy                 0.68%

Make sure to do your due diligence and understand the methodology of these specialty fund(s). Remember, these types of funds should not be a core holding due to their concentration / non-diversification.