Subject: File No. SR-CboeBZX-2018-040
From: Alexander Niski

July 18, 2018

To whom it may concern,

I urge you to approve Cboe BZX Exchange Inc.'s proposal for a Bitcoin exchange traded fund. Blockchain's immutable ledger technology is a powerful tool capable of improving coordination between individuals, institutions, and nations, and the adoption of a Bitcoin ETF will legitimize the cryptocurrency market further.

If you want to promote the growth of an novel technology, and consequently the growth of the US economy, you will seriously consider this proposal. When we encourage the emergence of new methods and innovation we will reap the benefits down the line. Let's invest in the future.

Thank you,
Alex