Subject: File No. SR-CboeBZX-2018-040
From: Kavin J Cook, Mr.

August 21, 2018

Dear Members of the SEC,

I'm writing to show my support for the Bitcoin ETF. As an investor in many different assets, I believe that Bitcoin should have the oversight and protection of an ETF through the SECs approval.

This is a new asset class that is rapidly spreading the globe and with the SEC being one of the largest influencers worldwide, anything but an approval would forfeit the opportunity to set the cryptocurrency standard.

Thank you,
Kavin J. Cook