Subject: File No. SR-CboeBZX-2018-040
From: Donald Mehrtens

July 11, 2018

To Whom it May Concern,

Blockchain technology presents a technologial movement that could change the world. The only factor surpressing that right now are the uncertainties and vulnerabilities in the Crypto trading market today. Backing from the SEC could change that and help kickstart a new era. I strongly support the listing and trading shares of SolidX Bitcoin Shares, issued by the VanEck SolidX Bitcoin Trust.
The SEC should be the global leader and set an example by relaxing the ETF rules to consider the approval of the SolidX Bitcoin ETF. It is time to unite globally and embrace the endless possibilities of blockchain technology, and the currencies, commodities, and eventually securities that come along with it. I am a determined supporter of this proposal.

Thank you for your time,

Donald Mehrtens