Subject: File No. SR-CboeBZX-2018-040
From: Brian King, Ph.D.
Affiliation: Professor of History, Dine' College

July 12, 2018

Dear SEC,

I strongly support the approval of this ETF. This technology is history in the making. American Citizens should have a right to be a part of it.

Thanks,

Brian King, Ph.D.
Faculty
Department of Social and Behavioral Sciences
Co-chair of the General Education Committee
Dine' College