Subject: File No. SR-CboeBZX-2018-040
From: Russell T Smith, Ph.D.
Affiliation: Director of Energy and Consulting, ConsenSys

July 11, 2018

I believe that Bitcoin and Ethereum have reached sufficient maturity and adoption as digital value ecosystems. The public should have the opportunity to invest in the growing asset class through tradition financial instruments like an ETF. If the ETF proposal is rejected, the SEC needs to give clear instructions for what needs to be done to accept a proposal for a Bitcoin or Ether ETF. Every effort is being made to be compliant and the SEC should not block main stream investors from this emerging asset class.