Subject: File No. SR-CboeBZX-2019-004
From: Dina Pinto

Mar. 06, 2019

Dear Sir/Madam, 

It is in my opinion that Bitcoin to date has no solid ground on which to base a serious product such as an ETF on. 

It is volatile, manipulated by the very few and has no real use case. 

I can see a lot of people getting hurt both financially and in other ways by you accepting this proposal. 

It is in my humble opinion that this proposal be rejected. 

Kind Regards,