Subject: File Number SRNYSEARCA-2021-90
From: mark zellers
Affiliation:

Oct. 20, 2021



Please approve Grayscale's application for a Bitcoin backed ETF.  Grayscale has offered GBTC for  an extended period of time and has proven to be a very legitimate business for me over the years. 


I have been with them since 2015 and they have done a fantastic job of taking care of customers.   Allowing them to convert this fund to an ETF would allow them to offer even better services to their customers.   I prefer an ETF backed with Bitcon rather than futures. 


Sincerely, 


Mark Zellers