Subject: File No. SR-NYSEArca-2021-90
From: Erik Engquist
Affiliation:

May. 08, 2022

Dear SEC: 


I write to advocate for GBTC to be converted to an ETF. Here's why: 


1. The ETF would more effectively track the price of Bitcoin. 


2. GBTC would be uplisted from OTCQX to the NYSE Arca. 


3. Grayscale is lowering management fees. Changing GBTC to an ETF would reward this positive change and incentivize more of it. 





Erik Engquist