Subject: File No. SR-NYSEArca-2021-90
From: William D. Black
Affiliation:

May. 06, 2022

Dear SEC, 

I write to you as a GBTC shareholder, in support of the conversion of Grayscale Bitcoin Trust (OTCQX: GBTC) to an ETF. 

The discount to NAV in GBTC has been around 25%, on average, this year. This means that the price of GBTC is less than the price of Bitcoin, the asset itself. Given that GBTC has about $30bn in AUM, shareholders like me are experiencing a destruction of value of around $7.5 billion. 


Therefore, the conversion to an ETF would substantially improve my potential success in the investment. 

I’m writing from Michigan, with gratitude for the opportunity to express my view and with the hope that you will approve this conversion and protect the interest of investors. 

Sincerely, 


William D. Black