Subject: File No. SR-NYSEArca-2021-90
From: Richard Gerhauser
Affiliation:

May. 10, 2022

To whom it may concern: 
I am a retired physician and I am invested in the Grayscale Bitcoin Trust (GBTC) in my IRA account. I am hoping that the SEC will approve conversion of the trust to a bitcoin ETF. This will lower the fees I pay and will result in the price of GBTC to more closely follow the spot price of bitcoin. Other countries have spot BTC ETFs that are functioning well and I feel the USA is getting behind the curve on new technology. 


Sincerely, 


Richard Gerhauser MD MPH 
Cynical Assistant Professor University of Arizona College of Medicine.