Subject: File No. SR-NYSEArca-2021-90
From: Alex Reeb
Affiliation:

Feb. 28, 2022



Dear SEC,

I’m writing to support the conversion of Grayscale Bitcoin Trust (Symbol: GBTC), currently the world’s largest Bitcoin fund, to the first Spot Bitcoin ETF in the United States.

I recognize that there are numerous technical and non-technical challenges. However, I feel confident that these can be overcome in a timely manner.

Thank you,
Alex

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Alexander B. Reeb, Ph.D., P.E.