Subject: File No. SR-NYSEArca-2021-90
From: Edison Ting

February 14, 2022

Please protect GBTC investors by allowing Grayscale do the right thing to convert GBTC to ETF. GBTC is currently traded about 26% NAG premium. Many investors including myself is suffering lost. Converting GBTC to ETF help to protect GBTC investors.