- GBTC are selling Bitcoin-Core tokens for $6000 (over 10%) below market price and no one is buying them. Proof that it is Tether pumping the market and regular people are not buying even with insane discounts. Bitcoin core is a ponzi pumped by unbacked tethers. If more cash out the price wont hold. https://grayscale.co/bitcoin-investment-trust/#market-performance 21 comments btc