Grayscale holders are probably the biggest sellers, you're right about that. But any of these ETFs can be shorted. If the issuer seeds the fund with $100 million, then there is already $100 million worth of shares in existence.
Grayscale holders are probably the biggest sellers, you're right about that. But any of these ETFs can be shorted. If the issuer seeds the fund with $100 million, then there is already $100 million worth of shares in existence.