This is the worst possible way to own Bitcoin. You pay a massive premium - I think right now buying GBTC is buying Bitcoin at over $30,000 based on the amount they have. If that premium ever goes away (for example, if open-fund ETFs get approved), GBTC will tank relative to BTC. If it was shortable, the smart trade (if you could handle some temporary pain if the premium increases) would be to buy BTC at $23k and short the equvalent amount of GBTC and make a free $7k+. But it's not easy to short, and markets can be irrational in the short-term so that premium could go up.
For those of you needing more of a crack hit : Largest U.S. cryptocurrency exchange Coinbase files for IPO as bitcoin soars past $23,000
He sent this hot garbage soaring again with a tweet. Man, if I were some of these guys, I'd buy into some garbage coin and say something nice about it and profit. lol. Is it even regulated?