First off, please don't take anything I say seriously. As always this is on opinion basis and not meant to be taken as financial advice. That being said, let me get into a few of my insights. GBTC have recently passed the $10 price target already, and I was being conservative. Now during this BTC halving period and how institutional cryptocurrency investors are reacting, I think the Grayscale Bitcoin Trust's price can pass the $15 threshold as well really soon (though I am primarily against institutional representation of BTC). This may make a nice profit turnover or portfolio hold.
