Steeper declines could mean that shares could lose most or all of their value. In Sept. As an investment vehicle which trades over-the-counter, GBTC is available for investors to buy and sell in the same way as virtually any U. Learn other ways to invest in cryptocurrencies like Bitcoin. Because the Trust is currently the only fund of its kind specifically for bitcoin, investors have been paying a high premium. Meanwhile, trading actual Bitcoin means dealing with all sorts of limits and transactions fees.