Most institutions cannot buy Bitcoin yet due to current (lack of) regulations, but there appears to be a convenient way to trade Bitcoin through trading Bitcoin Investment Trust (GBTC) just as a regular stock on the stock market. GBTC price is directly derived from Bitcoin price with some premium. This premium may be considered as that buying a house with all the furniture, solar panels, golf club membership etc and can be more than recouped when selling. Furthermore, when Bitcoin appreciates value many times higher than the stock market and GBTC's price is a magnification of Bitcoin price (much more limited supply than Bitcoins), the small premium paid when buying GBTC is quite small when one sells GBTC in a couple of years when Bitcoin price is up 10 times or more if recent trend likely continue.

Also, most people likely have retirement accounts and it is currently not convenient or cost effective to set up and manage properly to buy Bitcoin directly, but can directly buy GBTC already. What do you think? Does anyone know another stock similar to GBTC to allow one to buy Bitcoin and with level? and any stock for doing similar to ether? Most people are familiar and comfortable to trade stocks compared with the rather new cryptocurrency trading.