Jul 05, 2021 No matter what, cryptocurrency should occupy only a very small part of your portfolio. Exactly how much is completely up to you. But you should be wary of investing more than 10% or even 5%. Understand that cryptocurrency isn't an investment in the same way a stock is. Much like investing in gold and silver, it doesn't pay interest or dividends. To the degree that cryptocurrency will be a good investment all depends entirely upon its price increasing significantly – and staying there for a.