Cryptostuff

Well, it works, in a way.

High volatility.

If it was about a long-term investment, I'd choose Bitcoin, Litecoin, Groestlcoin, Ethereum and OmiseGO. Should work out okay, at least.

Trading is another thing. In those terms "Kraken", "Bittrex" and "Bitfinex" should be among the best. However, I'm situated in Europe/Germany.

There is quite some potential, but you should really know what you do, and be willing to lose a lot of money, because you got it totally wrong.