I didn't quite understand what you mean. There are two strategies. The first is the purchase of one or more types of crypto so that it simply lies as a passive asset. This works well with bitcoin. The second strategy is arbitrage trading using the difference in rates. I would recommend the first method because the attitude towards digital trading is changing a lot now. Digital exchanges are forced to adapt to new laws. I can give Japan as an example. Read more about the opening of a new local platform in the cryptoblog. That is why I prefer to be conservative and accumulate a bitcoin package for a later perspective.