It used to be possible in Bitcoin but now it's being absorbed in to the financial system it is reverting to the standard figures, currently Bitcoin is 2x capital markets but that is slowly reducing. That means you can expect double digit percentages going forward but read this
https://www.quora.com/How-do-I-improve-my-daytrading/answer/Matt-Awd to make it clearer.
What that means is to find an 'edge' you need to either take the profits away from the middle tier, which Bitcoin didn't have until recently and is growing exponentially, or you trade at low timeframes to bypass the middle completely, which requires tech retail don't have access to. So my question is this, if you had access to a triple digit percent plus per year process would you use it, because going forward the financial system will not allow anything above 2x capital markets, no funds will be able to produce it going forward
http://www.eurekahedge.com/Indices/IndexView/Eurekahedge/682/Eurekahedge_Crypto_Currency_Hedge_Fund_Index, an exchange is the only way the group found to be able to provide access to triple digit percentage returns without inducing the hell that the Middle tier produce when you take their fees for your returns.
And if you think people with knowledge and access to the best cannot know the future you can see what the funds had access to in December to readjust portfolios
https://www.quora.com/Will-Bitcoin-go-up-in-2018/answer/Alister-Aw which is 'magically' coming true. The question I've been asked to ask is "are you happy with 100% of 50% using MT4 or 50% of 500% using fund tech", the expectation is everyone will choose the first one.