I am sure you are not alone with the big question why Bitcoin can come down after it has been going up? Well, the best answer is that it can also get tired of going up and that is why it has no choice but to go down so that it can be gathering the necessary energy for another big run. As for me, this is a big opportunity to make some money. Since you are sure that after going up, it can come down you just have to determine when it might do the trick. Volatility is a big hallmark of Bitcoin and there is nothing we can do about it...we either accept it and go with it or altogether get out from the industry as it is always risky here, high rewards but high risks at the same time.