Bitcoins volatility is cannot be controlled we do not know when it will go high. For as long as mamy customers ordered and invest bitcoin the flactuation would remain higher. but if investors dump the coins the price would decrease.
I think No one can control the volatility of bitcoin. In fact it is one of the best feature that we surely liked. Although there where times that it has the ups and down of its price but it cannot affect to lose our interest in bitcoin. Good thing about being its volatile is we can earn much more by keeping them till the price of bitcoin will higher. Being volatility of bitcoin is not a hindrance but it is the best and thrilling part.