Volatility is the feature of any currency whether digital or physical.  All currencies are volatile; many of them are controlled by central authority. Bitcoin is a decentralized, autonomous currency, so no one there to control its value. Up and downs of prices will go on forever. Bitcoin has dropped many time but due to trust and confidence of its investors it has bounced back every time. But after crossing $19000 mark bitcoin is dropping continuously. Bitcoins increased transaction charges, increased transaction time may be the reason behind this. Along with many bitcoin favoring countries are banning it by having security reasons. This has paniced bitcoin investors. Soon situation will change.