A lot of cryptocurrencies trade on low volumes. Any new information or bigger then average buy/sell-orders can have a more exacerbated impact in such an environment. Having not a lot of spending opportunities is helping neither. An article about (mass) adoption of innovative technology: https://steemit.com/bitcoin/@remyremy/a-50-drop-in-a-couple-of-days-and-a-35-recovery-in-24-hours-should-you-worry