This because many people sell their coin under the ICO price, even I see the developers of that project be the big sell wall, so the price fall so far easily.
I think if holding coin for a long term, I'm not sure if the price can be back to normal again after fall so far, because I have hold a coin arround 5 years but the price still low even like a die coin. I think every coin we hold tht should have good developers, because without it, the coin can't show their advantages and their special feature, so who will be interested buy that coin?