If an altcoin is being dumped, it usually ends up at 1 satoshi with no chance of revival. Some don't even survive their ICO and get dumped right at the start. You can see many of such failed shitcoins at altcoin exchanges until they eventually get abandoned, delisted, and soon completely forgotten.
I saw a lot of coins like this one during the last few months, i have been trading for a while.. That happened to EMC20, it was a very good coin who did more than x4 in just a week and a half.
And now it is below 70% of that...