Most of the altcoins are down 90% from their peak valuations in 4th QTR 2017. Only a few cryptos have fared better and these include Ripple, Stellar and Ethereum. Others like Cardano and NEO have witnessed bloodbaths.
indeed at that time both bitcoin or altcoin experienced many good developments. but at the end of this year all coins or altcoins suffered the same fate as well, there was a significant decline