Among the top 5 cryptoassets,
Bitcoin Cash saw the worst loss where its price fell by 93%.
No surprises there. Who would have thought that a trash coin which has a civil war and splits itself in to two even more trash coins, both headed by scammers, would be a good store of value?
Their decline is related to hard fork events on the platform. In particular, the hard fork event of Bitcoin at the end of 2018 has caused Bitcoin and Bitcoin cash to be greatly affected, causing them to decline sharply in the long run. You see that many developers want good markets back by creating the hard fork, but the results go against their hopes.