This is not the best time to invest as those coins can go even deeper than this time. This is the best time to shorting the market for the bump that can happen anytime.

it has been a long time since those coins were going to the moon and this is not a big surprise to see those coins were getting dropped as the correction before the next bump.
Bitcoin and ethereum were also playing a lot in this cases as people were liquidating their money for the bitcoin and ethereum too.