Having shed $600 billion in three months, the cryptocurrency markets are having a torrid time. Theyll rally eventually, and when they do, more all-time highs may even be back on the agenda. With every single cryptocurrency mired in the red, singling out altcoins for underperforming seems a little unfair. But even without obsessing over USD value, analyzing the coins that have dropped the furthest from their ATH reveals 2018s most over-hyped assets.