Is there a particularly reason why all Coins are dropping simultaneously this week? If you
look at the charts you will see a pattern
if the reason why so many altcoins go down simultaneously I do not know it, and quite unexpectedly that all this will happen as now, and there is a lot of panic going on right now, especially for new investors and new traders, they frantically sell off some of their coins, lose all the money they invest, it's really a mistake for those who have sold at a time when all prices are down.
Do you really believe people are going to only keep their coins waiting that other people sell before them? Some might be professional traders and there is also bots. All coins are linked to the Bitcoin.