It's interesting how many of the top alt-coins directly followed yesterday's fall of Bitcoin. I took a look at some of the graphs and they were almost identical.
Makes you realize how much of market leader BTC is, and how closely so many other coins are tied to it.
When will they go back up? It's a waiting game, but they likely will. So, don't despair. HODL!
One things is sure: it's a good time to buy some coins, BTC included, if you've got something to invest!
As always, this is not financial advice, strictly my opinion.