All Cryptos are back on steam again.

Somebody really needs to explain what is happening with the cryptocurrencies, everything seems to go down all at once and come up again all at the same time (with the exception of a few though).

Now, for example, Etherum has done a 30.53% rise today alone jumping from less than $250 this morning to over $300 at the moment. All others too with varying degrees of percentage increments on the positive outlook.

What exactly is going on? Are some dark forces at play here manipulating the cryptocurrencies world or what?