When the price falls kings, like ETH and BTC, the other altcoins also sink in price. And still this is a temporary phenomenon, growth should be. Maybe not in summer, but in autumn, but we will fix growth for 2018.

All coins in the market are dropping, because when the market is hit by the sudden reddish time especially the bitcoin in which its value are dropping ,then there would be possibility that all coins in market index will also drop or fall of its price value , because of the demand and supply of every coins in the market.

today is looking not like price manipulation
just a cryptopanic- peoples drop his coins, because cant find a reason for the nearest growth

There is not enough demand in the market for coins to make the cost worthy. And many sell coins to buy bitcoin for 7 thousand

I think this is a rumor created every year, for personal gain, just like in January of the previous year.
This is also possible because of the prohibition of Bitcoin and cryptocurancy activities in China, and by certain parties in spreading the negative issue about bitcoin, so many people are afraid, and trigger a lot of panic sales, so the price goes down.

All coins are dropping because somebody want to buy them cheap, so they need to do every way to spread FUD to the whole crypto and bring the price back down. After that they will buy the dip and create a FOMO time to make big profits.

Because the real demand of Bitcoin is not that high in which if there is any development or news that will not favor the Bitcoin market then it will create FUD to the people making them to panic selling affecting the price of Bitcoin and the whole crypto market too because as what i have observed that the market will in difficult everytime Bitcoin is in dip.

Its a dip in price, these stuffs always happen here in crypto and just to let you know, the situation isn't that bad .. crypto market had bad status in the past! you could look into bitcoin's graph and think about the dip, either buy some coins with a good discount, otherwise dump and help making peoples write the same type of threads.

The price movement of once coin is based on the demand and supply of it in the market cap. Once the supply is bulky and buyer is too small, that is result to price fall.

I suppose that altcoins price up and down depends on Bitcoin stability or maybe it is just a cycle of the market, as when the market had reached the peak, it of course will take a down. And I think there are still many reasons for this dump in prices as it has been witness currently. Thus, when all of reasons are answered, the price will rise again.