I was wondering what happened to coin prices in 2018, when market is already saturated and kind of stable. To get a point I check the random coins (15 coins that I analyse in my posts) graphs and their price changes.
During this evaluation I have noticed similarities between the coin prices in the graph extremes (points where there is low point of price or peak in the value of price). BTC, LTC, MOnero, ZCoin, SteemCoin got sharper changes on the graph and other coins got smoother changes in the price graphs.
What I might see from those presentations of price graphs is that coins are following similar price shape, or that they are acting as kind of a clones. reason for this by my opinion is that mostly changes in price come from mining and not for investing in the specific coin.