today bitcoin is crash
bitcoin price down until 811 dollar/bitcoin
you can see all altcoin price incraese
so bitcoin price always corelation altcoin price
When the bitcoin is rising up , altcoins are being down
when the bitcoin is decreasing , altcoins are being down.
when the bitcoin is stable, altcoins are rising up.
That is my thought at the present.
i agree with this one.
because whenever bitcoin price is volatile, it doesn't matter for the traders that it is going up or going down, the volatility is the only thing they need to make profit so they go to bitcoin market to make profit and altcoin market crashes hard.
also you should remember that to all these things that we say there is always an exception.