There is some correlation to this though we have to understand that this is not the case all the time. When Bitcoin is rising, it is also possible that some altcoins can be joining the party but of course the invitation can only be for a select few as not all can be accommodated, so to speak. So how come when Bitcoin is rising, the interest with altcoins can be falling? Well, it can be because investors and traders are focusing more on Bitcoin since they know that it can be making more money for them leaving many altcoins behind. However, when things are starting to balance out, some attention can start to be diverted to altcoins like what we are experiencing right now with Ethereum, Cardano, XRP, Dot and some more coins.