In my opinion, the correlation between bitcoin and altcoins is, seeing the blasting price of bitcoin, many altcoins holders can't control themselves, sold their assests for investment that fund on bitcoin & enjoy the blasting value advantage. that is why so called altcoins are get drop badly but due to having large trading volume of top altcoins, people also investing on those but a little.that is why those top altcoins pump but slightly
before trading altcoins, indeed one of the most important things we have to understand is the correlation between bitcoins, and they are both correlated,
but only a few altcoins in my opinion are correlated with bitcoin, yup that is Ethereum, Bitcoin Dump, Ethereum dumps, and Bitcoin pump,
Ethereum is also a pump, the real correlation is seen in the market. but other altcoins tend to experience the opposite,
yes and have to wait for Bitcoin sideways or experience an accumulation phase and you will see an altcoin pump.