There is a correlation between altcoins and BTC, when the price of BTC touches ATH the altcoins will prepare the positions on charts to rocket up the ATH price too. In rare cases, BTC goes up while the altcoins stay on the same price range but the few altcoins can go as higher as possible. Let's see what will happen in altcoin markets if BTC can go higher than $30k.
+1
There are some altcoins which goes up when bitcoin moves up as well. These altcoins are belong to the top 10 altcoins in CMC ranking such as ethereum, ripple or binance. While other keep on dumping or staying the same price level. Bitcoin dominance still conquering the market and I think anytime other altcoins will follow the same track. There is a correlation between altcoins and bitcoin but most of the time they are negatively correlation.