Yeah many of time the things been noted from 2017 that when the Bitcoin moving up rapidly the other alt coin being crashed and this time we have looked up the some of good coins like Eth Hex and some few coins getting up with bitcoin pumping wave very faster with it. Specially Ethereum been crossed 320$+ and go on. Hoping the other alt coin will get a good move with bitcoin itself.
we have just seen the real evidence that when the price of bitcoin rises, the price of altcoin also rises, like ethereum. Well, although not all altcoins are affected, but I feel that altcoin price increases will definitely happen when bitcoin prices rise. it happened a long time ago.