From my memory, every time when Bitcoin went up, many of the altcoins went down because people wanted to climb on the Bitcoin rise. What do you think?
I agree as we know that people has a FOMO mentality, if the bitcoin will be having a rally they will sell their alts and take a ride on the rally of bitcoin. This scenario will let the altcoins dumps with no buyers and bitcoin will make a good rally with those FOMO buyers that makes it spike.