Yeah, That's true that there has been movement in the altcoins when the Bitcoin goes 5400 to 8400. We all think that if the king The Bitcoin rises so the altcoins will follow the king Bitcoin. But there are times like the Bitcoin goes high but and the altcoins doesn't follow the Bitcoin. There might be two reasons. The first one, people might dump the altcoins having no faith in them and the second one the increasing of the Bitcoin might not be sufficient for the altcoins so the Bitcoin has to rise more.
This is our advantage to buy more altcoin because the market encountered dump which it's more affordable to buy in lower price but still it can take risks so make some plan for you what the best thing to do.