In every round of increases, it is impossible for all cryptocurrencies to rise; some will inevitably increase while others remain static.
When prices rise to a certain level, those that haven't risen will catch up, which is known as sector rotation.
The logic behind sector rotation is that bull markets often arrive suddenly, and by the time many people realize it, it is already quite late. At that point, everyone will look for those that haven't increased, leading to the catch-up effect.
This is a phenomenon of secondary trading caused by a collective subconscious behavior.
It can also be considered a trading tip.