Examining past formations on the chart provides insight into future price movements.

$BTC experienced a lag of 2-3 weeks while passing its previous peak during the previous bull period. But when it passed, the price continued rapidly.

Altoins joined the rally later.

As for altcoins, while the strong 10-20 that existed in the previous period were making new peaks, more of them were listed during that bull period and the potential of fresh projects is higher, so protect your investments.