A big drop this week? According to weekly data from coinmarketcap, bitcoin only dropped 2%, so you don't need to be overly surprised. This is a normal decline.
Since traders often trade altcoins, when BTC declines, it's more likely that traders will be liquidated due to the decline this week.
Yes, a new ATH is predicted, but wait until the end of this year—a decline to $90K is possible, but for me, this is pessimistic.