Bitcoin we know is very volatile. there have been many episodes of volatility since the 2017 to date.
On many occasions, 20 to be precise, we have seen fluctuations of the prices above 20%. Here we see substantial price fluctuations excluding minor ones.
There have been up and down price movements. these movements have been caused by various reasons, even if it is often the same alternation of fear/euphoria that determines this volatility.
The list of the oscillations also includes the last amazing oscillation of 42% that occurred in October 2019