Since 2022, I think there's about 500 times when the price has jumped more than 3.5 standard deviations away from the 20min mean... (my data is sketchy with some gaps though, so don't take that as gospel).
Charting what day of the week these happen on makes me wonder if my data is broken? (Or do the "whales" spend the week teasing everyone, then go on their feeding frenzy from Friday on?)