Have you spotted any trends in major price movements?

Since 2022, I've noticed around 500 instances where the price has surged over 3.5 standard deviations from the 20-minute average... my data’s not perfect, so don't take it as the absolute truth. Looking at what days these spikes happen really makes me question if there’s something wrong with my data. Is it just me or do the whales spend the week playing with us and then go all out on their buying sprees starting Friday? It seems like these price jumps never happen on Monday, Tuesday, or Wednesday. Hardly ever on Sunday or Thursday, but Fridays are pretty common, and Saturdays are even more frequent.