Looks like someone pressed the "Oh he's just bought in, let's drop the price by 4%" button again.
Seriously, it happens every time.
I hate that, happens to me too. It'll follow the same pattern for like 3 cycles, I'll buy in and it'll drop more. Or I'll sell at what looks like peak and it'll go up.
Fortunately for me that tends to only be immediately, and an hour or so later i am still coming out ahead.