I believe a few or more people on JSP buy their divs, then sell for fg (rather than buying fg directly). Div pricing should generally reflect rmt price (I don’t buy but whenever I’ve looked in various games this seems to be the case).
Temporalis dupe abuse was just nerfed and these guys are cashing out their temporalis in bulk divs (literally thousands of divs), which they are then likely selling for cash. This is, imo, contributing to the steep decline again.
That, and the weekend is coming. Usually pricing holds steady during the week.