low in sp is weird, page-35

Following from Moneytree's post. It doesn't follow at all that these are bots with privileged info coming to them from the rig.
Sometimes they may be trying to suppress a share price, so they can buy more. Other times they may be automated selling from a large stockholder. They may need to sell shares quickly and will sell into an increased buy price, because that brings more money than the buy on offer moments before.

Maybe sometimes they are as clueless as most investors but are assisted in their cluelessness by superior technology.