At 9:31 someone placed a sell order at what appeared to be a market order for 4800 shares. And sure enough the pps went down to 4.37.
Going into the close yesterday, the bid was at 4.60 with the ask at 4.65. So, that party who sold this morning should have placed their sell order at the bid yesterday, instead they lost over $ 1000 in doing so.
I doubt seriously that this was someone who wanted to create a tentative downdraft to fool others into selling as that is usually done with a smaller share volume.
As I write / post the bid is now 4.58. Thus, this seller lost out on a lot.
It goes to show that on a stock as extremely thinly traded as CLRS, you got to use limit orders.