Thanks for the terminology HM. I guess that explain why Dundee and anonymous step up whenever Jitney runs out.

Investopedia explains Fill Or Kill - FOK
This type of order is usually for a large quantity of stock, and must be filled in its entirety or canceled (killed). Examples include market and limit orders requiring immediate execution. In reality, the fill-or-kill type of trade does not occur very often.

PS

Traps I was preoccupied trying to figure out the trading pattern. I will now go back and check into the CALeuuuu.