Pivot Numbers based upon...


I see some floor and camarilla pivot numbers posted daily that are based upon just the day session and then some based upon both day and previous evening session combined.
This means that some consider 16:30pm the actual open and some consider 09:30am when the bell rings to be the open...

Feedback?

Also, is the total volume number posted here including overnight session activity or just day session...

And what is the reasoning behind it all.

Thanks