OB always has permission to measure volume, no matter the lock-in path taken or the speed at which it formed.
An OB as the 3rd bar of a lateral without UL is not measurable.
OB always has permission to measure volume, no matter the lock-in path taken or the speed at which it formed.
Clearly @Sprout, you've done more "study" on the subject of JH methodology than I.
I am not knowledgeable enough (or smart enough) to dispel or corroborate your work.
What I do know is how short term trading, as measured in single-digit minutes, works. LTCM blew up not because Black-Scholes was "bad" or "wrong", but rather because the math geniuses did not understand trading and how world finance was intertwined. Similar circumstance surrounds many well known blowups... not faulty analysis(necessarily), but rather how that analysis was absorbed, dispersed, and acted upon within the marketplace.
So as to the OB question... what determines the two levels of an OB, the sequence in which the OB has appeared, or the volume of the OB itself? For me, for now, the answer is the sequence in which the OB has appeared. I choose to remain a trader. I am not smart enough to be anything else.