The market profile is constructed on Basis of "TIME" which is vital for intraday player and also for 2 to 4 days swing traders ,but for positional trader it is not much of use as "TIME" limitation is not a major factor to them.
Just studying price and getting exposed to over night risk basing only on that is not a good idea so we study volume why ?? to locate areas of big volume players so that exposer risk can be reduced
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What is volume profile-----------------------------------------------------------------------------
A Volume Profile is similar to a Market Profile in as much as they both show a profile (a bell curve) against the Y-axis of the chart to represent the most traded area(s) of the time period that they have been constructed against.
The major difference, a significant one, is that a Volume Profile is constructed using the volume traded at each price while Market Profile is constructed based on time brackets traded that the market traded at each price called TPOs.
Volume Point of Control
The most traded price (the one with most volume) is defined as VPOC, or Volume Point of Control.And High volume node and Low volume node are more important in this