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Volume profile: where the market agreed with the price
Ordinary volume answers 'how much was traded in this hour'. A profile answers a different question — 'how much was traded at this price' — and shows which levels the market treats as fair and which it flies through.
Volume bars under a chart break trading down by TIME: here is an hour, here is how much traded in it. A profile breaks the same trading down by PRICE: here is a level, here is how much passed through it over the chosen period. It is the same set of trades turned ninety degrees, and it answers a question the time-based view simply does not contain: where did price linger and where did it race through.
The three values a profile is built for
- Point of control — the price with the largest volume over the period. Trading was densest here.
- Value area — the range containing a given share of all volume (usually about seventy percent). This is 'where the market agreed with the price'.
- Low-volume nodes — levels with little volume. Price moved through them quickly in the past because few wanted to trade there.
Bitcoin, one day
Measured from our 24-hour profile: point of control 71,800, value area from 70,400 to 73,800, volume-weighted average price 72,656, bucket step 200 dollars. Price at the moment of measurement was around 75,200 — ABOVE the entire value area. One way to read it: the market has left the range it considered fair yesterday and is trading where there was almost no agreement. This is not a 'sell signal' — it is a description of position: below price lies an area of heavy trading, and such areas tend to attract.
'The point of control is support'
The most common and most wrong simplification. The point of control promises no bounce. It states exactly one thing: the largest volume of the chosen period passed here. What happens when price returns depends on new order flow, not old. The difference between 'a lot was traded here' and 'people will buy here' is the difference between a fact about the past and a guess about the future.
The period decides everything
A one-day profile and a one-month profile are two different instruments sharing a name. The daily one answers 'where was yesterday's trading', the monthly one 'where has the market lived this month'. Their levels will differ, and arguing about which is correct is pointless: the question is what horizon you are deciding on. Our profile is built over a chosen number of hours, and changing it changes the question rather than the accuracy of the answer.
We store the profile not as a single number per level but split into aggressive buys and sells. That lets you ask not only 'how much traded at this level' but 'who was the initiator there'. A level with large volume and a buy share near one half is honest two-way trade; the same volume at a share of 0.8 means people came to take, and somebody gave it all to them.
Low-volume nodes and why price races through them
If almost nothing traded at a level, there were neither buyers nor sellers there in any meaningful size. When price returns to such an area it has nothing to overcome — few orders stand there and it passes quickly. The practical consequence: placing a target or a stop inside a low-volume node is a poor idea, because price does not linger there. They belong at the edges, where volume begins.
Volume profile with point of control, value area and volume-weighted average price — in the 'Trades and volumes' block on a coin page.
View the profileCompare two periods
Build the profile of one coin over a day and over a week. Write down both points of control and both value areas. Find a price that falls inside the value area on one period and inside a low-volume node on the other — and explain to yourself why that is not a contradiction.
Price has held above the weekly value area for three days while volumes fall. What does that say?
That the market has left its usual range and is trading where there was little agreement — and increasingly reluctantly. Falling volume means few new participants at these prices. The state is unstable: either new volume accumulates here and the value area moves up, or price returns to the old one. Which of the two, the profile does not answer; it describes a position, not an outcome.