Contents
What a volume profile actually shows
A volume profile bins price and shows how much volume transacted at each price level over a chosen period and session. Volume traded at one price, not the price that moved. The distinction matters and it is where most confusion comes from.
This means the profile is a record of where business was done, not a prediction of where price will go. A high volume node is a price level where a lot of trading happened, which usually means a lot of people have positions there, which usually means a lot of people have a reason to act there again. It is a magnet and a level at once, not a support line.
Our guide to volume profile explained covers the mechanics, and market profile versus order flow sets out the difference between the two approaches.
Value area and point of control
The point of control is simply the price level with the most volume. The value area is the range containing 70 percent of the session's volume, typically taken as the point of control plus contiguous levels on either side until 70 percent is reached.
The standard interpretation is that price spends most of its time in the value area and the edges of the value area are where directional moves begin. That is a reasonable prior and it is a starting point, not a rule. A large directional day will simply walk out of the value area and keep going, and a low-volume day will rotate between the extremes.
The practical use of the value area is defining a trading range for the session. If the Asian session establishes a value area, and London trades out of it, you have a directional session. If London returns to the value area repeatedly, you have a balanced session and you should be looking for rotation rather than breakout continuation.
High volume nodes, low volume nodes and the vacuum
A high volume node is a level where volume concentrated. The interpretation is that many participants transacted there, so many have positions, so price tends to move quickly through it once accepted. High volume nodes are often used as support or resistance because of the reference value, but the directional implication is that they are accepted prices.
A low volume node is the opposite: little business was done there, so few participants have any reason to defend it. Price tends to move quickly through low volume areas. The low volume node is where you look for continuation, and it is often a better breakout target than the high volume node people default to.
The vacuum is the extreme case, a price level with almost no volume at all. When price moves into a vacuum, there is nothing to slow it down, and it typically continues until it reaches the next significant node. This is the mechanical basis of the 'price moves from one high volume node to the next' idea that is common in order flow communities.
Where the profile misleads you
The first misreading is treating the profile as complete. It is a summary of transactions, and summaries omit the size and the side. A high volume node where every trade was aggressively sold into a large passive bid is not a support level, it is a record of a battle that a big player won. The profile cannot show you that, order flow can. This is the central argument in the comparison.
The second misreading is choosing the wrong period. A daily profile when the session's range is a hundred dollars tells you little about the intraday structure. Profiles should match the decision you are making. A fifteen-minute profile for a scalp, a daily profile for a swing.
The third is ignoring the session boundary. Gold's profile is completely different in the Asian session and in the London-NY overlap, and blending them produces a distribution that describes no real trading period at all.
Using the profile with order flow
The productive combination is: use the profile to find the levels, and use the flow to decide which direction to trade them. A high volume node that price has just returned to, where the flow on the approach shows passive buying and no aggressive selling, is a candidate long. The same level with heavy aggressive selling into it is a candidate short or a level to stay away from.
A clean setup is price returning to the edge of the value area or to a significant high volume node, the flow showing absorption on the retest rather than continuation of the prior trend, and a stop placed beyond the level with the position size computed from that stop. We cover the confirmation step in order flow confirmation.
The most common application for a retail trader is the daily session range. The value area high and low from the Asian session become your reference levels for the London open, and the profile tells you where the balance of the day sits.