Volume profile explained: POC, value area and LVN in plain English

On most charts, volume is a row of bars along the bottom: how much traded in each minute or hour. Turn that idea on its side and you get something more useful. Instead of asking how much traded at each time, ask how much traded at each price. That sideways histogram is the volume profile, and it answers a question a normal chart cannot: where did the market actually do its business?

Three terms fall out of it, thrown around as if everyone already knows them: POC, value area, and low volume node. Here is what each means in plain English, how price tends to behave around them, and, just as important, what the tool cannot tell you.

Volume by price, not by time

A volume profile takes a chosen period, a session, a day, a week, and stacks all the volume that traded at each price level into horizontal bars. Fat bars are prices where a lot changed hands; thin bars are prices the market passed through quickly. The vertical axis is price; the length of each bar is how much volume happened there.

That reframing matters because time-based volume tells you when people were active, while price-based volume tells you where they agreed to transact. Markets are a two-way auction, always searching for a price at which both buyers and sellers will do business. The volume profile is a picture of where that search settled and where it did not.

The point of control (POC)

The point of control is the price with the most volume in the period: the single fattest bar. It is where the most business got done, a rough proxy for the "fairest" price of the session, the one both sides kept coming back to.

Because so much trading clustered there, the POC often acts as a reference the market gravitates toward. When price drifts away and returns, that is not magic; it is a lot of participants having unfinished business at a price they already agreed on once. Traders watch it as a magnet and a pivot, but it is a tendency, not a rule.

The value area (VAH and VAL)

The value area is the price range that contains roughly 70% of the period's volume, centered on the POC. Its upper edge is the value area high (VAH) and its lower edge is the value area low (VAL). Think of it as the zone where the market spent most of its time agreeing on price. The 70% figure is a convention borrowed from one standard deviation, not a law of nature, but it is a consistent way to draw the boundary of "value."

Where price opens relative to that range is one of the most-watched pieces of context in auction trading. An open inside yesterday's value area suggests balance, a market that still agrees with prior prices. An open outside it suggests something changed overnight, and the question becomes whether price gets accepted at the new level or rejected back toward old value.

High and low volume nodes

Between the POC and the edges, the profile is rarely smooth. It has fat clusters and thin gaps, and those have names.

How price reacts: acceptance and rejection

Put the pieces together and a vocabulary of behavior emerges. Around HVNs and the POC, expect acceptance: price moves slowly, chops, and often returns, because those prices have willing buyers and sellers stacked up. Through LVNs, expect rejection: price travels fast, because there is little resting interest to absorb it, so a move that leaves value can accelerate once it clears the thin zone.

The value area edges give you reference points for framing that behavior. A market that pokes above the VAH and gets sold straight back inside is rejecting higher prices; one that holds above it may be building acceptance at a new level. This is the language of auction theory, and it describes context, not signals. The difference between reading the auction and reading a lagging indicator is the subject of order flow versus indicators.

The profile does not tell you what price will do. It tells you where the market has been comfortable and where it has not, and lets you frame the next move against that.

The auction behind the 9:30 window

The system takes one trade a day at 9:30 AM ET, when the US cash market opens and the day's volume arrives. In profile terms, that is the moment the overnight balance meets the day's real participation. Price often has to decide quickly whether to accept a level it drifted to overnight or reject it and travel to find value elsewhere, the kind of fast move that happens when price clears a thin, low-volume zone. Understanding acceptance and rejection is a good way to build intuition for why that window moves, which is laid out in the piece on the 9:30 AM ET window. The system acts on rules, not on a chart you read by eye, and those rules are in how it works.

What volume profile cannot do

Now the honest part, because this is a tool that gets oversold. A volume profile is entirely backward-looking. It shows where volume was, with perfect clarity and zero predictive power. A fat bar does not mean price will return; it means price traded there a lot, and the return, if it comes, is a tendency built on the people who traded there, not a property of the level itself.

Levels drawn from the profile are references, not triggers, and price ignores them constantly. The profile changes as the day builds, so a level that looked important at 10 AM can be irrelevant by noon. And like any tool it can be curve-fit: it is easy to look at a finished chart and point to the LVN that "predicted" the move, which is hindsight, not edge. Treat it as context that sharpens your reading of an auction, wire it into a rule-based approach the way a proper trading algorithm uses inputs, and never as a crystal ball. The mechanics of placing and managing futures trades, whatever you read to enter them, are covered in the how to trade futures guide.

Frequently asked questions

What is the point of control in a volume profile?

The point of control, or POC, is the single price level where the most volume traded during the chosen period. It represents the price the market kept returning to, so it is often read as the fairest or most-accepted price of the session. Traders watch it as a magnet that price tends to gravitate toward, but it describes past behavior rather than predicting future direction.

What is the difference between an HVN and an LVN?

A high volume node (HVN) is a price level where a lot of volume traded, signaling acceptance, so price tends to move through it slowly and often finds support or resistance there. A low volume node (LVN) is a thin zone where little traded, signaling rejection, so price tends to move through it quickly. LVNs frequently act as the boundary between two separate areas of value.

Can volume profile predict price?

No, and any source that says otherwise is overselling it. A volume profile is entirely backward-looking: it maps where volume has already traded, which gives you context for how price might behave around those levels, but it assigns no probability to future direction. The tendencies it reveals, magnetism toward the POC, fast moves through low volume nodes, are behavioral patterns that fail regularly. It is a lens for reading an auction, not a forecasting engine.

Educational content, not investment advice. Trading futures involves substantial risk of loss and is not suitable for every investor. Any reference to Algomyth results is hypothetical, simulated over historical data, and shown in full on the performance page; past performance does not guarantee future results.