Standard volume sits under the chart as bars along the time axis, one per candle. It answers a question of limited use: was ten o'clock busier than eleven. A volume profile rotates that measurement ninety degrees. It buckets traded activity by price level instead of by time and draws the result as a horizontal histogram against the right or left edge of the chart.
What comes out is a shape, and the shape shows where the market spent its effort. Prices with long bars are where buyers and sellers found each other repeatedly. Prices with short bars are where the market passed through and did not stop.
How the histogram is built
Pick a range: one session, one week, the move from a swing low to a swing high, or the whole visible chart. The platform walks every bar in that range, distributes each bar's volume across the price levels it covered, and totals the result per level.
The distribution method is worth knowing because it changes the picture. Some tools assign a candle's entire volume to its close, which is fast and coarse. Others spread it evenly across the candle's range. The most accurate build uses tick data and places volume at the price it actually traded at. If your profiles look different between two platforms on the same chart, this is usually why.
Point of control and the value area
Three lines come out of every profile and they are the ones traders mark.
The point of control is the single price with the most traded volume in the range. It is the fairest price the market found over that period, in the narrow sense that more business was done there than anywhere else. Markets tend to return to it, which is why an untested point of control from a prior session is a reasonable place to expect a reaction.
The value area is the band around the point of control containing a set share of total volume, conventionally seventy percent. Its edges, the value area high and value area low, behave like soft boundaries: price inside the area is in balance, price outside it is in a state the market did not sustain last time. Acceptance back inside the area after a break is one of the more reliable readings in this method, and it fits neatly with how supply and demand zones are marked by hand.
High volume nodes and the gaps between them
A high volume node is a thick section of the histogram: a price shelf where a lot of trade occurred. Price approaching one from outside tends to slow down, because there is inventory there and both sides have positions to defend.
Low volume nodes are the opposite and, for my money, more useful. A thin section means price moved through that region quickly and few positions were established. When price returns to a low volume node, there is little to hold it, so moves through those pockets are often fast. Marking the thin areas between two shelves gives you a map of where a move is likely to travel quickly and where it is likely to stall, which is a different kind of information from a horizontal line drawn at a prior high.
A profile is a description of the past, not a forecast. A shelf that held three times can fail on the fourth, and leveraged trading carries a high risk of loss whatever the histogram shows.
Session profiles versus composites
Two ways to slice it. A session profile builds one histogram per trading day, which suits intraday work: yesterday's value area high and low become today's reference levels, and the opening relationship to that area sets the tone. This ties directly to session structure, since a profile that includes the quiet Asian hours has a different shape from one built on the London and New York overlap.
A composite profile spans a longer stretch, often a multi-week consolidation or an entire trend leg. Composites are for locating the big shelves, the prices a market has revisited for months. They change slowly and they are better as swing reference points than as intraday triggers.
The forex problem, and how to handle it
Volume profile came from futures pits, where volume means contracts traded on one exchange. Spot FX and CFDs have no central venue, so what your platform charts is tick volume, a count of price updates rather than a measure of size.
That matters less than it sounds for this technique. Tick counts and real activity correlate closely enough in liquid pairs that the shape of the profile, where the shelves and the gaps are, comes out broadly similar. What you lose is the absolute number, so you cannot compare one instrument's node to another's, and you should not read anything into a specific volume figure. Read the shape, ignore the units.
The other honest caveat is that this is a location tool, like support and resistance with more evidence behind each line. It does not generate entries. Traders who work well with profiles use them to decide which prices deserve attention, then take the trade on whatever trigger they already trust, with the stop placed beyond the shelf rather than an arbitrary distance away. Used that way it earns its space. Used as a system on its own it produces a chart covered in lines and no decision rule.
"I stopped drawing so many horizontal lines when I started using profiles. The market shows you which prices mattered, you just have to stop guessing."
— Alex Onta, Executive Director, SINGUARD
Key Takeaways
- A volume profile buckets activity by price rather than by time, producing a horizontal histogram of where trade occurred.
- The point of control is the highest volume price in the range, and the value area is the band holding roughly seventy percent of it.
- Thin low volume pockets are where price tends to travel fast, which makes them as useful as the thick shelves.
- In FX the histogram is built on tick volume, so read the shape of the profile and ignore the absolute numbers.
Frequently Asked Questions
What does the point of control mean in a volume profile?
It is the price level with the highest traded activity within the selected range, treated as the price at which the market did the most business over that period. Untested points of control from earlier sessions are commonly marked as levels where price may react on a return.
Does volume profile work on forex charts?
The shape works, the numbers do not. Spot FX has no central exchange, so platforms build profiles from tick volume, meaning counts of price updates. In liquid pairs that produces a similar distribution of shelves and gaps, while the absolute figures cannot be compared across instruments.
What is the difference between a session profile and a composite profile?
A session profile builds one histogram per trading day and is used for intraday reference levels such as the previous day's value area. A composite spans a longer period, often a whole consolidation or trend leg, and is used to locate the larger shelves that hold over weeks.
About the Author
Alex Onta is an Executive Director at SINGUARD. He built eTrader, the terminal, the mobile apps, eTrader Broker, Copytrading, Business and Community, along with the worldwide clustered-server infrastructure it all runs on, with his brother Roman Onta helping on the design, and he leads that division today. Together with Roman he builds the Prop Firm CRM, the Broker CRM, Scalegram and CopySignals, and the two of them carry worldwide compliance, payment processing and international business structuring side by side. He lives and works in Dubai for most of the year. Meet the executive duo leading Singuard's five divisions.