A standard candlestick chart tells you what price did over time. Open, high, low, close. It's the basic vocabulary of trading and most traders never go beyond it.

What it doesn't tell you is where the market actually transacted. A 10-minute candle that moves from $100 to $105 might have traded a million contracts at $103 (the candle's middle) and only a hundred contracts each at the wick extremes. Or it might have traded 800,000 at $104.80 and almost nothing at the rest. Both look identical on a candlestick chart. They are completely different from a market-structure perspective.

Volume profile is the chart that fixes this. Drawn from Jim Dalton's Mind Over Markets and Markets in Profile — the foundational texts on market auction analysis — it's one of the highest-information overlays a trader can use, and most retail traders ignore it.

What volume profile actually shows

Volume profile is a horizontal histogram showing how much trading volume happened at each price level over a chosen window. The window can be anything: today's session, this week, the last 30 days, an entire trend phase. The shape of the histogram tells you where the auction concentrated.

Three values matter:

Point of Control (POC). The price level with the highest volume — the peak of the histogram. This is the price the market most agreed upon during the window. By definition, more transactions happened here than at any other price. The POC acts as a magnet: when price is far from POC, it tends to revert; when price is at POC, it tends to consolidate.

Value Area High (VAH) and Value Area Low (VAL). The price boundaries containing roughly 70% of the volume during the window, centered around the POC. The Value Area is the structural range where the market considered "fair value" during the period.

These three values give you a structural read on the chart that price action alone can't provide.

Why volume profile matters

Standard support/resistance lines are usually drawn at price extremes — recent swing highs, recent swing lows, round numbers. These work, but they're approximations. Volume profile gives you the actual statistical truth: the prices where the most transactions occurred are the structural anchors of the chart, regardless of where the price extremes happened to land.

The practical implication: Volume Profile levels are more reliable than visual swing-high/swing-low levels because they're rooted in actual transaction volume, not just price.

A breakout from a Value Area that retests successfully is a higher-probability continuation than a breakout from an arbitrary horizontal line drawn at a swing high. The math is on your side because the Value Area level was where actual trading happened.

Profile shapes and what they mean

The shape of the volume distribution carries information about what happened during the session. Three primary shapes recur:

D-shape (normal/balanced). Volume concentrated in the middle of the range, with edges thinner. A symmetric bell curve. Reads as a healthy two-sided auction with no strong directional conclusion. Both sides traded comfortably; neither dominated. Most balance-day sessions produce D-shapes.

P-shape. Volume concentrated at the top of the range, thin at the bottom. The auction tested lower prices, the test failed, and most trading clustered near the highs. Reads as accumulation or strong buying pressure. After a P-shape session, the natural expectation is a pullback to the Value Area Low (a "reaccumulation pullback") followed by potential continuation higher.

B-shape (or b-shape). The mirror of P-shape. Volume concentrated at the bottom of the range, thin at the top. Reads as distribution or strong selling pressure. After a B-shape session, expect a test back to Value Area High and potentially continued downside.

Reading these shapes lets you anticipate the next session's likely behavior. A P-shape on Tuesday tells you something about how to approach Wednesday's open. A trader who looks at yesterday's volume profile and says "the auction settled at $105, the value area was $103-$106, today's open at $107 is above value, expect a fade or a push to a new value area" is doing something more than chart-pattern reading.

The POC as a magnet

One of the most useful behavioral observations: price tends to return to the prior session's POC at some point during the next session. The POC is, in a sense, the "fair value" the auction settled on, and the next session's market typically retests that level even if the broader trend is moving away from it.

This produces a recurring trade structure:

  • After the open, observe whether current price is significantly above or below yesterday's POC
  • If significantly above, the bias is either "return to POC" (mean reversion) or "establish new value area" (trend continuation)
  • Watch for the test of yesterday's POC during the session — it usually arrives
  • Trade the reaction to the POC test (does price hold above? bounce off? slice through?)

This isn't a strategy in itself; it's a structural read that overlays on whatever your strategy is. The information is there whether or not you act on it.

Value Area as boundary

The Value Area High and Value Area Low function as soft support and resistance. When price is inside the Value Area, the market is considered "in balance" with prior trading. When price moves outside the Value Area, the market is testing new territory — either to discover a new range or to revert.

The pattern that recurs:

  • Price extends outside the prior Value Area
  • Fails to find new acceptance (no sustained volume at the new prices)
  • Reverts back into the Value Area
  • Often trades back to the POC

This is the structural basis for a meaningful number of reversal trades. The trader who uses Value Area boundaries instead of arbitrary swing levels has more reliable entries and tighter, more meaningful stops.

The opposite pattern — price extends, finds new acceptance, and the new prices become a new Value Area — is the structural basis for trend continuation. Both outcomes are visible in real time by watching whether volume builds at the new prices or fades.

How volume profile interacts with order flow

For traders who can't access institutional order-flow data, volume profile is the next-best window into auction dynamics. It shows you the result of order flow over a window — where transactions accumulated.

A useful framework: order flow tells you what's happening now; volume profile tells you what happened recently. Together they triangulate the auction state. Volume profile gives you the structural levels; order flow tells you whether those levels are currently being defended or breached.

For most retail traders, the order-flow feed isn't available. Volume profile alone is enough to elevate the chart-reading game significantly.

Common mistakes

Treating all volume profiles the same. A single-session profile is different from a 30-day profile. Each carries different information and is appropriate for different timeframes. Match the profile window to the trade horizon.

Ignoring the POC entirely. Most retail traders draw horizontal lines at swing highs and lows. The POC, hidden inside the candle bodies, is more reliable than either. Adding it to your chart costs nothing and adds substantial information.

Trading every Value Area test as a reversal. Value Area boundaries hold most of the time but not always. The trade is the test plus the reaction — fading the boundary because it's a boundary, without waiting for the rejection signal, produces too many losses.

Conflating volume with conviction. High volume during a move suggests participants are committing capital, but it doesn't tell you which direction has the long-term advantage. A high-volume rally can still be distribution if institutions are using the volume to unload.

How to apply this

Three principles cover the practical work:

  • Add volume profile to every chart. Most modern charting software supports it. Even a simple session-volume overlay adds substantial structural information.
  • Mark POC and Value Area boundaries from the prior session. These are your structural levels for today's trading. They beat arbitrarily-drawn horizontal lines.
  • Read the shape, not just the levels. P-shape vs B-shape vs D-shape tells you what kind of session yesterday was, which informs what kind of session today is likely to be.

Practicing this without losing money

Reading volume profile is pattern recognition trained over many session reps. Reading about the framework once builds vocabulary; recognizing P-shape vs B-shape on a live chart in two seconds requires repetition.

Inside Abu Terminal, the Speed-Run scenarios incorporate volume context where data is available, and the glossary explicitly defines POC, Value Area, P-shape, and related concepts so the vocabulary is at hand. Pattern training in Arena builds the visual recognition over hundreds of reps.

Conclusion

Most retail traders read price. Professional traders read price plus volume profile. The difference is the difference between knowing where price went and knowing where the market actually transacted.

Volume profile is not a magic indicator that will make you profitable. It is a structural overlay that makes every other read on the chart more accurate. Used consistently, it elevates the quality of every entry, every stop placement, every target.

The information was always there. Volume profile just makes it visible.

Abu Terminal is an educational platform. Nothing in this article is financial advice. See the Disclaimer for the full statement.

Read next:{' '} Order Flow: Reading What's Actually Driving Price {' · '} Auction Market Theory in Plain English