Price Tells You Where. Volume Tells You How Much.
A normal candlestick chart shows where price traded over time. A volume profile turns that picture sideways: it shows how much volume traded at each price, regardless of when. The result is a horizontal histogram next to your chart, and its shape reveals where the market spent most of its effort and where it barely stopped.
The Point of Control
The point of control, usually shortened to POC, is the single price level with the highest traded volume in the period you are measuring. It is where the most business was done, which makes it the market's best estimate of an accepted price during that period.
Traders watch the POC because price tends to behave differently around it. When price returns to a prior POC, participants who traded there before may act again: some add, some exit at breakeven, some fade the move. That makes it a reference level, a place where something is likely to happen, not a prediction of what will happen.
The Value Area
The value area is the range of prices that contains a set share of the period's volume, conventionally about 70 percent. Its upper edge is the value area high (VAH) and its lower edge is the value area low (VAL). The idea mirrors a bell curve: most trading happens near the middle, with thinner volume at the extremes.
- Price inside the value area: the market is accepting current prices. Rotational, range-like behavior is common.
- Price accepted above VAH or below VAL: the market is searching for a new area of value. Directional moves are more likely, but acceptance, meaning time and volume spent there, matters more than a single touch.
- Price poking out and snapping back: a rejection of that area, often a sign the move did not attract enough participation.
High-Volume and Low-Volume Nodes
Beyond the POC, the profile has peaks and valleys. High-volume nodes are prices where the market lingered; they tend to slow price down. Low-volume nodes are prices where little traded; price often moves through them quickly because there was little agreement there. Marking both before the session gives you a map of where price may pause and where it may travel fast.
Which Period Should You Use?
The most common approach is to carry forward the prior session's POC, VAH and VAL as levels for today. Many traders also keep the weekly profile for a wider frame. Start with the prior session only. More profiles means more lines on your chart, and a chart with fifteen levels stops being a map.
Common Mistakes
- Treating a level as a guaranteed reversal point. It is a place to pay attention, not a trade by itself.
- Ignoring context. A POC means more when it lines up with other information, such as options positioning or the overnight range.
- Changing the profile settings every day. Pick a definition and stay consistent so your review of past trades means something.
Putting It Into a Routine
Volume profile levels work best as one layer of a pre-session routine, next to options positioning and macro context. DepthLevel publishes daily levels for SPX and Gold so you can compare your own volume profile read against the options-based picture before the open. For a step-by-step version of the routine, see our guide to the five-minute pre-session volume profile check.
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