Footprint charts

What a footprint chart is

A normal candle shows only open, high, low, and close. A footprint chart shows, inside each candle, how much traded at every price — and crucially, how much was aggressive buying versus aggressive selling at each level. Instead of one bar, you get a detailed map of the fight that happened within it: the volume, split by aggressor side, at each price the candle touched.

What it reveals

• Bid × ask volume per price. At each price inside the candle, how much hit the bid (aggressive sells) and how much lifted the offer (aggressive buys). The imbalance shows who was in control at that price.
• Delta per candle. The net of aggressive buying minus aggressive selling for the whole bar — a single number for who won the candle.
• Absorption. Heavy aggressive volume at a price that price then rejects — a lot of selling into a low that holds, or buying into a high that fails. The footprint makes absorption visible as a cluster of one-sided aggression that did not achieve the move.
• Point of control. The price within the bar where the most volume traded — often a magnet and a reference.

From footprint to signal

The footprint is where several Part 2 concepts become concrete. Absorption is a footprint read: one-sided aggression that fails to move price. Delta divergence — price making a new high while the candle's buy-delta shrinks — is visible bar by bar. The footprint does not replace the tape; it organizes it into a form you can read at a glance and reference after the fact, which is exactly what you need to build repeatable entries rather than reacting to a blur of prints.

Common mistakes

• Reading footprints away from levels. They are most meaningful at a price that matters — a wall, the flip, an overnight edge.
• Chasing delta without context. A big candle delta is only a signal in the right location and with the right follow-through.
• Overloading on detail. The footprint is rich; focus on absorption, delta, and the point of control, not every cell.

Reading imbalances inside the candle

The footprint's real analytical unit is not the total volume in a cell but the imbalance between the two sides at adjacent prices — how much aggressive buying occurred at one price versus aggressive selling just below it. Large, one-sided imbalances mark prices where one side was decisively in control.

Where those imbalances sit inside the candle is what matters. Stacked buy imbalances at the top of an up-candle mean buyers were still aggressive into the high — the move ended with commitment rather than exhaustion, and continuation is more likely. Buy imbalances that fade toward the high, or reverse into sell imbalances at the extreme, mean the aggression died exactly where it should have been strongest — that is the signature of a failing push.

Applied at a level from the map, this becomes precise. Price reaches the Call Wall and prints heavy buy imbalances right at the high which then fail to extend: buyers spent everything at the wall and got nowhere. That is a far more specific read than "it looks like it's stalling."

The point of control, and where value sits

Two more readings the footprint gives you for free.

The point of control is the price within the bar (or session) where the most volume traded — where the market spent the most effort agreeing. It acts as a reference and often a magnet: price that leaves it tends to be drawn back unless something has genuinely changed. Session-level points of control from previous days are among the more reliable non-options reference levels there are.

The distribution tells you whether trade was concentrated or spread out. A bar where volume clusters tightly at one price is a market that agreed on value; one where volume is spread evenly across the range is a market in transition, with no price commanding acceptance. The first tends to hold; the second tends to resolve.

Volume profile — the footprint's sibling

Closely related to the footprint, and worth knowing because it answers a different question, is the volume profile: a histogram of how much volume traded at each price over a session or period, regardless of time.

Where the footprint shows the fight inside individual bars, the volume profile shows where the market as a whole has spent its effort. Three features carry most of the value.

The point of control — the price with the most volume — acts as a centre of gravity and a common magnet on subsequent days.

The value area — the range containing the bulk of the volume — describes where the market agreed price was reasonable. Price returning into a prior value area often rotates within it; price rejecting it often moves away decisively.

Low-volume nodes — prices where very little traded — are the profile's equivalent of gamma voids. Price tends to move through them quickly, because nobody wanted to transact there before.

Read alongside the dealer map, these give you a second, entirely independent set of structural levels. When a prior point of control coincides with a gamma wall, you have two unrelated methods pointing at the same price.

How much of this do you actually need

An honest word, because order-flow tools can become a collection rather than a method.

You do not need every display. A trader who watches price, one order-flow measure (CVD is the best single choice), and a map of levels has enough to execute everything in Part 2. Adding footprint, book depth and volume profile deepens the read, but each addition costs attention, and attention is the binding constraint in live trading.

The sensible progression is to master one tool at a time against the levels you already trust. Learn what CVD looks like at a wall that holds and at one that breaks. Then add the footprint and learn the same two situations again with more detail. Adding four displays at once produces a trader who sees everything and concludes nothing.

The map narrows where to look. One good flow tool tells you what is happening there. Everything else is refinement.

Delta divergence, bar by bar

The footprint makes one of the most useful order-flow patterns visible at the individual bar level, and it is worth isolating.

Watch the candle delta — the net of aggressive buying minus selling within each bar — across a sequence of bars making new highs. In a healthy advance, each new high comes with a solid positive delta: buyers are aggressing and price is responding.

The warning appears when price makes a new high while the bar's delta shrinks, or turns negative. A green bar with negative delta is particularly informative: price closed higher despite aggressive sellers dominating, which means the advance happened on passive buying and thin supply rather than on demand. Those advances are structurally weak and frequently retrace.

This is the same divergence idea you know from CVD, observed at higher resolution. CVD shows the accumulated picture; the footprint shows which specific bar the character changed. Used together at a level, they are considerably stronger than either alone.

What the footprint cannot tell you

Because the footprint displays so much detail, it invites more confidence than it can support, and a few honest limits are worth stating.

The aggressor classification is an inference. Trades are assigned to the bid or ask side by rules that are approximately right and sometimes wrong — particularly for large orders that execute across multiple prices, or in fast markets where the quote moved between the order and the print.

It shows aggression, not intent. A large aggressive buy might be a new long, a short covering, or one leg of a spread whose other leg is trading elsewhere. The footprint records the mechanical fact and nothing about the motive.

It has no memory. A bar's delta describes that bar. Whether the participants involved are still committed a minute later is not visible.

None of this makes the tool less useful; it defines the claims it can support. "Aggressive selling was absorbed at this price" is well supported. "Institutions are accumulating here" is a story built on top of the data, and the gap between the two is where over-confident order-flow trading goes wrong.

• The footprint shows bid × ask volume at each price within a candle, plus delta and point of control.
• It makes absorption and delta divergence visible bar by bar.
• Most meaningful at a level from the map — a wall, the flip, an overnight edge.
• Structure (map) + confirmation (footprint) is the method in miniature.