What the profile shows
A volume profile distributes traded volume across price levels rather than across time. Where a candle tells you price moved from here to there, a profile tells you how much size was accepted or rejected at each level on the way.
On US index futures this is particularly useful because the overnight session frequently establishes the levels that the cash session reacts to.
The three features that matter
- FAIR PRICEPoint of control
- The price with the most traded volume. The level the market spent the most time accepting.
- BALANCEValue area
- The range that contains roughly 70 percent of the session volume. Where two-sided trade was most comfortable.
- REJECTIONLow-volume nodes
- Prices where very little traded. The market moved through these quickly, which is why they often act as magnets when revisited.
Shapes and what they mean
| Shape | What it suggests | Common misread |
|---|---|---|
| Bell curve (normal distribution) | Balanced auction, no strong conviction either way | Treated as a trend signal. It is the absence of one. |
| Thin, elongated | Strong directional move; price was rejected quickly at most levels | Assumed to continue. Exhaustion is equally possible. |
| Double distribution | Two separate areas of acceptance, connected by a low-volume move | Read as one wide balance area. The gap between matters. |
| Flat-top or flat-bottom | Price spent time at an extreme, suggesting acceptance there | Treated as resistance without checking whether size actually traded. |
Session choice changes the shape
A profile built on the full Globex session looks materially different from one on regular trading hours only. The overnight frequently contains the high-volume node, because index futures trade substantial volume before the US cash open.
Pick one convention
Whether you profile the full session or regular hours only, use the same setting for every comparison. Mixing the two produces shapes that cannot be reconciled and conclusions that fit neither.
What the profile does not tell you
- Which side initiated each trade. For that you need order flow, not volume alone.
- Whether the size was real interest or a single large participant working an order.
- What happens next. The profile describes where acceptance occurred, not where it will recur.
Volume profile is descriptive. It shows where the market found fair value in the past. It is genuinely useful for that and completely silent about direction.
Common mistakes
- Profiling across a contract rollThe volume spike at the roll is an artefact, not a high-interest level.
- Using the wrong sessionComparing a Globex profile against a cash-session profile without realising they cover different periods.
- Treating every low-volume node as supportMost low-volume areas are just prices the market passed through. Only ones near a session extreme carry structural meaning.
- Ignoring the data feedConsolidated and exchange-specific feeds can produce visibly different profiles on the same instrument, especially on thinner contracts.