Volume profile: POC, value area and volume-by-price
Updated 2026-07-05
A volume profile is a histogram of how much volume traded at each price over a chosen window — a volume-by-price view rather than the usual volume-by-time. Its landmarks are the Point of Control (the price with the most volume), the Value Area (the roughly 70% band of volume around it), and naked POCs (untested prior high-volume prices that tend to act as magnets).
What a volume profile is
Most charts show volume as bars under the price — volume per time bar, one column per candle. A volume profile rotates that idea ninety degrees: instead of volume per unit of time, it plots volume per unit of price. The result is a horizontal histogram running up the side of the chart, with a bar at every price level.
Over a chosen window — a single session, a full day, a week, or a custom range you draw yourself — the profile sums every unit of traded volume at the price it printed. Prices where a lot of business changed hands grow long bars; prices the market only passed through briefly stay short.
Reading it is a matter of shape. Fat bars mark acceptance — prices the market agreed on and traded around heavily. Thin bars mark rejection — prices the market moved through quickly, leaving a low-volume node behind. The profile turns a session's entire trade history into a map of where value was built and where it was skipped.
Point of Control and Value Area (VAH/VAL)
The single longest bar — the price row with the most traded volume — is the Point of Control, or POC. It is the window's fairest price: the level where buyers and sellers agreed most and did the most business. Traders treat the POC as the centre of gravity of the whole window.
Around the POC sits the Value Area: the contiguous band of prices that together hold about 70% of the window's volume. Its upper edge is the VAH (Value Area High) and its lower edge is the VAL (Value Area Low). Roughly seven of every ten contracts traded inside that band.
Price inside the value area is balance — the market is rotating around an agreed fair price. A clean break out of the value area, above the VAH or below the VAL, is the market rejecting that balance, and it is often where a trend begins. The VAH and VAL therefore act as the practical edges traders watch for continuation or reversal.
Naked POCs and untested levels
A naked POC — also called a virgin POC — is a prior session's Point of Control that price has not traded back to since it formed. Because it marks a price the market once agreed was fair on heavy volume, it tends to act as a magnet: unfinished business that price is drawn back to retest, where it often becomes support or resistance.
The same logic scales to the whole profile through nodes. A high-volume node (HVN) is a cluster of long bars — a shelf of heavy trading that attracts price and tends to hold it, slowing moves down as the market rotates. A low-volume node (LVN) is a gap of short bars — a price zone the market skipped, which tends to be traversed quickly and often acts as a clean break or a sharp support/resistance edge.
Together, naked POCs, HVNs and LVNs give a structural read: HVNs are where price sticks, LVNs are where it accelerates, and naked POCs are untested magnets waiting overhead or below. Traders map these levels forward to anticipate where a move is likely to stall or run.
Volume profile vs footprint
A volume profile and a footprint chart are cousins — both are volume-by-price rather than volume-by-time — but they work at different scopes. A footprint lives inside a single candle and splits that candle's volume into aggressive buys versus aggressive sells at each price. A volume profile aggregates across a whole window and usually does not split by side at all.
That difference sets what each one answers. A footprint tells you who was aggressive inside one bar — where buyers lifted offers or sellers hit bids, and where absorption happened. A volume profile tells you where volume built up over a session or a day, regardless of who was aggressive: it is a map of accepted price, not of intrabar flow.
In practice they are complementary. Reach for a footprint when you need intrabar order flow — the fine-grained buy/sell tug-of-war inside the current candle. Reach for a volume profile when you need structural levels — the POC, value area and nodes that frame where the whole session found value.
Related
Frequently asked questions
What is the Point of Control (POC)?
The Point of Control is the price with the most traded volume over the profile's window — the single longest bar in the histogram. It is the window's fairest, most-accepted price: the level where buyers and sellers did the most business, and traders treat it as the centre of gravity that price tends to rotate around.
What is the value area (VAH/VAL)?
The value area is the contiguous band of prices around the Point of Control that together hold about 70% of the window's traded volume. Its high edge is the VAH (Value Area High) and its low edge is the VAL (Value Area Low). Price inside the value area is balance; a break above the VAH or below the VAL is the market leaving that agreed range.
What is a naked POC?
A naked POC — also called a virgin POC — is a prior session's Point of Control that price has not traded back to since it formed. Because it marks a heavy-volume agreement price, it tends to act as a magnet, and when price finally revisits it, it often becomes support or resistance.
What is the difference between volume profile and a footprint chart?
A volume profile is volume-by-price aggregated over a whole window — a session, day or week — and usually does not split volume by side; it shows where volume built up. A footprint is per-candle and splits that candle's volume into aggressive buys versus aggressive sells. Use a volume profile for structural levels and a footprint for intrabar order flow.