TWI Education Series
Volume Profiles
Every session is an auction. This guide teaches you to read it: where the market finds value, where it rejects price, and how to turn that structure into trade decisions.
Part of the TWI education library, built from the same material our traders use in the live room every session.
Introduction
Price Tells You What. Volume Tells You Where It Matters.
Most traders stare at candles. Candles show what price did, but they hide the most important variable in the market: how much business was done at each price. A volume profile puts that information on the chart, plotting traded volume horizontally against price instead of vertically against time.
Read correctly, a volume profile shows you where the market agreed on value, which prices it rejected, and where the unfinished business sits. Those areas become the support, resistance, and target levels that actually have participation behind them, not just lines drawn on a chart.
By the end of this guide you will be able to read the auction, classify the type of session you are trading, and use value areas, the point of control, and profile shapes the way our team does in the TWI live room.
Part 1: Foundations
Market Auction Theory
The market has one job: facilitate trade between buyers and sellers. Like any auction, it constantly moves price to find the level where the most business gets done. Supply and demand push it toward efficiency, which keeps the market in balance most of the time, until news, events, or aggressive participants knock it out of balance.
The auction searches for value using three variables. Everything in this guide builds on them.
Price
The advertising mechanism. Price is an offer broadcast to all participants: accept it and trade happens, reject it and price must move on.
Time
The regulator. It controls how long an opportunity exists. Prices that favor one side heavily do not last long, the market moves away from them quickly.
Volume
The measuring stick. Volume records how much business each price attracted. Heavy volume means acceptance and interest. Light volume means rejection.
The formula to remember: price + time = value. When price spends time at a level and volume confirms it, the market has found value. A volume profile is simply a picture of that process.
Part 1: Foundations
Balance & Imbalance
Balance
In a balanced market, buyers and sellers agree on price and are happy to transact at it. Volatility compresses, price ranges instead of trends, and the profile builds a symmetrical bell shape around fair value.
Balance is the market's natural state. It persists until new information, a fundamental or technical driver, forces participants to re-price.
Imbalance
In an imbalanced market, one side turns aggressive and price trends in search of new value. The profile stretches thin and elongated because price does not sit anywhere long enough to build acceptance.
Imbalanced moves usually travel until they reach a previous value area, where old business gives the market a reason to slow down and rebalance.
As a rule of thumb, markets trend only about 20% of the time and range the other 80%. Knowing which state you are in is worth more than any single setup, because it decides whether you should fade moves or join them.
Part 1: Foundations
The Five Auction Market Rules
Acceptance into balance targets the far side
When price accepts back inside a balance area, it tends to rotate to the opposite extreme. Watch for a retest of the entry edge before the traverse begins.
Inside balance, expect chop and edge rejection
Price inside a balance area is two-sided and choppy. The edges tend to reject, so the middle of balance is the lowest-conviction place to initiate trades.
A strong POC reaction can cut a rotation short
The POC sits in the middle of the balance. If price reacts hard off it, the expected traverse from Rule 1 can fail. Respect the reaction, not the forecast.
Acceptance outside balance starts a search for new value
Once price accepts outside a balance area, the market is imbalanced and seeks new value. A common destination is the POC of an older balance area.
Volume building at an edge fuels the break
If time and volume accumulate at the edge of a balance area instead of rejecting it, the market is loading for a push through that edge.
Part 2: The Tool
What Is a Volume Profile?
A volume profile is a technical analysis tool that displays traded volume at each price level over a chosen period, drawn horizontally on the y-axis instead of the traditional volume bars along the bottom of the chart.
Longer bars mean more contracts changed hands at that price: acceptance. Shorter bars mean the market spent little time and did little business there: rejection. It is built directly on auction theory and on the observation that markets have short-term memory and tend to repeat past behavior around the same levels.
Volume Profile vs. Market Profile
Volume Profile
Shows the volume of trades that occurred at each price level. Measures actual participation.
Market Profile
Shows the amount of time price spent at each level, built from TPO letters. Measures duration, not size.
They often look similar, but they answer different questions. This guide focuses on volume, because volume is the direct footprint of participation.
Part 2: The Tool
Why the Bell Curve Matters
One of the fundamental laws of statistics: as the number of repetitions of a random event grows, the distribution of outcomes becomes more symmetrical, forming a bell curve. Flip a coin ten times and the results can be lopsided. Flip it ten thousand times and heads and tails converge toward center.
A market in balance behaves the same way. Thousands of transactions cluster around the price both sides consider fair, and the profile prints a bell curve rotated onto its side.
This is why the value area is defined at 68.2%: the volume within one standard deviation of the mean. About 95% of volume sits within two standard deviations, and most platforms round the value area setting to 70%.
Part 2: The Tool
Anatomy of a Volume Profile
The price level with the highest traded volume in the profile. The most accepted price between buyers and sellers, and the strongest magnet in the distribution.
The highest price traded during the profile period. Marks the upper boundary of the auction.
The lowest price traded during the profile period. Marks the lower boundary of the auction.
The range containing roughly 68-70% of total volume. Its boundaries, the Value Area High and Value Area Low, are significant reference levels on their own.
Clusters of heavy volume where the market found fair value. Price tends to slow down and get absorbed when it returns to an HVN.
Thin areas the market rejected, sometimes called skinny belly or empty space. Price tends to travel through LVNs quickly.
Part 2: The Tool
The Value Area
The value area spans from the Value Area High (VAH) to the Value Area Low (VAL) and holds roughly 68.2% of the period's volume. It is the area of acceptance: the prices where the market did the most business.
The VAH and VAL behave as support and resistance because real inventory changed hands there. The width of the value area is a read on participation: a wide value area means high participation from all timeframes, while a narrow one signals low activity and a market waiting on information.
The Open vs. Value: Three Core Signals
Open above, fall back inside
Price opens above the value area but gets rejected back inside it. Higher prices found no acceptance: a strong bearish signal.
Open below, rally back inside
Price opens below the value area but rallies back inside it. Lower prices were rejected: a strong bullish signal.
Open outside and hold
Price opens beyond value and stays there. Larger players are repricing the market. Expect follow-through in that direction, not mean reversion.
Part 2: The Tool
The Point of Control
The POC is the price with the highest traded volume in the profile: the most accepted price by both buyers and sellers. It anchors the distribution, and old POCs keep acting as magnets and reaction levels long after the session that created them.
Price above POC
Buyers control the session. Long setups trade with the session's flow, and the POC below acts as first support.
Price below POC
Sellers control the session. Short setups trade with the flow, and the POC above acts as first resistance.
Worth engraving: the POC is always a High Volume Node, but not every High Volume Node is a POC. A profile has many HVNs. It has exactly one POC.
Part 2: The Tool
Three Ways to Draw It
Fixed Range
SurgicalYou select the exact bars or region to profile: a single rally, a consolidation, one earnings gap. Ideal for auditing a specific move to find where its volume actually sits.
Visible Range
Big pictureProfiles whatever your chart currently displays. Zoom out and it maps the dominant volume shelves for the entire visible history, ideal for locating major HVN and LVN zones.
Session Volume
TWI preferredOne profile per trading day. This is the auction record of the last 24 hours: the levels it prints, the prior day POC, VAH, and VAL, are the backbone of the next day’s trade plan.
Part 3: Reading the Day
The Six Market States
The first hour of trade establishes the initial balance (IB). How price behaves relative to that early range classifies the session, and each session type rewards a different playbook.
Trend Day
One-way traffic. The market opens near one extreme and grinds toward the other all session, with shallow pullbacks that never threaten the trend.
Double Distribution Day
A narrow initial balance leads to aggressive initiative activity that pushes price into a completely separate second distribution, where value rebuilds.
Typical Day
A wide range is established quickly in the first hour, creating a wide initial balance. The market then trades inside that range for the rest of the session.
Expanded Typical Day
A moderate initial balance eventually breaks as one side overwhelms the other, extending the range meaningfully beyond the early boundaries.
Trading Range Day
A wide initial balance like a typical day, but instead of settling, buyers and sellers actively push price back and forth between both extremes.
Sideways Day
A narrow initial balance that never resolves. Nobody initiates, trade facilitation is poor, and price stagnates. Common ahead of major data releases and holidays.
Part 3: Reading the Day
The Four Profile Shapes
By the close, every session's profile resolves into a recognizable letter. The shape is a condensed report of who won the auction and where the unfinished business is.
D-Shaped Profile
Balance. Neither side has an advantage.
Volume builds symmetrically around a central POC, printing a bell curve on its side. The market is facilitating two-sided trade and is comfortable at current prices. Expect rotation rather than trend while the shape holds.
P-Shaped Profile
Strong buyers, weak sellers.
An aggressive rally leaves a thin tail at the lows, then volume builds in a tight rotation near the highs. Often seen in short covering rallies and at the start of uptrends.
b-Shaped Profile
Aggressive sellers, weak buyers.
The mirror image of the P. An aggressive sell-off leaves a thin tail at the highs, then volume builds near the lows. Common in downtrends and at the end of uptrends as longs liquidate.
B-Shaped Profile
Two value areas. Consolidation inside a trend.
Effectively two stacked D-profiles: high volume nodes at two distinct levels with an LVN between them. Frequently marks consolidation before the prevailing trend continues.
Part 4: Application
The TWI Playbook
A Pre-Market Routine You Can Steal
Pull the prior session profile. Mark its POC, VAH, and VAL before the open.
Note where the overnight and pre-market price sits relative to yesterday’s value area.
At the open, classify the day: opening inside value favors rotation, opening outside value favors continuation or a rejection play.
Let the first hour print the initial balance, then match the session against the six market states.
Trade the references: fade back to POC in balance, follow acceptance through LVNs in imbalance.
At the close, log the profile shape (D, P, b, B). It sets your bias for tomorrow.
Quick Reference
Highest volume price. Session control line and magnet.
Value area boundaries. Acceptance above or below shifts value.
Heavy volume shelf. Price slows and gets absorbed here.
Rejected prices. Price travels through these fast.
Initial balance, the first hour range. Sets the day template.
Open outside value that holds tends to follow through.
Part 5: Lock It In
Test Your Knowledge
Question 1 / 8
What does the Point of Control (POC) represent in a volume profile?
Keep Going
Trade This Framework Live, With Us
Volume profiles are one pillar of how the TWI team trades every session. Join the community for live streams, daily levels, alerts, and the rest of the education library.
Disclaimer
This guide is provided for informational and educational purposes only and does not constitute investment advice. Nothing on this page is a solicitation or recommendation to buy or sell any security or financial instrument. Trading involves substantial risk of loss. Past performance does not guarantee future results, and market conditions and views can change without notice. Always do your own research and consult a licensed financial professional before making investment decisions.
Trade With Insight
Read the auction. Trade the levels.