Based on Anna Coulling, A Complete Guide to Volume Price Analysis (2012)
Anna Coulling is a trader and educator who has spent decades studying the relationship between volume and price. Her work draws heavily on the foundational insights of Richard Wyckoff (1873-1934), one of the early titans of technical analysis, as well as the subsequent contributions of Tom Williams and his Volume Spread Analysis (VSA) methodology.
A Complete Guide to Volume Price Analysis (2012) is built on a deceptively simple premise: volume is the only leading indicator in the market. Price tells you what happened; volume tells you why. Volume reveals the activity of the market's dominant participants — the institutional investors, market makers, and specialists who have the capital to move markets — and by reading volume correctly, a trader can align themselves with these dominant forces rather than opposing them.
The book's philosophy rejects the complexity of most technical analysis in favor of a stripped-down approach: two variables (volume and price), their relationship, and the context in which that relationship occurs. No oscillators, no moving average crossovers, no Fibonacci — just volume and price, bar by bar.
Volume provides information that price alone cannot:
| Price Alone Tells You | Volume + Price Tells You |
|---|---|
| The market went up | The market went up on strong participation — the move is genuine |
| The market went up | The market went up on weak volume — the move is suspect |
| The market went down | The market went down on panic selling — exhaustion is near |
| The market went down | The market went down on light volume — just a normal pullback |
| Support was tested | Support was tested on low volume — demand overwhelmed supply, support holds |
| Resistance was breached | Resistance was breached on high volume — genuine breakout |
Coulling's entire framework rests on one axiom: volume validates price. Every price movement must be confirmed by corresponding volume for it to be trusted. A price move without volume confirmation is a deception — a trap set by insiders to lure retail traders into the wrong side of the market.
Coulling builds on Wyckoff's three fundamental laws of the market:
Law 1: The Law of Supply and Demand. Price moves up when demand exceeds supply and down when supply exceeds demand. Volume reveals which force is dominant. High volume on an up move means demand is strong. High volume on a down move means supply is overwhelming.
Law 2: The Law of Cause and Effect. Every significant price move (effect) requires a period of preparation (cause). Accumulation is the cause; the subsequent markup is the effect. Distribution is the cause; the subsequent markdown is the effect. The magnitude of the cause (duration and volume of accumulation or distribution) determines the magnitude of the effect (the extent of the subsequent trend).
Law 3: The Law of Effort vs. Result. The effort (volume) should produce a proportionate result (price movement). When effort and result are in harmony, the move is genuine. When they diverge — high effort with little result, or significant result with little effort — something is wrong, and a reversal or pause is likely.
Wyckoff identified a four-phase cycle that repeats across all markets and timeframes:
The key insight: accumulation and distribution are invisible to price-only analysis because price moves sideways during both phases. Only volume reveals whether the smart money is buying or selling within the range.
Coulling identifies four fundamental volume-price relationships:
1. Rising price + Rising volume = BULLISH CONFIRMATION Demand is increasing as price rises. Buyers are willing to pay more and are doing so in increasing numbers. The uptrend is genuine and likely to continue.
2. Rising price + Declining volume = BEARISH WARNING Price is rising, but fewer participants are buying. The uptrend is losing momentum. Sellers will soon overwhelm the weakening demand. This is one of the most reliable reversal warnings in all of technical analysis.
3. Falling price + Rising volume = TWO INTERPRETATIONS
4. Falling price + Declining volume = BULLISH SIGNAL (POTENTIAL) Selling pressure is diminishing. Supply is drying up. This is characteristic of a pullback within an uptrend, not a new downtrend. If the pullback occurs at support, it is a strong buy signal.
| High Volume | Average Volume | Low Volume | |
|---|---|---|---|
| Wide Range Up | Strong bullish confirmation | Normal buying | Suspect — possible gap or news |
| Narrow Range Up | Potential resistance — effort not producing result | Normal consolidation | Drift, no commitment |
| Wide Range Down | Strong bearish confirmation OR capitulation | Normal selling | Suspect — possible gap or news |
| Narrow Range Down | Potential support — sellers failing despite effort | Normal consolidation | Drift, no commitment |
The effort vs. result principle is the most powerful concept in VPA. It states that the volume (effort) expended should produce a proportionate price movement (result). When this relationship breaks down, it reveals hidden activity.
High Effort, Small Result (Churning):
Low Effort, Large Result:
Each bar tells a story when read through the effort vs. result lens:
Accumulation is the process by which informed investors build positions before a major advance. It must be done quietly — if the buying were obvious, other participants would front-run the orders, driving prices up prematurely.
Preliminary Support (PS). After an extended decline, the first signs of significant demand appear. Volume increases on a down bar that fails to make new lows. Price stabilizes temporarily.
Selling Climax (SC). A sharp decline on very high volume that represents the final wave of panicked selling. Smart money absorbs this supply. Price typically drops sharply and then recovers quickly (long lower wick).
Automatic Rally (AR). Price bounces on reduced selling pressure. This establishes the upper boundary of the trading range. Volume is moderate.
Secondary Test (ST). Price returns toward the selling climax low to test whether supply has truly been exhausted. Volume should be LOWER than on the selling climax. If it is, demand is in control.
Spring (optional). Price briefly penetrates below the trading range low, triggering stop losses and shaking out weak holders. Volume should be LOW — if it is, the spring is a bullish trap, and smart money is buying the forced selling.
Sign of Strength (SOS). Price rises through the middle of the trading range on increasing volume. This is the first clear evidence that demand has overcome supply.
Last Point of Support (LPS). The final pullback before the markup phase begins. Volume should be low, confirming that supply has been absorbed.
Distribution is the mirror image of accumulation — informed investors liquidate positions before a major decline. Like accumulation, it must be executed gradually to avoid alerting the market.
Preliminary Supply (PSY). After an extended advance, the first signs of significant selling appear. Volume increases on an up bar that fails to make new highs. Price stalls temporarily.
Buying Climax (BC). A sharp advance on very high volume that represents the final wave of euphoric buying. Smart money sells into this demand. Price typically spikes and then retreats quickly (long upper wick).
Automatic Reaction (AR). Price drops as buying enthusiasm fades. This establishes the lower boundary of the trading range. Volume is moderate.
Secondary Test (ST). Price returns toward the buying climax high to test whether demand has truly been exhausted. Volume should be LOWER than on the buying climax. If it is, supply is in control.
Upthrust (optional). Price briefly penetrates above the trading range high, triggering breakout buying. Volume should be LOW — if it is, the upthrust is a bearish trap, and smart money is selling into the breakout enthusiasm.
Sign of Weakness (SOW). Price drops through the middle of the trading range on increasing volume. This is the first clear evidence that supply has overcome demand.
Last Point of Supply (LPSY). The final rally before the markdown phase begins. Volume should be low, confirming that demand has been exhausted.
Climax volume is extraordinarily high volume — typically 2-3 times or more the recent average — that signals the exhaustion of the dominant force. Climax volume occurs at turning points because it represents the final, desperate action of the losing side.
A selling climax occurs when:
The interpretation: the final wave of panicked sellers has been absorbed by informed buyers. Supply is now exhausted. A bottom is forming.
A buying climax occurs when:
The interpretation: the final wave of euphoric buyers has been met by informed sellers. Demand is now exhausted. A top is forming.
A single climax bar is necessary but not sufficient for a reversal. Confirmation comes from:
After climax volume, the market must test whether the dominant force has truly been exhausted. Tests are the confirmation mechanism for accumulation and distribution:
Successful test of support:
Failed test of support:
Successful test of resistance:
Failed test of resistance:
Multiple tests build progressively stronger evidence:
A spring is a temporary penetration below support on low volume, followed by a rapid recovery. It is a deliberately engineered shakeout:
An upthrust is the mirror image — a temporary penetration above resistance on low volume, followed by a rapid decline:
Springs and upthrusts are among the highest-probability VPA setups:
The risk/reward is favorable because the stop is tight (just beyond the spring or upthrust extreme) while the target is wide (the full range or more).
Support and resistance levels are not created equal. Volume determines their significance:
The same logic applies to resistance — high-volume resistance is genuine; low- volume resistance is weak.
When price breaks through a support or resistance level, volume determines whether the breakout is genuine:
Genuine breakout:
False breakout:
The behavior of volume as price approaches a key level reveals intentions:
While VPA focuses on volume and price range, candlestick formations add nuance through the relationship between open and close, and the presence of wicks:
Bullish VPA + Bullish Candle = High Confidence:
Bearish VPA + Bullish Candle = Confusion:
Hammer + High Volume at Support:
Shooting Star + High Volume at Resistance:
Doji + High Volume:
Engulfing Pattern + Volume Confirmation:
For each bar, Coulling recommends reading in this order:
Coulling emphasizes that VPA signals gain reliability when confirmed across multiple timeframes:
| Timeframe | Role | Volume Significance |
|---|---|---|
| Monthly | Long-term trend and cycle identification | Major accumulation/distribution |
| Weekly | Intermediate trend and swing direction | Significant reversals and trends |
| Daily | Trading bias and setup identification | Most common VPA analysis timeframe |
| Hourly/4-Hour | Entry and exit timing | Intraday refinement |
| 15-Min/5-Min | Precision entry for active traders | Noise increases; use sparingly |
When timeframes conflict, the higher timeframe wins:
Ignoring context. A high-volume bar means different things at different locations. High volume at support is bullish; high volume after an extended rally may be distribution. Always read volume in context.
Using absolute volume instead of relative. What matters is not whether volume is "high" in absolute terms, but whether it is high relative to recent average volume. A stock that typically trades 1 million shares per day showing 3 million is significant. A stock that typically trades 50 million showing 3 million is a quiet day.
Expecting instant results. Accumulation and distribution take time — weeks, months, sometimes years. A single VPA signal is a clue, not a trigger.
Confusing climax volume with continuation volume. Extremely high volume after an extended move usually signals exhaustion, not continuation. But many traders see high volume and assume the trend is accelerating.
Ignoring the close. The close relative to the bar's range is critical. A high-volume wide-range bar that closes near its low is bearish, not bullish, even though it may have been up for most of the session.
Trading without context. Attempting to trade VPA signals in isolation, without considering the broader market structure, trend, and timeframe.
Ignoring the trend. VPA is most powerful when used to confirm or deny the existing trend. Counter-trend VPA signals require much stronger confirmation.
Over-analyzing. Reading meaning into every bar. Most bars are noise. Focus on the bars with genuinely anomalous volume — the ones that stand out clearly.
Using volume in illiquid markets. VPA is most reliable in liquid markets where volume genuinely reflects participation. In thinly traded stocks, volume can be distorted by a single large order.
Not tracking volume patterns over time. A single bar is a data point. A pattern of bars — declining volume on pullbacks, increasing volume on advances — tells a story. Always zoom out.
"Volume is the fuel that drives the market. Without volume, a price move is nothing more than a move on air — unsupported and vulnerable to reversal."
"Price is simply a reflection of the balance of supply and demand at that moment in time. Volume tells you the strength of that balance."
"The market is like an iceberg. The price is the part above the water that everyone can see. The volume is the mass below the surface that actually determines where the iceberg goes."
"Every bar tells a story. The volume is the plot. The price range is the action. The close is the conclusion. Your job is to read the story correctly."
"When volume and price are in agreement, the move is genuine. When they diverge, something is happening beneath the surface — and that something usually means the smart money is positioning itself in the opposite direction from the crowd."
"A spring is the market's way of shaking the tree to dislodge the weak holders. The smart money needs their shares, and a brief drop below support is the fastest way to get them."
"Accumulation is invisible to the untrained eye because price goes nowhere. But volume tells the story — the systematic, patient transfer of stock from weak hands to strong hands."
"The close of the bar is the most important piece of information. It tells you who won the battle — the buyers or the sellers. A high close means the buyers won. A low close means the sellers won. A close in the middle means the battle is unresolved."
"Never trade a breakout without volume confirmation. A breakout on low volume is a trap. A breakout on high volume is an invitation."
"The simplest and most powerful question in all of technical analysis is: is the volume confirming the price action, or is it anomalous? If it confirms, go with the flow. If it is anomalous, stop and pay attention — the market is telling you something important."
This specification distills Anna Coulling's volume-price analysis framework, rooted in the Wyckoff tradition. The core principle is that volume is the only leading indicator — it reveals the intentions and actions of the market's dominant participants before those intentions are reflected in price. By reading volume in the context of price range, close position, and market structure, a trader can distinguish genuine moves from traps, identify accumulation and distribution before breakouts occur, and align their positions with the forces that actually move markets.