Richard Wyckoff distilled a century-old truth into one of his laws: volume is effort, and price movement is result. When the two are in harmony the move is genuine; when they diverge, something is being hidden. The per-bar delta histogram in the diagram is the modern, high-resolution way to measure effort, because delta captures aggressive effort directly. Learning to compare effort against result is one of the most durable skills in reading a market.
Wyckoff's law of effort and result
Effort versus result is the third of Wyckoff's laws, and it is disarmingly simple: treat volume (and its refinement, delta) as the effort the market is expending, and treat the resulting price change as the result that effort produced. The whole method is then a matter of comparing the two on every meaningful bar. When effort and result agree, the market is behaving honestly and you can trust the move. When effort is large but result is small, or result is large on little effort, the mismatch is a clue that supply and demand are not what the price alone suggests. This one comparison — how much did the market push, and how far did price actually go — organises everything that follows.
Harmony: when volume confirms the move
Harmony is the healthy, unremarkable case, and recognising it keeps you on the right side of a trend. A wide-range up bar on expanding volume shows large effort producing a large upward result — genuine demand overwhelming supply, a move to trust. A wide-range down bar on heavy volume in a decline shows supply firmly in control. In each case the size of the price move matches the size of the volume behind it, and the trend is confirmed as backed by real participation. This agreement is what you want to see when trading with a trend: effort and result rising together tell you the move has fuel and the path of least resistance is intact.
Divergence: effort without result
The prized signal is the anomaly where effort is high but result is missing. A bar with heavy volume but a narrow range that closes without progress is effort without result — enormous pushing that moved price almost nowhere. That can only mean a large opponent is on the other side absorbing the aggression: buyers pouring in while a big seller quietly caps price, or vice versa. This is absorption or churning, and because the aggressive side is spending itself against a hidden wall, it frequently marks a turning point. Wyckoff taught traders to prize exactly these bars, because effort that fails to produce a result reveals the presence of a stronger, patient participant that the price action alone conceals.
Ease of movement: result without effort
The opposite anomaly is just as informative: a large price result on surprisingly little effort. When price travels a wide range on modest volume, it means there is little opposition — the path is clear and price slides easily because no one is defending it. In the middle of a trend this ease of movement confirms the path of least resistance and supports continuation. But the same lightness at the end of an extended move can be a warning, signalling a vacuum of interest rather than genuine demand, where price drifts up simply because sellers have stepped aside rather than because buyers are strong. Reading result-without-effort therefore depends on context: healthy ease mid-trend, hollow drift at exhaustion.
Reading effort as delta
Delta sharpens effort versus result to its purest form, which is why the diagram shows a per-bar delta histogram under price. Raw volume measures total effort, but delta measures aggressive, directional effort — how hard buyers or sellers pushed through the spread. A bar with a huge green delta but only a tiny upward result, or a close back down, is the clearest possible effort-versus-result warning: aggressive buyers spent everything and price would not hold, so a larger passive seller absorbed them. Comparing each delta bar's size against the candle's actual progress turns the abstract law into a concrete, bar-by-bar read. When big delta produces small result, believe the result and suspect the aggressor is being trapped.
No Demand and No Supply
Volume Spread Analysis, which grew out of Wyckoff, gives effort versus result two named low-effort signals worth knowing. A No Demand bar is an up bar on notably low volume — price rises but with no effort behind it, revealing an absence of genuine buying that often precedes weakness. A No Supply bar is its mirror: a down bar on low volume, showing sellers have lost interest and hinting at underlying strength. An up-thrust is the high-effort cousin — a bar that pushes to a new high on strong volume but closes back down, effort to rise met by a rejected result that exposes supply. Each of these is simply effort versus result applied to a single bar, and together they give you a vocabulary for the market's small tells.
Putting effort vs result to work
In practice you never read effort or result alone; you always read them as a ratio and always inside a trend context. On each significant bar, ask how much effort the market spent — the volume, and better, the delta — and how much result it earned in price, then judge whether they are in harmony or diverging. Harmony with the trend is a signal to stay with the move; divergence against it, especially effort without result at an extreme, is a signal to expect a turn and seek confirmation. Combine it with structure — effort failing at a value-area edge or a prior high carries more weight than in mid-range. The law is old, but with delta as the effort gauge it remains one of the most reliable lenses on whether a move is real.