What it does
Splits each bar's traded volume into an up-volume and a down-volume component, typically classifying trades or ticks by whether they occurred on rising or falling prices, and plots the two against each other. It reveals whether volume is flowing in on the buy side or the sell side of the tape rather than just showing total activity. The difference or ratio of the two components is a simple pressure gauge for the bar.
How to add it
Click Indicators (ƒx) in the header.
Search “Up/Down Volume” and click the result.
Hover its legend row and click the gear to open settings.
How traders use it
- Bars where up volume clearly dominates confirm buying pressure behind an advance; dominant down volume confirms selling pressure.
- A price breakout accompanied by heavy up volume is more trustworthy than one on balanced or down-skewed volume.
- Watch for divergence: price making new lows while down volume shrinks relative to up volume hints at seller exhaustion.
- Use the up/down volume ratio at key support and resistance levels to judge which side is likely to win the fight.
Inputs
| Input | Type | Default | Range / Options |
|---|---|---|---|
| Use custom timeframe | boolean | Off | — |
| Timeframe | resolution | 1 | — |
Plots & styling
| Plot | Style | Default color |
|---|---|---|
| Up Volume | columns | #26a69a |
| Down Volume | columns | #ef5350 |
| Delta | line | #26a69a |
Every plot's color, line width and visibility can be changed on the Style tab. Precision (default 0 decimals), price-scale labels and status-line values are configurable at the bottom of the Style tab.
Tips
- Hide the study from the legend eye instead of removing it when you only want it out of the way temporarily.
- Merge multiple oscillators into one pane from the legend ⋯ menu to compare them on a shared axis.
- Double-click the plot to open settings directly, skipping the legend hover.
- A custom timeframe input lets it compute on a higher interval than the chart.
Watch out for
- The up/down classification is an approximation of true buyer and seller initiative and can misattribute volume, especially on illiquid symbols.
- Heavy one-sided volume shows participation, not future direction; climactic volume often marks the end of a move rather than its continuation.