Delta Ladder

The Delta Ladder indicator visualizes volume delta data across price levels, providing traders with granular insights into the balance of buying and selling pressure within each bar. By splitting price bars into discrete rows, it reveals where high-volume transactions and Point of Control (PoC) levels occur.

Usage

The Usage section describes how the script can be used to interpret order flow dynamics through various visual representations.

Data Display Methods

• Classic: Orients volume delta boxes to the right of the price bar. Positive delta (buying pressure) is positioned further right, while negative delta (selling pressure) is closer to the bar, allowing for a clear visual separation of intent.
• On Bar: Superimposes delta blocks directly onto the price bar. Negative delta blocks are placed on the left side of the candle body, and positive delta blocks are placed on the right.
• Pure Ladder: Aligns all delta blocks along the same x-axis as the parent price bar, creating a traditional vertical order flow ladder.

Interpretation and Styling

The indicator uses color coordination to highlight volume intensity. Marginal volume differences are heavily shaded (more opaque), while large volume differences are lightly shaded to emphasize significant order flow imbalances.

Traders can also enable Box Merging to remove numerical values and create a color-based heatmap. This helps in identifying "price blocks" where significant buying or selling interest is concentrated without the distraction of specific digits.

Details

The script executes by requesting lower timeframe data (user-configurable) to calculate the volume delta for each price level. It divides the high-low range of a bar into a specified number of rows (up to 499) to provide high-precision mapping.

A key implementation detail is the Volume Assumption feature. When enabled, the script mitigates "one-sided" volume data (where only buy or only sell volume is reported at a level) by assuming a 60/40 split. This calculation aims to better replicate the Volume Delta and Open Interest calculations found on institutional-grade order flow platforms that handle tick data differently than standard charting tools.

Settings

General Settings

• Data Display Method: Selects between Classic, Pure Ladder, and On Bar layouts.
• Lower TF For Delta Calculation: Sets the timeframe used to fetch volume data (e.g., 1-minute or seconds).
• Divide Bars Into How Many Rows?: Determines the vertical granularity (4 to 499 rows).

Aesthetics

• Show Delta Values: Toggles the visibility of numerical delta values inside the boxes.
• Delta Total Above Bar: Displays the net volume delta for the entire candle.
• Merge Delta Boxes: Combines adjacent boxes of the same sentiment for a "canvas" effect.
• Hide Total Delta Labels: Removes the aggregate delta labels from the chart.
• Black Background / Text Size / Font Type: Adjusts the visual theme and readability of the ladder.

Volume Assumption

• Use Volume Assumption: When enabled, prevents 100% lopsided volume reporting by applying a 60/40 ratio to single-metric levels.

Colors

• Delta Up/Down Color: Defines colors for positive and negative volume delta.
• General POC Color: Sets the color for the price level with the highest volume (Point of Control).
• Candle Up/Down Color: Sets the colors for the underlying price bars.

FAQ

How do I adjust the precision of the price levels? You can increase the "Divide Bars Into How Many Rows?" setting in the Rows Per Bar group. A higher number creates thinner rows, offering more precise data points.

Why are some boxes shaded differently? The shading is based on volume magnitude; substantial differences in volume between buyers and sellers are shaded differently than minor differences to help you quickly identify areas of high conviction.

How can I access the Delta Ladder? You can get access on the LuxAlgo Library for charting platforms like TradingView, MetaTrader (MT4/MT5), and NinjaTrader for free.