Accumulation/Distribution (Accum/Dist) - Built-in Indicator Guide

Accumulates per-bar money flow volume into a cumulative Accumulation/Distribution line plotted in olive.

Overview

Accum/Dist measures cumulative buying and selling pressure by adding a per-bar money flow volume value to a running total. It is meant for observing whether volume is building up or draining away over time alongside price action.

The indicator draws one olive-colored line. Because the value is cumulative, the line slope shows whether the recent money flow volume contributions are positive or negative; the absolute level depends on the full historical series.

How it works

1. Mfv.new() creates the per-bar money flow volume series.
2. CumSum.new(Mfv.new()) passes that series into a cumulative-sum algorithm.
3. On each bar the cumulative sum includes every Mfv value from the start of the series to the current bar.
4. The [0] index reads the current bar’s total from the CumSum series.
5. Main returns that scalar, and the @plot.line decorator draws it as an olive line in volume format.

Mathematical model

Logic flow

flowchart TD
  A["Each new bar"] --> B["Create per-bar money flow volume value"]
  B --> C["Add value to running cumulative sum"]
  C --> D["Return current bar value"]
  D --> E["Plot olive line"]

Code walkthrough

Indicator and plot decorators

Lines 6-7 of Accumulation-Distribution.indie5:

@indicator('Accum/Dist', format=format.VOLUME)  # Accumulation/Distribution
@plot.line(color=color.OLIVE)

The @indicator decorator gives the script its chart name and tells the platform to format values as volume. The @plot.line decorator sets the visual output to a single continuous olive line. Together they define how the finished indicator appears.

Main function and algorithm chain

Lines 8-9 of Accumulation-Distribution.indie5:

def Main(self):
    return CumSum.new(Mfv.new())[0]

Inside Main, Mfv.new() creates a series of per-bar money flow volume values. CumSum.new() wraps that series and produces the cumulative total. The pipeline is intentionally short and contains no extra logic beyond the two nested algorithm calls.

Reading the current value

Lines 9-9 of Accumulation-Distribution.indie5:

    return CumSum.new(Mfv.new())[0]

The [0] subscript selects the current bar’s value from the series returned by CumSum. In Indie, series values are accessed by bar offset, with [0] for the current bar. Because Main returns a scalar, the plot updates once per bar.

Reading the chart

• The olive line is the cumulative sum of Mfv values; it is not a price line.
• A line moving up means the cumulative money flow volume is increasing, so recent per-bar Mfv values are positive.
• A line moving down means the cumulative total is decreasing, so recent per-bar Mfv values are negative.
• Since no reset is coded, the level includes all bars from the beginning of the series; compare slope and relative changes rather than raw absolute levels.

Implementation notes

• The entire computation is inside Main, so there are no user-configurable inputs in this script.
• CumSum.new() is stateful: it keeps the running total internally, and [0] reads only the current bar’s value from it.
• The plot is declared once with @plot.line; the line does not change color or style based on direction.
• Mfv.new() runs on the chart’s current timeframe; the source does not reference other timeframes.

FAQ

What is the plotted value?

It is the current value of the cumulative sum of Mfv values. The format.VOLUME annotation makes the chart display it as a volume figure.

How can I access the previous bar’s Accum/Dist value?

Change the return expression to CumSum.new(Mfv.new())[1]. In Indie, [1] is the previous bar’s value in a series.

Can I add settings to this indicator?

The original script defines no @param decorators, so no settings appear in the UI. Adding inputs would require extending the script with additional @param decorators and changing the Main signature.

Full source code

Indie Script v5, the built-in indicator as shipped with TakeProfit. Add it from the indicators menu or copy the code into the platform’s script editor.

# indie:lang_version = 5
from indie import indicator, format, plot, color
from indie.algorithms import CumSum, Mfv


@indicator('Accum/Dist', format=format.VOLUME)  # Accumulation/Distribution
@plot.line(color=color.OLIVE)
def Main(self):
    return CumSum.new(Mfv.new())[0]