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VolumePine Script v6Built-in Variable

ta.iiiIntraday Intensity Index

Intraday Intensity Index. Measures the relationship between the close price and the high-low range, weighted by volume.

TradingView language reference

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Syntax

Syntax
ta.iii

Returns

series float

Code Examples

Pine Script v6 Example
//@version=6
indicator("Intraday Intensity Index")
plot(ta.iii, color=color.yellow)

// the same on pine
f_iii() =>
    ((2 * close - high - low) / (high - low)) * volume

plot(f_iii())

Trading Applications

Measure intraday buying/selling pressure

Identify accumulation and distribution patterns

Confirm breakouts with volume intensity

Use as a component in custom volume indicators

Related Functions

ta.obvta.accdist

Frequently Asked Questions

ta.iii is the Intraday Intensity Index series, relating where the close falls within the bar to volume, using the close relative to the bar midpoint, rather than the change from the prior close.

The reference formula is ((2 × close - high - low) / (high - low)) × volume. Volume multiplies the close-location ratio; it is not in the denominator. A zero bar range or missing volume needs an explicit policy in custom calculations.

Use III with price action: sustained positive values on rallies or negative on declines can confirm direction; divergences vs price may warn of fading pressure.

Generate ta.iii Code with AI

Draft Pine Script using ta.iii with Pineify's AI Coding Agent, then review the arguments and test the result on your chart. Usage depends on your plan and available credits.

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