# Damiani Volatmeter

Damiani Volatmeter plots Luis Damiani's trade/no-trade filter: a volatility line from the ratio of 7- and 50-bar ATRs with a lag-suppression term, against a threshold of 1.1 minus the matching standard-deviation ratio. Readings above the threshold allow trend and breakout entries; readings below flag dead conditions. Includes a state dashboard and regime alerts.

- Indicator in the LuxAlgo Library, by LuxAlgo, published May 2, 2026.
- Access: free.
- Concepts: [Damiani Volatmeter](https://www.luxalgo.com/library/concept/damiani-volatmeter/) (primary)
- Open on Vela: https://vela.luxalgo.com/chart?pineScriptCodeId=jvlmwdebh1ed706hjr5uzh48
- Page: https://www.luxalgo.com/library/indicator/damiani-volatmeter/

**Damiani Volatmeter** is the first faithful build of the [Damiani Volatmeter](https://www.luxalgo.com/library/concept/damiani-volatmeter/) in the Library, reproducing the widely shared formulation input for input. The pane plots two lines: Volatility, the fast/slow ATR ratio with the recursive lag-suppression term k × (V[1] − V[3]) added, and Threshold, the constant c minus the fast/slow standard-deviation ratio. A gradient fill turns green while trading is allowed and red while it is not, and a compact dashboard states the current regime in plain text.

## How to Trade the Damiani Volatmeter?

- **Volatility above Threshold**: directional activity is sufficient. Breakout and trend entries from your actual system may be taken.
- **Volatility below Threshold**: conditions too quiet and erratic to trust a directional signal; stand aside.
- **Regime flips**: optional circle markers highlight each switch, and the Trade Allowed / No-Trade Zone alerts fire whether or not markers are shown.

The Volatmeter carries no directional opinion. Its double-ratio design exists to reject the churn that pure ATR filters mistake for opportunity: the standard-deviation term adapts the bar expanding range has to clear.

## Damiani Volatmeter Settings

- **Fast Length (Viscosity)** (default 7): fast window shared by the ATR and standard-deviation ratios.
- **Slow Length (Sedimentation)** (default 50): slow baseline window for both ratios.
- **Lag Suppressor (k)** (default 0.5): coefficient of the recursive term; 0 disables it, as some circulating versions do.
- **Threshold Constant (c)** (default 1.1): the constant the standard-deviation ratio is subtracted from.
- **StdDev Source** (default close): source series for the threshold's deviation ratio.
- Style: **Show State Dashboard** (default on), **Show Regime Change Markers** (default off), **Highlight No-Trade Zones** (default off), plus line and state colors.

## Frequently Asked Questions

### Damiani Volatmeter or Choppiness Index?

Both ask whether the market is worth trading directionally. The [Choppiness Index](https://www.luxalgo.com/library/indicator/choppiness-index/) compresses the answer into one bounded 0–100 reading you threshold yourself; the Volatmeter's hurdle adapts bar by bar and returns a binary allowed/blocked state.

### Why do my readings differ from another version?

Circulating ports disagree on the lag suppressor, the threshold constant, and the deviation source. This build exposes all three (k, c, and StdDev Source) so it can be matched to whichever variant you compare against.

### Can it generate entries by itself?

No, and it is not meant to. Run it as a permission gate beneath a breakout or trend-following method, standing that system down through compression. Its value lies in the trades it prevents, not the ones it finds.

## Related indicators

- [Volatility Contraction Pattern](https://www.luxalgo.com/library/indicator/volatility-contraction-pattern/) (Volatility): markdown at https://www.luxalgo.com/library/indicator/volatility-contraction-pattern.md
- [NR4 & NR7 with Breakouts](https://www.luxalgo.com/library/indicator/nr4-nr7-with-breakouts/) (NR4/NR7 Narrow-range Bars): markdown at https://www.luxalgo.com/library/indicator/nr4-nr7-with-breakouts.md
- [Master Pattern](https://www.luxalgo.com/library/indicator/master-pattern/) (Range Expansion/contraction): markdown at https://www.luxalgo.com/library/indicator/master-pattern.md
- [Waddah Attar Explosion](https://www.luxalgo.com/library/indicator/waddah-attar-explosion/) (Volatility): markdown at https://www.luxalgo.com/library/indicator/waddah-attar-explosion.md
- [Squeeze Index](https://www.luxalgo.com/library/indicator/squeeze-index/) (Range Expansion/contraction): markdown at https://www.luxalgo.com/library/indicator/squeeze-index.md
- [Choppiness Index](https://www.luxalgo.com/library/indicator/choppiness-index/) (Volatility): markdown at https://www.luxalgo.com/library/indicator/choppiness-index.md
- [Volatility Switch](https://www.luxalgo.com/library/indicator/volatility-switch/) (Volatility): markdown at https://www.luxalgo.com/library/indicator/volatility-switch.md
- [Gap-volatility Relation](https://www.luxalgo.com/library/indicator/gap-volatility-relation/) (Volatility): markdown at https://www.luxalgo.com/library/indicator/gap-volatility-relation.md

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Source: https://www.luxalgo.com/library/indicator/damiani-volatmeter/ (LuxAlgo Library). Free to use with attribution: https://www.luxalgo.com/library/license/