# Gann HiLo Activator

Gann HiLo Activator is an indicator on [Vela](https://vela.luxalgo.com/chart), our next-generation charting platform, written in Pine Script®.

Robert Krausz's stepped trailing line built clean: a 3-period average of highs and another of lows, with the close deciding which side plots. The averaged lows trail under price as support while the state is up, the averaged highs cap price as resistance while it is down. Flip markers, a gradient trail fill, and alerts for flips and held pullback tests complete a trend tool driven by one length and an average type.

- Indicator in the LuxAlgo Library, by LuxAlgo, published Jun 23, 2026.
- Access: free.
- Concepts: [Gann HiLo Activator](https://www.luxalgo.com/library/concept/gann-hilo-activator/) (primary)
- Open on Vela: https://vela.luxalgo.com/chart?pineScriptCodeId=de8e1wxo3coqn9saxxczdz2w
- Page: https://www.luxalgo.com/library/indicator/gann-hilo-activator/

**Gann HiLo Activator** trails price with a stepped line that swaps sides only on a close through it: while the state is up the line is a short average of the lows under price; when a close breaks it, the state flips and the average of the highs takes over above. This is the definitive clean build of the [Gann HiLo Activator](https://www.luxalgo.com/library/concept/gann-hilo-activator/): Krausz's construction, comparing each close against the previous bar's averages, with only visual and alert plumbing added. Because only closes flip the state, intrabar pokes leave it unchanged; this build turns those pokes into signals of their own.

## How to Trade the Gann HiLo Activator?

- **Bullish flip**: a close above the high-side average. The line jumps beneath price and trend-followers treat it as the entry or re-entry cue; bearish flips mirror it.
- **Trailing stop reference**: the active line is a natural stop rail. Up-state positions exit on the close that flips the state rather than on a wick touch.
- **Pullback tests that held**: an intrabar poke through the line that closes back on the trend side (alertable both ways) marks an absorbed test, often a lower-risk continuation entry than the flip itself.

## Gann HiLo Activator Settings

- **Length** (default 3): lookback of both averages, the classic default from Krausz's construction. Longer flips less often and trails looser; shorter hugs price and whipsaws in ranges.
- **Average Type** (default SMA): the classic simple average, or the EMA / VWMA substitutions from later variants.
- **Flip Markers** (default enabled): a dot on the new side of price at each state flip.
- **Gradient Trail Fill** (default enabled): shades the span between price and the line, the room a close has left before the state would flip.
- Bullish/bearish colors and **Line Width** (default 1) are cosmetic.

## Frequently Asked Questions

### Gann HiLo Activator or Supertrend?

[Supertrend](https://www.luxalgo.com/library/indicator/supertrend/) trails at an explicit ATR multiple, so its distance from price is a volatility setting; the HiLo Activator keys off smoothed highs and lows, so the trail adapts to recent bar range with a single lookback. It flips faster on tight tapes, while Supertrend gives moves more room.

### Why do only closes flip the state?

Closes are compared with the prior bar's averages (the line the trader was watching while the bar formed is the line that decides) and intrabar noise cannot flip the state. That filter is much of the tool's edge over a stop resting exactly at the line.

### What is its main weakness?

Ranges. A 3-period trail flips repeatedly in sideways tape and bleeds small losses; lengthening the lookback or standing aside when flips cluster are the standard defenses. In trends the same tightness is what keeps positions in.

## Related indicators

- [SuperTrend AI (Clustering)](https://www.luxalgo.com/library/indicator/supertrend-ai-clustering/) (Supertrend): markdown at https://www.luxalgo.com/library/indicator/supertrend-ai-clustering.md
- [KNN Supertrend Horizon](https://www.luxalgo.com/library/indicator/knn-supertrend-horizon/) (Supertrend): markdown at https://www.luxalgo.com/library/indicator/knn-supertrend-horizon.md
- [Supertrend Parameter Sensitivity 3D](https://www.luxalgo.com/library/indicator/supertrend-parameter-sensitivity-3d/) (Supertrend): markdown at https://www.luxalgo.com/library/indicator/supertrend-parameter-sensitivity-3d.md
- [SuperTrend Recovery](https://www.luxalgo.com/library/indicator/supertrend-recovery/) (Supertrend): markdown at https://www.luxalgo.com/library/indicator/supertrend-recovery.md
- [Evasive SuperTrend](https://www.luxalgo.com/library/indicator/evasive-supertrend/) (Supertrend): markdown at https://www.luxalgo.com/library/indicator/evasive-supertrend.md
- [Trend Magic](https://www.luxalgo.com/library/indicator/trend-magic/) (Trend): markdown at https://www.luxalgo.com/library/indicator/trend-magic.md
- [SuperIchi](https://www.luxalgo.com/library/indicator/superichi/) (Supertrend): markdown at https://www.luxalgo.com/library/indicator/superichi.md
- [SuperTrend](https://www.luxalgo.com/library/indicator/supertrend/) (Trend): markdown at https://www.luxalgo.com/library/indicator/supertrend.md

---

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