What is Trendline Liquidity?
Everyone can see the same trendline, so many traders put their stops just beyond it. That makes the far side of a respected line a pool of resting orders rather than a wall. Trendline Liquidity marks the moment price reaches through the line to take those stops and then closes back on the other side.
It fits the same lines as Auto Trendlines, with the same default settings. A sweep of a support line gets an up arrow, a sweep of a resistance line a down arrow, and the swept line is drawn across its own span.
This is a closed-source premium script. It runs on Altrady's servers, so only its output reaches your chart and its code is not published.
How to use Trendline Liquidity
- Support sweep. A wick below a rising support line that closes back above it. The sellers who were stopped out are now on the wrong side, which is read as bullish.
- Resistance sweep. A wick above a resistance line that closes back below it, read as bearish.
- The line survives. A sweep does not end the line. Only a close through it does, so every marked sweep is of a line that is still valid.
- Grab or failed break. Both look the same on the bar. What price does next decides which it was, and that is the trader's call.
Settings
Swings
| Setting | Default | Range | What it changes |
|---|---|---|---|
| Timeframe | Chart | Chart, 15m, 30m, 1h, 4h, 1D | Fit the lines on a higher timeframe while trading a lower one. The chart's own period must divide it exactly. |
| Swing Length | 5 | 1 or more | Bars either side of a pivot. Shared with Auto Trendlines, so the lines are the same ones that tool draws. |
| Significance (ATR x) | 1 | 0 to 10 | A swing is ignored unless the leg into it covered this much ATR. |
Fit
| Setting | Default | Range | What it changes |
|---|---|---|---|
| Lookback Swings | 10 | 2 to 30 | How many recent swings of each side the pairing reaches back over. Matches Auto Trendlines so the two agree. |
| Min Touches | 3 | 2 to 10 | How many pivots must agree before a line exists to be swept. The two anchors count by construction. |
| Touch Within (ATR x) | 0.3 | 0.01 to 5 | How close a pivot must come to count as touching the line, in ATR. |
Display
| Setting | Default | Range | What it changes |
|---|---|---|---|
| Max Events | 20 | 1 to 200 | The oldest marker is removed past this. |
| Show Marker | On | The arrow at the wick's extreme, pointing the way the grab sets up: a sweep of support is bullish. | |
| Show Line | On | The trendline that was swept, drawn across its own span. With this off the tool marks the events only and Auto Trendlines can draw the lines instead. | |
| Line Style | Dashed | Solid, Dashed, Dotted | |
| Show State Pane | Off | A sub-pane counting sweeps, giving the level swept, and pulsing on each one. It is signed, so a support sweep is +1. The tool's internal state, and what the automated checks read. |
Colours
| Setting | Default | Range | What it changes |
|---|---|---|---|
| Support Sweep | #089981 | A line fitted through lows, reached through and reclaimed: bullish. | |
| Resistance Sweep | #f23645 | A line fitted through highs, poked above and rejected. |
Alerts: trendline_sweep.
How it works
The script fits trendlines through recent confirmed swing highs and lows, choosing the line that the most pivots touch within a tolerance measured in average true ranges. A line needs Min Touches, three by default, before it can be swept.
A sweep is judged against the line's sloped value at the bar being tested, not its price when it was fitted. A bar whose low goes below a support line and whose close is back above it is a support sweep, and the mirror for resistance.
The trendline_sweep alert fires on the sweep bar, with a message saying which side was swept. Max Events keeps the last 20 markers on the chart.
Limitations
- Swing lag. The lines use confirmed swings, so a new line appears Swing Length bars after its newest pivot.
- No measure of size. How many stops sat beyond the line is unknowable, so the script marks the event without a quantity.
- A sweep can become a break. Price can sweep, close back and then close through the line on the next bar.
- Only the best line per side. Only the best fitted support and resistance lines are watched, so sweeps of other lines you draw yourself are not marked.
- Higher timeframes need a matching chart. When fitting lines on a higher timeframe, the chart's own period must divide it exactly.
Get Trendline Liquidity
Premium scripts are a one-time purchase in the Altrady marketplace and need a paid Altrady plan to run.
- Trendline Liquidity $7 This script on its own.
- Levels & Trendlines bundle $19 5 premium scripts, Trendline Liquidity included.
- Altrady Complete Suite $109 All 36 premium scripts.
Frequently asked questions
The stop orders that tend to rest just beyond a widely watched trendline. A sweep is price reaching through to fill them and closing back.
The same way as Auto Trendlines, from recent confirmed swing pivots, keeping the line that most pivots touch. The two scripts share their default settings so they draw the same lines.
No. A sweep is marked on the bar that closes back across the line, and the marker does not move afterwards.
One, trendline_sweep. It fires on a sweep of a support or resistance trendline, with the side named in its message.
Yes. Trendline Liquidity is a closed-source premium script. It runs on Altrady's servers, so only its output reaches your chart and the code is never shared. You buy it once in the Altrady marketplace, on its own, in the Levels & Trendlines bundle or in the Altrady Complete Suite, and it needs a paid Altrady plan to run. It is also included with your first annual Premium subscription.
Use the Get it in Altrady button on this page to open its listing in the Altrady marketplace. Once it is in your account, open the indicator picker on any chart in Altrady Charts and add Trendline Liquidity like any other indicator. Its settings are in the indicator's settings panel.