Visuals & Logic

The pane is a bounded reading of how far price has stretched from a chosen baseline, measured in units of the instrument's own recent volatility. The slow line, the blend, and the color code are how the tool lets you read that stretch at a glance without losing what goes into it. If you build the mental model on this page correctly once, the rest of the pack becomes enumeration and edge cases.

This page teaches the model first and walks the visual grammar second. Read in order on a first pass.

The mental model: stretch, not momentum

A moving-average oscillator of this shape is often described as a "momentum" tool, and the description is wrong in a specific way. Momentum in the technical sense is rate of change — it asks how fast price is moving. Stretch asks something different: how far from the baseline price currently sits, regardless of how fast it got there. A fast push and a slow grind can land on the same stretch value, because the stretch reading does not care about the path.

What that changes in practice:

• A pane at 80 means price is currently sitting well above the baseline. It does not mean price is still moving upward. Momentum may have already turned while stretch is still elevated.

• A pane at 20 means price is sitting well below the baseline. It does not mean price is still moving downward. The downside push may be finished while the stretch is still near the floor.

• A pane crossing the midline from below does not mean "price is now pushing up." It means price has pulled close enough to the baseline to no longer be stretched below it.

Confusing stretch for momentum is the most common interpretive failure on a pane like this. The misread produces surprise in two directions. You will see the pane "refuse to turn" during a strong trend and wonder why the oscillator is not rolling over — it is not rolling over because stretch is high and staying high; the baseline has not closed the gap. You will also see the pane move when price looks stationary, because the baseline shifted on a new bar, or ATR adjusted, or the slot's higher-timeframe bar just closed. Both of those are behaving correctly for stretch; both feel broken to a momentum reader.

The cleanest way to drill the model: when the pane moves in a way that surprises you, ask "did price move relative to the baseline, did the baseline move, or did the volatility scale change?" One of those is almost always the answer, and watching which one trains the mental model faster than any amount of reading.

The bounded scale

The pane is bounded into 0..100. That boundary is chosen, not accidental. Without it, raw ATR-scaled distance can run off to whatever number the market hands you — great for precision, bad for comparability. With it, a reading on a calm instrument and a reading on a volatile instrument live in the same visual space, and the 30/70 band lands in the same place on every chart.

What the bounded mapping costs:

• The raw ATR-scaled distance is compressed into a smooth 0..100 curve, with extra clamping around later smoothed and blended outputs to keep the pane inside its window. A reading near 100 means the visible read is crowded near the edge; it does not tell you exactly how much more raw distance exists beyond the visible scale.

• Readings that sit near the boundary for long stretches are saturated, not intense. The pane is not reporting that the move is twice as strong. It is reporting that the transformation has very little room left to separate additional stretch.

• Small differences near the midline are easier to see; small differences near the edges are compressed. Mid-pane detail survives better than boundary-zone detail.

If you want finer information near the boundaries, do not raise ATR Sensitivity until you pin the reading there. Move to a longer baseline, a less sensitive ATR setup, or an additional slot with different settings that will naturally live in the middle of the pane.

Fast line, slow line, and why both exist

Each slot plots a single visible line — its fast line. The slow line exists internally but is not plotted per-slot. What you see instead is the slot line's color, which is driven by whether the fast value is currently above or below the slot's own slow value.

The slow line is a smoothing of the fast read on that slot. At the default Slow Length of 3 with an EMA slow type, the slow is only a few bars behind the fast. At longer slow lengths, it lags more and creates a cleaner regime read — fewer color changes, each one heavier.

Why two lines rather than a single "is this slot elevated" reading? Because a single level reading forces you to make up a threshold for what counts as elevated, and the threshold would change by instrument. The fast-vs-slow comparison lets the slot decide its own threshold dynamically: elevated-for-this-slot is "fast above the recent average of fast." That is a scale-free, instrument-agnostic regime read inside a pane that already carries a scale-controlled level read.

The blend

The blend is the thicker pair of lines on the pane — a fast (colored) and a slow (gray). They are built from the enabled slots proportionally to their weights. Slots with zero weight are excluded. Slots with positive weights are combined through a normalization rule; what matters in practice is the ratio of weights to each other, not the absolute values. A slot at 60 and a slot at 30 is the same blend you get from a slot at 20 and a slot at 10.

Two reading habits help here:

• Read the blend first, the slots second. The blend is the headline.

• When the blend and a slot disagree, do not assume the blend is "right." The blend is a weighted summary. If a slot you care about is moving against the blend, the blend is telling you that slot is being outvoted by its peers — which may or may not be the thing you want to trust.

Color code, carefully

The fast-vs-slow rule is the same everywhere on the pane:

• Fast above slow: the slot or blend reads bullish. Slot lines color to their bullish tint; the blend fast line colors the same way; the fill between the blend lines tints the same direction.

• Fast below slow: the slot or blend reads bearish. Same visual rule, opposite tint.

• First-bar fallback: when a slot's slow value has not yet accumulated enough history to be defined, the slot compares fast against the midline instead. This produces a first-bar color that will update once the slow fills in. It is an artifact of pane loading, not a regime read, and it resolves within the slot's slow-length bars.

What the colors do not tell you, and this is where the misreads come from:

• They do not tell you how large the spread between fast and slow is. Two bars of fast creeping a sliver above slow and twenty bars of fast running well above slow wear the same color. A fresh bullish slot and a bullish slot that has been bullish for forty bars look identical on the pane. Duration and magnitude are not encoded in color — they are encoded in where the slot sits vertically and how wide the band is.

• They do not tell you how close the slot is to its own boundaries. A bullish slot pinned at 95 and a bullish slot cruising near 55 wear the same color. One of those is saturated; the other has room to move. The color code is a regime reading, not a level reading; you have to read both dimensions separately.

• They do not tell you whether a slot is agreeing with the blend or fighting it. Slot color and blend color are two independent statements. Comparing them is where the "which slot is driving this blend" question gets answered.

• They do not tell you whether alignment is meaningful. Ten slots wearing the same color is information about your configuration, not a vote. See the alignment section in Limitations & Trust Boundaries for the honest read.

Reference grid

Five horizontal lines anchor the pane:

• 0, green. The lower boundary of the pane.

• Oversold, dashed gray, at the user-set level (default 30).

• Mid Line, solid gray, at 50.

• Overbought, dashed gray, at the user-set level (default 70).

• 100, red. The upper boundary of the pane.

These are landmarks. They are not thresholds the tool enforces or alerts against — there are no cross-the-level alerts in this script. The 30 and 70 dashes exist to help you read "price is well stretched from this baseline" at a glance. You can pull them to 20 and 80 to make them rarer, or to 40 and 60 to make them more common. The oscillator values themselves do not change when you move the lines; only the landmarks change.

Line thickness and hierarchy

• Slot lines default to width 2. They are deliberately lighter than the blend.

• The blend lines default to width 3. They are deliberately heavier than any slot line.

• The gray blend slow line sits behind the colored fast line; the fill between them uses the fast/slow color to paint the band.

If you widen slot lines past the blend, you destroy the at-a-glance hierarchy. If you hide the blend and make slot lines heavier, you lose the summary. These are aesthetic choices with reading consequences — the default hierarchy is what lets you read the pane in a second instead of a full second pass.

How to read the pane in three passes

First pass — blend only:

• Is the blend fast above or below its slow? That is the regime.

• Where in the 0..100 space is the blend fast sitting? That is the stretch state.

• Is the band widening or narrowing? Widening means the blend is pushing further into its regime; narrowing means it is relaxing.

Second pass — slots:

• Do the slots agree with the blend, or is a slot fighting it?

• Are any slots pinned at the boundaries?

• Does any slot look like the one doing most of the work — moving sharply while others are flat? If so, your blend is effectively that slot with decoration.

Third pass — history:

• Is the current stretch normal for this instrument on this timeframe, or is it an outlier?

• How often does the blend cycle between bullish and bearish in the visible history? A pane that almost never flips is either extremely trendy history or a slow slot configuration that is drifting over the time window you are looking at.

Every one of those passes uses the pane as a reading instrument. None of them reads the pane as a trigger.

Where to go next

• How MTF and repaint behavior affect what you see: MTF & Repainting.

• How alerts interpret this visual state: Alerts.

• The specific misreads the visuals can lead to: Limitations & Trust Boundaries.