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QuaScript

Momentum Term Structure

Admin's Choice NewFree

Volatility-scaled momentum on 24 horizons: trends, pullbacks and early turns

WebGPU StudioOwn pane WebGPU CanvasHybridDashboardSignalsAlerts
quascriptgpuwebgpumomentumterm-structureheatmap

Favourites and Admin's Choice analyses are listed in the terminal's indicators window under Analysis Marketplace.

Language
QuaScript
Engine
Native C++, incremental on live ticks
Rendering
WebGPU + Canvas
Placement
Own pane
Settings
5
Plots
51
Lines of code
69
Source
presets/analysis/gpu/momentum_term_structure.qs
Momentum Term Structureengine result
Loading the engine result…
quatick-charts · QuaScript engine on synthetic 1-minute bars · drag to pan · scroll to zoom · Run executes the script on the engine (⌘/Ctrl+Enter while editing)

About

Momentum across 24 horizons at once. Each row is the return over a horizon (from `base` bars up to 24 steps longer) divided by the volatility expected over that horizon, so every row is a t-statistic: 0 is noise, +/-2 is a strong move for that horizon. Rows are drawn as a heatmap on a cool-warm ramp, and the white trace is the term-structure slope (short-horizon strength minus long-horizon strength), scaled onto the row axis. Reading: a warm column from top to bottom is a trend every horizon agrees on. Warm long rows with cool short rows are a pullback inside the trend, the classic entry. Short rows warming while long rows are still cool are an early reversal. Signals: full alignment up / down, pullback inside an up / down term structure.

51
Plotted series
4
Signal marks
1
Drawings
4
Alert rules
5
Settings
59
Lines of code

What it draws

Own pane · counted from the engine's plot table and the script's draw calls

Series

  • Line0 visible · 49 helper
  • Spline1
    Term slope
  • Level1
    Flat term structure
  • Band fills (render.band calls)1
  • Horizontal levels1
Legend
Term slope Flat term structure

Signal marks

Aligned upAligned downPullback in uptrendPullback in downtrend

Drawings and chart effects

  • Dashboard tables1 created

How it runs

From source to the live chart, for this script

  1. 1
    Compile

    The QuaScript compiler checks the 69-line script (59 lines of code) and lowers it for the native C++ engine. Compile errors point at the exact line and column.

  2. 2
    Place

    The header sets pane = hpane with height = 0.3 (30% of the chart), so the output gets its own pane under the price with its own scale.

  3. 3
    Compute

    The script runs once per bar, oldest to newest. Each bar also runs one loop (1 for). 1 persist variable keeps state (objects, counters) across bars.

  4. 4
    Stay live

    On the terminal the script keeps one live engine session: a tick rolls the forming bar back to its checkpoint and re-executes only that bar, and new bars are appended, so history is never rerun while the market moves. The live result is identical to a full run.

  5. 5
    Render

    The results are handed to the chart: series on WebGPU, drawings on the Canvas 2D QuaScript layer.

  6. 6
    Tune

    5 settings in 3 groups appear in the chart's settings dialog. Changing one reruns the engine with the new value.

Rendering

Hybrid: this script draws on 2 surfaces at once

WebGPUSeries renderer

The browser's modern GPU API. The chart uploads every line, band and mark of the script as GPU buffers and draws them in one pass, so dense heatmaps and dozens of series stay smooth while you pan and zoom. Without WebGPU support the chart's GPU layer falls back to WebGL 2, then Canvas 2D.

In this script
  • • 51 plotted series
  • • 1 band fill call
  • • 1 level
  • • 4 signal mark types

Chosen by render = webgpu in the header.

WebGLNot used

GPU drawing through WebGL 2, available in every current browser. Used for chart-native profiles and for series that ask for it with backend = "webgl". Fast for large numbers of bars and wide fills.

CanvasUsed

The browser's 2D drawing API. Text-heavy and object-style output (dashboard tables, zones, tags, segments), candle colors and backgrounds are painted by the QuaScript layer, a Canvas 2D surface over the chart. Series use Canvas when the script's header does not ask for a GPU.

In this script
  • • 1 dashboard tables (QuaScript layer)

Alerts

4 alert rules declared with alert.rule

Aligned up

Most horizons show significant upside momentum

Aligned down

Most horizons show significant downside momentum

Pullback in uptrend

Long horizons up, short horizons turning up from a dip

Pullback in downtrend

Long horizons down, short horizons turning down from a bounce

Settings

5 settings, grouped as in the chart's settings dialog

Horizons
SettingTypeDefaultRange / optionsId
Shortest horizonInteger21 – 50shortest_horizon
Horizon stepInteger41 – 50horizon_step
Volatility windowInteger20020 – 5000volatility_window
Style
SettingTypeDefaultRange / optionsId
Color scale (t)Number2.50.5 – 6, step 0.1color_scale_t
Signals
SettingTypeDefaultRange / optionsId
Rows to alignInteger2012 – 24rows_to_align

Script

packages/quascript/presets/analysis/gpu/momentum_term_structure.qs

Header

analysis "Momentum Term Structure" {
    pane = hpane
    height = 0.3
    render = webgpu
    short_title = MTS
    precision = 2
}
Total lines
69
Code lines
59
Comment lines
9
Helper functions
0
Loops
1
Persistent variables
1
Higher-interval feeds
0
Engine plots
51

Built with

Statistics (stat.*)
stat.stdev
Math (math.*)
math.clampmath.coalescemath.logmath.maxmath.sqrt
Imported modules
viz/premium

Discussion

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