FTB-C000413 / Indicator

Slow Stochastic Percent D

Slow Stochastic Percent D is the second declared moving-average smoothing stage applied to valid Slow Percent K observations.

Also known asSlow %Dstochastic signal line

Intermediate Formula defined 1 linked topicPublished

Definitions

In plain terms

A common canonical form uses another three-observation SMA.

Technical

The stage begins only after enough valid slow-K values and inherits all upstream zero-range and missing-state delays.

Scope

It is a smoothed line, not an independent oscillator input.

Formula

Slow %D = SMA_smoothD(Slow %K)
LaTeX: D^s_t=SMA_b(K^s)_t
SymbolMeaningUnit
Slow %Kfirst smoothed stochastic linepercent
bsecond smoothing periodobservations

Output unit: percent

Examples

  • A governed lesson calculates or identifies Slow Stochastic Percent D only after its inputs, window, state, scale, and edge cases are declared.

Common misconceptions

  • It is a smoothed line, not an independent oscillator input.

Concept relationships

Prerequisites

Related

Where this concept is used

Evidence and governance

  1. Stochastic Oscillator Slow TA-Lib · first party technical publication

    Supports: preferred label, short definition, technical definition, formula

    Limits: Moving-average types, zero-range policy, and first-ready indexes can differ across implementations.

Reviewed by
fintech-builder-batch-008
Last reviewed
2026-07-29
Next review
2027-07-29
Record status
published