Node reference

TSI — True Strength Index

Double-smoothed momentum oscillator, roughly ±100.

Rev. 2026.06

TSIindicator
InputsOutputs
Source
source · number
TSI
TSI
main · number
Configure
longPeriod
default 25
range 1–200
shortPeriod
default 13
range 1–100

What it does

Smooths momentum twice for a cleaner read of trend strength and direction around a zero line.

What happens

Recomputed once per candle from its wired source, incrementally (constant work per bar). It emits no value until the warmup period has passed; after that it produces a value every bar.

When to use

Momentum direction and zero-line crosses with less noise than raw momentum.

Gotchas

  • Double smoothing adds lag — signals confirm later than faster oscillators.