Trends/Momentum oscillators

TRIX

The one-bar percent change of a triple-smoothed exponential average.

Momentum oscillatorsBest on 6M, 1Y, 3YAlso called triple exponential rate of change

Illustration of the TRIX shape. It is a sketch, not real price data.

What it shows

Jack Hutson's TRIX smooths the close with an EMA, smooths that with another EMA, and smooths again. TRIX is the percent change of this triple-smoothed line.

The triple smoothing removes small swings. What remains is a slow line that crosses zero when the triple-smoothed average changes direction.

How we find it

The same code that draws it on your chart follows these steps, with the same result every time.

EMA1 = EMA(15) of the close.
EMA2 = EMA(15) of EMA1. EMA3 = EMA(15) of EMA2.
TRIX = (EMA3 − previous EMA3) ÷ previous EMA3 × 100.
Plot with a zero line.

Starting values: Length 15; Signal 9. These are proposed and will be tuned on real price data before launch.

How to read it

The panel shows TRIX.
Above zero: the smoothed line is rising.
Below zero: falling.

Status labels you may see

Label	What it means
Rising	TRIX is above zero.
Falling	TRIX is below zero.
Near zero	TRIX under 0.02 in size.

What cancels it

Nothing cancels it.

What traders check next

Signal line crosses.
How far from zero.
Price trend.

Limits

Lags a lot.
Slow to react.
Small numbers.

Try it in forecastviz

Open any ticker and choose Momentum oscillators → TRIX in the left menu.
Switch between 6M, 1Y, 3Y to see how the picture changes.
Compare with MACD and Triple exponential moving average on the same chart.

Open on a ticker

Questions

Why smooth three times?

To filter out short swings.

What is a good value?

There is no good or bad. It is a rate of change.