TRIX

Momentum

Triple Exponential Average (Jack Hutson): the percentage change of a triple-exponentially-smoothed price line. Particularly noise-free.

Construction & calculation

Take the EMA(15) of the closing price.
Take the EMA(15) of that again, and of that result the EMA(15) once more.
TRIX = the percentage daily change of that triple-smoothed line.

EMA1 = EMA(C, 15) EMA2 = EMA(EMA1, 15) EMA3 = EMA(EMA2, 15) TRIX = 100 x (EMA3(today) - EMA3(yesterday)) / EMA3(yesterday)

Interpretation

The triple smoothing filters out practically all cycles shorter than the chosen period. What remains is the underlying trend.
Above zero: the smoothed price line is rising. Below zero: it is falling.
Divergence between TRIX and price is rare, but when it occurs it is telling.

How the signal works in this scanner

Buy signal (green)The TRIX crosses the zero line from below to above.

Sell signal (red)The TRIX crosses the zero line from above to below.

Watch-outs & pitfalls

Slow. The TRIX finds no bottoms; it confirms trends that are already underway.
The values are small (often less than 0.1). Look at the sign and the slope, not the magnitude.
Requires at least 50 trading days.

Data note. The scanner works exclusively with closing prices (daily). Wherever the classic formula needs High, Low or Volume, these are approximated: the daily range via the rolling max/min of the closing price over the recent bars, and volume via the relative size of the day's move compared with the recent average. The signal logic is identical to the original, but absolute values may differ slightly from platforms that use intraday data and real volume.

Disclaimer. This explanation is educational and does not constitute investment advice. A technical signal is a probability, not a certainty: always use it together with other signals, the broader trend, the news around the stock and a predefined risk-management plan.

Generated: 26/10/2026 12:04