Triple EMA Oscillator (TRIX)

Created by Jack Hutson, TRIX is the rate of change for a 3 EMA smoothing of the price over a lookback window. TRIX is often confused with TEMA. [Discuss] 💬

chart for Triple EMA Oscillator (TRIX)

// C# usage syntax for Trix
IEnumerable<TrixResult> results =

// usage for Trix with Signal Line (shown above)
IEnumerable<TrixResult> results =
  quotes.GetTrix(lookbackPeriods, signalPeriods);


lookbackPeriods int - Number of periods (N) in each of the the exponential moving averages. Must be greater than 0.

signalPeriods int - Optional. Number of periods in the moving average of TRIX. Must be greater than 0, if specified.

Historical quotes requirements

You must have at least 4×N or 3×N+100 periods of quotes, whichever is more, to cover the convergence periods. Since this uses a smoothing technique, we recommend you use at least 3×N+250 data points prior to the intended usage date for better precision.

quotes is a collection of generic TQuote historical price quotes. It should have a consistent frequency (day, hour, minute, etc). See the Guide for more information.



Convergence warning: The first 3×N+250 periods will have decreasing magnitude, convergence-related precision errors that can be as high as ~5% deviation in indicator values for earlier periods.


Date DateTime - Date from evaluated TQuote

Ema3 decimal - 3 EMAs of the price

Trix decimal - Rate of Change of 3 EMAs

Signal decimal - SMA of Trix based on signalPeriods periods, if specified


See Utilities and helpers for more information.


This indicator may be generated from any chain-enabled indicator or method.

// example
var results = quotes

Results can be further processed on Trix with additional chain-enabled indicators.

// example
var results = quotes