A triple-smoothed momentum oscillator that filters out short-term noise.
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Overview
TRIX (Triple Exponential Average) is a momentum oscillator developed by Jack Hutson and published in Technical Analysis of Stocks & Commodities magazine in 1983. It calculates the percentage rate of change of a triple-smoothed EMA, making it exceptionally effective at filtering out short-term price cycles that cause false signals in single or double-smoothed oscillators.
Calculation: Apply an EMA of period N to price. Apply a second EMA of period N to the first EMA. Apply a third EMA of period N to the second EMA. TRIX = Percentage change in the triple EMA from the previous period.
The triple smoothing removes noise so effectively that TRIX can be used as a slow, reliable trend indicator or as a faster oscillator depending on the period chosen. A 12-period TRIX behaves as a smooth MACD-like oscillator; a 30-period TRIX provides long-term trend confirmation.
Signals: Zero-line crossovers indicate trend changes (above zero = bullish momentum, below zero = bearish). Divergence between TRIX and price is among the most reliable reversal signals — particularly on higher timeframes. A signal line (9-period SMA of TRIX) is often added to generate crossover signals analogous to MACD's signal line.
TRIX is particularly effective for identifying the trend's strength: a TRIX that is rising steeply indicates strong momentum, while a TRIX that is flat or turning indicates momentum exhaustion.
Strategy Code
This is a TradingView Pine Script example for this indicator. Paste it into the TradingView Pine Editor, add it to your chart, and adjust inputs for your market and timeframe.
//@version=6
strategy("TRIX Indicator", overlay=true)
fastLen = input.int(20, "Fast Length")
slowLen = input.int(50, "Slow Length")
fast = ta.ema(close, fastLen)This is a thinkorswim ThinkScript example for this indicator. Open thinkorswim, create a custom study, paste the script, and apply it to your chart.
input length = 15;
def trix = TRIX(length = length);
def buySignal = trix crosses above 0;
def sellSignal = trix crosses below 0;
AddOrder(OrderType.BUY_AUTO, buySignal, close, 1, Color.GREEN, Color.GREEN, "TRIX Buy");Join thousands of traders who use auto-Trading to execute this strategy automatically, 24/7.
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