TRIX (Triple Exponential Average)

TRIX is a momentum oscillator that displays the percentage rate of change of a triple exponentially smoothed moving average of the closing price. Developed by Jack Hutson, it filters out insignificant price movements and highlights the underlying trend direction. TRIX oscillates around zero.

TRIX applies triple EMA smoothing, then calculates the rate of change:

EMA1 = EMA(Close, N)
EMA2 = EMA(EMA1, N)
EMA3 = EMA(EMA2, N)
TRIX = ((EMA3 - EMA3[1]) / EMA3[1]) * 100

The triple smoothing eliminates short-term cycles and noise.

• Above 0 — Underlying trend is up
• Below 0 — Underlying trend is down
• Zero-line crossovers — Major trend change signals
• Slow-moving — Filters out most market noise
• Leading — Can signal trend changes before they appear in price

Buy signals

• TRIX crosses above 0 (trend turns bullish)
• TRIX is below 0 and begins rising (momentum improving)
• Bullish divergence: price makes lower low, TRIX makes higher low

Sell signals

• TRIX crosses below 0 (trend turns bearish)
• TRIX is above 0 and begins falling (momentum weakening)
• Bearish divergence: price makes higher high, TRIX makes lower high

| Parameter | Default | Description | |-----------|---------|-------------| | Period | 14 | Period for each of the three EMAs |

| Condition | Meaning | |-----------|---------| | TRIX(14) > 0 | Bullish underlying trend | | TRIX(14) < 0 | Bearish underlying trend | | TRIX(14) cross_over 0 | Trend turned bullish | | TRIX(14) cross_under 0 | Trend turned bearish |

• TRIX is one of the best indicators for filtering market noise
• Slow to react — not ideal for short-term trading, excellent for swing/position trading
• A 14-period TRIX on daily charts captures medium-term trends well
• Divergences between TRIX and price often precede major reversals
• Can be used as a standalone trend filter for other strategies