Symmetric Weighted Moving Average (SWMA) Indicator Explained

The Symmetric Weighted Moving Average (SWMA) uses a mirror-image weight profile — rising to the center of the window, falling identically to the other side. The symmetry means no directional bias from the weighting itself: the line reflects the window's consensus price.

How It Works

• Weights increase to the window's midpoint and decrease symmetrically after it.
• Symmetric weighting removes the recency tilt of WMA/EMA-style averages.
• The output is smooth and phase-stable, at the cost of reacting later to fresh breaks.

How to Trade It

Use SWMA where you want an unbiased reference price: the centerline for band/envelope logic, the mean for Z-score-style stretch measures, or the smoothing stage inside composite indicators built in the Indicators Lab.

Building It in Setup.Cash

Add Symmetric Weighted Moving Average (SWMA) in the strategy builder — the length input controls its sensitivity — and use its value in any entry, exit, or filter condition. You can also combine it with other tools in the Indicators Lab or via the AI indicator generator. Compare with TRIMA, its triangular cousin. For the full category overview, see the advanced trend library guide.

Trend tools reward patience: pick one, pair it with a volatility or regime filter, and backtest before trading it live.