Compound Indicators (Indicators of Indicators)

Trailing Sum indicator

The sum of an indicator's values over the last N periods.

Definition

The sum of an indicator's values over the last N periods.

Parameters

Inner indicator, Length (number of periods)

Example condition

text
`Trailing Sum(Volume(SPY), 5)` — Total volume over the last 5 bars.

Use in a strategy

Add this indicator to a strategy condition, choose its supported parameters and compare the output with the threshold required by your rule. Preserve the same interval and lookback when comparing backtests.

After saving the condition, inspect its asset, interval, lookback and comparison operator against the parameters above. If no trades occur, check whether the condition ever became true and whether the requested input data exists for that period. A missing input is not a zero-valued signal. An indicator produces an input to a rule. It does not establish future returns, and data availability can differ across assets and periods.