Pumori: A Double Fractional EMA Volatility and Impulse Indicator

Summary

Pumori applies two recursive EMA passes with a sub-unit length to a selected input: RSI, an RSI moving average, closing price, or a custom series. The author presents the unusually responsive transform as a carrier that makes short-term oscillation and volatility expansion or contraction visible. Users can view the result in a separate pane or overlay it on price, with shading between the current and one-bar-offset line to show the gap.

The document suggests reading expanding bands as active volatility and contraction as suppressed conditions. Its diagnostic mode smooths RSI first and is offered for distinguishing cleaner movement from jitter; the release notes also describe using it to inspect whether a reversal is being undermined. These are interpretive use cases, not demonstrated trading results: no asset tests, performance statistics, or validation are provided. The unusual EMA length is intended to amplify movement, so the output may also magnify noise, and the description does not establish that its visual envelope is a calibrated volatility measure or a standalone trade signal.

Key ideas

• The indicator applies two recursive EMA passes with a sub-unit length to a selectable input series.
• RSI is the default input, while smoothed RSI, closing price, and a custom series are also available.
• The author interprets band expansion and contraction as changes in short-term volatility activity.
• A one-bar offset and shaded gap provide a visual way to inspect lag and oscillation around the input.
• The document offers qualitative use cases but supplies no backtest or evidence of predictive performance.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.