Trend Intensity Index

Trend Intensity Index grades how one-sided a market has been against its own average. Each bar's deviation from a simple moving average is split by sign, a recent window is summed on each side, and the upside share plots from 0 to 100, the first faithful build of the Trend Intensity Index as Pee specified it. The line colors bullish above the 50 midline and bearish below, a gradient fill anchors it to 50, and dashed trend levels sit at 20 and 80.

How to Trade the Trend Intensity Index?

• Above the Upper Level: readings over 80 grade as an established uptrend, the classic gate restricting a trend system to its long signals; the crossing up and the roll back down both carry alerts.
• Below the Lower Level: the mirrored downtrend read, with its own fading alert when the reading recovers above 20.
• Midline cross: the dominant side of the average flips; optional circles mark the spot and alerts cover both directions even with markers hidden.

Trend Intensity Index Settings

• Source (default close): series measured against its own moving average, per the original specification.
• MA Length (default 60): bars in the simple moving average deviations are measured from.
• Deviation Window (default 30): recent bars whose deviations are accumulated, conventionally half the MA length.
• Method (default Deviation Magnitudes): sums deviation sizes per the original design, so a market hugging its average from above still grades as trending; Bar Count counts bars on each side instead.
• Upper Level (default 80) and Lower Level (default 20): established-trend thresholds. Conventions, not optimized values.
• Style: Established Trend Background (off) and Midline Cross Markers (off).

Frequently Asked Questions

How does the TII differ from the Average Directional Index?

Should I change the 60/30 defaults?

Why does a strong trend stay near 100 for so long?