Educational reference. Measured from 92 recorded 15m bars of ES (E-mini S&P 500) on Wednesday, September 16, 2026.
ADX crossed above 25 1 separate time during the session, and the typical visit lasted 165 minutes. Across the whole session it sat above 25 for 12.0% of the time, between 20 and 25 for 23.9%, and below 20 for 64.1%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 12.0% | 11 | 1 | 165 min | 165 min | |
| Between 20 and 25 | 23.9% | 22 | 3 | 30 min | 285 min | |
| Below 20 | 64.1% | 59 | 2 | 442 min | 735 min |
ADX measures trend STRENGTH and says nothing about direction — 30 is a strong move that may be up or down. Below 20 the market is ranging, and trend-following rules tend to be chopped up there.
Here the reading entered a trending reading 1 time, with a median stay of 165 minutes and a longest of 165. ADX is the filter most strategies gate on, so how long it actually held above the threshold decides how many of a day's signals would have been allowed through at all.