Educational reference. Measured from 69 recorded 15m bars of ES (E-mini S&P 500) on Friday, September 4, 2026.
ADX crossed above 25 1 separate time during the session, and the typical visit lasted 405 minutes. Across the whole session it sat above 25 for 39.1% of the time, between 20 and 25 for 13.0%, and below 20 for 47.8%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 39.1% | 27 | 1 | 405 min | 405 min | |
| Between 20 and 25 | 13.0% | 9 | 2 | 67 min | 75 min | |
| Below 20 | 47.8% | 33 | 2 | 247 min | 390 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 405 minutes and a longest of 405. 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.