Educational reference. Measured from 1021 recorded 1m bars of ES (E-mini S&P 500) on Friday, September 11, 2026.
ADX crossed above 25 18 separate times during the session, and the typical visit lasted 17 minutes. Across the whole session it sat above 25 for 40.6% of the time, between 20 and 25 for 19.5%, and below 20 for 39.9%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 40.6% | 415 | 18 | 17 min | 58 min | |
| Between 20 and 25 | 19.5% | 199 | 38 | 5 min | 12 min | |
| Below 20 | 39.9% | 407 | 21 | 16 min | 74 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 18 times, with a median stay of 17 minutes and a longest of 58. 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.