Educational reference. Measured from 138 recorded 10m bars of ES (E-mini S&P 500) on Monday, September 28, 2026.
ADX crossed above 25 4 separate times during the session, and the typical visit lasted 120 minutes. Across the whole session it sat above 25 for 39.1% of the time, between 20 and 25 for 21.7%, and below 20 for 39.1%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 39.1% | 54 | 4 | 120 min | 290 min | |
| Between 20 and 25 | 21.7% | 30 | 5 | 50 min | 120 min | |
| Below 20 | 39.1% | 54 | 2 | 270 min | 360 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 4 times, with a median stay of 120 minutes and a longest of 290. 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.