Educational reference. Measured from 92 recorded 15m bars of MES (Micro E-mini S&P 500) on Monday, September 28, 2026.
ADX crossed above 25 3 separate times during the session, and the typical visit lasted 180 minutes. Across the whole session it sat above 25 for 41.3% of the time, between 20 and 25 for 38.0%, and below 20 for 20.7%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 41.3% | 38 | 3 | 180 min | 315 min | |
| Between 20 and 25 | 38.0% | 35 | 4 | 127 min | 210 min | |
| Below 20 | 20.7% | 19 | 1 | 285 min | 285 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 3 times, with a median stay of 180 minutes and a longest of 315. 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.