Educational reference. Measured from 92 recorded 15m bars of MES (Micro E-mini S&P 500) on Thursday, September 17, 2026.
ADX crossed above 25 2 separate times during the session, and the typical visit lasted 307 minutes. Across the whole session it sat above 25 for 44.6% of the time, between 20 and 25 for 12.0%, and below 20 for 43.5%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 44.6% | 41 | 2 | 307 min | 510 min | |
| Between 20 and 25 | 12.0% | 11 | 2 | 82 min | 90 min | |
| Below 20 | 43.5% | 40 | 1 | 600 min | 600 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 2 times, with a median stay of 307 minutes and a longest of 510. 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.