Educational reference. Measured from 96 recorded 15m bars of BTCUSD (Bitcoin) on Wednesday, September 9, 2026.
ADX crossed above 25 2 separate times during the session, and the typical visit lasted 397 minutes. Across the whole session it sat above 25 for 55.2% of the time, between 20 and 25 for 26.0%, and below 20 for 18.8%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 55.2% | 53 | 2 | 397 min | 420 min | |
| Between 20 and 25 | 26.0% | 25 | 5 | 45 min | 165 min | |
| Below 20 | 18.8% | 18 | 3 | 60 min | 150 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 397 minutes and a longest of 420. 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.