Educational reference. Measured from 96 recorded 15m bars of BTCUSD (Bitcoin) on Sunday, September 20, 2026.
ADX crossed above 25 3 separate times during the session, and the typical visit lasted 420 minutes. Across the whole session it sat above 25 for 72.9% of the time, between 20 and 25 for 16.7%, and below 20 for 10.4%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 72.9% | 70 | 3 | 420 min | 465 min | |
| Between 20 and 25 | 16.7% | 16 | 4 | 60 min | 60 min | |
| Below 20 | 10.4% | 10 | 1 | 150 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 3 times, with a median stay of 420 minutes and a longest of 465. 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.