Educational reference. Measured from 87 recorded 15m bars of BTCUSD (Bitcoin) on Sunday, September 13, 2026.
ADX crossed above 25 3 separate times during the session, and the typical visit lasted 330 minutes. Across the whole session it sat above 25 for 82.8% of the time, between 20 and 25 for 17.2%, and below 20 for 0.0%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 25 | 82.8% | 72 | 3 | 330 min | 735 min | |
| Between 20 and 25 | 17.2% | 15 | 2 | 112 min | 165 min | |
| Below 20 | 0.0% | 0 | 0 | 0 min | 0 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 330 minutes and a longest of 735. 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.