Where SPY’s ADX sat on August 20, 2026
Educational reference. Measured from 871 recorded 1m bars of SPY on Thursday, August 20, 2026.
ADX crossed above 25 11 separate times during the session, and the typical visit lasted 12 minutes.
Across the whole session it sat above 25 for 37.7% of the time, between 20 and 25 for 14.4%, and below 20 for 48.0%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit |
|---|---|---|---|---|---|
| Above 25 | 37.7% | 328 | 11 | 12 min | 146 min |
| Between 20 and 25 | 14.4% | 125 | 20 | 6 min | 13 min |
| Below 20 | 48.0% | 418 | 10 | 48 min | 90 min |
Why the visit count matters more than the percentage
A share of the session says how much time a reading spent in a band. It does not say whether that time came as one sustained stretch or as repeated brief excursions. Here the reading entered the zone above 25 11 times and left it 11 times, with a median stay of 12 minutes and a longest stay of 146 minutes beginning at 07:30 ET. Below 20 there were 10 visits, a median of 48 minutes and a longest of 90 minutes.
Where in the session it happened
| Hour (ET) | Above 25 | Between | Below 20 | Bars |
|---|---|---|---|---|
| 04:00 | 100% | 0% | 0% | 54 |
| 05:00 | 12% | 46% | 41% | 41 |
| 06:00 | 0% | 0% | 100% | 45 |
| 07:00 | 49% | 3% | 47% | 59 |
| 08:00 | 100% | 0% | 0% | 60 |
| 09:00 | 95% | 5% | 0% | 60 |
| 10:00 | 0% | 15% | 85% | 60 |
| 11:00 | 0% | 3% | 97% | 60 |
| 12:00 | 25% | 7% | 68% | 60 |
| 13:00 | 65% | 27% | 8% | 60 |
| 14:00 | 58% | 17% | 25% | 60 |
| 15:00 | 0% | 5% | 95% | 60 |
| 16:00 | 22% | 34% | 43% | 58 |
| 17:00 | 20% | 23% | 57% | 44 |
| 18:00 | 25% | 31% | 44% | 48 |
| 19:00 | 0% | 29% | 71% | 41 |
| 20:00 | 0% | 0% | 100% | 1 |
Same reading, previous session: SPY 1m ADX, August 19, 2026
What this is and is not
This is a record of where one indicator sat during one completed session. It is not a forecast, and it makes no claim that any reading preceded a move. Whether crossing 25 tends to be followed by a larger move is a separate question, measured separately.
How this was measured
Every 1m bar recorded for SPY on Thursday, August 20, 2026 — 871 bars from 04:01 to 20:00 ET — was classified by its ADX reading. A visit is an unbroken run of consecutive bars in the same band. The session was complete before this page was built.