Educational reference. Measured from 203 recorded 5m bars of YM (E-mini Dow) on Friday, September 18, 2026.
RSI crossed above 70 6 separate times during the session, and the typical visit lasted 5 minutes. Across the whole session it sat above 70 for 7.9% of the time, between 30 and 70 for 90.1%, and below 30 for 2.0%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 7.9% | 16 | 6 | 5 min | 40 min | |
| Between 30 and 70 | 90.1% | 183 | 8 | 42 min | 355 min | |
| Below 30 | 2.0% | 4 | 1 | 20 min | 20 min |
RSI compares the size of recent gains with recent losses, so a reading above 70 says buying has dominated the last 14 bars — not that price is high. A long stay above 70 is a market trending up, which is the opposite of the reversal the word 'overbought' suggests.
Here the reading entered overbought territory 6 times, with a median stay of 5 minutes and a longest of 40. A brief excursion above 70 that resolves in minutes is noise on this timeframe. A sustained one is the signature of a trend that is still running, and selling into it is how traders get run over.