Educational reference. Measured from 103 recorded 10m bars of NQ (E-mini Nasdaq 100) on Friday, September 11, 2026.
RSI crossed above 70 5 separate times during the session, and the typical visit lasted 30 minutes. Across the whole session it sat above 70 for 17.5% of the time, between 30 and 70 for 82.5%, and below 30 for 0.0%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 17.5% | 18 | 5 | 30 min | 90 min | |
| Between 30 and 70 | 82.5% | 85 | 6 | 95 min | 470 min | |
| Below 30 | 0.0% | 0 | 0 | 0 min | 0 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 5 times, with a median stay of 30 minutes and a longest of 90. 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.