Educational reference. Measured from 1380 recorded 1m bars of NQ (E-mini Nasdaq 100) on Tuesday, September 22, 2026.
RSI crossed above 70 22 separate times during the session, and the typical visit lasted 2 minutes. Across the whole session it sat above 70 for 4.9% of the time, between 30 and 70 for 92.5%, and below 30 for 2.5%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 4.9% | 68 | 22 | 2 min | 16 min | |
| Between 30 and 70 | 92.5% | 1277 | 35 | 9 min | 237 min | |
| Below 30 | 2.5% | 35 | 12 | 2 min | 8 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 22 times, with a median stay of 2 minutes and a longest of 16. 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.