Educational reference. Measured from 92 recorded 15m bars of ES (E mini S&P 500) on Monday, October 26, 2026.
RSI crossed above 70 1 separate time during the session, and the typical visit lasted 105 minutes. Across the whole session it sat above 70 for 7.6% of the time, between 30 and 70 for 92.4%, and below 30 for 0.0%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 7.6% | 7 | 1 | 105 min | 105 min | |
| Between 30 and 70 | 92.4% | 85 | 2 | 637 min | 660 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 1 time, with a median stay of 105 minutes and a longest of 105. 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.
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