Educational reference. Measured from 137 recorded 10m bars of YM (E-mini Dow) on Monday, September 21, 2026.
RSI crossed above 70 4 separate times during the session, and the typical visit lasted 95 minutes. Across the whole session it sat above 70 for 25.5% of the time, between 30 and 70 for 71.5%, and below 30 for 2.9%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 25.5% | 35 | 4 | 95 min | 150 min | |
| Between 30 and 70 | 71.5% | 98 | 5 | 50 min | 750 min | |
| Below 30 | 2.9% | 4 | 1 | 40 min | 40 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 4 times, with a median stay of 95 minutes and a longest of 150. 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.