Educational reference. Measured from 138 recorded 10m bars of YM (E-mini Dow) on Thursday, September 10, 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 15.2% of the time, between 30 and 70 for 72.5%, and below 30 for 12.3%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 15.2% | 21 | 5 | 30 min | 110 min | |
| Between 30 and 70 | 72.5% | 100 | 11 | 10 min | 440 min | |
| Below 30 | 12.3% | 17 | 6 | 10 min | 110 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 110. 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.