Educational reference. Measured from 138 recorded 10m bars of ZN (10-Year T-Note) on Tuesday, September 15, 2026.
RSI crossed above 70 3 separate times during the session, and the typical visit lasted 20 minutes. Across the whole session it sat above 70 for 3.6% of the time, between 30 and 70 for 87.7%, and below 30 for 8.7%.
| Band | Share of session | Bars | Separate visits | Median visit | Longest visit | |
|---|---|---|---|---|---|---|
| Above 70 | 3.6% | 5 | 3 | 20 min | 20 min | |
| Between 30 and 70 | 87.7% | 121 | 5 | 140 min | 850 min | |
| Below 30 | 8.7% | 12 | 2 | 60 min | 100 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 3 times, with a median stay of 20 minutes and a longest of 20. 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.