What Does Bollinger Bands Actually Read on ES 1-minute Charts?
Educational reference. Measured from 89,341 recorded values on E-mini S&P 500 1-minute charts through September 4, 2026.
The middle half of all readings sat between 7,509 and 7,704, with a median of 7,577.
Bollinger Bands measures a moving average with bands set a number of standard deviations either side. This page reports what it actually read on E-mini S&P 500 1-minute charts — not what it is supposed to do, but the distribution of 89,341 recorded values over the last 90 days.
| Series | Median | Middle half | 5th / 95th | Full range |
|---|---|---|---|---|
| Upper | 7,577 | 7,509 – 7,704 | 7,428 / 7,789 | 7,312 – 7,843 |
| Middle | 7,573 | 7,503 – 7,700 | 7,420 / 7,786 | 7,303 – 7,836 |
| Lower | 7,568 | 7,497 – 7,696 | 7,410 / 7,784 | 7,292 – 7,833 |
The median is the middle reading, so a single unusual session cannot drag it. The middle half is where Bollinger Bands sat on half of all bars — the range you should expect to see most of the time on this chart.
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How this was measured
Every 1-minute bar of E-mini S&P 500 recorded in the last 90 days was read, and the values grouped without smoothing or filtering. Series with fewer than 400 readings are omitted rather than shown on thin evidence. These are recorded values, not forecasts.