What Does Standard Deviation Actually Read on NQ 15-minute Charts?
Educational reference. Measured from 652 recorded values on E-mini Nasdaq-100 15-minute charts through October 1, 2026.
The middle half of all readings sat between 25.29 and 51.52, with a median of 35.18.
Standard Deviation measures how widely price has been scattered around its own average. This page reports what it actually read on E-mini Nasdaq-100 15-minute charts — not what it is supposed to do, but the distribution of 652 recorded values over the last 90 days.
| Series | Median | Middle half | 5th / 95th | Full range |
|---|---|---|---|---|
| Standard Deviation | 35.18 | 25.29 – 51.52 | 15.23 / 95.98 | 8.23 – 129.59 |
The median is the middle reading, so a single unusual session cannot drag it. The middle half is where Standard Deviation 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 15-minute bar of E-mini Nasdaq-100 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 predictions.