What Does Standard Deviation Actually Read on SI 15-minute Charts?
Educational reference. Measured from 468 recorded values on Silver 15-minute charts through September 29, 2026.
The middle half of all readings sat between 0.1074 and 0.2409, with a median of 0.1509.
Standard Deviation measures how widely price has been scattered around its own average. This page reports what it actually read on Silver 15-minute charts — not what it is supposed to do, but the distribution of 468 recorded values over the last 90 days.
| Series | Median | Middle half | 5th / 95th | Full range |
|---|---|---|---|---|
| Standard Deviation | 0.1509 | 0.1074 – 0.2409 | 0.0662 / 0.4181 | 0.0499 – 0.6199 |
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 Silver 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.