What Does Stochastic Oscillator Actually Read on CL 15-minute Charts?
Educational reference. Measured from 5,719 recorded values on Crude Oil 15-minute charts through October 2, 2026.
The middle half of all readings sat between 26.18 and 77.82, with a median of 53.06.
Stochastic Oscillator measures where the close sits inside the recent high–low range, on a 0–100 scale. This page reports what it actually read on Crude Oil 15-minute charts — not what it is supposed to do, but the distribution of 5,719 recorded values over the last 90 days.
| Series | Median | Middle half | 5th / 95th | Full range |
|---|---|---|---|---|
| %K | 53.06 | 26.18 – 77.82 | 9.28 / 92.70 | 1.16 – 100.00 |
| %D | 53.21 | 27.34 – 76.77 | 10.84 / 91.54 | 3.23 – 99.16 |
The median is the middle reading, so a single unusual session cannot drag it. The middle half is where Stochastic Oscillator sat on half of all bars — the range you should expect to see most of the time on this chart.
How often it reaches the levels people watch
| Reading | Bars | Share |
|---|---|---|
| Above 80 | 1,289 | 22.5% |
| Between 20 and 80 | 3,421 | 59.8% |
| Below 20 | 1,009 | 17.6% |
Stochastic Oscillator spent 60% of its time between 20 and 80 on this chart. A reading beyond 80 appeared about once every 4 bars, and below 20 about once every 6. How rare a signal is matters as much as what it says.
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How this was measured
Every 15-minute bar of Crude Oil 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.