What Does Commodity Channel Index Actually Read on SPY 5-minute Charts?
Educational reference. Measured from 9,548 recorded values on SPDR S&P 500 ETF 5-minute charts through September 4, 2026.
The middle half of all readings sat between -78.11 and 88.70, with a median of 13.90.
Commodity Channel Index measures how far price has moved from its own recent average, in units of typical deviation. This page reports what it actually read on SPDR S&P 500 ETF 5-minute charts — not what it is supposed to do, but the distribution of 9,548 recorded values over the last 90 days.
| Series | Median | Middle half | 5th / 95th | Full range |
|---|---|---|---|---|
| Commodity Channel Index | 13.90 | -78.11 – 88.70 | -168.02 / 174.14 | -466.67 – 466.67 |
The median is the middle reading, so a single unusual session cannot drag it. The middle half is where Commodity Channel Index 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 100 | 2,048 | 21.4% |
| Between -100 and 100 | 5,765 | 60.4% |
| Below -100 | 1,735 | 18.2% |
Commodity Channel Index spent 60% of its time between -100 and 100 on this chart. A reading beyond 100 appeared about once every 5 bars, and below -100 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 5-minute bar of SPDR S&P 500 ETF 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.