Chande Momentum Oscillator (CMO)
Calculate the Chande Momentum Oscillator (CMO) for a given price series.
The Chande Momentum Oscillator is an indicator that measures the momentum of a price series and identifies overbought and oversold conditions.
The formula is as follows:
\[\text{CMO} = ((\text{Sum of Upward Change}) - (\text{Sum of Downward Change})) / ((\text{Sum of Upward Change}) + (\text{Sum of Downward Change}))\]Also known as: CMO, Chande momentum.
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Calculate the Chande Momentum Oscillator (CMO) in Python
The Chande Momentum Oscillator (CMO) is available in the Technicals module of the open-source Finance Toolkit. Install it with:
pip install financetoolkit -U
Then call get_chande_momentum_oscillator as shown below.
from financetoolkit import Toolkit
toolkit = Toolkit(tickers=["AAPL", "MSFT"])
toolkit.technicals.get_chande_momentum_oscillator()
Which returns:
| Date | AAPL | MSFT | Benchmark |
|---|---|---|---|
| 2026-06-18 | -21.8609 | -62.8906 | -10.2182 |
| 2026-06-22 | -15.625 | -81.4368 | -14.7997 |
| 2026-06-23 | -39.1826 | -66.1723 | -24.6608 |
| 2026-06-24 | -34.6231 | -64.2442 | -20.9163 |
| 2026-06-25 | -54.1904 | -69.4937 | -23.1112 |
| 2026-06-26 | -33.0342 | -37.3504 | -10.1446 |
| 2026-06-29 | -29.3073 | -37.0653 | 1.8792 |
| 2026-06-30 | -1.8539 | -26.9917 | 9.8861 |
| 2026-07-01 | 4.1068 | -11.1036 | 23.1787 |
| 2026-07-02 | 16.5859 | 0.1282 | 9.1933 |
Parameters
get_chande_momentum_oscillator accepts the following parameters:
- period (str, optional): The time period to consider for historical data. Can be “daily”, “weekly”, “quarterly”, or “yearly”. Defaults to “daily”.
- close_column (str, optional): The column in the historical data that represents the closing prices. Defaults to “Adj Close”.
- window (int, optional): The number of periods to consider for the CMO calculation. Defaults to 14.
- rounding (int | None, optional): The number of decimals to round the results to. Defaults to 4.
- growth (bool, optional): Whether to calculate the growth of the indicator values. Defaults to False.
- lag (int | list[int], optional): The lag to use for the growth calculation.
- standardize (bool, optional): Whether to standardize (Z-Score) the result. When combined with growth=True, standardizes the growth values instead of the raw values. Defaults to False. Defaults to 1.
Related Momentum Indicators
The Technicals module page introduces the module, and the sidebar lists all of its functions.