Ultimate Oscillator
Calculate the Ultimate Oscillator for a given price series.
The Ultimate Oscillator is a momentum oscillator that combines short-term, mid-term, and long-term price momentum into a single value.
The formula is as follows:
\[\operatorname{Average}(i) = \operatorname{Sum}(\text{Buying Pressure},\; \text{window}_{i}) / \operatorname{Sum}(\text{True Range},\; \text{window}_{i})\] \[\text{Ultimate Oscillator} = 100 \cdot \left[(4 \cdot \text{Average}_{1}) + (2 \cdot \text{Average}_{2}) + \text{Average}_{3}\right] / 7\]Also known as: UO, ultimate momentum oscillator. See momentum_model.get_ultimate_oscillator for the Buying Pressure and True Range definitions.
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Calculate the Ultimate Oscillator in Python
The Ultimate Oscillator is available in the Technicals module of the open-source Finance Toolkit. Install it with:
pip install financetoolkit -U
Then call get_ultimate_oscillator as shown below.
from financetoolkit import Toolkit
toolkit = Toolkit(tickers=["AAPL", "MSFT"])
toolkit.technicals.get_ultimate_oscillator()
Which returns:
| Date | AAPL | MSFT | Benchmark |
|---|---|---|---|
| 2026-06-18 | 5.7264 | 1.4313 | 5.7432 |
| 2026-06-22 | 5.7478 | 0.3073 | 5.6389 |
| 2026-06-23 | 4.1905 | 1.5815 | 3.88 |
| 2026-06-24 | 3.6773 | 1.0805 | 2.8505 |
| 2026-06-25 | 0.392 | -0.874 | 1.6945 |
| 2026-06-26 | 1.0483 | 0.9805 | 2.1519 |
| 2026-06-29 | 1.9469 | 2.2386 | 4.6356 |
| 2026-06-30 | 3.0712 | 3.2361 | 5.7923 |
| 2026-07-01 | 4.2231 | 4.5312 | 6.0908 |
| 2026-07-02 | 5.615 | 5.5004 | 6.4095 |
Parameters
get_ultimate_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_1 (int, optional): The number of periods for the first short-term window. Defaults to 7.
- window_2 (int, optional): The number of periods for the second mid-term window. Defaults to 14.
- window_3 (int, optional): The number of periods for the third long-term window. Defaults to 28.
- 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.