Advancers/Decliners Ratio
Calculate the Advancers/Decliners ratio for a given price series.
The Advancers/Decliners ratio is a breadth indicator that measures the number of advancing stocks (stocks with positive price changes) versus the number of declining stocks (stocks with negative price changes).
The formula is as follows:
\[\text{Advancers} / \text{Decliners} = \text{Advancers} / \text{Decliners}\]Also known as: advance decline ratio, market breadth.
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Calculate the Advancers/Decliners Ratio in Python
The Advancers/Decliners Ratio is available in the Technicals module of the open-source Finance Toolkit. Install it with:
pip install financetoolkit -U
Then call get_advancers_decliners as shown below.
from financetoolkit import Toolkit
toolkit = Toolkit(tickers=["AAPL", "MSFT"])
toolkit.technicals.get_advancers_decliners()
Which returns:
| Date | AAPL | MSFT | Benchmark |
|---|---|---|---|
| 2026-06-18 | 298.01 | 379.4 | 746.74 |
| 2026-06-22 | 297.01 | 367.34 | 744.39 |
| 2026-06-23 | 294.3 | 373.94 | 733.58 |
| 2026-06-24 | 293.08 | 365.46 | 733.24 |
| 2026-06-25 | 275.15 | 352.83 | 734.3 |
| 2026-06-26 | 283.78 | 372.97 | 728.99 |
| 2026-06-29 | 281.74 | 368.57 | 741 |
| 2026-06-30 | 289.36 | 373.02 | 746.77 |
| 2026-07-01 | 294.38 | 384.28 | 745.76 |
| 2026-07-02 | 308.63 | 390.49 | 744.78 |
Parameters
get_advancers_decliners 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 name of the column containing the close prices. Defaults to “Adj Close”.
- 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 Breadth Indicators
The Technicals module page introduces the module, and the sidebar lists all of its functions.