Chaikin Money Flow (CMF)
Calculate the Chaikin Money Flow (CMF) for a given price series.
The Chaikin Money Flow sums the same Money Flow Volume used by the Accumulation/ Distribution Line over a rolling window and normalizes it by the window’s total volume, turning the running (unbounded) Accumulation/Distribution Line into a bounded oscillator. Sustained readings above zero indicate buying pressure (accumulation) is dominating over the window, while sustained readings below zero indicate selling pressure (distribution).
The formula is as follows:
\[\text{Money Flow Multiplier} = ((\text{Close} - \text{Low}) - (\text{High} - \text{Close})) / (\text{High} - \text{Low})\] \[\text{Money Flow Volume} = \text{Money Flow Multiplier} \cdot \text{Volume}\] \[\text{CMF} = \operatorname{Sum}(\text{Money Flow Volume},\; \text{window}) / \operatorname{Sum}(\text{Volume},\; \text{window})\]Also known as: CMF, Chaikin Money Flow.
Chaikin Money Flow (CMF) in Python or via the MCP
Install the Finance Toolkit with:
pip install financetoolkit -U
Then call get_chaikin_money_flow as shown below.
from financetoolkit import Toolkit
toolkit = Toolkit(
tickers=["ETHUSD", "SOLUSD"],
api_key="FINANCIAL_MODELING_PREP_KEY",
start_date="2021-01-01",
end_date="2025-12-31",
)
toolkit.technicals.get_chaikin_money_flow().tail(5)
Or, after setting up the Finance Toolkit MCP, ask:
How did the Chaikin Money Flow of Ether and Solana compare from 27 to 31 December 2025?
Which returns:
| Date | ETHUSD | SOLUSD | Benchmark |
|---|---|---|---|
| 2025-12-27 | -0.0938 | -0.143 | 0.0688 |
| 2025-12-28 | -0.1006 | -0.0945 | 0.0818 |
| 2025-12-29 | -0.1815 | -0.1419 | 0.1253 |
| 2025-12-30 | -0.1279 | -0.0749 | 0.0534 |
| 2025-12-31 | -0.1646 | -0.1521 | -0.0918 |
Parameters
get_chaikin_money_flow accepts the following parameters.
| Parameter | Type | Description | Example |
|---|---|---|---|
period | str | The time period to consider for historical data. Can be “intraday”, “daily”, “weekly”, “monthly”, “quarterly” or “yearly”. Defaults to “daily”. | "weekly" |
close_column | str | The column name for closing prices in the historical data. Defaults to “Adj Close”, in which case the open, high and low prices are adjusted for dividends in the same way. | "Close" |
window | int | Number of periods to sum the Money Flow Volume and volume over. Defaults to 20. | 10 |
rounding | int | None | The number of decimals to round the results to. Defaults to None, which uses the rounding of the Toolkit (4 unless set otherwise). | 2 |
growth | bool | Whether to calculate the growth of the Chaikin Money Flow. Defaults to False. | True |
lag | int | list[int] | The lag to use for the growth calculation. Defaults to 1. | 4 |
standardize | bool | Whether to standardize (Z-Score) the result. When combined with growth=True, standardizes the growth values instead of the raw values. Defaults to False. | True |