# Chaikin Money Flow (CMF) {% embed url="" %} ​CMF (Chaikin Money Flow) technical analysis algorithm was developed by Marc Chaikin in **1966**. CMF explains the strength of the market in terms of money inflow and outflow. The direction of the CMF movement indicates the strength of the buy or sell. According to this; for an upward moving CMF, as an increase in buyers in the market, that is, an increase in money flow; For a CMF moves downward, it is interpreted as an increase in sellers, that is, a decrease in money flow. It is usually found using periods of 20 and 21 days. CMF movement oscillates between -1 below the zero line and +1 above it.
{% hint style="success" %} When the CMF crosses above the zero line it is considered a possible **buy signal** for traders, and when it crosses below the zero line, it is considered a possible **sell signal** for traders. {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://academy.coinlegs.com/advances/chaikin-money-flow-cmf.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.