# Z-Deviation Waves Price feels noisy until you can name *how far* it’s drifting from “normal.” **Z-Deviation Waves** does exactly that. It turns your price series into a standardized gauge of stretch—how many standard deviations (σ) away from its recent average the market sits—so you can spot when moves are routine, meaningful, or extreme. Instead of guessing whether something is “overextended,” you’ll see it in plain numbers and clear colors. Use it to prepare for snap-backs, to time pullbacks within trends, or simply to understand when the tape is running hot or cold. --- # 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://docs.candelacharts.com/investing/momentum-and-oscillators/z-deviation-waves.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.