Standard Deviation API

Rolling measure of price dispersion around its mean over a fixed window, used as a fundamental gauge of volatility for the requested asset and timeframe.

About Standard Deviation API

The endpoint computes the standard deviation of closing prices over the supplied period length, sampled at the chosen timeframe. It underpins volatility-based tools such as Bollinger Bands, position-sizing models, and risk filters, and is often used directly to detect volatility regime shifts or to normalise other indicators.

Endpoint:

https://financialmodelingprep.com/stable/technical-indicators/standarddeviation?symbol=AAPL&periodLength=10&timeframe=1day

Standard Deviation API Parameters

How it works

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Related Standard Deviation APIs

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Simple Moving Average

Arithmetic mean of an asset's closing prices over a fixed look-back window, smoothing short-term noise to expose the underlying trend. Read more

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Williams

Momentum oscillator bounded between -100 and 0 that locates the current close relative to the highest high and lowest low of the look-back window. Read more

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Average Directional Index

Indicator measuring trend strength on a 0–100 scale, derived from smoothed directional movement and used to separate trending markets from ranging ones. Read more

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Triple Exponential Moving Average

A further lag-reduced moving average defined as 3·EMA − 3·EMA(EMA) + EMA(EMA(EMA)), tighter to price than both EMA and DEMA. Read more

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Relative Strength Index

Momentum oscillator bounded between 0 and 100 that measures the speed and magnitude of recent price changes to flag overbought and oversold conditions. Read more

Standard Deviation API FAQs

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