FindMF

Volatility (Standard Deviation)

Volatility, measured as the annualised standard deviation of returns, shows how much a fund's returns swing around their average. Higher volatility means a bumpier ride and a wider range of likely outcomes.

volatility = stddev(monthly_returns) * sqrt(12) * 100 (as %)

What volatility tells you

Volatility is the most common measure of how risky a fund feels month to month. A fund averaging 12% a year with 8% volatility moves in a tighter band than one averaging 12% with 20% volatility — even though their average return is identical.

How to read it

How FindMF computes it

We resample each fund's NAV (from AMFI daily data) to month-end closes and take monthly returns over completed months only — the current partial month is excluded. Volatility is the standard deviation of those monthly returns, annualised by multiplying by sqrt(12) and expressed as a percentage. At least 12 months are required, or the metric is suppressed. Details on methodology.

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