> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fincept.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Volatility indicators

> True range, average true range (ATR) and normalized ATR, average day range, Chaikin's volatility, the mass index and the relative volatility index.

Toolset `ta_volatility`: 1 tool.

| Tool | What it does | Notes |
| - | - | - |
| `ta_volatility` | A volatility indicator from high/low(/close) bars (RVI from the closes or one series): its output aligned to the dates in price units (NATR in %), with the warm-up reported, the last value and a line chart. | |

Inputs, limits and outputs are described in [Fincept Technicals](/guides/fincept-technicals). Full schemas: `fincept_describe_tool`.


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