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fn_registry/functions/finance/annualized_volatility.md
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egutierrez 113c6dfd71 feat: 15 funciones finance — indicadores, riesgo e IO de mercado
11 funciones puras con implementación real:
SMA, EMA, RSI, BollingerBands, VWAP, LogReturn, AnnualizedVolatility,
SharpeRatio, MaxDrawdown, NormalizeOHLCV, TickToOHLCV

4 funciones impuras (stubs):
FetchOHLCV, StreamTicks, WriteOHLCVToParquet, LoadOHLCVFromDuckDB

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-28 02:23:31 +01:00

32 lines
814 B
Markdown

---
name: annualized_volatility
kind: function
lang: go
domain: finance
version: "1.0.0"
purity: pure
signature: "func AnnualizedVolatility(returns []float64, periodsPerYear float64) float64"
description: "Calcula la volatilidad anualizada a partir de una serie de retornos y la frecuencia de los periodos."
tags: [finance, volatility, risk, annualized]
uses_functions: []
uses_types: []
returns: []
returns_optional: false
error_type: ""
imports: [math]
tested: false
tests: []
test_file_path: ""
file_path: "functions/finance/annualized_volatility.go"
---
# annualized_volatility
Calcula la volatilidad anualizada como `stddev(returns) * sqrt(periodsPerYear)`. Usa desviacion estandar muestral (n-1).
## Ejemplo
```go
vol := finance.AnnualizedVolatility([]float64{0.01, -0.02, 0.015, 0.005, -0.01}, 252)
```