# Tag Info

Let's $\Phi$ represent the standard normal CDF, and q the required var quantile (e.g., 95%) so your $z=\Phi^{-1}\left(q\right)$. Now assume the return x is normally distributed with annualised mean $\mu$ and annualised standard deviation $\sigma$. By the way you can annualise your daily volatility by scaling it by $\sqrt{258}$ because we are in simple ...