Topic: FRM Exam

Extreme Value Theory

Extreme value theory (EVT) aims to remedy a deficiency with value at risk (i.e., it gives no information about losses that exceed the VaR) and glaring weakness of delta normal value at risk (VaR): the dreaded-fat tails. The key is the idea that the tail has it’s...

How to Scale Autocorrelated Returns?

We know that the square root rule can be used to scale volatility with time. This rule assumes that the returns are independent and identically distributed. However, this assumption is not very realistic. This video illustrates a scaling factor that adjusts the square...

Volatility: Moving Average Approaches

Within stochastic volatility, moving average is the simplest approach. It simply calculates volatility as the unweighted standard deviation of a window of X trading days. This video demonstrates three “flavors:” population variance (volatility =...

Approaches to Estimating Volatility

There are lots of ways to estimate volatility. This video provides you an overview of the different approaches. It talks about implied volatility (forward looking) and deterministic (constant) and focus on stochastic volatility: volatility that changes over time,...

How to Calculate Historical Volatility

This video illustrates how to calculate the historical volatility (moving average volatility), using the example of historical returns. Historical daily volatility is the square root of the daily variance estimate. This video is developed by David from Bionic...

Page 2 of 612345...Last »