# What is Volatility?

The simple answer is the standard deviation of periodic returns. This video takes some sample data for closing prices of a stock and demonstrates how volatility is calculated in Excel.

In finance, such as for price series, usually log returns are used, where log is the natural logarithm.

Get smart about tech at work.

As a non-technical professional, learn how software works with simple explanations of tech concepts. Learn more...

# Data Science for Finance Bundle: 43% OFF

Get our

Get it now for just $29**Data Science for Finance Bundle**for just $29 $51.# Checkout our eBooks and Templates

eBooks and templates related to finance, R programming, Python, and Excel.

Visit Store