Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Market volatility refers to the degree to which the price of a security or index changes over a period of time. Market volatility can occur for a variety of reasons, including economic news — such as ...

Despite a recent uptick to a more normal level near 16, the Cboe Volatility Index has averaged around just 12.8 over the past 30 trading days as of July 18, indicating relative calm in U.S. equities.

Today we are taking a closer look at volatility -- specifically, what it means when there is an abundance or lack of volatility, as well as the two primary types of volatility each options trader must ...