Learn how using historical data, instead of standard deviation, offers a more accurate assessment of stock volatility and risk management strategies.

Claire Boyte-White is the lead writer for NapkinFinance.com, co-author of I Am Net Worthy, and an Investopedia contributor. Claire's expertise lies in corporate finance & accounting, mutual funds, ...

Implied volatility is a powerful but often misunderstood metric that plays a major role in options trading. Implied volatility doesn’t tell you what’s going to happen to an option’s price, but it ...