Volatility is important for position sizing, determining risk, calculating stops and profit-targets, and rebalancing portfolios. Average true range is a useful measure for position sizing in futures ...

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 ...

There is no single measure of implied volatility for FX markets, unlike those that exist for the S&P500 or for US interest rates. To fill the gap, banks build their own proprietary indices, such as ...

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, ...