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 ...

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also ...

Returns alone don't tell the full story of a mutual fund. Here's how alpha, beta, Sharpe ratio and other key metrics can help investors assess risk and performance.