Learn why correlation—not allocation—is the key to diversification, and how ETFs can help build portfolios with assets that ...

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 ...

What Is the Correlation Coefficient? The correlation coefficient is a metric that measures the strength and direction of a relationship between two securities or variables, such as a stock and a ...

Correlation coefficients are indicators of the strength of the linear relationship between two different variables, x and y. A linear correlation coefficient that is greater than zero indicates a ...

A correlation tells you how two financial variables move together. Financial variables can be assets like stock prices, and bond yields or economic indicators like interest rates. The direction in ...