Equity derivatives businesses have seen their revenues riven by losses during the first half of 2008. The malaise in credit, brought on by excessive US subprime mortgage losses, took hold of major ...

Harry Markowitz famously quipped that diversification is the only free lunch in investing. What he did not say is that this is only true if correlations are known and stable over time. Markowitz’s ...

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 ...

Leslie Kramer is a writer for Institutional Investor, correspondent for CNBC, journalist for Investopedia, and managing editor for Markets Group. Correlation measures the linear relationship between ...

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 ...