Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J Catalano is a CFP and Registered ...

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Correlation coefficients range from -1 to +1, indicating the strength of relationships between variables. Investors use correlation coefficients for portfolio diversification to reduce risk.

An Excel pie chart displays categories of data as wedges in a circular graph. This format allows users to quickly see the contribution each category makes to the total figure and a correlation of ...

Mark Gongloff, opens new tab finds this astonishing chart in a Morgan Stanley note this morning. It shows the degree to which hedge fund returns, in aggregate, are correlated with our old friend the S ...