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Trading and Investment Terminology

R-squared

R-squared explains to what extent the variance of one variable explains the variance of the second variable. 

Therefore, if the R2 of a model is 0.50, then approximately half of the observed variation can be explained by the model's inputs.

 

R-squared values range from 0 to 1 and are commonly stated as percentages from 0% to 100%. 

An R-squared of 100% means that all movements of a security are completely explained by movements in the index.

 

R-Squared is a statistical measure of fit that indicates how much variation of a dependent variable is explained by the independent variable(s) in a regression model.

The Formula for R-Squared Is

R2=1- Unexplained Variation/Total Variation

 

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