Calculating correlation between Apple and Google Stocks

Correlation shows the strength of a relationship between two variables and is expressed numerically by the correlation coefficient. The correlation coefficient's values range between -1.0 and 1.0.

A perfect positive correlation means that the correlation coefficient is exactly 1. This implies that as one security moves, either up or down, the other security moves in lockstep, in the same direction. A perfect negative correlation means that two assets move in opposite directions, while a zero correlation implies no linear relationship at all.

We have taken daily close prices of these two stocks from yahoo finance dated 19-08-2004 to 17-05-2023(approx. 19 years) data to calculate this value.

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