The simplest is to get two data sets side-by-side and use the built-in correlation formula. Investopedia.com. This is a convenient way to calculate a correlation between just two data sets.

Example of using correlation coefficients. Let’s say that you own three stocks, which we’ll call Company A, Company B, and Company C. All three are growth stocks in the technology space.

A simple calculation method is to use what's known as the Pearson correlation coefficient calculator, named after the English mathematician Karl Pearson. In this formula, r represents Pearson's ...

Every correlation coefficient formula requires time series data for the variables being considered. Get the right data for the market indicator and the specific stock's prices.

The correlation table shows that you should place your bets on the top player when the correlation is high (above, say, 0.25), the worst player when the correlation is low (below, say, -0.25), the ...