How to Calculate the Dow Jones Average

By Business & Finance Last updated Friday, April/26/2024

1). Determine all the companies in the DJIA. This is available through the Dow Jones website with registration only; however, you can access through Barron's free of charge. Obtain a price for all the stocks in the DJIA.
2). Determine the Dow Divisor. This is also available through the Barron's website at the top of the page. Go to the Dow Averages Hour by Hour Performance & Volume available online and look to the right of "30 INDUSTRIALS." For example, the divisor may be 0.132319125.
3). Find the sum of all prices obtained in Step 2; that is, all 30 companies in the DJIA. You can also get this information from the sources sited in Step 2.
4). Calculate the DJIA. Divide the sum of all 30 stocks by the current Dow Divisor.