Today’s Chart of the Day from a Bloomberg article discusses Exxon Mobil's exclusion from the Dow Jones Industrial Average Index. The chart shows that out of the top 15 companies in the United States, more than half, noted in black, are excluded. This is to be expected, since the index only includes 30 companies out of 3,900+/- in the United States.
Side note: As of mid-June 2023, the Dow Jones Index is trailing the S&P 500 by 10% since it does not include stocks such as Google, Amazon, and NIVIDIA, which are having an incredible year.