"Amazon's Inclusion in Dow Jones Signals Index Upgrade and Market Impact"

Amazon is set to join the Dow Jones Industrial Average, replacing Walgreens Boots Alliance, as part of a rebalancing effort prompted by Walmart's 3-for-1 stock split. The Dow, a measure of 30 established companies, is adjusting to reflect the evolving economy by adding Amazon and increasing its consumer retail exposure. While the Dow represents a narrow slice of the economy, professional investors tend to look at broader measures such as the S&P 500, which has nearly 17 times the number of companies within it. The Dow and S&P 500 have historically tracked closely, but diverged significantly in recent years due to differences in their composition and weighting methodologies.