Amazon Joined the Dow and Walmart Split Its Stock, but 9 Companies Still Make Up Over 50% of the Index

The Dow Jones Industrial Average is one of the oldest and most respected stock market indexes. On Feb. 26, the index changed forever as Walmart (NYSE: WMT) split its stock and Amazon (NASDAQ: AMZN) replaced Walgreens Boots Alliance.

It marks the first shakeup since Honeywell International, Salesforce, and Amgen joined the Dow in 2020, replacing RTX, ExxonMobil, and Pfizer.

Here's what really moves the Dow, and why its changing composition represents a major theme sweeping the market.

Source Fool.com