Most indexes, like the S&P 500 and Nasdaq Composite, assign a higher weighting to the largest companies by market cap. For example, Apple has roughly 11 times the market cap of Coca-Cola, so it has a much higher weighting in the S&P 500. But in the Dow, Apple is the 12th highest-weighted company by market cap because the index is price-weighted.

The S&P 500 financial index rallied, with banks helping lift the Dow to its highest ever. Read more at straitstimes.com.

The Dow Jones Industrial Average ( ^DJI 0.59%) is making its second major change in 2024. Earlier this year, Amazon ( AMZN -0.89%) replaced Walgreens Boots Alliance. Now, Nvidia ( NVDA -0.84%) is swapping with Intel, and Sherwin-Williams is replacing chemical giant Dow.