The swap reflects their reversal of fortunes within the tech industry and would have been unthinkable a few years ago.

Nvidia is replacing Intel on the Dow Jones Industrial Average, a shakeup to the blue-chip index that replaces a flagging semiconductor company with the primary vendor of GPUs for AI. The switch will take place on Nov.

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 Dow Jones Industrial Average held most of its midday gains in the afternoon session Wednesday as an inflation report showed price gains were in line with estimates. Meanwhile, a company backed by artificial intelligence giant Nvidia took a dive in the stock market today.