It’s the second time this year that the influential stock market index is seeing a shakeup. Here’s what to know. For the second time in 2024, the Dow Jones Industrial Average (INDEXDJX: .DJI) is getting a shakeup.

For more than 128 years, the iconic Dow Jones Industrial Average ( ^DJI 0.85%) has served as a barometer of Wall Street's health. Over that time, it's evolved from an index that contained a dozen (mostly) industrial stocks to one that now houses 30 diverse, multinational businesses.

S&P Dow Jones Indices announced the change late Friday, saying the move would "ensure a more representative exposure to the semiconductors industry." Intel stock is down 54% this year. Nvidia's is up 173%.