Trillionaire-By The Numbers

FILE - SpaceX's Starship rocket lifts off during a test flight from Starbase, Texas, Friday, May 22, 2026.

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You can ignore AI giants like SpaceX, but your 401(k) won't

You can ignore AI giants like SpaceX, but your 401(k) won't

Think you can ignore all the hubbub around SpaceX, Elon Musk and IPOs? Your 401(k) won’t. Musk’s rocket company launched 19.2% higher in the first day of trading for its stock Friday, making it worth a total of $2.1 trillion. Whether or not you believe it deserves to be worth more than Exxon Mobil, Bank of America and Coca-Cola combined, the collective market does. And by virtue of having that big a value, SpaceX will soon join some high-profile stock indexes. That matters for investors and their 401(k) accounts because they’re depending more than ever on funds that simply mimic these indexes.