Billionaire Rout: World's Six Richest Lose KSh 16.87T as AI Spending Fears Hit Tech SharesBillionaire Rout: World's Six Richest Lose KSh 16.87T as AI Spending Fears Hit Tech Shares

The sell-off matters beyond the rich list. Forbes valued Elon Musk at KSh 119.10T ($917.6B) at 3:00 PM EDT (10:00 PM EAT), after he lost about KSh 9.61T ($74B) in a single day, so the ranking now moves with the market's view of whether hundreds of billions of dollars in AI infrastructure will pay off.

Forbes' figures are live estimates and differ from those of other wealth trackers.

Musk's companies take the heaviest hit

SpaceX shares fell nearly 9%, even though the company reported 161% year-on-year revenue growth on Tuesday. Investors are weighing a KSh 4.54T ($35B) cash-flow gap and Musk's confirmation that SpaceX is considering a merger with Tesla.

Tesla shares fell about 2% in the afternoon. The carmaker reported third-quarter free cash flow of KSh 194.70B ($1.5B), against analyst expectations of a KSh 636.02B ($4.9B) cash burn. It also cut full-year capital spending guidance to KSh 2.60T ($20B) from more than KSh 3.25T ($25B), which raised concern that its AI and robotics projects are moving more slowly.

Mwenendo earlier reported on how Musk was honoured with a science medal alongside several of the same technology leaders now facing the market's scrutiny.

Meta, Dell and Amazon follow the slide

Meta fell 8% after third-quarter revenue rose 26% but capital spending reached KSh 4.53T ($34.9B) for the quarter. The company raised the low end of its spending forecast by KSh 649B ($5B), to a range of KSh 17.52T to KSh 18.82T ($135B to $145B).

Dell Technologies shares dropped 7%, Amazon fell nearly 5% and Alphabet more than 3%. The other four of the top six each lost less than Musk in dollar terms:

• Jeff Bezos fell by about KSh 1.43T ($11B) to KSh 48.08T ($370.4B).
• Larry Page and Sergey Brin lost a combined KSh 1.95T ($15B), leaving Page at KSh 34.64T ($266.9B) and Brin at KSh 31.89T ($245.7B).
• Michael Dell lost KSh 1.56T ($12B) and stands at KSh 30.71T ($236.6B).
• Mark Zuckerberg lost KSh 2.34T ($18B) and stands at KSh 28.75T ($221.5B).

What it means for African investors

The Forbes report covers only the six richest people and does not say how African fortunes fared. As Mwenendo earlier reported, Africa's largest private fortunes rest mainly on manufacturing, telecoms and mining rather than technology shares.

The wider signal is about sentiment. If investors keep questioning AI spending, global appetite for technology risk could cool, and that may matter to African start-ups seeking foreign capital. The next test is whether the companies behind the spending can show returns before the next round of earnings.