Do you mean their market cap? Sure but that doesn’t equal their profits or cash reserves which are considerably less so NVIDIA couldn’t buy the 230 companies even if I wanted to
That’s a good point, which immediately makes me curious — how many of the smallest sp500 companies could nvidia outright purchase (or obtain a majority stake in)? It’s just a curiosity, not trying to demand an answer. I might look at it tomorrow if I have time
They can not, as Nvidia owns very little of its own stock.
It's the owners of the Nvidia stock who potentially could trade their Nvidia stocks for the other 230 companies stocks. But then they have no Nvidia stocks anymore, on the other hand.