View source for Tech companies and the size of the market

{{pubdate|1|September|2025}}

If you think there might be an AI bubble, but don't worry about it, even if it pops, how bad can it be? 

Here's one number: seven tech companies (NVIDIA, Microsoft, Google, Apple, Meta, Tesla and Amazon) are worth about 20 trillion together, representing a third of the value of the total US stock market.

For context: total subprime mortgages in 2008 were 1.3 trillion, total US mortgage debt was 10 trillion.

You have a 401k or have invested in index fonds? Your money is very likely significantly tied with the AI market. If you want that, that's fine. If you're worried it might be a bubble ---

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