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Paul Rickert's avatar

Claude Opus 4.8 disagrees with your numbers. It says:

"The US makes up roughly 60–65% of global stock market capitalization as of early 2026, by far the largest single share. Let me give you the rough breakdown of how the major markets compare.

The US sits around 60–65%. Behind it, the next largest are typically Japan (~5–6%), China (~3–4%, mainland and Hong Kong listings combined), the UK (~3–4%), and then France, India, Canada, Germany, and Switzerland each in the roughly 2–3% range. India's share has been climbing in recent years and now rivals or exceeds the major European markets depending on the index used.

A few things worth flagging given how the numbers get cited. The exact figure depends heavily on the index provider and methodology. The MSCI ACWI (which is free-float adjusted and excludes most frontier markets) tends to put the US near 63–66%. The broader FTSE All-World or total-market measures that include more of China's domestic A-shares pull the US share down somewhat. China is the big methodology swing factor because a large portion of its market is state-owned and not free-float, so float-adjusted indices understate its gross market cap considerably."

That 60-65% is in line with other numbers I have heard over the last year which is why I bothered to ask the AI.

Fred's avatar

You know my take on China … 🇨🇳

ps: what do you see on Alibaba online retail earnings?

I see modest growth last few quarters but must be missing something

Thanks Erik

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