The US Gets Bigger While China Gets Smaller By Bespoke. Below we provide a table showing the percentage of world market cap that each country's equity market currently makes up. We also show where the reading stood at the start of 2011 as well as its change since then.
As shown, the US stock market currently makes up 32.21% of world market cap. This is up 2.53 percentage points since the start of 2011 when the US made up 29.68% of world market cap.
Here are the market shares of leading stock exchanges:
Source: Bespoke Group