As dodgy as our own stock markets are, it is unfathomable that anyone would invest in foreign stock markets.
This sudden surge in default risk on China's sovereign debt is very significant in the context of China's constant reassurance to the rest of the world that it is solid-as-a-rock (just as Larry fink, but don't ask George Soros). However, we do note that China CDS spiked to around 90bps in March 2020 (as the COVID crisis hit) and around 150bps in early 2016 (accelerating after China devalued the yuan in late 2015).
The question is, of course, where will this stop this time? How much 'risk' is China willing to take with its sovereign risk?