CCB and Goldman Sachs slash brokerage valuations, profit forecasts after regulatory action on unauthorised cross-border trading.

The clampdown hits a route that Chinese investors use to trade U.S. and Hong Kong stocks, raising capital-control and ADR concerns...

Futu and Up Fintech shares fell 30-40% after China's CSRC imposed massive fines and barred mainland clients from opening new positions on offshore platforms.