China's VIX Goes Dark as Government Clamps Down on Options
- State-run index compiler stopped updating the gauge Thursday
- Move is designed to curb options trading, people say
What Expect as China Markets Reopen After Break
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China stopped updating its homegrown version of the VIX Index, taking another step to discourage speculation in equity-linked options after authorities tightened trading restrictions last week.
State-run China Securities Index Co. didn’t publish a value for the SSE 50 ETF Volatility Index on its website Thursday. An employee who answered CSI’s inquiry line said the company stopped updating the measure to work on an upgrade. The move was designed to curb activity in the options market, said people familiar with the matter, who asked not to be identified discussing private information. It’s unclear when the index will resume.