The Simple Truth About China’s Market

It’s not just clumsy trading rules that have made the mainland’s stocks so risky.
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“This is insane,” said Chen Gang, chief investment officer for Shanghai Heqi Tongyi Asset Management, on Jan. 7, the day stock trading in China lasted only 29 wild minutes before market circuit breakers shut it down. Unlike some would-be sellers that day, he says he unloaded all his firm’s equity holdings by the time the exit door closed. The circuit breakers, put in place just a few days before, called for an all-day trading halt if shares dropped 7 percent.

Those rules have taken much of the blame for China’s latest market chaos. The China Securities Regulatory Commission said they had a “magnet effect”—as shares fell, people may have rushed to get sell orders in while they still could, pulling prices down to the trigger point even faster. (Announcing last call to a bar full of drinkers tends not to encourage moderation, either.) The focus on poorly designed trading curbs may, however, distract from a less exotic source of risk: speculation.