[Ed. – Hmm. Maybe it’s spontaneous. Maybe not.]
CME Group says it had to intervene with multiple 10-second pauses to prevent a steeper decline in equity futures.
Speculation for the swell in volume and plunge in futures included the news of the arrest of the CFO of the Chinese telecom company Huawei.
Traders also speculated that the selling could be attributed to a large fund or funds liquidating a position.
The stock market sell-off on Thursday began with a mysterious overnight plunge in equity futures that caused the CME Group to halt trading in several intervals.