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It's unclear what impact the trading in the e-minis had on stock prices during the plunge, but regulators have scrutinized futures trading because the sharp decline in that market preceded the dive in the broader U.S. equities market.
The CME document shows that during the sell-off and subsequent rally, other active traders in e-minis included Jump Trading, Goldman Sachs Group Inc, Interactive Brokers Group Inc, JPMorgan Chase & Co and Citadel Group.
During the 20-minute period, 842,514 co