There was a futures market margin call, according to standard procedures, at 10:00 a.m.
There was a stock options market margin call, according to standard procedures, at 10:05 a.m.
Hongkong Clearing, according to standard procedures, will mark to market broker participants' open positions in the stock market at 11:00 a.m. and 4:00 p.m.
HKEx will continue to monitor the markets closely and will continue to take appropriate risk management measures.
Investors are reminded that trading in the seven Nasdaq stocks traded under the Pilot Programme and the two iShares, iShares MSCI South Korea Index Fund and iShares MSCI Taiwan Index Fund, has been suspended until further notice.
Investors are also reminded to exercise caution when trading in the markets.
