Duplicate trade confirmation triggers SGX suspension

UPDATE (9.18PM): SGX confirmed that it will not resume trading for the day.

UPDATE (3.26PM) : The market will resume at 4pm later today (July 14) and will open as usual on Friday (July 15), SGX said in its latest tweet at around 3.24pm.

It also confirmed that order and trade executions are accurate.

3.1 SGX confirms that order and trade executions are accurate.

— Singapore Exchange (@SGX) July 14, 2016

3.2 The market will resume trading at 1600 hours and open per normal on 15 July 2016.

— Singapore Exchange (@SGX) July 14, 2016

SINGAPORE - Earlier today (July 14), the Singapore Exchange temporarily suspended trading at 11.38am "due to duplicate trade confirmation messages being generated". As such, the securities market was put into adjust phase.

1.6 The SGX securities market was put in adjust phase at 1138 hours due to duplicate trade confirmation messages being generated.

— Singapore Exchange (@SGX) July 14, 2016

"No duplicate trades were executed and the market remained orderly. Message reconciliation is underway and we expect the market to resume trading at 1400 hours," it said.

However in a Twitter update just before 2pm, SGX tweeted: "Member reconciliation files are being generated and the securities market will not resume trading at 1400 hours."

2.1 Member reconciliation files are being generated and the securities market will not resume trading at 1400 hours.

— Singapore Exchange (@SGX) July 14, 2016

During this downtime, SGX said that orders can be put in, taken out or amended. However, they will be matched only when the market reopens.

In its latest tweet, SGX said it will advise the market resumption time once member reconciliation is completed.

maryanns@sph.com.sg