The New York Stock Exchange just had a trading snafu

pulse

March 20, 2017 9:42 PM

The Big Board was unable to carry out a closing auction for a number of big-name exchange-traded funds on its NYSE Arca market, according to people familiar with the matter.

Traders work on the floor of the NYSE

The New York Stock Exchange just had a trading snafu.

NYSE suffered an outage on its Arca marketplace that meant it couldn't carry out a closing auction for a number of exchange-traded funds on Monday.

NYSE Arca Equities is currently unavailable in all Tape A, B and C symbols. All live orders will be cancelled. Additional information will follow as soon as possible."
4:37 p.m. — NYSE set

On March 20, 2017, the NYSE Arca Equities trading platform experienced a system issue resulting in a subset of symbols failing to conduct a closing auction or transition from the regular trading session to the late trading session at 4:00 p.m. The Exchange suspended trading in all symbols at approximately 4:13 p.m. and cancelled all open orders. In securities that failed to transition from the regular trading session to the late trading session, orders designated for the regular trading session may have executed after 4:00 p.m. The Exchange invoked its procedures for determining the Official Closing Price ("OCP") when the Exchange is unable to conduct a closing transaction in one or more listed securities due to a systems or technical issue. OCPs for NYSE Arca-listed securities were subsequently transmitted to the SIP, which can be found here.

The underlying cause of the disruption has been identified and remediated.

ETP Holders seeking to file a claim under NYSE Arca Equities Rule 13.2 are reminded that any claims for compensation in relation to an exchange system failure must be submitted to trading@nyse.com by 9:30 a.m. on March 21, 2017 in order to be eligible for consideration.

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