Status

Post Mortem: Bats EDGX Options System Issue on December 12, 2016

December 12, 2016 16:57:43

Post Mortem: Bats EDGX Options System Issue on December 12, 2016

SCI System(s) Affected: Trading

Incident Description: System Disruption - At 15:11:43PM ET, EDGX Options experienced an issue related to processing Risk Management cancellation requests that resulted in a Matching Engine failure affecting trading in underlying symbol range HUM - IPAAZ. Initially, some Members may have experienced momentary rejects in underlying symbol range IPAB - PCLMZ as well.

All stuck orders were resolved by 16:16:51 PM ET.

Members Affected: All Members trading in impacted ranges.

Corrective Action: Bats has identified the issue as being related to a recently enabled performance configuration parameter. This parameter has been disabled until the root cause has been addressed and fully tested.

Bats Trade Desk
913.815.7001
[email protected]