BATS Global Markets' New York-based BYX Exchange is operating smoothly after experiencing a glitch last week that resulted in member order entry disconnects and internal multicast network drops.
The exchange had an internal disruption at 9.44am ET on Thursday, due to a bug in a network vendor’s software used to ensure redundancy between a pair of switches. BATS would not provide information on the vendor due to internal disclosure policy.
BATS shifted operations from the primary data centre in New Jersey to a secondary site in Chicago, and trading resumed at 12.40pm until end of day. During this time, BATS’ larger US exchange BZX continued operating normally. On Friday, the BYX Exchange operated without incident.
BYX Exchange accounts for about 2% of US trading volume. On the day of the glitch, it fell to 0.10%, before going back up to 2%.