Deutsche Börse is blaming third party software for an operating system error that shut down trading on the Frankfurt exchange during the early afternoon.
Trading on Deutsche Börse's Xetra platform was resumed at 14.30, following an error in a third party network program which links the host computer with dealing desks that shut down the system at 12.15. The same bug also impaired communication with the external data dissemination system CEF, which did not disseminate any data during the shutdown. According to Deutsche Bourse, the new Xetra release that was introduced on Monday was not the reason for the disturbance.
The Xetra system was back in service again at 13.00 after restarting and participants were given time to review and amend orders. This was followed by an auction, and the resumption of continuous trading at 14.30.
The interruption did not impair data integrity, says the Börse. "All orders were available after the system restarted," says the Exchange.