The New York Stock Exchange (NYSE) has released a statement on what happened the day after a significant trading hiccup at the opening of trade: “The fundamental cause was discovered to be a manual error involving the Exchange’s Disaster Recovery configuration at the start of day.”
They are only stating that. Simply said, it seems they tested a “disaster recovery configuration” without using the floor, and it did not reset.
The facts as we know them support it.
The order book that is used to generate the opening print appears to have frozen out Designated Market Makers (DMMs) and floor brokers, according to traders. In dozens of prestigious companies, no opening print was offered. “It appeared as though trading had begun.”