NYSE Outage Halts Trading in 216 Stocks
November 12, 2012
The New York Stock Exchange said it would not resume trading in 216 stocks, ranging from The Travelers Companies to El Paso Electric, before the end of trading Monday.
Trading was halted by a “matching engine outage” associated with the scheduled transition of the 216 symbols onto a new technical platform.
This transition scheduled for Monday is part of a migration of the engines of NYSE and NYSE MKT, once known as the American Stock Exchange, to NYSE Euronext’s Universal Trading Platform.
Trading stopped in the 216 symbols at about 9:58 a.m. this morning. The hitch involved a server at the firm’s $250 million data center in Mahwah, N.J., which now houses all primary operations of NYSE exchanges. The issue did not resolve itself when the NYSE began using a backup server, said Rich Adamonis, senior vice president of corporate communications at NYSE Euronext.
Roughly 800 of 3,800 listings have been moved over to the new platform, Adamonis said.
The exchange operator said it “anticipates a normal trading day in all securities for tomorrow,” indicating that it expects to resolve the server issue by morning.
Adamonis said trading in the stocks continued off the New York Stock Exchange on other markets, such as the BATS and Direct Edge exchanges, that are active in NYSE-listings.
Last Monday (Nov. 5, 2012), the NYSE told its members was “experiencing an issue with its OpenBook feed for a subset of symbols” that were being migrated to the same platform. Some “book state delta messages” may not be properly published, it told its members in a Market Status message at 10:33 a.m.