In what has been an unusual day for high-profile tech glitches, trading on the New York Stock Exchange was suspended for more than three hours before reopening Wednesday afternoon.
Activity was initially halted because it was "experiencing a technical issue that we're working to resolve as quickly as possible." In the hour before the NYSE began operating again, its president, Thomas Farley, told CNBC that it would open between 2:45 p.m. and 3 p.m., before its daily 4 p.m. close. It officially reopened shortly after 3:10 p.m.
NYSE's morning announcement of the suspension came several hours after United Airlines temporarily grounded its planes due to an "automation issue." There's no indication right now that the two issues were related.
Early Wednesday afternoon, the NYSE said on Twitter that the problem is "an internal technical issue and is not the result of a cyber breach." But there was some concern on the Hill about the glitch's origins. Florida GOP Sen. Bill Nelson told reporters after news of the suspension broke that "it has all the appearances of a cyberattack." He later elaborated on Twitter:
Three major computer malfunctions on same day give appearance of an attack, serve as reminder Congress must pass a cybersecurity bill— Bill Nelson (@SenBillNelson) July 8, 2015