NEW YORK, NY - AUGUST 11: A trader works at his computer before the closing bell on the floor of the New York Stock Exchange (NYSE), August 11, 2016 in New York City. For the first time since 1999, the S&P 500 Index, Dow Jones Industrial Average and Nasdaq Composite Index all set record highs on the same day. (Photo by Drew Angerer/Getty Images)

The logo of technology company Nvidia is seen at its headquarters in Santa Clara, California February 11, 2015. REUTERS/Robert Galbraith/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE - SEARCH "BUSINESS WEEK AHEAD AUG 8" FOR ALL IMAGES?

The logo of technology company Nvidia is seen at its headquarters in Santa Clara, California February 11, 2015. REUTERS/Robert Galbraith

(FILES) This file photo taken on September 11, 2013 shows the logo of social networking website 'Twitter' displayed on a computer screen in London. Tweets regarding Twitter's pending demise are greatly exaggerated. Despite a rumor to the contrary, the global one-to-many messaging service on August 11, 2016 had no plans to shut down any time in the foreseeable future due to the bane of cyber bullying.Twitter assured AFP that there is no truth at all to the gossip. / AFP PHOTO / LEON NEALLEON NEAL/AFP/Getty Images

(FILES) This file photo taken on June 2, 2016 shows Ed Bastian, CEO of Delta Airlines as he takes part in a group debate at the International Air Transport Association's (IATA) annual general meeting (AGM) in Dublin, Ireland. Delta Air Lines chief executive Ed Bastian took responsiblity for a computer glitch that grounded its fleet this week, according to an interview published August 11, 2016. "This is our responsibility," Bastian told the Wall Street Journal. "The buck stops here." / AFP PHOTO / Paulo Nunes dos SantosPAULO NUNES DOS SANTOS/AFP/Getty Images

(FILES) This file photo taken on February 11, 2015 shows President and editor-in-chief of the Huffington Post Media Group Arianna Huffington during an event along with London mayor to promote British technology companies to the US market in New York. Arianna Huffington, founder of the online Huffington Post news site that has become a global phenomenon, announced August 11, 2016 she was stepping down to launch a nonprofit group focused on health and wellness. Greek-born Huffington, who launched her original American website in 2005 and sold it to Internet giant AOL in 2011, said the new venture called Thrive Global aims "to change the way we work and live by ending the collective delusion that burnout is a necessary price for success." / AFP PHOTO / JEWEL SAMADJEWEL SAMAD/AFP/Getty Images

The Delta baggage area of the terminal is empty after Delta Air Lines' computer systems crashed on Monday, grounding flights around the globe, at Hartsfield Jackson Atlanta International Airport in Atlanta, Georgia, U.S. August 8, 2016. REUTERS/Tami Chappell

LOS ANGELES, CA - AUGUST 10: ?Strategist & Connector for Entertainment Business, Technology & Philanthropy, for ?AOL, Jim Wiatt (L) and guests attend the special event for UN Secretary-General Ban Ki-moon hosted by Brett Ratner and David Raymond at a Private Residence on August 10, 2016 in Los Angeles, California. (Photo by Charley Gallay/Getty Images for Arise Pictures)