A Citigroup office is seen at Canary Wharf in London, Britain May 19, 2015. REUTERS/Suzanne Plunkett It's looking bleak for traders right now.Thomson Reuters
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NEW YORK (Reuters) - Citigroup Inc third-quarter total markets revenue is running about 15 percent less than a year earlier when volatility was boosted by reactions to the Brexit vote and U.S. elections, Chief Financial Officer John Gerspach said on Monday at an investor conference.
Gerspach's outlook was similar to the 12 percent decline anticipated by Barclays analyst, and conference host, Jason Goldberg, in a preview for the event being held through Wednesday.

(Reporting by David Henry in New York; Editing by Chizu Nomiyama)