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NEW YORK – The brief crash in Nordic markets on Monday was due to a single sell order placed by Citigroup, according to two sources familiar with the matter.
The flash-crash, which caused European shares to suddenly fall on a day of holiday-thinned trading activity, involved an erroneous calculation relating to a Nasdaq index involving Swedish companies, one source said. Citi declined to comment.
(Reporting by John McCrank; Editing by Chris Reese)
