Helly Nahmad poses in front of a Picasso. (Photo by Arnaldo Magnani/Getty Images)

Pocket Aces: Tycoons, Celebrities, Oligarchs and Algorithms

Art dealer and collector Hillel (“Helly”) Nahmad, who runs the Helly Nahmad Gallery inside the Carlyle Hotel on Madison Avenue, was named in a sweeping federal criminal indictment in which it is alleged that the 34-year-old Mr. Nahmad joined with Russians named Alimzhan Tokhtakhounov and Vadim Trincher to launder millions of dollars.

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