The Four Horsemen of the Art Market

Charles F. Stewart, Steve Ivy, Bonnie Brennan, Mark Wilson
Photo-Illustration: Puck; Photos: Courtesy of Sotheby's, Courtesy of Heritage Auctions, Lucy North/PA Images via Getty Images, Courtesy of Phillips, Mark Peterson/Corbis via Getty Images
Marion Maneker
July 24, 2026

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Sotheby’s C.E.O. Charlie Stewart was understandably chuffed about the results for the first half of 2026 when I got on a call with him last week. Indeed, Sotheby’s 59 percent rise in sales from 1H25 to 1H26, as I pointed out to Inner Circle subscribers on Wednesday, marked the takeoff phase of a new auction cycle across the fine art and collectibles landscape.