Sotheby's holds a strong 81.5% market-implied probability of posting the higher 2026 sales total, driven by its record first-half performance of $4.4 billion alongside robust momentum across fine art, jewelry, and wine and spirits categories. Recent results reinforce this edge, including near-identical HK$956 million totals in Hong Kong that matched or exceeded Christie's and strong New York contemporary and single-owner sales in early October. While Christie's delivered a standout $289 million London evening sale during Frieze Week on the back of the record Peter Simon collection, traders appear focused on Sotheby's broader pipeline and historical strength in the year's final marquee weeks. Key upcoming catalysts include New York auctions and any late-year single-owner dispersals that could widen the gap.