The art market's slim tilt toward no $150 million-plus sale by year-end stems from the sporadic nature of ultra-high-end consignments, even after 2025's record-setting Klimt portrait at $236 million and strong concentration of lots above $10 million. Trader sentiment reflects cautious positioning ahead of the typically quieter summer period, with momentum hinging on whether major collections surface for the fall auction calendar at Sotheby's and Christie's. Historical patterns show these records often cluster around exceptional single-owner sales rather than steady annual volume, leaving room for either a late blockbuster or continued restraint at the top end to decide the outcome.