Christie's and Sotheby's completed 2025 with combined public auction sales climbing above year-prior totals, driven by trophy lot pricing that returned buyer confidence to the high end of the art market. Sotheby's November sale of Gustav Klimt's *Dame mit Fächer* at $236.4 million became the most expensive work of modern art ever sold at auction, while Christie's Hong Kong secured $160 million across its November sessions. Both houses reported accelerated private sales activity in the fourth quarter, a channel that now accounts for roughly 35% of total transaction volume across the duopoly.

The rebound follows twenty-four months of contraction. Aggregate auction house sales fell 18% in 2023 and another 11% in 2024 as rising rates compressed discretionary capital deployment into collectibles. Sotheby's — now privately held under Patrick Drahi's BidFair USA — did not release consolidated financials, but disclosed that private treaty sales grew 22% year-over-year in Q4 2025. Christie's, controlled by Groupe Artémis since 2022, published similar directional commentary without hard figures. What matters: sell-through rates at marquee evening sales stabilized in the 72-78% range during the second half of 2025, up from the 58-64% trough observed in late 2023.

Sixteen auction records set in November alone — spanning Old Masters, Impressionist works, and contemporary Asian art — suggest that ultra-high-net-worth buyers are rotating back into hard assets as inflation expectations moderate and currency hedges become less attractive. The Klimt sale, executed in New York, drew bids from four phone clients and closed at 1.6x the high estimate. Christie's Hong Kong results were anchored by strong bidding from mainland Chinese buyers, a cohort that had been conspicuously absent from major sales since mid-2022. Regional allocation patterns are shifting: Hong Kong accounted for 28% of Christie's total Asia-Pacific sales in 2025, up from 19% two years prior.

Allocators should track three follow-on signals. First, Sotheby's spring 2026 Impressionist sale in May will test whether the Klimt result was singular or part of a sustained repricing cycle for trophy works. Second, private sales data for Q1 2026 — typically disclosed in mid-March — will clarify whether institutional and family office buyers are expanding exposure or merely rotating existing collections. Third, watch for any credit facility amendments at Sotheby's; Drahi's holding company carries $9.1 billion in net debt, and refinancing terms due in late 2026 will reveal lender appetite for art-collateralized credit in a normalized rate environment.

The return of momentum to the auction houses is not demand recovery. It is precision capital finding scarce supply at the apex of the market, while mid-tier lots remain oversupplied and underpriced.