Christie's reported $7.1 billion in total sales for 2025, while Sotheby's posted $6.1 billion, marking respective gains of 11% and 8% year-over-year. The momentum concentrated in two channels: trophy lots above $10 million and private treaty sales, which together accounted for more than half of combined revenue. Publicly disclosed results show Christie's closed 47 individual lots above the $10 million threshold, versus 34 at Sotheby's.
Private sales—transactions negotiated outside the auction room—represented $3.7 billion of the combined total, up 19% from 2024. Christie's private sales division alone contributed $2.2 billion, or 31% of house revenue, the highest proportion on record. The shift reflects persistent tax optimization and discretion preferences among single family offices and sovereign wealth allocators. Sotheby's private sales arm recorded $1.5 billion, with particular strength in Impressionist works and contemporary Asian art, categories where public valuations have compressed but private appetite remains.
The trophy lot performance matters because it signals renewed confidence in illiquid alternative stores of value during a year when traditional equity volatility averaged 18.4% on the VIX. Buyers paid $127 million for a Basquiat at Christie's Hong Kong in March, $89 million for a Monet at Sotheby's New York in May, and $64 million for a Rothko in London in October. All three cleared pre-sale high estimates by at least 15%, indicating bidding depth beyond anchor buyers. The houses also reported that 62% of lots above $5 million went to repeat clients, suggesting portfolio rotation rather than speculative entry.
Mid-tier lots between $500,000 and $5 million softened, with sell-through rates at 67% for Christie's and 64% for Sotheby's, down from 74% and 71% respectively in 2024. This bifurcation mirrors broader wealth concentration: ultra-high-net-worth individuals added $4.2 trillion in aggregate wealth in 2025, while mass-affluent cohorts saw flat or declining investable assets. The auction houses responded by reducing mid-tier evening sale inventory by 22% and shifting those consignments to day sales or private channels, preserving headline clearance rates.
Operators should monitor Q1 2026 consignment announcements, expected mid-February, for signals on seller confidence and trophy lot pipeline. Watch whether private sales as a percentage of total revenue holds above 25%, which would confirm structural channel migration. The houses face $1.8 billion in combined seller guarantees outstanding, concentrated in Impressionist and Post-War categories, with settlement windows extending through June 2026.
Christie's next major test arrives with its Frieze New York week sales in May, traditionally a bellwether for contemporary market depth. Sotheby's has pre-announced a single-owner Rockefeller estate sale for April with an estimated aggregate value above $300 million, the largest such offering since the Macklowe collection in 2022. Both events will clarify whether 2025's momentum reflects durable reallocation or temporary positioning ahead of anticipated monetary policy shifts.