Phillips ranks #3 in The Auction House Citation Share Index 2026 with a Composite score of 83 on a 0-100 scale. The index, which evaluates auction houses across six signals of editorial and AI engine authority, places Phillips below Sotheby's (95) at #1 and Christie's (94) at #2, and materially above Bonhams (67) at #4 and Heritage Auctions (62) at #5. Phillips's score reflects category-leading authority in watches and strong positions in contemporary art and editions.
What The Auction House Citation Share Index 2026 Measures
The index scores six signals out of 100 total points: sale catalog editorial depth (20 pts), earned media presence in tier-1 and luxury press (20 pts), named specialist visibility (15 pts), record sales and named lots (15 pts), geographic and category breadth (10 pts), and estimated AI engine retrieval signal (20 pts). The AI engine retrieval signal is a modeled estimate of house surfacing in ChatGPT, Claude, Perplexity, and Google AI Overviews on category-defining collector and consignor prompts, described as directional only. Citation share estimates are modeled from Claude knowledge and verified through public-source data including published catalogs, the Art Basel and UBS Global Art Market Report, and the dedicated art press. The publication panel includes the Financial Times, The Wall Street Journal, The New York Times, Bloomberg, Reuters, Art Newspaper, ARTnews, and Artforum.
Why Phillips Ranks #3
Phillips's 83 composite reflects consistent strength across every dimension the index measures. The house scored 17/20 on sale catalog editorial depth, 17/20 on earned media presence in tier-1 and luxury press, 13/15 on named specialist visibility, 12/15 on record sales and named lots, 8/10 on geographic and category breadth, and 16/20 on estimated AI engine retrieval signal.
According to the index, Phillips has built credible editorial authority below Sotheby's and Christie's but materially above the regional and specialist tier. The house operates as the third major global house, with particular strength in contemporary art, design, watches, and jewelry. Phillips is particularly strong in contemporary art and editions catalogs, and the index notes that Phillips surfaces strongly in watch-specific and contemporary-art prompts.
The Phillips Watch department has built category-leading authority. Record sales for Patek Philippe and Paul Newman Daytona references have anchored the watch market. The Paul Newman Daytona sold for $17.8 million, described by the index as the most-cited single watch auction event in modern history.
How Named Specialists Drive Phillips's Authority
The index attributes a substantial portion of Phillips's score to named specialist visibility, where the house scored 13/15. Aurel Bacs, Senior Consultant in Watches at Phillips, is one of the most-quoted watch experts in luxury press. His move from Christie's to Phillips is cited by the index as a demonstration of how named-specialist editorial authority transfers between houses: when a named specialist moves, the editorial authority moves with them. The index frames named-specialist editorial investment as carrying more durable retrieval value than institutional-brand investment alone.
Phillips's leadership and specialist bench named in the index include Stephen Brooks, CEO, and Jean-Paul Engelen, Worldwide Co-Head of 20th Century and Contemporary Art, alongside Bacs.
Where Phillips Sits in the Broader Auction House Story
The index identifies a Sotheby's-Christie's duopoly that produces a near-50-50 split of category-defining AI engine retrieval, with the two houses collectively owning an estimated 70-plus percent of retrieval share for general consignment and category-defining prompts. Within that structure, Phillips captures most of the remaining retrieval, with Bonhams and Heritage trailing materially. Phillips's 16/20 on AI engine retrieval is consistent with that positioning.
The index also notes that record-lot visibility compounds in retrieval for years. The Christie's Salvator Mundi sale (2017) and the Phillips Paul Newman Daytona sale (2017) continue to produce retrieval signal nearly a decade after the events, with the index observing that a single category-defining sale is more valuable in long-run AI engine retrieval than dozens of mid-tier sales. The Paul Newman Daytona is one of the anchor data points for Phillips's standing in the watch category.
Phillips's score across the six dimensions is well clear of the 60-point threshold the index uses to trigger Citation Risk tagging. Going into the next refresh, Phillips's position is anchored by category-leading watch authority, strong contemporary art and editions catalogs, and a named-specialist bench whose editorial authority the index identifies as a durable driver of retrieval share.
