Every May and every November, three buildings in Manhattan run a play that has barely changed in fifty years. Christie’s in Rockefeller Center, Sotheby’s on the East Side, and Phillips on Park Avenue — each opens its doors for the spring marquee, what the trade simply calls “the fortnight.” Roughly ten days of evening sales and adjacent day sales that, in a healthy year, do more than two billion dollars of business between them and reset the price ceiling for half the artists in the secondary market.
Watch the cycle long enough and you start to see that what happens on sale night — the gavel, the chandelier bid, the standing ovation when a Basquiat clears nine figures — is the visible thirty seconds of a process that has been running for nearly two years.
This is what that process actually looks like.
The Estate Business Is the Real Business
The most expensive lot in any marquee sale is almost never the result of someone “deciding to sell.” It is the result of someone dying.
Specialists at the major houses talk openly about this. Christie’s, Sotheby’s, and Phillips run dedicated trusts-and-estates teams — Christie’s calls its team Estates, Appraisals & Valuations; Sotheby’s runs Trusts, Estates & Appraisals; Phillips operates a comparable function inside Private Client Services. These teams do not chase art. They chase law firms, family offices, private bankers, and the IRS. The reason is simple: when a major collector dies, the executor needs an appraisal for federal estate-tax purposes, and the IRS effectively requires that appraisal to come from a qualified appraiser. Whichever house writes the estate appraisal has a structural advantage in winning the consignment that follows, sometimes by twenty-four months.
This is why every important single-owner sale of the last decade has been an estate. The Macklowe Collection, sold at Sotheby’s across two evenings in November 2021 and May 2022 for a combined $922 million, was a divorce-court-mandated liquidation — a different mechanism, but the same dynamic of an event forcing the consignment. The Paul Allen Collection at Christie’s in November 2022, which made roughly $1.62 billion across two consecutive evenings, was an estate sale. The Ann & Gordon Getty Collection at Christie’s, which crossed $180 million across multiple sessions in October 2022, was an estate. S.I. Newhouse at Christie’s in 2019, the David Rockefeller estate at Christie’s in 2018 ($832 million across the week), the Anne H. Bass estate at Christie’s in 2022 — every benchmark sale of the past decade traces back to a death, a divorce, or a tax event.
The lesson, if you collect at the top of the market, is that the auction houses are not waiting for you to call. They are waiting for the call from your attorney.
The Cataloging Year
Once a major estate consignment is locked, the work compresses into about ten months of cataloging.
A specialist — typically the department head or a senior international director, depending on the property — goes to the residence, sometimes a storage facility, and produces a working list. Provenance research begins immediately, often a year out. For an Impressionist or modern picture, the house wants documented history back to the artist’s studio, exhibitions, prior auction appearances, and any literature references. For a Picasso, that means Christian Zervos’s catalog raisonné; for a Monet, Daniel Wildenstein’s; for a Warhol, the Andy Warhol Foundation’s catalog raisonné project. A picture without a clean provenance line, or with a gap in the years between 1933 and 1945, will get reviewed by the house’s restitution research team before any decision is made about whether it can be offered at all. Sotheby’s restitution department was founded in 1997. Christie’s followed shortly after. Both will quietly decline to sell pictures they cannot clear.
Condition reporting runs in parallel. The conservator’s notes — relined canvas, areas of inpainting, evidence of past restoration — become part of the lot file. Buyers’ representatives request these reports weeks before the sale; the report is also what stands behind the house in the event of a post-sale dispute.
Estimates are usually settled in the final ninety days. The number printed in the catalog — “$15,000,000–20,000,000” — is the result of a triangulation between recent comparables, the consignor’s expectations, the specialist’s read of demand, and what the house is willing to put on its own balance sheet. Which brings up the part of the process the public rarely sees.
The Guarantee Stack
Every major lot in a marquee evening sale today is, in practice, pre-sold.
The mechanism is the third-party guarantee, often called the irrevocable bid. The house identifies a collector — a known buyer, a deep-pocketed institution, sometimes a dealer acting for a client — who is willing to commit, in writing and before the sale, to purchase the lot at a minimum price if no one else bids higher. In exchange, that guarantor receives a financing fee (a percentage of the hammer price, or a share of the upside above their bid) regardless of whether they end up winning the work. The arrangement is disclosed in the catalog — Sotheby’s marks guaranteed lots with a small symbol; Christie’s uses a similar marker; Phillips publishes its conditions on the back pages — but the identity of the guarantor is almost never made public.
For the consignor, the guarantee converts a speculative event into a known floor. For the house, it transfers the financial risk of an unsold lot off its own books and onto a third party. For the guarantor, it is a structured trade: floor price secured, upside shared, with the option to bid live and become the actual buyer if the room cooperates. The Paul Allen sale at Christie’s in 2022 was, by most counts, almost entirely guaranteed — which is part of why it ran so smoothly and why the result felt inevitable rather than electric. Compare it to a non-guaranteed lot that fails on the night, where the auctioneer’s voice tightens and the hammer comes down on a buy-in.
Once a buyer learns to read the guarantee symbols in a catalog, half the drama of a sale night becomes legible in advance.
The Catalog and the Exhibition
The printed catalog is no longer the primary sales tool — most serious bidding happens after a private viewing or an internal phone walk-through — but the catalog still functions as the official record. A Christie’s evening catalog runs three hundred to four hundred pages, four-color, with full-page essays on hero lots written by specialists or, for the most important properties, by outside scholars. Sotheby’s matches the production. Phillips, smaller and more focused on twentieth- and twenty-first-century work, runs lighter but no less polished.
The public exhibition is where the room is built. Each house clears its galleries roughly ten days before the sale and stages the lots like a museum show. At Christie’s, the Rockefeller Center exhibitions are open seven days. At Sotheby’s, the York Avenue galleries run a similar schedule. The walks-through are not really for the public — they are for the buyers who fly in from Asia and Europe and walk through with their advisors, often making the actual purchase decision in front of the picture. The cocktail reception the Tuesday before sale night is, in practice, a final read of which clients are circling which lots. By Thursday, the auctioneer and the head of department know within a margin who is likely to be on the phones for each major number.
Sale Night
On the night, the room is theater that has already been rehearsed.
The auctioneer, almost always the chief auctioneer of the house — Adrien Meyer for Christie’s globally, Phyllis Kao for Sotheby’s New York evening sales as of recent seasons, Henry Highley for Phillips — has a book of bids in front of them. The book contains every absentee bid, every reserve, every guarantee floor, and, crucially, the names of the specialists who will be on the phones for which clients. Phone banks line one wall — twenty, thirty specialists each holding a single client. The biggest bidders are almost never in the room. They are in Hong Kong, Geneva, Riyadh, Aspen, on a yacht off Capri, on a phone with someone whose entire career is built on knowing exactly when to nod.
The pacing is deliberate. The auctioneer opens lots below the low estimate to draw the first bid, then walks the price up the catalog in increments the house has practiced — five hundred thousand, then a million, then two million on a hero lot. The chandelier bid — a bid called by the auctioneer to nobody, off the chandelier, to push the price up to the reserve — is legal in New York under state auction law, but only below the reserve. Once the reserve is met, every increment must be from a real bidder. A skilled auctioneer can extract another ten percent from a sale by managing the increment rhythm, which is why the chief auctioneers of the three houses earn what they earn.
A hero lot might take three to five minutes. Most lots take ninety seconds. A two-and-a-half-hour evening sale moves fifty to seventy lots. The big numbers cluster in the middle third — open with a strong but not landmark lot to warm the room, place the hero in lots fifteen through thirty, finish with a few solid pictures that ride the energy down. Sales catalogs are not random.
The Day After
The morning after a marquee sale, the press release lands by 7 a.m. Eastern. The number quoted is the “sale total with buyer’s premium” — meaning the hammer price plus the commission the buyer pays on top, which at the major houses runs roughly 26 percent on the first slice and steps down. So a $100 million hammer becomes a $126 million headline. Watch this when you read coverage: the headline number is buyer’s premium-inclusive; the consignor receives the hammer minus the seller’s commission.
The wires pick it up. The dealer community starts to recalibrate private-sale asking prices that afternoon. Insurance valuations on similar work move within a week. By the time the day sales finish on Thursday and Friday, the cycle has reset, and the specialists are already back on planes for the next consignment.
What the Marquee Means for the People Who Are Not Bidding
For the collector who is not buying — who is, instead, looking at a top-of-market result on a comparable picture and trying to figure out what their own holdings are worth — the May fortnight is the most useful set of data points of the year.
Three things to read from any major sale:
The first is the spread between estimate and hammer. A picture that sells well within its estimate range tells you the house’s number was right and the market is in balance. A picture that explodes above its high estimate tells you depth of demand at that level. A picture that fails — bought in, no bid, withdrawn — tells you the most important thing of all, which is where the ceiling actually is for that artist this season.
The second is the bidder geography. The houses do not publish names, but they do publish, in their post-sale press releases, the rough breakdown of underbidders by region. When sixty percent of phone bidders on twentieth-century Western pictures are calling from Asia, that is a structural fact about where the next decade of demand is coming from.
The third is the guarantee patterns. A sale where eighty percent of the lots are pre-guaranteed is a different market from a sale where forty percent are. Heavier guarantee usage typically signals consignor caution — the market is asking for downside protection — which usually appears before, not after, a soft season.
The Borro Angle
Most of what gets sold in a marquee evening sale was purchased somewhere else, earlier, by someone who held the picture for ten or twenty or fifty years. The auction is only one of three legitimate exits — the other two are private sale through a dealer or a house’s private-sales department, and asset-backed lending against the work itself.
That third option is the one most owners do not think about until they need it. A piece of museum-quality art, a watch from a single estate, a parcel of jewelry, a classic car kept in proper condition — these are illiquid assets that, in the year between consignment and sale, are doing nothing but appreciating quietly and costing the owner in insurance and storage. A short-duration loan against the piece, structured properly, can fund the next acquisition, the tax bill, the buy-in price for a partnership, or the gap before an estate settles, without ever leaving the room where the asset is kept.
The marquee fortnight is the loudest two weeks in the calendar. The quieter eleven and a half months are where most of the actual financing decisions get made.
Borro’s specialty has always been that quieter side of the market — short-term lending against luxury assets, structured for owners who would rather borrow against the asset than sell it through one of the three buildings on a Tuesday night in May.
The auction houses run the cycle. The owners decide whether to enter it.


