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Markets · Themes · Cross-sector

Exit depth: who buys when you sell

Every market page carries a Liquidity line and an Exit depth block. This page reads them together: by what route a holding is sold, how often that route is open, what a round trip costs, and who is on the other side when nobody else is. Fifty-one markets, five kinds of door.

Theme · Cross-sectorTouches all 51 market briefs; worked examples from Gold, Fine Wine, Art, Polished Diamonds, Rare Whisky Casks
Scope
The route out of each of the 51 markets covered, as described on its page
Deepest
Gold, silver, oil, copper, cocoa, coffee: a published price and a counterparty every trading day
Shallowest
Frankincense, saffron, Québec maple syrup, a lab-grown stone: no route, or one buyer at its own price
Data as of
29 October 2026

This is a thematic page. It carries no Market Snapshot ratings; the Liquidity line and Exit depth block on each sector page remain the record. Where this page quotes one, the sector page is the source.

IWhat exit depth measures

Liquidity, on the market pages, answers one question: whether a holding can be sold, to whom, at a knowable price. Exit depth breaks that into parts. The route is the mechanism a seller actually uses. The calendar is how often that mechanism is open. The spread is the gap between what a buyer pays on the way in and what a seller receives on the way out, including every fee between. The counterparty is who is bidding when the seller needs to sell, not when the seller would like to.

The four move together but not in step. Fine wine has a price every day and a spread that is small, but the venue trades only between professionals, so a private holder exits through a merchant. 13 A natural pearl strand has a counterparty with very deep pockets and a route that opens perhaps once a decade. 23 A whisky cask has a broker's quote whenever the broker answers the phone, and the broker is often the firm that sold the cask. 18

The pattern that recurs across the register is that depth is a property of the unit, not the sector. A fine troy ounce, a case of a named vintage in bond, a numbered Parmigiano wheel and a slabbed coin against a published bid all have a buyer at a price; a stone, a painting, a share in a stallion and a cask of new-make do not until a buyer appears. Where a market has a standard unit the door is open most days; where every holding is its own unit the door opens when the calendar or the counterparty says so.

IIFive kinds of door

Every Exit depth block on the market pages describes one of five routes. The names below are this page's; the descriptions are drawn from the sector pages.

DoorHow it worksWho is on the other sideOpenMarkets
BenchmarkA published price set by trades or a regulated auction; a dealer, exchange or ETF stands ready at or near itBullion bank, clearing member, fund market-makerEvery trading dayGold, Silver, PGMs, Copper, Oil & Gas, Cocoa, Coffee, Uranium (trust units)
Price listA trade platform or published bid sheet gives a price; access is through a member, merchant or licensed buyerMerchant, dealer, wholesaler quoting against the listDaily to weekly, through an intermediaryFine Wine, Champagne, Port, Coins, Parmigiano Reggiano, Olive Oil, Polished Diamonds (asking prices only), Rough Diamonds (trade only)
Calendar auctionConsignment to a sale held on fixed dates; the price is discovered on the day by whoever attendsThe one or two underbidders present; sometimes a guarantorMonthly to twice a year; once a year for the rarestArt, Old Masters, Classic Cars, Coloured Gemstones, Signed Jewellery, Pearls, Jade, Rare Books, Stamps, Fossils, Scotch and Japanese Whisky (bottles), Cigars, Vintage Guitars, Handbags, Watches, Racehorses, Falcons, Bluefin Tuna, Wagyu, Tea
CounterpartyPrivate sale to a dealer, broker, operator or syndicate, usually the one who sold the asset; price is their quoteThe originating seller, a trade buyer, or a listed company by proxyOn request, at the counterparty's priceRare Whisky Casks, Breeding Stallions, Rare Earths, Oud, Pu-erh Tea, Caviar, Dates, Truffles, Vanilla, Manuka Honey, Lab-Grown Diamonds (equity only)
NoneNo vehicle and no holding; the product is turned over within a season, or sold to an administered buyerAn exporter, a marketing board, nobodyNot applicableFrankincense, Saffron, Maple Syrup (Québec bulk), a lab-grown stone held as a stone

Several markets have two doors. Scotch whisky bottles sell at monthly auction, casks through a broker; polished diamonds have a trade network listing 1.7 m stones at asking prices and an auction route for stones over a threshold; wagyu, bluefin and tea have an auction for the product and listed equity for the capital. The register in Section III lists the route a private holder would most plausibly use.

IIIThe register, market by market

Route, calendar and the Liquidity line as each sector page states them. Liquidity is quoted, not re-rated. Each row links to its page, which carries the sources.

MarketDoorRoute a private holder usesOpenLiquidity (sector page)
GoldBenchmarkBullion bank or dealer at the LBMA Gold Price; ETF shares; COMEXDailyHigh
SilverBenchmarkDealer at the LBMA Silver Price; ETFs; COMEXDailyHigh
Platinum group metalsBenchmarkDealer at the LBMA Platinum or Palladium Price; NYMEX; ETFs. Rhodium: dealers only, no benchmarkDailyHigh
CopperBenchmarkClose or roll LME or COMEX; ETF unitsDailyHigh
Oil & GasBenchmarkICE Brent, NYMEX WTI, Henry Hub futures; futures-based ETFsDailyHigh
CocoaBenchmarkClose or roll ICE New York or London futures; a few ETCsDailyHigh
CoffeeBenchmarkClose or roll ICE arabica or robusta futures; a few ETCsDailyHigh
UraniumBenchmarkSell Sprott Physical Uranium Trust units on the TSX; Yellow Cake in London. The trust does not redeem for metalDaily, at a discount or premium to metalMedium; spot thin, term deep
Fine WinePrice listMerchant onto Liv-ex (professionals only); auction; private saleDaily, through a merchantMedium
ChampagnePrice listMerchant onto Liv-ex; merchant buy-back; auction; iDealwine for grower labelsDaily, through a merchantMedium
PortPrice listSpecialist merchants and brokers for cases in bond; Liv-ex via a member; auction inside mixed wine salesDaily, through a merchantMedium
CoinsPrice listHeritage (weekly online, 200,000+ lots a year), Stack's Bowers, GreatCollections; dealers bidding on the CDN GreysheetWeekly; sight-unseen for certified coinsMedium; common certified coins High
Parmigiano ReggianoPrice listWholesaler, ageing house or packer at the Parma Borsa Merci price for the maturity; a bank's warehouse subsidiary if pledgedWeekly price; trade buyers onlyMedium, trade only
Olive OilPrice listBulk to a bottler or cooperative at the weekly origin price; grove as farmland; Deoleo equityWeekly price; oil within the campaignMedium
Polished DiamondsPrice listDealers and RapNet (asking prices, trade members); consignment to a jeweller; online buyers; auction above a thresholdOn request; dealer bid well below listMedium; wide spread
Rough DiamondsPrice listSecondary rough market in Antwerp, Dubai or Surat; tenders open to Kimberley Process registrants onlyTen sights a year; tenders on a calendarLow; trade buyers only
ArtCalendar auctionConsignment to Christie's, Sotheby's, Phillips, Bonhams or a regional house; private sale; back to the originating galleryTwo main seasons a yearMedium (auction); Low (private)
Old MastersCalendar auctionOld Masters sales: London July and December, New York January and May, Paris June; Dorotheum; dealersFive or six sale weeks a yearLow
Classic CarsCalendar auctionLive auction on a fixed calendar (RM Sotheby's, Gooding, Bonhams, Broad Arrow); online auction below about $500k; dealer or sealed bidMonterey, Scottsdale, Paris, Goodwood; online weeklyMedium
Coloured GemstonesCalendar auctionGeneva, Hong Kong and New York jewellery sales for stones over about $50,000, each with a fresh laboratory report; dealers belowTwice a year per cityLow
Signed JewelleryCalendar auctionMagnificent Jewels in Geneva (May, November), Hong Kong, New York; the houses themselves buyTwo seasons a yearMedium
PearlsCalendar auctionNatural: Geneva, Hong Kong, New York jewellery sales with a report confirming natural origin. Cultured: wholesale sealed-bid sales, trade onlyNatural strands surface once a decade or lessLow
JadeCalendar auctionHong Kong sales with a Hong Kong Jade & Stone Laboratory or GIA report; Hong Kong and Guangzhou dealers for the restA few times a year, Hong Kong onlyLow
Rare BooksCalendar auctionBooks and manuscripts departments for lots over about $10,000; specialist houses; dealersSeveral sales a year per houseMedium; top manuscripts Low
StampsCalendar auctionSpecialist houses (Siegel, Spink, Stanley Gibbons, Corinphila, Feldman) with expertising certificates; dealersRarities once a decade; the 1c Magenta sold in 1970, 1980, 2014 and 2021Low
Fossils & MeteoritesCalendar auctionSotheby's New York natural-history sale each July; private sale to a museumOnce a yearLow
Scotch Whisky (bottles)Calendar auctionMonthly online auctions; specialist retailers who buy or consign; Sotheby's and Bonhams for the rarestMonthlyMedium (bottles); Low (casks)
Japanese WhiskyCalendar auctionThe same monthly online auctions; Hong Kong sales for trophy lots; specialist retailersMonthly; thin at the topMedium
CigarsCalendar auctionSpecialist auctions (C.Gars, Online Cigar Auctions); dealers who buy outright. No route for US sellers of Cuban productSeveral sales a yearLow
Vintage Guitars & InstrumentsCalendar auctionSpecialist dealers who buy or consign; Reverb; Heritage, Christie's and Julien's for celebrity provenanceDealers on request; auctions a few times a yearMedium; fine strings Low
HandbagsCalendar auctionSotheby's Marketplace at a fixed price or online auction; Christie's and Heritage for rare pieces; direct buyers (Rebag, Privé Porter)Continuous for store-fresh; auctions seasonalMedium
WatchesCalendar auctionDealer for an immediate offer; consignment; Chrono24 (500,000+ listings); Phillips, Sotheby's, Christie's, Antiquorum for rare referencesDealer any day; auctions Geneva May and NovemberMedium
RacehorsesCalendar auctionKeeneland (September, November), Tattersalls (October, December); horses-in-training sales; claiming races; private saleFixed sale weeksMedium, calendar-bound
FalconsCalendar auctionRiyadh breeders' auction (August), Saudi Falcons and Hunting Exhibition auctions (October), ADIHEX; private sale with a CITES permitOne season; value highest on sale dayLow
Bluefin TunaCalendar auctionFish: Toyosu and regional wholesale markets, licensed buyers only. Capital: listed seafood groupsDaily auction, closed to private holders; equity dailyMedium
WagyuCalendar auctionAbout 170 licensed carcass auctions in Japan after JMGA grading; calf markets; herds privately; a handful of listed producersRegular, trade buyers onlyMedium
TeaCalendar auctionLeaf through prefectural auctions (Kyoto, Kagoshima) or Mombasa and Kolkata; capital through listed plantation groupsTencha once a year in May; equity dailyMedium
Rare Whisky CasksCounterpartyBroker, usually the one that sold the cask; independent bottler or blender at a bulk price; a few cask auctions; bottling at own costOn request, at the broker's quoteVery low; no market, no price list
Breeding StallionsCounterpartyPrivate sale of the share to another member or a buyer the syndicate manager approves; a public auction is rareOn request, subject to approvalLow; shares rarely trade
Rare EarthsCounterpartySale to a separator, metal maker or magnet producer, almost all in China; dealer buy-back at the dealer's own quoteOn requestMedium
OudCounterpartyAttar dealers in the Gulf, Mumbai and Singapore, who also buy back; kōdō houses for the finest woodOn request; no benchmarkLow
Pu-erh TeaCounterpartyFangcun wholesale market and the Donghe quotation platform for modern Dayi; a handful of dealers for antique cakesDaily for current Dayi; rarely aboveMedium for current Dayi; very low above
CaviarCounterpartySale of the farm or a stake to a trade buyer or private equity; fish stock to another farm. The tin itself is perishableOn request; no listed pure playLow
DatesCounterpartyFarm: private sale of land and trees to a local operator. Fruit: packers and the Buraidah and Madinah marketsOn request; foreign ownership restrictedLow
TrufflesCounterpartyOrchard sold as farmland with trees; produce weekly through Richerenches, Carpentras, Alba in seasonOrchard on request; produce weekly, November to MarchLow (white); Medium (black)
VanillaCounterpartyExporter in Madagascar at or above the official minimum; importer or flavour house abroad; diversified flavour-group equityWithin the seasonLow
Manuka HoneyCounterpartyComvita shares on the NZX; drums to a packer at the MGO-graded price; an apiary business privatelyEquity daily; honey on requestLow
Lab-Grown DiamondsCounterparty / NoneFor a stone: almost none; trade-in credit at 15–20% of price from a few sellers. For capital: listed growers and retailersEquity daily; the stone, effectively neverMedium (equity)
Maple SyrupNoneQuébec bulk: only to a PPAQ-authorised buyer at the Federation price. Outside Québec: US bulk buyers at their own priceDelivery in the season madeNone outside the plan; administered price
FrankincenseNoneExporter in Berbera, Bosaso or Salalah; ingredient houses and distillers. No exchange, no benchmark, no fundWithin the seasonLow
SaffronNoneSpice trader, packer or re-exporter at the grade the buyer's own test assigns. No exchange, no fund, no listed producer of scaleWithin a season or twoLow

Fifty-one rows, one per market brief. "Open" paraphrases the sector page's Holding horizon and Exit depth text. The Liquidity column is copied verbatim from the Structure line of each page as at 29 Oct 2026; if a sector page is updated, it governs.

IVWhat a round trip costs

The spread between buying and selling is the cost of the door. On a benchmark it is a dealer's margin; at auction it is two fees and a wait; through a counterparty it is whatever the counterparty decides.

DoorCost of entry and exitFigureConfidenceSource
Benchmark (gold)Dealer spread around a twice-daily regulated price; no premium on either sideSmall; not quantified hereDerivedMed11
Calendar auction, major housesBuyer's premium: 27% of hammer up to $1.5m, 22% to $8m, 15% above (Christie's from Sept 2025; Sotheby's reverted to 27 / 22 / 15 from Feb 2025)15–27% on the buy sideReportedHigh1 2
Calendar auction, major housesSeller's commission: negotiated; 10–15% on everyday material, reduced or waived to win large consignments; the house's gross take on a mid-market lot runs 25–35% of hammer0–15% on the sell sideEstimateMed3 4
ArtAuction houses and advisers cite a decade as the minimum hold for round-trip costs to be absorbed30–40% round tripEstimateMed14
Classic CarsTransaction costs round trip plus running costs of several per cent a year; anything under five years a losing hold unless the model is re-rated20%+ round tripEstimateMed15
Polished DiamondsA stone bought at retail starts a third or more under water, because the dealer bid sits far below the asking price≥33% on entryDerivedMed16
Lab-Grown DiamondsSellers themselves put resale at 10–20% of purchase price; the main online buyers decline the category80–90% lost on exitReportedHigh17
Rare Whisky CasksBroker quote on exit, from the firm that sold the cask; evaporation of about 2% a year meanwhile; the firms that sold a ten-year horizon in 2021–22 were insolvent by 2025Not quantifiable; counterparty riskDerivedMed18
Gemstone tokens (for comparison)Redemption spread cited by one law firm8–15%ReportedLow5
HandbagsThe premium is highest the day the bag leaves the boutique and decays with use; the spread runs the other way for a store-fresh quota pieceNegative on day oneReportedHigh19
Derived observation

Auction fees are published on the buy side and negotiated on the sell side, so a private holder who both buys and sells at auction pays the full published premium once and an unknown commission once. On a lot that hammers under $1.5m at a major house that is at least 27% before the seller's side is counted, which is why the sector pages for art, cars, watches and whisky bottles all cite five to ten years as the shortest hold that pays. Hyp

VHow often the door opens

A route that exists is not the same as a route that is open today. The sector pages give the calendar; this is the same information sorted by frequency.

Every trading dayBenchmark

Gold, silver, PGMs, copper, oil, cocoa, coffee; uranium trust units; wine and champagne through a merchant; current Dayi pu-erh in Guangzhou; a dealer's offer on a watch or a handbag.

Weekly to monthlyList and online auction

Heritage coin sales weekly; Parma and Jaén price lists weekly; truffle markets weekly in season; whisky bottles at monthly online auctions; classic cars online.

Twice a yearThe seasons

Geneva jewels in May and November; Old Masters in London in July and December; Keeneland September and November, Tattersalls October and December; art evening sales in spring and autumn.

Once a yearOne department

Sotheby's natural-history sale each July for a mounted dinosaur; the Riyadh falcon auction in August; Uji tencha in May; the annual Habanos festival auction.

Once a decade or lessThe counterparty's appetite

A natural pearl strand; a great stamp rarity; an imperial-jade necklace; a Flightline-grade stallion share at public auction. Between appearances there is no price.

The right-hand columns are where the Scarcity line on a sector page is highest and the Liquidity line lowest. The two are the same fact seen from different sides: an asset that is rarely sold has no running price, and an asset with no running price is held until a buyer appears.

VIThe buyer of last resort

The question that decides a forced sale. Four answers recur across the register, and one of them is nobody.

The benchmark dealer

A bullion bank at the LBMA price, a clearing member on the LME, a fund's authorised participant. The price may be bad on the day, but there is a price and a counterparty obliged by their business model to quote it. Gold, silver, PGMs, copper, oil, cocoa, coffee. 11 12

The trade, through an intermediary

Liv-ex merchants, Greysheet dealers, Parma wholesalers, Antwerp rough traders. A professional market with firm bids, which a private holder reaches only through a member who takes a margin. Wine, champagne, port, coins, cheese, rough and polished diamonds. 13

The one who sold it to you

The cask broker, the attar dealer, the rare-earth dealer offering buy-back at his own quote, the syndicate manager who must approve the buyer, the originating gallery expected to take a living artist's work back. The counterparty exists, sets the price, and may not be solvent when needed. Casks, oud, rare earths, stallion shares, primary-market art. 18 20 21 14

An administered buyer, or nobody

The Québec Federation, which takes delivery at its price and decides whether the syrup ships or goes to reserve; the exporter in Berbera who buys resin for weeks, not years; no one at all for a lab-grown stone. Where the sector page says "Σ5 because there is nothing to hold", this is why. 22 24 25 17

Derived observation

Auction-house guarantees and irrevocable bids put a buyer of last resort under the best lots in a sale, but only those lots, only at the house's discretion, and only in the two seasons when the sale is held. For the holder of an ordinary lot the last-resort buyer at auction is the underbidder, and the sector pages for stamps, fossils and natural pearls each note that this is one or two people. Hyp

VIIIndicators to monitor

  • Buyer's-premium changes at the major houses; a further rise reported for September 2026 is not yet confirmed from the houses' own schedules. Low 4
  • Whether Liv-ex, or any platform, opens direct access to private holders; that would move wine and champagne from the price-list door to the benchmark door.
  • Insolvencies among cask brokers and other buy-back counterparties, which convert a Counterparty door into None for their clients without notice.
  • Any secondary market for lab-grown stones; the online buyers that currently decline the category are the test.
  • The gap between RapNet asking prices and realised dealer bids for polished diamonds, which is the entry cost on that page.
  • The discount of the Sprott uranium trust to its metal, which is what the benchmark door costs when the trust does not redeem.

VIIISources

  1. The Art Newspaper, "Sotheby's hikes buyer's premiums as auction houses test new fee structures", 17 Feb 2026 — accessed 29 Oct 2026
  2. The Art Newspaper, "Sotheby's does a U-turn on new fees structure", 19 Dec 2024 — accessed 29 Oct 2026
  3. Masterworks, "Auction House Economics", Jul 2026 (secondary; a fractional-art platform) — accessed 29 Oct 2026
  4. Estimonia, "Auction House Fees Compared", Sept 2026 (aggregator; the September 2026 rise is not confirmed from the houses) — accessed 29 Oct 2026
  5. ΣΟΦΙΑ, "Tokenising scarce assets", Section IV, citing Neo Legal, 16 May 2026
  6. ΣΟΦΙΑ, Gold, market brief, Exit depth, snapshot Oct 2026
  7. ΣΟΦΙΑ, Copper and Cocoa, market briefs, Exit depth, snapshot Oct 2026
  8. ΣΟΦΙΑ, Fine Wine, market brief, Exit depth, snapshot Oct 2026
  9. ΣΟΦΙΑ, Art, market brief, Holding horizon and Exit depth, snapshot Oct 2026
  10. ΣΟΦΙΑ, Classic Cars, market brief, Holding horizon, snapshot Oct 2026
  11. ΣΟΦΙΑ, Polished Diamonds, market brief, Holding horizon, snapshot 20 Oct 2026
  12. ΣΟΦΙΑ, Lab-Grown Diamonds, market brief, Holding horizon and Exit depth, snapshot 20 Oct 2026
  13. ΣΟΦΙΑ, Rare Whisky Casks, market brief, Holding horizon and Exit depth, snapshot 20 Oct 2026
  14. ΣΟΦΙΑ, Handbags, market brief, Holding horizon, snapshot Oct 2026
  15. ΣΟΦΙΑ, Rare Earths, market brief, Exit depth, snapshot Oct 2026
  16. ΣΟΦΙΑ, Breeding Stallions, market brief, Exit depth, snapshot 20 Oct 2026
  17. ΣΟΦΙΑ, Maple Syrup, market brief, Holding horizon and Exit depth, snapshot 20 Oct 2026
  18. ΣΟΦΙΑ, Pearls, market brief, Holding horizon, snapshot Oct 2026
  19. ΣΟΦΙΑ, Frankincense, market brief, Holding horizon and Exit depth, snapshot Oct 2026
  20. ΣΟΦΙΑ, Saffron, market brief, Holding horizon and Exit depth, snapshot Oct 2026

Rows in the register (Section III) not separately numbered here are drawn from the Exit depth block of the linked market brief; each brief carries its own numbered sources.

Compiled 29 Oct 2026. First publication. Corrections: none recorded.