The London OTC market is the global wholesale precious-metals market centered in London, where banks, dealers, refiners, producers, investors and other institutions trade gold and silver directly rather than through a centralized futures exchange.
OTC stands for over the counter.
Instead of every trade passing through one exchange with standardized terms, counterparties negotiate transactions directly.
That gives the market considerable flexibility. Participants can agree on different quantities, settlement dates, delivery locations and transaction structures. Spot trades, forwards, swaps, options and physical bullion transactions all form part of the ecosystem.
London is therefore much more than a place where gold and silver prices are quoted.
It is a major global center for wholesale bullion trading, settlement and custody.
The market also highlights an important distinction: large amounts of gold and silver exposure can change hands without individual bars moving after every trade.
Efficient financial settlement and direct ownership of identifiable bullion are not the same thing.
How the London OTC Market Works
Unlike a centralized exchange, the London OTC market has no single order book showing every bid, offer and transaction.
Institutions trade directly with one another.
A bullion bank may quote gold to a mining company, refiner, investment fund or another bank. The parties agree on the terms and become counterparties.
That differs from exchange trading, where contract size, expiry and settlement procedures are standardized.
OTC transactions can instead be tailored around commercial needs.
A customer might require:
- a particular quantity of gold or silver;
- settlement on a specific date;
- exposure lasting several months;
- delivery in a chosen location;
- a customized hedge.
A miner may want to hedge production that does not fit neatly into a standard futures maturity. A refiner may need metal on a particular date.
London OTC trading is built around negotiated wholesale relationships rather than a single standardized product.
What “Loco London” Means
Transactions in the London bullion market are often described as Loco London.
The term refers to metal or accounts settled in London. The counterparties themselves can be located almost anywhere.
A producer in South Africa could sell gold to an institution in Asia while settlement still takes place through London metal accounts.
The physical bullion used within this system generally follows established wholesale standards. The Good Delivery Bar framework sets requirements for refiners and bars accepted by the professional market.
Gold trading is closely associated with large Good Delivery bars of roughly 400 troy ounces, while wholesale silver bars are commonly around 1,000 ounces.
Standardization reduces friction. Market participants know which bars qualify, and bullion can move through the professional system more efficiently.
Location, ownership and account structure still matter.
Good Delivery standards provide the physical foundation beneath a much larger financial trading network.
Spot, Forwards and Other OTC Transactions
London trading extends far beyond spot bullion.
Institutions can arrange transactions for near-immediate settlement or structure exposure months or years into the future.
The spot price reflects near-immediate wholesale pricing and plays an important role in global precious-metals markets.
A forward contract allows two parties to agree today on a transaction that will settle later.
This fits naturally with OTC trading because quantity, timing and commercial terms can be customized.
A gold producer expecting output six months from now may want to lock in part of its future selling price. A manufacturer expecting to consume silver may want greater certainty over future purchasing costs.
Swaps, options and other transactions add further flexibility.
Banks can combine them with physical holdings and other exposures to manage financing, inventory and client risk.
This is one reason visible futures positioning tells only part of the story.
A bank that appears short through one exchange position may hold offsetting forwards, options, physical bullion or client exposures elsewhere.
One visible position can be only a small part of a much larger global book.
Why Unallocated Accounts Matter So Much in London
One defining feature of London wholesale settlement is the widespread use of unallocated accounts.
With unallocated gold, a customer generally has a claim for a quantity of metal against an institution rather than title to particular bars.
That makes settlement highly efficient.
If one institution owes another 10,000 ounces of gold, balances can be adjusted without repeatedly moving heavy bars between vaults.
Physical movement is expensive, slower and carries security and logistical costs.
But that convenience comes with a different ownership structure.
An unallocated account creates exposure to the institution that owes the metal, introducing counterparty risk.
Allocated ownership works differently.
With allocated gold, identifiable bars are assigned to the owner and recorded using details such as bar numbers, weights and fineness.
| Structure | What the Customer Holds | Main Advantage |
|---|---|---|
| Unallocated | Claim for a quantity of metal | Efficient trading and settlement |
| Allocated | Title to identifiable bullion | Clearer direct ownership |
| Direct possession | Metal personally controlled | Minimal intermediary dependence |
For institutions trading large amounts frequently, unallocated settlement can be highly practical.
For someone holding gold specifically as an asset outside a chain of financial claims, identifiable physical ownership may matter much more.
Two accounts can both show “gold” while representing very different forms of ownership.
Clearing, Vaults and London’s Physical Foundation
Despite the scale of financial trading, London rests on substantial physical infrastructure.
Gold and silver are stored in professional vaults operated by banks and specialist custodians.
Published vault inventory figures show metal held within the London system, but total inventory should not be mistaken for bullion immediately available to every buyer.
Ownership is spread among banks, funds, institutions and other customers.
A gold bar can sit inside a London vault while already belonging to an owner who has no intention of selling it.
Metal inside a vault is not automatically metal available for sale.
Settlement also does not require every ounce traded during the day to move physically.
Positions can be transferred largely through account entries between market participants.
The financial and physical layers therefore overlap, but they are not identical.
Real bullion forms the foundation. Around it sits a much larger network of ownership claims, hedges and transactions.
How London Connects With COMEX
The London OTC market does not operate separately from futures exchanges.
London and COMEX prices are connected through institutional trading, hedging and arbitrage.
One mechanism linking the two is an Exchange for Physical.
An EFP allows counterparties to exchange a futures position for a related physical or cash-market position, helping institutions move exposure between COMEX futures and London.
If the relative price between New York futures and London bullion moves far enough out of line, professional participants may trade the difference.
Their activity tends to pull prices back toward a relationship consistent with financing, transport, liquidity and other costs.
London provides a deep OTC bullion market.
COMEX contributes transparent futures pricing, trading volume and open interest.
Global gold and silver pricing emerges from a network of connected markets, not from one exchange or one screen.
Temporary divergences can still be informative. They may reflect financing, logistics, positioning, physical availability or changing demand.
The price difference itself is only the starting point.
Why the London OTC Market Matters to Physical Investors
The London wholesale market may seem distant from someone buying a silver coin or one-ounce gold bar, but its influence reaches far down the precious-metals supply chain.
Prices negotiated among large professional participants help shape the references used by refiners, fabricators and bullion dealers.
The final retail price still differs.
Fabrication, transportation, dealer margins and physical premiums determine what an investor ultimately pays for a specific product.
For physical investors, however, the more important lesson is the difference between price exposure and ownership.
A London account can represent an unallocated claim.
Another can represent title to identifiable bars.
A private investor can own bullion directly.
All three may benefit when gold or silver rises.
They are not the same form of ownership.
London illustrates that distinction particularly well.
Its financial infrastructure allows large bullion transactions to settle efficiently. Its vaults and Good Delivery standards provide the physical foundation beneath the market.
And its allocated and unallocated account structures show why asking how metal is owned can be just as important as asking what price it trades at.
Frequently Asked Questions
What Is the London OTC Precious Metals Market?
The London OTC market is a wholesale gold and silver market where banks, dealers, refiners, producers, investors and other institutions trade directly with one another rather than through a centralized futures exchange.
What Does OTC Mean in Gold and Silver Trading?
OTC means over the counter. Transactions are negotiated directly between counterparties, allowing terms such as quantity, settlement date and structure to be tailored to their needs.
What Does Loco London Mean?
Loco London refers to precious-metal transactions and accounts settled in London. The counterparties themselves can be located elsewhere, while London serves as the settlement location.
Why Are Unallocated Accounts Common in the London Market?
Unallocated accounts make wholesale trading and settlement more efficient because institutions can transfer claims for quantities of metal without assigning and moving specific bars after every transaction.
What Is the Difference Between Allocated and Unallocated Gold in London?
Allocated gold gives the customer title to specific identifiable bullion. Unallocated gold generally represents a claim against an institution for a quantity of metal rather than ownership of particular bars.
Does London OTC Trading Require Physical Gold or Silver to Move?
Not necessarily. Many transactions can settle through account transfers without bars physically changing location. Physical bullion remains an important foundation of the market, but financial ownership can change without immediate movement of the metal.
How Is the London OTC Market Connected to COMEX?
London and COMEX are linked through arbitrage, hedging and mechanisms such as Exchange for Physical transactions. Professional participants can shift exposure between London OTC positions and exchange-traded futures.
Why Does the London OTC Market Matter to Physical Gold and Silver Investors?
London plays a major role in global wholesale pricing, settlement and custody. Understanding its structure also helps investors distinguish between direct ownership of identifiable bullion and financial claims that provide price exposure without ownership of specific metal.
