How Banks Trade Gold Behind the Scenes: LBMA, Loco-London, Unallocated Accounts and BIS

When central banks, sovereign wealth funds, refineries and mining companies want to buy or sell gold, they do not go to a coin shop. They trade through the wholesale gold market, a London-centered network of bullion banks settling billions of dollars per day in allocated and unallocated gold accounts, with cross-border settlement at the Bank of England and the Bank for International Settlements in Basel. Most retail investors have never seen this market. Understanding it explains why gold prices move the way they do.

The size of the wholesale gold market

LBMA-cleared turnover averages 20 to 30 million ounces per day, roughly 50 to 70 billion dollars at current prices. That is more than 7 times the daily turnover of the COMEX gold futures market. Most retail attention focuses on COMEX, but the price discovery and settlement reality lives in London.

The LBMA: what it actually is

The London Bullion Market Association is not an exchange. It is a self-regulatory body that sets quality standards for gold (good-delivery bars: 350-430 troy ounces, 99.5 percent purity minimum), accredits refiners, and operates the LBMA gold price benchmark (the daily auction that replaced the old London Gold Fix in 2015).

Loco-London: the global standard

Loco-London means a gold position located in London for settlement purposes. Even when gold physically sits in New York, Zurich or Singapore, parties can settle by transferring a London entry. This is the gold market's equivalent of dollar bank accounts settling in New York. It is the reason London remains the center of physical gold trading despite the US holding the world's largest official reserves.

Allocated vs unallocated accounts

The bullion banks

A small group of banks dominate the wholesale gold market: JPMorgan, HSBC, UBS, ICBC Standard, BNP Paribas, Toronto-Dominion, Goldman Sachs, Citi, and Morgan Stanley. They make markets in allocated and unallocated gold, finance miners, lease gold to refiners, and serve as authorized participants for the major gold ETFs (notably JPMorgan and HSBC for GLD).

The Bank of England vaults

Beneath Threadneedle Street, the Bank of England stores approximately 5,000 tonnes of gold on behalf of around 30 central banks plus the LBMA member banks. The vault is the second-largest gold custody facility in the world after the NY Fed. Gold ownership transfers between central banks can happen by paper entry without physical movement, a major reason London remains the settlement center.

How gold leasing works

Central banks lease gold to bullion banks at low rates (typically 0.10-1.00 percent annualized). Bullion banks then on-lend or sell the gold into the market, creating short positions they cover later. This system has provided liquidity to the wholesale market for decades. The total leasing pool was historically several thousand tonnes; activity has declined since 2010 as central banks turned net buyers.

BIS gold swaps

The Bank for International Settlements in Basel acts as the bank for central banks and is one of the largest gold-swap counterparties. A swap involves a central bank temporarily exchanging gold for currency (usually USD) with the BIS, with an agreement to reverse the transaction later. BIS quarterly statements show outstanding swap balances.

The LBMA price auction

Twice a day (10:30 GMT and 15:00 GMT), the LBMA conducts an electronic auction that establishes the official LBMA Gold Price, used as the benchmark for billions of dollars of contracts. Direct participants (currently 18 banks) submit anonymous bids until imbalance is below 10,000 troy ounces.

How wholesale gold connects to COMEX

The LBMA is OTC; COMEX is futures. Bullion banks arbitrage between the two continuously. When COMEX trades at a premium to spot, banks deliver physical into COMEX and sell futures. When spot trades at a premium, banks take delivery on COMEX and sell physical. This arbitrage keeps prices linked.

Gold refining and the supply chain

• Miners sell concentrate or dore (gold-rich alloy) to refiners.
• LBMA-accredited refiners (Valcambi, PAMP, Argor-Heraeus, Metalor, Heraeus, Rand, Tanaka, Asahi) process into good-delivery bars.
• Bullion banks finance the refining process and take delivery of refined bars.
• Allocated holders (central banks, sovereign wealth) take delivery into vaults.
• Retail demand (coin and small-bar minting) buys from refiners or banks at a markup.

Transparency: what is and is not visible

• Visible: LBMA monthly volume statistics, daily auction prices, BIS quarterly gold-swap data, central-bank holdings, ETF holdings (daily), COMEX positioning (weekly CFTC).
• Less visible: specific allocated holders, OTC trades between bullion banks, BIS counterparties, bullion bank positions vs allocated obligations.
• Generally opaque: leasing-pool size, intraday settlement flows, specific positions of large institutional buyers.

What this means for retail investors

1. 1.Prices you see on screens reflect wholesale market settlement, not retail markups.
2. 2.Physical retail premiums (coin, small bar) widen when wholesale gold gets stressed.
3. 3.ETFs are backed by LBMA loco-London allocated gold; they are part of this system.
4. 4.Allocated holdings remove counterparty risk; unallocated saves storage cost but exposes you to bank credit.
5. 5.LBMA daily auction is the benchmark price most contracts settle against, not the COMEX close.

Frequently asked questions

What is loco-London?

It is the convention that a gold position is located in London for settlement purposes, even if the physical gold sits elsewhere. It allows global market participants to transfer ownership efficiently by paper entry.

Why is London the center of gold trading?

Historical accident plus institutional inertia. The Bank of England vaults, LBMA standards, and London time-zone position made London the natural settlement center. The position has survived even as physical gold has moved east.

Is unallocated gold actually gold?

Functionally for liquidity, yes. Legally, it is a claim on the bank, not specific bars. In a bank insolvency, allocated holders own their gold; unallocated holders are unsecured creditors.

Who decides the LBMA gold price?

An anonymous twice-daily electronic auction administered by IBA on behalf of the LBMA. Currently 18 direct participants submit bids until imbalance is below 10,000 oz.

Do bullion banks manipulate gold prices?

Specific instances of manipulation (spoofing) have been prosecuted. JPMorgan paid 920 million dollars in 2020 to settle CFTC and DOJ charges over precious-metals spoofing. Structural manipulation across the wholesale market is harder to evidence.

How big is the leasing pool?

Historically several thousand tonnes; today smaller because central banks are net buyers, not net lenders. Exact figures are reported quarterly by the BIS.

Can retail investors access LBMA gold?

Indirectly, through gold ETFs (GLD, IAU, PHYS, SGOL) which are backed by LBMA loco-London allocated gold. Direct LBMA accounts typically require institutional minimums of 1 million dollars or more.

Where does my ETF gold actually sit?

Most major gold ETFs store at the HSBC London vault (GLD), JPMorgan London or NY vault (IAU), or Brink's vaults across multiple jurisdictions. Bar lists are typically published online for full transparency.

Disclaimer