London bullion market
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The London bullion market is a wholesale over-the-counter market for the trading of gold and silver. Trading is conducted amongst members of the London Bullion Market Association (LBMA), loosely overseen by the Bank of England. Most of the members are major international banks or bullion dealers and refiners.
Gold trading 
Internationally, gold is traded primarily via over-the-counter (OTC) transactions with limited amounts trading on the New York Mercantile Exchange (NYMEX) and Tokyo Commodity Exchange (TOCOM). These forward contracts are known as gold futures contracts. Spot gold is traded for settlement two business days following the trade date, with a business day defined as a day when both the New York and London markets are open for business. Unlike many commodity markets, the forward market for gold is driven by spot prices and interest rate differentials, similar to foreign exchange markets, rather than underlying supply and demand dynamics. This is because gold, like currencies, is borrowed and lent by central banks and in the interbank market. Interest rates for gold tend to be lower than US domestic interest rates. This encourages gold borrowings so that central banks can earn interest on their large gold holdings. Except in special circumstances the gold market tends to be in positive contango, i.e. the forward price of gold is higher than the spot price. Historically this has made it an attractive market for forward sales by gold producers and contributed to an active and relatively liquid derivatives market.
Market size 
The bulk of global trading in gold and silver is conducted on the over-the-counter (OTC) market. London is by far the largest global centre for OTC transactions followed by New York, Zurich, and Tokyo. Exchange-based trading has grown in recent years with Comex in New York and Tocom in Tokyo generating most of the activity. Gold is also traded in forms of securities, such as exchange-traded funds (ETFs), on the London, New York, Johannesburg, and Australian stock exchanges.
Although the physical market for gold and silver is distributed globally, most wholesale OTC trades are cleared through London. The average daily volume of gold and silver cleared at the London Bullion Market Association (LBMA) in November 2008 was 18.3 million ounces (worth $13.9 billion) and 107.6 million ounces (worth $1.1 billion) respectively. This means that an amount equal to the annual gold mine production was cleared at the LBMA every 4.4 days, and to the annual silver production every 6.2 days. The Gold Anti-Trust Action Committee claims that clearing data substantially understates the true amount of gold traded, due to the netting of trades in the calculation of Clearing Statistics. They claim the LBMA market is $5.4 trillion a year.
Account Types 
Allocated Accounts 
Allocated Accounts are accounts held by dealers in clients’ names on which are maintained balances of uniquely identifiable bars, plates or ingots of metal ‘allocated’ to a specific customer and segregated from other metal held in the vault. The client has full title to this metal with the dealer holding it on the client’s behalf as custodian. To avoid any doubt, metal in an allocated account does not form part of a precious metal dealer’s assets.
Unallocated Accounts 
Unallocated Accounts represent the most popular way of trading, settling and holding gold, silver, platinum and palladium. Transactions may be settled by credits or debits to the account while the balance represents the indebtedness between the two parties. Credit balances on the account do not entitle the creditor to specific bars of gold or silver or plates or ingots of platinum or palladium but are backed by the general stock of the precious metal dealer with whom the account is held. The client in this scenario is an unsecured creditor.
Unallocated Risks 
The total quantity of unallocated gold is estimated to be 15,000 tonnes at the end of 2008 which supports the 2,134 tonnes on average of spot gold trade through London every day representing 14.2% of the pool. This compares to average daily turnover in UK equities of between 0.34% and 0.63% for the 12 months ending September 2009. While members of the LBMA provide no information on the backing for unallocated gold the improbably high turnover is suggestive they are operating a fractional reserve system where unallocated accounts are only partially backed by physical gold. Similarly to a bank run this makes LBMA unallocated gold accounts susceptible to loss if a sufficient number of market participants request delivery of physical bullion.
Other London markets 
The London bullion market is distinct from the London Metal Exchange (LME). The latter is the futures exchange with the world's largest market in options, and futures contracts on base and other metals.
See also 
- Bullion Markets (PDF) (2009)
- Paul Mylchreest, Thunder Road Report (PDF) GATA, p. 10; (October 15, 2009). Retrieved March 21, 2010
- Eric King, Interview with Andrew Maguire and GATA board member Adrian Douglas King World News (March 30, 2010). Retrieved May 6, 2011
- Susanne Capano, A Guide to the London Precious Metals Markets Published jointly by the LBMA and the London Platinum and Palladium Market (LPPM), p. 6 (August 2008). Retrieved March 21, 2010
- Paul Mylchreest, Thunder Road Report (PDF) GATA, p. 11 (October 15, 2009). Retrieved March 21, 2010