The approach is to start with the declared gold in custody and subtract what we reasonably know exists to see what’s left. On reasonable assumptions (described in the notes to the table) we can account for all but 467 tonnes of the gold in the BoE’s custody in March 2006. However, remember this is a composite figure, because the BoE leases custodial gold by agreement with its customers – the majority of which will have been delivered out of custody to the market. We have no way of knowing whose gold is actually leased, but at least we more or less know what should be there.
We also know that the gold owned by the central banks represented in the table above plus that of Russia, China, the central Asian states and the U.S., totaled 12,361 tonnes in March 2006 according to the IMF/WGC statistics. The remaining central banks which are certain to keep gold in London between them owned 18,377 tonnes. To suggest that they had only 467 tonnes of this at the BoE is only true in the sense that some of their gold is out on lease. We can only speculate how much on the basis of what portion of 18,377 tonnes we would expect to be stored in London, but a figure in excess of 5,000 tonnes seems highly likely.
By March this year, the quantity of gold in custody had mysteriously risen from 3,532 tonnes to 6,284 tonnes, leaving a balance not-accounted-for in our table of 2,888 tonnes. Over the intervening years, western central banks officially sold 1,184 tonnes, most of which will have probably passed through the BoE’s vaults. This gold flow is not reflected in custody figures in the table.
The custody ledger is therefore more complicated than its face value. Gold is being leased and has gone out of the door. Gold is being held and not leased, and yet more gold has been shipped in from other centers to be sold, leased or swapped. The amount disclosed by the BoE is effectively a “float:” a net figure comprised of larger amounts. We can therefore assume that despite the rise in custodial gold, gold from the BoE vault has also been supplied to the market.
It is extraordinary that the BoE on behalf of other central banks has been arranging leasing contracts for gold that seems unlikely to return. The lessees may from time to time have been able to buy back the bullion to deliver to the leasor and re-deposited it back with the BoE; but most of bullion goes to India, China or South East Asia from whence it never returns. This may have been less of a problem before Chinese demand took off, people began buying ETFs, and there was a growing supply of scrap. But this has not been the case for several years now, and the remaining leasing agreements must have to be rolled forward, leaving central bank customers of the BoE semi-permanent creditors of bullion banks.
One can only surmise that the central banking community of North America and Europe see gold as an increasing embarrassment. Nevertheless it is hard to understand why central banks continue to lease gold, particularly after the banking crisis when central banks must have become more aware of systemic risks and the possibility their lessees might go bankrupt. More recently, leasing will have almost certainly been a source of finance for cash-strapped Eurozone states, and might help explain how they have survived in recent months. However, this cannot go on forever.