alt Hacker NewsNo, but "removing" around half of it from one place is quite a bit. Though I doubt any single physical kg ever moved more than a few meters to the buying countries vault. edit: They physically moved 27 tons, the rest was traded away and bought again in London.
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In times of crisis it can be physically moved, e.g. under threat of Nazi invasion in 1939-1940 the UK physically moved over 1,500 tonnes of gold from London to Canada ("the largest known movement of physical wealth in history"[0]), and infamously at the start of the Spanish Civil War the Spanish physically moved 510 tonnes of gold from Spain to the Soviet Union (never to see it again[1]).
That's the fun thing about gold. It's literal gold, not numbers on a spreadsheet. Moving it really means moving it: bars are stamped and owned, and if the owner wants to move them, those bars need to get transported to wherever the owner says they should be.
It's also the idiotic thing about gold, a metal that has no more or less inherent monetary value than a fiat currency =)
Can’t move what isn’t there
If they sell enough of it in the US and buy enough in London, traders who take the other side of that position will physically move it to London.
That's exactly the service the commodities markets provide: they will absorb a small trade without anyone incurring the costs of shipping precious metals, and they know who to call to get it shipped once there's enough supply/demand imbalance to make shipping it worthwhile.