teleforceFrance pulls last gold held in US for $15B gain
https://www.mining.com/france-pulls-last-gold-held-in-us-for-15b-gain/
This is not gain at all. At least in theory: You own some tons of gold at the start of the process, you have the same tons of gold at the end of the process.
The only real gain is that you have gold in the US custody and the US can be tempted to just use it without telling you anything.
In other words, you had "paper gold" or "virtual gold" that the US can confiscate anytime, for example after invading Greenland, blackmailing France to do nothing.
You gain custody of what is yours.
Assets like this are one of the complexities in calculating national import and export figures.
For example, imagine there's some German-owned gold in a UK bank vault, the owners sell it to a UK broker who sells it to a Chinese investor? The physical bars don't move, but on paper it's been imported to the UK then exported.
But a lot of people looking at export figures are expecting to learn things about the manufacturing industry, and picturing exports as washing machines, cars and computer chips - which imply lots of well paid jobs for skilled labour. So the UK reports import/export figures with 'non-monetary gold' listed separately.
(The fact flows of gold are highly volatile allows a classic bit of political sleight-of-hand - if you include gold, UK exports are both up and down since Brexit, depending on the pair of dates you choose)