The nuclear option China could take in trade war with the US
According to the US Treasury, in January, China held $761bn (£592bn) in American government bonds. This was second only to Japan (which holds more than $1 trillion) and nearly a tenth of all foreign-held US government debt.
Robin Brooks, senior fellow at the Brookings Institute, says the real figure is even higher – likely around $1 trillion – after accounting for the unknown sums that China holds via custody accounts in Europe.
If China embarked on a mass sale of its US treasuries, the value of the debt would plunge and yields would soar. This would drive up US government borrowing costs and hammer the public finances in a highly destabilising move.