“Dumping US Treasuries would impede China’s economic growth if dollar assets were sold and converted back into renminbi (which would appreciate). But China could diversify its reserves by converting them into another liquid asset that is less vulnerable to US primary or secondary sanctions, namely gold. Indeed, both China and Russia have been stockpiling gold reserves (overtly and covertly), which explains the 30% spike in gold prices since early 2019.
In a sell-off scenario, the capital gains on gold would compensate for any loss incurred from dumping US Treasuries, whose yields would spike as their market price and value fell. So far, China and Russia’s shift into gold has occurred slowly, leaving Treasury yields unaffected. But if this diversification strategy accelerates, as is likely, it could trigger a shock in the US Treasuries market, possibly leading to a sharp economic slowdown in the US.”