One of the reasons to cause T-Bond/T-Bill to go down is the risk factor.
Since all big stakeholders keep holding and no one will sell their holding, there is no risk factor (risk 0). People are watching to see if china would do something or saying something like selling their holding. It turned out nothing much. So the risk is still 0 disregarding AA- rating. Therefore, the safe heavens for money to go when the equity is bad are those two: gold and treasury. Once the equity becomes stable, then the crash of those two will be inevitable.
Not a bull, not a bear, I am just a wolf ... 偶還是習慣稱行情漲為紅盤跌為慘綠