有沒有Treasury Direct的賬戶？把錢放到那裏買短期國債。在Fidelity操作，可以這樣做。

Choose Product, from drop down menu, choose Fixed Income, Bond & CDs

Then choose the tab "Yield", then you will see a tabular form with product on the left and month on the top.

Choose US Treasury and 6mo, click the yield 5.xx%, then you will see a list of treasuries that you can buy.