Us treasury bonds refer to the national bonds issued by the us treasury on behalf of the federal government. According to the different issuance methods, US Treasury bonds can be divided into three types: voucher-type treasury bonds, physical voucher-type treasury bonds (also known as bearer from bond or Treasury bonds) and book-entry treasury bonds. According to the maturity of bonds, US Treasury bonds can be roughly divided into three categories: short-term treasury bonds (T-Bills), medium-term treasury bonds (T-Notes) and long-term treasury bonds (T-bonds). In addition to local investors, countries around the world can also buy US Treasury bonds. In previous years, the average issuance of US Treasury bonds was $500 billion to $600 billion per year.

Purchase method:

US Treasury bonds are issued by regular auction. Three-month and six-month treasury bills are auctioned every Monday, the third week of each month throughout the year, and the treasury bills are delivered on Thursday; 1 month, February, April, May, August,1month,1/month, the Ministry of Finance announces the auction amount in the middle of the month, pricing one week later, and delivery at the end of the month is about 3 1; Auction in the second month of each quarter (February, May, August and October) for five or ten years; Auction once a year in February and August, unchanged for 30 years. Generally, the auction amount of five-year, ten-year and thirty-year treasury bonds is announced by the Ministry of Finance at the beginning of the month, and the price is fixed one week later, which means that the mid-month delivery is 15.