Interest rates on three-month and six-month Treasury bills were mixed in Tuesday's weekly auction.
The Treasury Department auctioned $27 billion in three-month bills at a discount rate of 0.025 percent, unchanged from the previous week.
Another $24 billion in six-month bills was auctioned at a discount rate of 0.080 percent, down from 0.095 percent last week. The six-month rate was the lowest since those bills averaged 0.070 percent on May 16.
The discount rates reflect that the bills sell for less than face value. For a $10,000 bill, the three-month price was $9,999.37 while the six-month bill sold for $9,995.96. That would equal an annualized rate of 0.025 percent for the three-month bills and 0.081 percent for the six-month bills.
Separately, the Federal Reserve said Monday that the average yield for one-year Treasury bills, a popular index for making changes in adjustable rate mortgages, was 0.19 percent, unchanged from the previous week.