Interest rates on short-term Treasury bills were mixed in Monday's auction with rates on three-month bills unchanged and rates on six-month bills rising to the highest level in four weeks.
The Treasury Department auctioned $32 billion in three-month bills at a discount rate of 0.075 percent, unchanged from last week. Another $28 billion in six-month bills was auctioned at a discount rate of 0.110 percent, up from 0.095 percent last week.
The six-month rate was the highest since those bills averaged 0.120 percent on Jan. 2.
The discount rates reflect that the bills sell for less than face value. For a $10,000 bill, the three-month price was $9,998.10, while a six-month bill sold for $9,994.44. That would equal an annualized rate of 0.076 percent for the three-month bills and 0.085 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, edged up to 0.15 percent last week from 0.14 percent the previous week.