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The Boston Globe

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6-month T-bills at lowest since Sept.

Interest rates on short-term Treasury bills were mixed in Monday’s auction. Rates on three-month bills were unchanged, and rates on six-month bills fell to the lowest level since mid-September.

The Treasury Department auctioned $32 billion in three-month bills at a discount rate of 0.09 percent, unchanged from last week. Another $28 billion in six-month bills was auctioned at a discount rate of 0.135 percent, down from 0.14 percent last week. The six-month rate was the lowest since these bills averaged 0.13 percent on Sept. 17.

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The discount rates reflect that the bills sell for less than face value. For a $10,000 bill, the three-month price was $9,997.73, while a six-month bill sold for $9,993.18. That would equal an annualized rate of 0.091 percent for the three-month bills and 0.137 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 unchanged at 0.18 percent last week.

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