WASHINGTON — Interest rates on short-term Treasury bills fell in Monday’s auction, with the rate on six-month bills reaching their lowest level in over a year and a half.
The Treasury Department auctioned $30 billion in three-month bills at a discount rate of 0.040 percent, down from 0.050 percent last week. Another $25 million in six-month bills was auctioned at a discount rate of 0.065 percent, down from 0.075 percent.
The three-month rate was the lowest since those bills averaged 0.030 percent on July 29. The six-month rate was the lowest since they averaged 0.060 percent on Jan. 17, 2012. Full story for BostonGlobe.com subscribers.