United States - 6-Month Treasury Bill Minus Federal Funds Rate was -0.22% in March of 2024, according to the United States Federal Reserve. Historically, United States - 6-Month Treasury Bill Minus Federal Funds Rate reached a record high of 1.28 in July of 1961 and a record low of -5.01 in June of 1981. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - 6-Month Treasury Bill Minus Federal Funds Rate - last updated from the United States Federal Reserve on April of 2024.