US sells 4-week bills at a high rate of 3.890%, B/C 2.83x; sells 8-week bills at 3.990%, B/C 2.70x

Weekly 4-week and 8-week bill sales are routine cash-management supply, and the informative element is the bid-to-cover rather than the rate, which tends to track the front-end policy anchor closely. Covers in the high twos are broadly in line with the typical range for these tenors, where demand has historically been underpinned by money market funds managing large cash balances against constrained bill supply. The spread between the two tenors reflects where each maturity sits relative to expected policy moves and any quarter-end or debt-ceiling-related distortion in the bill curve, a dynamic that has periodically inverted or kinked the very front end in past episodes. The relevant tells are the tails versus when-issued levels, indirect and dealer takedowns, and how these results sit against the pattern of recent weeks rather than any single auction. As high-frequency supply with heavy structural sponsorship, these results are a demand barometer for the front end more than a market-moving event.