US sells 4-week bills at a high rate of 3.625%, B/C 2.77x; sells 8-week bills at a high rate of 3.665%, B/C 2.85x

Weekly bill auctions are the most routine supply in the rates complex, and the 4-week and 8-week stops rarely carry signal on their own; they clear at levels pinned to the front of the curve by the prevailing policy rate and reserve conditions. The informative elements are the bid-to-cover against recent averages for the same tenors and any tail versus the when-issued, since weak demand at the very front end has historically been an early tell for collateral indigestion, heavy bill supply tied to deficit financing, or quarter-end balance sheet constraints rather than any read on policy. The spread between the two stops also bears watching, as kinks in the bill curve have tended to trace debt ceiling episodes and expected rate moves within the horizon. With a body this thin there is little beyond the prints themselves to work with; the follow-ons are the tail details, the award breakdown across dealer, indirect and direct takedown, and whether results rhyme with the rest of the week's bill and coupon calendar.