US to sell USD 82bln 26-week bills, to sell USD 95bln 13-week bills, and to sell USD 95bln 6-week bills on October 13th; all to settle on October 15th

Routine weekly bill auction sizes from Treasury, a scheduled operational announcement rather than a policy signal. The items of interest are the auction sizes relative to the prior week's same-maturity sales: unchanged sizes are the default and attract little attention, while an increase in the 4-week to 26-week stack has historically been the first visible mechanism through which a heavier near-term financing need, a larger deficit run-rate or a TGA rebuild, shows up in funding markets before it reaches the coupon calendar. Sustained upward drift in bill sizes has in past episodes tightened money-market conditions at the margin, steepening bill yields relative to OIS and pulling collateral out of repo, though the reaction is typically absorbed within the front of the curve rather than transmitted to longer tenors. The tell is whether size changes are concentrated at one maturity or across the strip, and whether they persist for consecutive weeks, since a one-off is usually technical while a pattern signals a revised borrowing estimate ahead of the quarterly refunding. As an announcement rather than an auction result, this carries no direct market signal; the auctions themselves, and the tails on them, are the follow-on event.