Treasury's May 6 refunding statement keeps coupon auction sizes flat through the next several quarters. $125 billion next week, $58 billion of 3-year notes, $42 billion of 10-year notes, $25 billion of 30-year bonds, all settling May 15.

The interesting line sits in the TBAC minutes. Primary dealers now see privately-held net marketable borrowing running about $300 billion higher across FY2026 to FY2028, with a $1.3 trillion funding shortfall in FY2027 and FY2028 if coupon sizes and bill supply stay on the present path.

So the machine chooses bills and calendar management because the long end already has enough duration to digest. Central clearing, eSLR relief, buybacks, repo investment of excess cash, all of it reads like plumbing work around one brute fact. The fiscal state wants term funding at prices the marginal buyer has started to discipline.

The auction calendar remains orderly. That is the whole point of the machinery. Orderly is not cheap.