Citi: U.S. Treasury Dealer Survey Hints at Cuts to 20-Year and 30-Year Bond Auction Sizes in November
nashnova research
Citi expects the Treasury's November 4 refunding announcement to cut 20-year and 30-year auction sizes by $3 billion each, arguing the October 16 dealer questionnaire has effectively confirmed a long-end supply reduction — a move that would reshape long-duration rate pricing.
What are the specific numbers Citi is forecasting?
After the cuts, 20-year new-issue size drops to $13 billion, with reopenings at $10 billion.
30-year new-issue size drops to $22 billion, with reopenings at $19 billion.
This means → Treasury is shifting part of its long-term borrowing into shorter-dated bills, reducing new supply at the long end.
What did the Treasury's questionnaire actually ask?
The first question asked dealers for feedback on long-end buyback operations — a program where Treasury repurchases its own older long-dated bonds from the market — covering liquidity impact and changes in client willingness to participate.
Citi believes Treasury's real purpose in raising buyback caps was to suppress long-end yields, not simply to improve market functioning.
The second question directly asked "what auction size adjustments should be considered," citing "structural changes in investor demand" — which Citi reads as a reference to heavy corporate bond issuance by mega-cap tech firms crowding out Treasury demand.
In plain terms = Treasury is all but saying: long-end debt isn't selling well, and we plan to issue less of it.
What does the buyback data reveal?
Over the past year, 30-year auctions cleared on average 0.23 basis points through the pre-auction yield — meaning buyers were willing to pay a slight premium.
The 20-year, by contrast, tailed by just 0.02 basis points — noticeably weaker demand.
The first two buyback operations under the new September caps went undersubscribed; the next three were fully subscribed — the October 1 operation for 10-to-20-year bonds drew $46.4 billion in offers, and the October 8 operation for 20-to-30-year bonds drew $14.9 billion.
This means → the market is sitting on a large stock of long-end Treasuries it wants to sell, but only if Treasury is willing to buy at the right price.
Where do long-end yields stand now?
The 30-year yield is more than 20 basis points above its level when the buyback-cap increase was announced, and has risen over 60 basis points year-to-date.
This reflects persistent supply-over-demand pressure at the long end; higher yields mean the government's borrowing costs keep climbing.
Citi argues that sustained elevated yields combined with soft early buyback performance give Treasury ample motivation to cut long-end issuance.
Even if the cut happens, will long-end yields actually come down?
Citi sees a high probability the November 4 announcement delivers the expected cut — an active adjustment in Treasury's long-end supply management.
Whether it can meaningfully reverse the long-end yield trend, however, remains to be seen.
In plain terms = issuing less debt relieves supply pressure, but long-end rates are also driven by inflation expectations, growth outlook, and other forces — the cut is a necessary condition, not a sufficient one.
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