What is a Treasury auction, and how do you read the results?

Washington —A Treasury auction is how the US government sells new bills, notes, bonds, inflation-protected securities and floating-rate notes to investors. Bidders state the yield they will accept, Treasury fills the lowest-yield bids first until the offering is sold, and every winning bidder receives the same yield as the highest bid accepted.

The process sets the interest rate the government pays on new debt. Because the results are published within minutes, they also show how much appetite there is for US debt at current yields, and they can move prices across the bond market. The rest of this guide covers how auctions are run, how to read a results release, and, in a dated section at the end, the auctions coming up this month.

How does a Treasury auction work?

TreasuryDirect, the Treasury Department’s retail platform, breaks each auction into four steps: Treasury announces the auction, holds it, accepts bids and then issues the securities. The announcement lists the security, the amount offered, the auction, issue and maturity dates, and the closing times for bids. Treasury posts its list of upcoming announcements every Friday by 10:45 a.m. Eastern time.

The larger calendar is set at Treasury’s quarterly refunding announcement, which usually falls on the first Wednesday of February, May, August and November. At that announcement Treasury usually publishes a tentative auction schedule for the next six months and signals whether it plans to change auction sizes.

Treasury sells five kinds of marketable securities. Bills mature in one year or less and are sold at a discount to face value. Notes mature in 2, 3, 5, 7 or 10 years, and bonds in 20 or 30 years; both pay interest every six months. TIPS mature in 5, 10 or 30 years, and their principal rises and falls with inflation. Floating-rate notes mature in two years and pay a rate tied to the 13-week bill.

Who can bid, and how is the yield set?

All auctions are open to the public. Bids come in two forms. A noncompetitive bid, capped at $10 million per auction according to TreasuryDirect’s auction guide, accepts whatever yield the auction sets; individuals bidding through a TreasuryDirect account must bid this way. A competitive bid names the yield the bidder will accept, is limited to 35 percent of the offering, and must go through a bank, broker or dealer.

At the close, Treasury first accepts all valid noncompetitive bids. It then accepts competitive bids from the lowest yield upward until the offering is filled. The last bid accepted sets the high yield, and every successful bidder, competitive or not, receives that same yield. For a newly issued note or bond, the coupon is set based on that result. When the auction yield is above the coupon, the security sells below face value. When it is below, it sells above face value.

Primary dealers support the system. These are the 25 firms on the Federal Reserve Bank of New York’s current list, including Goldman Sachs, J.P. Morgan Securities and Citigroup Global Markets. The New York Fed expects them to bid on a pro-rata basis in all Treasury auctions at reasonably competitive prices, which in effect guarantees that every auction is fully covered.

How do you read Treasury auction results?

Treasury releases results shortly after bidding closes, usually at 1:00 p.m. Eastern time for notes and bonds. The figures to check first:

• High yield: the highest accepted yield, which every winning bidder receives. This is the auction’s headline price.
• Bid-to-cover ratio: the dollar amount of bids received divided by the amount accepted, excluding the Federal Reserve’s own holdings. A higher ratio means more demand for each dollar sold.
• Allotted at high: the percentage of bids placed exactly at the high yield that were filled. A low figure means many bids clustered at the cutoff.
• Low and median yields: the lowest bid accepted and the midpoint of accepted bids, which show how widely bids were spread.
• Bidder breakdown: the shares won by primary dealers, direct bidders (who bid for their own account directly with Treasury) and indirect bidders (who bid through an intermediary such as a dealer). A small dealer share means end investors bought most of the issue, which is generally read as strong demand.
• Tail or stop-through: traders compare the high yield with where the security traded in the when-issued market just before the deadline. A high yield above that level (a tail) points to weak demand; one below it (a stop-through) points to strong demand. Treasury’s release does not report this comparison.
• SOMA amount: securities the Fed’s System Open Market Account takes when its own holdings mature. These are added on top of the amount offered to the public.

What did the latest 10-year Treasury auction show?

The October 7, 2026 sale of $39 billion in 10-year notes, a reopening of an existing issue, is a good example. Treasury auction data show about $108.1 billion of bids excluding the Fed’s holdings, for a bid-to-cover ratio of 2.77. The high yield was 5.300 percent, against a median of 5.255 percent and a low of 4.300 percent, and 57.6 percent of bids at the high yield were filled.

Because the note was a reopening, its 4.625 percent coupon was already fixed. With the auction yield above the coupon, the note sold at 94.864261 per $100 of face value. Primary dealers bought $984 million, about 2.5 percent of the competitive bids accepted, down from 13.4 percent at the February 11 auction. Indirect bidders took about 80.3 percent, and the Fed’s account added $926 million on top of the $39 billion offered.

In the 13 10-year auctions from October 2025 to October 2026, the bid-to-cover ratio ranged from 2.39 to 2.77. The two most recent sales, in September and October, had the highest ratios in that period, even as yields climbed.

Upcoming Treasury auctions and yields (as of November 6, 2026)

At its quarterly refunding announcement on November 4, Treasury said it will sell $125 billion of securities to refund about $97 billion of notes and bonds maturing on November 15, raising about $28 billion in new cash. The schedule:

• 3-year note, $58 billion: Monday, November 9, 1:00 p.m. ET
• 10-year note, $42 billion: Tuesday, November 10, 1:00 p.m. ET
• 30-year bond, $25 billion: Thursday, November 12, 1:00 p.m. ET
• All three settle on Monday, November 16

Treasury said it expects to keep note, bond and floating-rate note auction sizes unchanged for the next several quarters. It also said that starting in March 2027 the 7-year note will become a quarterly new issue with two reopenings, the same pattern the 10-year already follows. The next refunding announcement is scheduled for February 3, 2027.

“In considering any changes, Treasury will be guided by the objective of financing the government at the lowest cost over time.”

Market yields have fallen since the October reopening. At the close on November 5, the 10-year Treasury yield was 4.837 percent, down about 6 basis points on the day and roughly 46 basis points below the October auction’s high yield. In weekly readings, the 10-year yield peaked at 5.293 percent on September 30. The 30-year yield stood at 5.251 percent, the 5-year at 4.608 percent and the 13-week bill at 3.987 percent.

For the November 10 sale, the main things to watch are whether the bid-to-cover ratio stays near the high levels of September and October, whether the dealer share stays small, and how the high yield compares with where the new note trades just before 1 p.m. Since August and November are new-issue months for the 10-year, the August 12 auction is the closest comparison: it sold $42 billion at 4.683 percent with a bid-to-cover of 2.53, and the Fed’s account took an extra $10.6 billion.