U.S. long-dated Treasury debt is demanding its highest borrowing costs in years, even as traders have reduced bets on another Federal Reserve rate increase in September. A $25 billion auction of 30-year bonds cleared at a 5.216% high yield on Thursday, the highest level for that maturity since 2001, following a $42 billion 10-year note sale at 4.683% on Wednesday, the highest since 2007.
The consecutive auctions have focused market attention on a growing divide in the Treasury market: expectations for near-term Fed policy have softened, but yields at the far end of the curve remain elevated as the government finances large deficits and buyers seek more compensation for holding debt over decades.
The 30-year auction’s stop-out yield came in about 0.4 basis points above the prevailing pre-sale market level, a result known as a tail. A tail generally indicates that buyers required a slightly higher yield than expected to absorb the new supply. The 10-year auction also tailed, though by a narrower 0.1 basis points.
Treasury yields moved unevenly after the 30-year sale, with the benchmark 30-year yield ending roughly four basis points lower on the day. Yet the shape of the yield curve continued to point to pressure on longer maturities. The gap between five-year and 30-year yields widened to its largest level since May, leaving the curve steeper.
Buyer demand shifted toward primary dealers
Headline demand for the 30-year bonds was not weak. The auction received bids worth 2.39 times the amount offered, above the 2.36 average across the previous six comparable 30-year sales, according to Treasury auction results.
The composition of demand was less reassuring for some market participants. Indirect bidders, a category that often includes foreign institutions and large domestic money managers placing bids through intermediaries, took 66.8% of the sale. That was down from 77.7% in July and slightly below the six-auction average of 67%.
Primary dealers absorbed 11.5% of the bonds, up 1.5 percentage points from July and above their 10.6% recent average. Dealers are obligated to participate in Treasury auctions and typically distribute securities into the secondary market afterward. A larger dealer allocation does not by itself signal a failed auction, but it can indicate that end-user demand did not cover as much of the supply at the auction’s clearing price.
The figures help explain why the market is treating supply conditions as a continuing source of long-end pressure rather than a one-day event. Treasury issuance has expanded sharply as federal borrowing requirements rise, and each auction tests the price at which private buyers will hold additional duration — the sensitivity of a bond’s price to changes in interest rates.
Fed expectations have not pulled down long-term yields
Interest-rate markets changed direction after the latest U.S. consumer price data. Traders put the probability of a September Fed rate increase at about 35%, down from roughly 50% earlier in the week.
That adjustment would ordinarily support lower Treasury yields across maturities. The limited response from 10-year and 30-year bonds suggests that long-term rates are being shaped by forces beyond the expected path of the Fed’s policy rate.
One of those forces is term premium, the additional yield demanded by buyers for holding a long-term bond rather than repeatedly rolling over short-term securities. Term premium can rise when markets face greater uncertainty over inflation, debt issuance, fiscal policy or the future supply-demand balance for government bonds.
The Treasury has also modified the language in its quarterly borrowing guidance. It now says it is “considering possible adjustments” to coupon-bearing and floating-rate issuance, replacing earlier wording that it was “continuing to evaluate future potential increases.” Market expectations have focused on the possibility that additional issuance would be concentrated in the two- to seven-year range, extending Treasury’s recent preference for funding more of its needs through bills and shorter-dated debt.
That approach can limit immediate pressure on 10-year and 30-year supply, but it also leaves the government more exposed to refinancing at prevailing rates as shorter securities mature.
Fitch sees a wider deficit in 2026
Fitch Ratings affirmed the United States at AA+ with a stable outlook on Thursday, while warning that the federal deficit as a share of the economy is expected to widen in 2026. The ratings agency projects a deficit equal to 7.4% of gross domestic product, citing tax cuts and tariff rebate measures.
Federal interest costs have become a larger component of the fiscal picture. U.S. debt stands at about $31 trillion, roughly twice its 2018 level, while interest costs during the current fiscal year have reached $1.17 trillion, up 15% from a year earlier, according to the figures cited in the Treasury data.
The government recorded a $1.8 trillion budget shortfall during the first 10 months of the fiscal year. Sustained deficits require regular issuance across bills, notes and bonds, creating a persistent flow of securities for the market to absorb.
Higher yields also pass through to households and companies. The average 30-year fixed U.S. mortgage rate reached 6.69% last week, its highest level since July 2025. Corporate borrowers face a similar effect as Treasury yields form the base rate used to price many loans and bond issues.
Crypto markets face a higher return hurdle
For cryptocurrency traders, the Treasury market’s message is less about a direct prediction for token prices than about competition for capital and tighter financial conditions. A yield above 5% on a 30-year U.S. government bond gives portfolio managers a substantially higher return from traditional fixed income than they received during the low-rate period.
Bitcoin and other major cryptoassets do not generate contractual interest payments in the way bonds do. Their appeal can therefore weaken when cash instruments and government securities offer higher yields, particularly for traders deciding how much exposure to allocate to volatile assets.
The effect is rarely linear. Crypto prices also react to liquidity conditions, exchange-traded fund flows, regulation, network activity and broader risk appetite. But a steepening Treasury curve and resilient long-term yields raise the hurdle for assets whose expected returns depend largely on price appreciation.
The latest auctions leave that hurdle in place. Even with markets assigning lower odds to a September Fed increase, long-term Treasury buyers are demanding yields near multi-year highs to finance the U.S. government’s expanding borrowing needs.
Rising yields and deficits reshaping markets? Learn how interest rates influence Bitcoin and crypto in today’s macro-driven landscape.
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