Fitch Sees Treasury Yield Relief by 2027, With AI Spending Risks in Focus

Fitch Ratings expects the 10-year US yield to fall to 4.8% by the end of 2027, but that forecast comes with a substantial caveat: inflation pressure, competing demand for bonds and questions about AI investment could keep markets unsettled. The agency’s outlook combines an expected easing in yields with risks that could push borrowing costs higher and expose companies tied to the AI spending cycle.

The yield was 4.927% at the time of reporting, down 0.062 percentage points, or 6.2 points, after inflation data and a strong economic growth reading. That snapshot offers a market reference point, while Fitch’s end-2027 figure is a forecast. The gap between the two depends on how inflation, central bank decisions and demand for US debt develop.

Rate expectations set the backdrop

Fitch revised its forecast for the US policy rate to 4.25% through 2027, incorporating one additional rate increase before the end of 2026. The report also described a more hawkish turn at the Federal Reserve under its new chair, citing a unanimous decision to raise rates in September—the first increase in three years.

Higher interest rates can support bond yields by raising the return investors seek on newly issued debt. Inflation-adjusted rates are another part of the picture: Fitch identified their rise as a warning sign for markets. If those real rates remain elevated, the agency’s expected decline in the 10-year yield may prove harder to achieve.

Fitch’s base case is for yields to stabilise before the 10-year rate moves down to 4.8% by the end of 2027. The agency says risks are tilted upward from that forecast. That distinction matters for borrowers and investors: a central estimate describes the expected path, while the risks around it show how sensitive that path is to events and financing conditions.

Oil and bond supply could complicate the forecast

One risk is a prolonged disruption to oil supplies through the Strait of Hormuz. Fitch said a disruption lasting beyond the first quarter of 2027 could push crude prices above its baseline assumptions and add pressure to bond yields. More expensive oil can feed into broader price pressures, which may influence expectations for interest rates and the compensation investors demand to hold longer-dated bonds.

Demand for US Treasuries is also part of the outlook. Fitch pointed to narrower spreads over Japanese assets as a factor that may be contributing to a flattening in net foreign purchases of US debt. If foreign buying loses momentum, other sources of demand may need to absorb more issuance for yields to hold near the agency’s base case.

The report also identified two sources of additional competition for investor funds: the Federal Reserve’s balance-sheet reduction and rising bond issuance by AI-focused hyperscalers. The first adds securities to the pool investors must absorb as the central bank unwinds its holdings. The second would bring more corporate debt to market if large technology companies use bonds to help fund their expanding investment plans. Together, those forces could make financing more competitive and weigh on Treasury demand.

AI spending is a credit risk as well as a market theme

Fitch described rapid capital expenditure as a major credit risk heading into 2027. Its concern is that companies may be projecting AI investment at levels that won’t prove sustainable. Open-weight AI models have improved relative to frontier models, while investment plans continue to expand. That combination raises questions about whether the expected commercial returns will justify the scale of spending.

The issue reaches beyond the companies making the largest investments. A sharp reassessment of long-term prospects for earning money from AI could prompt a steep pullback in capital expenditure, Fitch said. Such a change could affect issuers across the AI value chain, including businesses that depend on continued spending by large technology companies. It could also matter to lenders and bondholders assessing whether borrowers can sustain their financing needs.

For markets, the key uncertainty is how those investment plans meet the capacity to fund them. Continued spending could support demand for financing even as it increases the supply of corporate bonds. A change in expectations could reverse that pattern quickly: less spending might ease demand for funds, while leaving suppliers and borrowers exposed to weaker expected revenue. Fitch did not quantify the potential scale of such a pullback.

The agency’s forecast therefore rests on two linked questions: whether inflation and interest-rate pressures ease enough to bring Treasury yields down, and whether the returns from AI investment keep pace with the money committed to it. Oil prices, foreign demand for US debt, central bank balance-sheet changes and borrowing by hyperscalers will all shape how that outlook develops.