30Y vs 10Y Treasury Yield

Three trading days in April 2026 illustrate the spread's stability: April 2 saw 10Y at 4.31 percent, 30Y at 4.88 percent (57 bp spread). April 17 saw 10Y at 4.26 percent, 30Y at 4.88 percent (62 bp spread). April 24 saw 10Y at 4.31 percent, 30Y at 4.91 percent (60 bp spread). The narrow range reflects the absence of major catalysts: no FOMC meeting, no Treasury refunding announcement, and stable fiscal projections.

The 60 basis-point spread is approximately 15 basis points above its November 2024 low of 45 bps and 20 basis points below its August 2025 peak of 80 bps. The 12-month average is approximately 65 basis points. The current level prices in moderate fiscal concerns, modest Fed easing expectations (two to three cuts in 2026 base case per Schwab outlook), and stable inflation expectations.

The 30Y-10Y spread isolates pure term premium at the long end. The 10Y yield contains a 10-year expected-policy-path component plus 10-year term premium. The 30Y yield contains a 30-year expected-policy-path component plus 30-year term premium. The spread equals the difference between 30Y term premium and 10Y term premium plus the difference between 30Y and 10Y expected-policy-path components.

In practice, expectations for Fed policy 10 to 30 years out are roughly equal (the Fed neutral rate is the dominant assumption beyond 10 years). So the spread approximates the marginal term premium added by extending duration from 10 years to 30 years. Higher 30Y-10Y spread indicates higher long-end term premium; lower spread indicates lower term premium. Currently the marginal long-end term premium is approximately 60 basis points.

The historical pattern reveals the regime shifts. From 1960 to 2007, the 10-year term premium itself averaged approximately 150 basis points. From 2009 to 2021, the 10-year term premium fluctuated between negative 100 and positive 50 basis points, a dramatic compression driven by Fed QE absorbing duration.

The 30Y-10Y spread followed a similar pattern. From 1990 to 2007, the spread averaged 75 to 100 basis points (peaking at 200+ bps during the 1992 and 2003 steepenings). From 2009 to 2021, the spread compressed to 30 to 60 basis points during QE programs but spiked above 100 bps during taper tantrums (2013) and reflation episodes (2020 to 2021). Post-2022, the spread has stabilized in the 50 to 80 bps range as fiscal-driven supply pressures and Fed QT have rebuilt long-end term premium.

Three structural factors drive the post-2022 spread behavior. First, fiscal deficits: US fiscal deficits projected to grow above $2 trillion in FY 2027 require substantial Treasury issuance. The TBAC (Treasury Borrowing Advisory Committee) has tilted issuance toward longer maturities, increasing supply pressure at 20Y and 30Y points.

Second, Fed QT: the Fed continues balance-sheet runoff, removing the marginal long-duration buyer. Fed Treasury holdings peaked near $5.8 trillion in 2022; current holdings approximately $4.4 trillion. Each $100 billion of Fed runoff translates roughly to 1 to 2 basis points of additional 30Y term premium.

Third, foreign demand moderation: foreign official-sector Treasury holdings as a percentage of total marketable Treasuries declined from 36 percent in 2014 to 23 percent in 2025. Reduced price-insensitive foreign demand at the long end raises required term premium for domestic buyers.

The 30Y bid comes primarily from two natural buyers. First, US pension funds: defined-benefit pension liabilities have effective duration of 15 to 25 years. Liability-driven investing (LDI) requires pension funds to hold long-duration assets to hedge liability discount-rate risk. The pension LDI bid for 30Y Treasuries is structural and price-insensitive within reasonable ranges.

Second, life insurers: variable and fixed annuity liabilities have similar long-duration profiles. Combined US pension and life insurer 30Y Treasury demand is approximately $80 to $100 billion per year. The 2022 to 2023 yield rise triggered LDI demand acceleration as pension funded ratios rose to 100+ percent and pension de-risking programs locked in higher discount rates.

This structural bid creates a 30Y floor below approximately 4.5 percent in the current regime. Each move below 4.5 percent triggers LDI buying that limits further yield decline.

A second technical driver of 30Y-10Y dynamics is mortgage convexity hedging. The US agency MBS market totals approximately $9 trillion, with effective duration that varies based on interest rate levels. When yields fall, MBS duration shortens as prepayments accelerate; when yields rise, MBS duration extends as prepayments slow.

Mortgage portfolio managers (Fannie, Freddie, banks holding MBS) hedge convexity by buying duration when yields fall (to maintain target portfolio duration) and selling duration when yields rise. The hedging concentrates at 7 to 10Y points (the empirical duration of MBS in normal regimes), but spillover effects reach 30Y. Convexity-driven 30Y selling during 2022 to 2023 contributed approximately 30 to 50 basis points to long-end yield rise, accentuating spread widening.

The 30Y-10Y spread typically widens entering recession and during early recession. Three mechanisms: first, expected Fed cuts pull the entire curve lower but the front end falls more, steepening the curve from the short end. Second, recession risk increases credit-spread demand and flight to safety bids the 30Y. Third, fiscal deficits widen during recessions, increasing long-end supply.

The 2007 to 2009 episode showed this clearly: 30Y-10Y spread widened from 0 bps in mid-2007 to 100+ bps by early 2009. The 2020 COVID recession saw the spread widen from 30 bps in February 2020 to 80 bps by August 2020. The current spread of 60 bps is consistent with mid-cycle expansion conditions, not imminent recession.

The 30Y-10Y spread is a fundamentally different signal from the 10Y-2Y spread, which is the more famous recession-leading indicator. The 10Y-2Y spread reflects expectations of Fed policy 1 to 5 years out: when 2Y yields rise above 10Y yields (inversion), the market expects Fed cuts within 2 to 3 years.

The 30Y-10Y spread is largely independent of policy-rate expectations within 5 years. Both spreads can move in opposite directions. During 2022 to 2023 the 10Y-2Y spread inverted (Fed hiking cycle pricing in eventual recession-driven cuts), while 30Y-10Y stayed positive (long-end term premium rebuilding). In April 2026 the 10Y-2Y spread is approximately positive 70 bps (uninversion) and 30Y-10Y is positive 60 bps, with the curve fully positive.

Curve traders express 30Y-10Y views through duration-weighted long-short Treasury positions, futures spreads (TY versus UB on the CME), or interest-rate swaps. The DV01-weighted short 30Y / long 10Y position benefits from spread widening (long-end term premium rising). The opposite trade benefits from spread compression.

The trade is non-directional on overall yield level. A 50 basis-point parallel shift in the curve (10Y up 50 bps and 30Y up 50 bps) produces zero PnL on a properly weighted spread trade. The trade only profits or loses based on relative movement: 30Y up 60 bps and 10Y up 50 bps produces 10 bps of spread widening regardless of what happens to absolute levels.

Typical position sizing: 1 basis point of spread move equals approximately 0.5 percent of nominal-equivalent capital on a duration-matched curve trade. Daily spread moves average 1 to 2 basis points; major catalysts (FOMC, Treasury refunding) produce 5 to 10 bps moves.

Five drivers will determine the 30Y-10Y spread trajectory through year-end 2026. First, FOMC meetings: each meeting produces 2 to 5 bps spread moves depending on dot-plot revisions. Second, Treasury refunding announcements: quarterly TBAC announcements signal coupon-versus-bill issuance composition; tilts toward 20Y and 30Y issuance widen the spread. Third, fiscal trajectory: the FY2027 budget outlook (released October 2026) will set deficit expectations.

Fourth, foreign demand evolution: Japan and China reserve management decisions, especially after Iran war resolution. Fifth, recession indicators: ISM, payrolls, claims trajectory through Q2 and Q3 2026. ISM rolling below 50 with payrolls negative would produce 20 to 40 bps spread widening on flight-to-safety dynamics.

The base case: spread holds in 50 to 80 bps range through 2026 absent major fiscal shock or recession trigger. Tail scenarios: spread above 100 bps if fiscal credibility deteriorates (US debt downgrade, foreign demand strike), or spread below 30 bps in a deep flight-to-safety episode.