10Y vs 5Y Treasury Yield

Three readings define the April 2026 setup. 10Y at 4.31 percent (April 24), 5Y at 3.94 percent (April 23), spread at 37 basis points. The 5Y is approximately 16 bps above the 2Y (3.78 percent) and 26 bps below the 10Y. The 37 bp spread sits comfortably within the post-2022 range of approximately 30 to 60 basis points.

The spread reflects normal term-premium accumulation between 5Y and 10Y. The 5Y-implied policy path averages fed funds at approximately 3.94 percent over the next 60 months. The 10Y-implied policy path averages fed funds at approximately 3.85 to 3.95 percent over the next 120 months (subtracting term premium of approximately 80-90 bps from 4.31 percent yields approximately 3.45 percent expected average). The 37 bp spread approximates the marginal term premium added by extending duration from 5 years to 10 years.

The 10Y-5Y spread isolates marginal term premium between 5-year and 10-year duration. Both maturities have meaningful term premium components, but the difference in expected-policy-path between 5Y and 10Y is small (the Fed neutral rate is the dominant assumption beyond approximately 5 years).

This means the 10Y-5Y spread is approximately equal to: term premium at 10Y minus term premium at 5Y. Term premium at 5Y is typically small (10 to 30 bps in recent years). Term premium at 10Y is typically 50 to 90 bps. The difference produces the 30 to 50 bp spread that has been the long-run average. The spread becomes more sensitive to fiscal-driven term premium shifts than to Fed policy expectations: rate-expectations changes at horizons of 5 to 10 years move the spread less than they move 2Y-5Y or 5Y-10Y differentials.

The 10Y-5Y spread is the cleanest gauge of term-premium evolution at the most-traded duration points. The 5Y is the workhorse for many fixed-income strategies (corporate credit issuance benchmark, mortgage-related curve points, swap-curve benchmarks). The 10Y is the global risk-free benchmark. The spread between them is therefore the most-watched intermediate term-premium signal.

For fixed-income portfolio managers, the 10Y-5Y is often the duration tilt decision: long the spread (long 10Y, short 5Y duration-weighted) is a bet on term-premium expansion (fiscal deficits, Fed QT, foreign demand decline). Short the spread is a bet on term-premium compression (Fed easing, recession-driven safe-haven flows into 10Y, foreign demand acceleration).

During the 2022 to 2024 inversion of T10Y2Y and T10Y3M, the 10Y-5Y spread also inverted but only briefly and shallowly. The spread bottomed at approximately negative 10 to negative 30 bps in late 2022 and early 2023, much shallower than T10Y3M's minus 188 bps trough. The shallow inversion reflects that the 5Y-10Y segment is term-premium dominated, and term premium did not invert nearly as sharply as expected-rate-path components.

The spread spent most of 2022 to 2024 in the 0 to 30 bps range, then expanded to 40 to 60 bps through 2025 as the Fed delivered cuts and term premium reasserted at the long end. The current 37 bps reflects the post-easing-cycle stabilization.

Both 10Y-5Y and 30Y-10Y are pure term-premium gauges, but they capture different segments of the long-end term-premium structure. 10Y-5Y at 37 bps captures marginal term premium from 5Y to 10Y. 30Y-10Y at 60 bps captures marginal term premium from 10Y to 30Y.

The ratio approximately holds: marginal term premium per additional duration year. From 5Y to 10Y is 5 additional years for 37 bps, or 7.4 bps per year. From 10Y to 30Y is 20 additional years for 60 bps, or 3.0 bps per year. The convex shape (front-loaded term premium) is normal: term premium accumulates faster at shorter durations because uncertainty is more concentrated near-term and decays at very long horizons.

This 7.4 versus 3.0 bps per year ratio reflects current fiscal-driven term-premium environment. In low-fiscal-risk regimes (1995-2007, 2014-2019), the per-year rates were closer (4-5 bps per year for both segments). The current divergence reflects 5Y-10Y compression alongside 10Y-30Y expansion as long-end yields rise on fiscal supply.

The 10Y-5Y spread is one leg of the classic Treasury butterfly trade: long 5Y / short 10Y / long 30Y or short 5Y / long 10Y / short 30Y, weighted to neutralize duration. Butterfly trades isolate curvature changes (rather than parallel shifts or simple slope changes).

A "richening belly" butterfly profits when the 5-10-30 segment becomes more curved (5Y and 30Y outperform 10Y). A "cheapening belly" butterfly profits when 10Y outperforms both 5Y and 30Y. The current 37 bp 10Y-5Y combined with 60 bp 30Y-10Y produces a normal-shaped curve (steepening with each additional year of duration). Sharp moves in the 10Y-5Y or 30Y-10Y segment produce butterfly opportunities for traders who can isolate curvature from level and slope.

The February 2026 Iran war affected the 10Y-5Y spread modestly. The 5Y rose approximately 10 bps from January 2026 to April 2026 on inflation expectations. The 10Y rose approximately 20 bps over the same period as fiscal-driven term-premium accumulation continued and oil-driven inflation expectations supported long end.

The spread therefore widened by approximately 10 bps from 27 bps in January to 37 bps in April. The widening is consistent with term-premium accumulation: oil-shock inflation matters more for long-end term premium than for 5Y expected-rate-path. The spread move was roughly half the size of the T10Y3M widening over the same period (Jan 51 to Apr 63 bps), which is sensible given that T10Y3M includes both Fed-stance and term-premium components.

Five regimes summarize the historical 10Y-5Y behavior. Regime 1 (2010-2014, post-GFC QE expansion): spread averaged 80-100 bps, reflecting Fed buying creating duration scarcity. Regime 2 (2014-2018, hike cycle): spread compressed to 30-50 bps as Fed unwound QE and removed long-end pressure. Regime 3 (2018-2019, late-cycle): spread compressed to 0-30 bps as recession concerns brought 10Y down. Regime 4 (2020-2021, post-recession recovery + reflation): spread widened to 60-100 bps on stimulus-driven term-premium reflation. Regime 5 (2022-2026, hike cycle then cuts then current): spread held 0 to 60 bps.

The current 37 bps is consistent with mid-cycle expansion conditions and moderate fiscal-driven term-premium accumulation. The spread is low enough to suggest term premium has more room to rise (toward Regime 1 or Regime 4 levels of 60-100 bps) if fiscal pressure persists or accelerates.

Curve traders express 10Y-5Y views through DV01-weighted Treasury futures pairs (TY for 10Y vs FV for 5Y). The DV01 ratio is approximately 1 TY per 1.5 FV contracts. Long TY / short FV benefits from spread widening (long-end term premium rising). Short TY / long FV benefits from spread compression (long-end demand or recession-driven safe-haven flows).

Typical sizing: 1 basis point of 10Y-5Y spread move equals approximately 0.5 percent of nominal-equivalent capital on a duration-matched curve trade. Daily moves average 0.5 to 2 bps; FOMC meetings and Treasury refunding announcements produce 3 to 8 bps moves; major fiscal news (debt ceiling, supply surprises) produces 5 to 15 bps moves. The spread is less liquid than 10Y-2Y or 30Y-10Y but trades cleanly enough for institutional positioning.

Five drivers will shape the 10Y-5Y spread through year-end 2026. First, Treasury refunding announcements: tilts toward longer-maturity issuance widen the spread; toward shorter compress it. Second, Fed QT pace: continued runoff supports term premium and spread widening. Third, fiscal trajectory through FY2027 budget release. Fourth, Iran war duration: resolution would compress 10Y by 15-25 bps with smaller 5Y impact, narrowing the spread to 20-30 bps.

Fifth, recession indicators (ISM, payrolls): rolling weakness would compress 10Y faster than 5Y on safe-haven demand, narrowing the spread. The base case: spread holds 25 to 50 bps range through 2026. Tail scenarios: spread above 70 bps if fiscal credibility deteriorates (US debt downgrade, foreign demand strike); spread below 15 bps in a deep flight-to-safety episode that compresses 10Y faster than 5Y.