Positive Term Premium: Implications for Treasuries, Equities and Valuations Under ACMTP10 Above Zero

When the 10-year Treasury term premium is positive and durable, the asset-price architecture reconfigures: mechanical curve steepening, Equity Risk Premium recomposition, multiple compression for long-duration equity indices, and international transmission through portfolio flows.

The 2024-2026 regime reintroduces observable elements of pricing discipline across Treasuries, long-duration equities, investment-grade corporate credit, and listed real estate — without any mechanical allocation rule following from it.

1. How a Positive Regime Changes Long-Treasury Pricing

The first observable effect of a positive-premium regime is mechanical: the Treasury curve regains structural steepening. When ACMTP10 is negative, the Adrian-Crump-Moench decomposition of the 10-year yield can produce flat or even inverted curves even when short-rate expectations are normal — the absence of duration compensation erases part of the structural steepening premium. how a negative term premium reshapes the curve maps how this works. When ACMTP10 becomes positive again and durable, the Treasury curve recovers its expected slope: the 10-year yield now incorporates both short-rate expectations and a positive duration premium, which widens the spread to short maturities.

This mechanical steepening is observable in Treasury auctions. The bid-to-cover ratios at 10-year notes, measuring total demand relative to issuance, have experienced notable oscillations since 2023 per Treasury Department releases. The ratio has dropped below 2.3 several times on 10-year auctions since 2023, an operational signal of tighter marginal absorption. Primary dealers, contractually required to submit bids at every auction, have also seen their temporary duration carry widen in mark-to-market value — which raised their carry funding cost and contributes to the transmission of the positive premium to secondary-market levels.

The second effect on Treasuries is the repricing of STRIPS — the coupon and principal components of Treasuries sold separately. The STRIPS market, whose outstanding amount exceeds 250 billion dollars per SIFMA data, is particularly sensitive to term-premium changes because these securities are entirely composed of duration. A 50-basis-point ACMTP10 move transits almost linearly to long STRIPS prices, which makes them a hedging and view-expression instrument that rate trading desks track closely.

2. ERP Recomposition: What the Damodaran Estimates Show

The 10-year Treasury yield is, by classical financial convention, the reference risk-free rate for valuing US equities. When this yield rises — and particularly when its term-premium component rises — the Equity Risk Premium must rebuild on a higher base to remain competitive. The ERP is defined as the gap between expected equity returns and the risk-free rate; its recomposition is one of the most directly measurable effects of a positive-premium regime. what the equity risk premium captures sets out the mechanism in detail.

Aswath Damodaran, professor of finance at NYU Stern School of Business, publishes a monthly implied US ERP estimate. His methodology, documented in several academic and operational publications, derives the ERP from the aggregate valuation of the S&P 500 assuming that sell-side estimates capture consensus earnings expectations. Per Damodaran’s calculations published in May 2025, the US implied ERP stood near 5.5% against a 2001-2024 historical average around 5.0% — a decompression of about 50 basis points relative to the long-term average.

This recomposition is not dramatic in absolute level but it is consistent with the theoretical reading of the positive regime. Over 2018-2024 — years during which ACMTP10 was negative — the Damodaran implied ERP had compressed to levels regularly below 4.5%, configurations that implicitly suggested equity investors were accepting historically low compensation for risk taken. The return toward 5.5% in 2025 corresponds to a partial repricing of that anomaly, parallel to the one observed on long Treasuries.

The transmission is not instantaneous and is not mechanical. Damodaran estimates show that a 50- to 100-basis-point move in the 10-year yield, when transmitted through the term-premium channel rather than the short-rate expectations channel, translates ceteris paribus into visible multiple compression. The “all else equal” condition is rarely met — expected earnings, growth, broader financial conditions play simultaneously — which dilutes the empirical transmission observable at short horizons. Transmission is more readable over several quarters than across daily sessions.

3. Pressure on Long-Duration Equity Index Multiples

Equity indices are not all equally exposed to a positive-term-premium regime. Equity duration — in the sense of the extended Gordon growth model — is longer the further future expected cash flows are. Pure growth indices (NASDAQ-100, NASDAQ Composite, technology sector indices), quality indices (MSCI Quality), and growth indices broadly have implied equity durations typically above 20 years, sometimes near 30 years for the most growth-tilted segments.

A positive term premium on 10-year Treasuries transmits more directly to these long-duration indices because it modifies the discount factor applied to distant cash flows. Empirically, forward price-to-earnings multiples on the NASDAQ-100 moved from levels regularly above 30x over 2020-2021 to levels between 22x and 26x over 2024-2025 per Bloomberg consensus calculations, a compression of about 25%. This compression coincides with the rise of the 10-year yield and with the positive return of the term premium — though single causation cannot be established (earnings growth, inflation, broader financial conditions also play a role).

Value and dividend-paying indices are less exposed. The S&P 500 Value, the iShares Select Dividend ETF, and high-dividend-yield equity ETFs display implied equity durations on the order of 12 to 15 years, which reduces sensitivity to the long-term discount factor. Over 2022-2025, multiples on these indices varied within narrower bands than growth multiples. This segmentation is not a new economic finding — it has been documented since Cornell-Damodaran (2017) — but it manifests with clarity when ACMTP10 leaves negative territory.

The effect on the Magnificent Seven (Apple, Microsoft, Alphabet, Amazon, Meta, Nvidia, Tesla) deserves mention because these seven firms accounted for about 30% of the S&P 500 market capitalization at year-end 2024 per Bloomberg data. Their implied equity duration is mixed (very long for Nvidia and Tesla, more moderate for Apple and Microsoft). The aggregate evolution of their multiples reflects a combination of strong expected growth (which dampens compression) and exposure to duration (which amplifies compression). The net result is less compression than that suffered by pure growth segments, but more than that of value segments.

4. Effects on Other Asset Classes: IG Corporate, MBS, Listed Real Estate

The investment-grade corporate bond market is mechanically exposed to a positive-term-premium regime. Reference yields (Treasury) rise, which raises the absolute funding cost of issuing firms. Long IG credit spreads, measured by Bloomberg indices, have shown a paradoxical dynamic since late 2024: when one might have expected widening in response to higher reference yields, spreads have on the contrary tightened. This move reflects increased demand for absolute yield: institutional investors — pension funds, life insurers, insurance-linked managers — seek higher absolute returns, which supports demand for long corporate credit.

The high yield market has shown more volatile dynamics, sensitive to economic-cycle conditions beyond the reference-rate effect alone. HY spreads have varied within substantial bands over 2024-2025, with no clear directional signal attributable to the term premium.

The Agency MBS market faces an asymmetric effect. MBS have optional duration — borrowers can prepay early when rates fall — which makes their sensitivity to higher-rate environments nonlinear. For central-bank policy intervention, the MBS portion of Fed QT has proved harder to execute at the originally planned pace: prepayments slowed as mortgage rates climbed (older low-coupon loans are no longer being refinanced), which lengthened the effective duration of the Fed MBS portfolio and complicated the runoff dynamic.

Listed real estate (REITs) has been one of the asset classes most directly exposed to the recomposition. REITs combine intrinsically long duration (real estate cash flows spread over decades) and high sensitivity to the discount rate applied to those cash flows. FFO (Funds From Operations) multiples of major listed REITs declined by about 15% between 2022 and 2024 per NAREIT data, with partial stabilization in 2025. This compression was particularly pronounced for office REITs (simultaneously exposed to the rates shock and to the post-Covid structural demand shock on offices) and retail REITs (exposed to the consumption cycle), while industrial and data-center REITs proved more resilient.

5. International Transmission Mechanisms

The effect of a positive US term-premium regime spills beyond the domestic perimeter. The 10-year Treasury is the reference asset of the global financial system: it anchors the valuation of other sovereign debts, the pricing of global corporate credit, and many international portfolio positions. When the US term premium evolves, the move transmits through several documented channels.

First channel: the foreign holder base. The Treasury International Capital Reports of the Treasury Department have documented since 2016 a structural reduction in the share held by China and Japan in Treasury outstanding debt — from over 33% of foreign holdings at year-end 2010 to about 13% in mid-2025 per TIC. This recomposition frees up free duration risk to domestic holders, which acts as a mirror on the demanded premium. The move does not symmetrically reverse when the premium turns positive: foreign holders gradually re-enter the Treasury market but at more attractive yield conditions than before.

Second channel: international rate spreads. US and UK defined-benefit pension funds, whose actuarial liabilities are discounted at long Treasury or Gilt rates, see their “funded status” improve mechanically as yields rise. Milliman 100 Pension Funding Index data show that the funded ratio of the 100 largest US defined-benefit plans rose from about 88% in early 2022 to over 105% in mid-2025 — a variation directly attributable to higher discount rates. This phenomenon reduces new structural duration demand from pension funds, which potentially feeds the premium rise demanded by the secondary market.

Third channel: covered interest parity deviations. Du, Tepper and Verdelhan (2018) documented that CIP deviations — the gap between the synthetic dollar cost via hedging and the direct interbank rate — respond to the US long-rate structure. A positive-term-premium regime modifies these deviations, which affects the cost for European and Japanese investors of hedging their long Treasury USD exposure. For the 2024-2026 positive regime context, these international effects diffuse with a lag of several quarters and are not linear.

Conclusion

A positive-term-premium regime on the 10-year Treasury is not an abstract quantity: it has observable and documented effects across the asset-price architecture, from Treasury auctions to long-duration equity index multiples, including corporate spreads, listed real estate, and international flows. Transmission is not mechanical and depends on many simultaneous parameters — earnings, growth, inflation, financial conditions — which dilutes short-term readability. For the underlying ACM model that produces the measure, the operational property matters as much as the theoretical one: the monthly-published ACMTP10 from the NY Fed is the instrument that allows these cumulative effects to be read across several quarters with a coherent analytical grid. No allocation rule mechanically follows from this grid.

Last updated — 23 May 2026