Implied Cap Rate and Premium/Discount to NAV

Introduction

The standard cap rate divides NOI by property value. The implied cap rate keeps the same numerator but swaps the denominator for enterprise value, the value the stock market is putting on the REIT's portfolio right now. That single substitution turns a share price into a property-level cap rate, and once you have it you can lay it next to observed private-market cap rates for comparable assets. The gap between the two is where the signal lives. When the implied cap rate sits well above private cap rates, the listed REIT is trading at a discount to its underlying net asset value; when it sits below, the REIT trades at a premium. Few numbers in REIT analysis are watched more closely.

The spread was historically wide through 2022-2024 as listed REITs repriced quickly to the rate environment while private appraisal cap rates lagged. Per Nareit, the public-private cap rate spread reached 243 basis points at its Q3 2022 peak and remained elevated through 2024, closing the year at roughly 120 basis points on a market-wide basis with meaningful sector dispersion: industrial REITs at 169 bps, apartments at 141 bps, office at 84 bps, retail at 80 bps. The persistent spread is the structural reason public-to-private take-private activity has been so concentrated since 2023 and why sponsor REIT acquisitions have outpaced listed-REIT-to-listed-REIT consolidation during the same window.

The implied cap rate formula:

Enterprise value for REIT purposes equals market capitalization (share price times diluted shares) plus debt at face value plus preferred stock at liquidation preference plus minority interests at proportionate value, minus cash. This is the same EV build used in the corporate-finance valuation framework, applied to the REIT's listed-market price rather than a private appraisal.

The choice of NOI period matters more than candidates expect. Trailing 12-month NOI uses income the portfolio has actually earned; forward 12-month NOI uses projected income that bakes in occupancy and rent-growth assumptions. Most institutional analysts run the calculation on forward NOI, because the private cap rates they are comparing against are themselves forward-looking. Mixing a trailing numerator against a forward comp introduces a spread that is an artifact of the periods, not a real premium or discount.

Implied Cap Rate

The cap rate the listed market implicitly applies to a REIT's NOI, calculated as forward NOI divided by enterprise value. A REIT with a 6.5% implied cap rate while comparable private-market transactions clear at 5.5% is trading at a meaningful discount to the underlying property value; the inverse signals a premium.

A Worked Implied Cap Rate Calculation

Consider a multifamily REIT with $5 billion of forward NOI, 100M diluted shares trading at $550 per share (market cap of $55 billion), $35 billion of debt at face value, $2 billion of preferred stock at liquidation preference, $1 billion of minority interests, and $1 billion of cash. Enterprise value = $55B + $35B + $2B + $1B - $1B = $92 billion. Implied cap rate = $5 billion / $92 billion = 5.43%.

Compare to private market: recent Class A multifamily transactions in the REIT's submarkets cleared at a weighted-average cap rate of approximately 4.75%. The spread between implied (5.43%) and private (4.75%) is 68 basis points, suggesting the listed REIT trades at a modest but meaningful discount to its private-market underlying value. A sponsor looking at the same REIT might offer a take-private bid that priced the equity at a cap rate closer to 5.10% (still above private, but tighter than the implied 5.43%), capturing the cap-rate-spread compression as the source of value creation.

The reason the spread never quite closes comes down to how the two markets set price. Listed REITs reprice in real time as interest rates, growth expectations, and risk premia shift; private real estate prices through appraisal-based marks that update quarterly or annually and lag the listed market by 6 to 18 months. The same cap rate drivers move both markets, just on different clocks, so the two converge over time without the lag ever fully disappearing.

Public-Private Cap Rate Spread

The difference, in basis points, between the implied cap rates of listed REITs and the cap rates observed in private real estate transactions for similar properties. Listed markets reprice in real time; private appraisal marks lag by 6 to 18 months, creating spreads that compress over time but rarely vanish. The spread is the primary signal that drives sponsor take-private activity.

The spread compression reflects two simultaneous forces: listed REIT prices rising as growth expectations stabilize and rate-cut prospects emerge, and private appraisal cap rates widening as private-market transactions reset to higher cap rates. The convergence is uneven across sectors because each property type's specific fundamentals (industrial demand normalization, office structural headwinds, multifamily supply absorption) shape the relative pace.

There is no single REIT implied cap rate. Each property type carries its own spread because each tracks its own fundamentals, and the dispersion across sub-sectors is often wider than the market-wide average suggests. A reader who anchors on the blended number will misread any individual name. The picture by sub-sector:

This is also where the metric earns its place in an interview. Anyone can recite that implied cap rate is NOI over enterprise value; the answer that holds up explains why you swap property value for EV in the denominator, reads the spread to private cap rates as the NAV premium-or-discount signal, and ties it to the take-private cycle: the Q4 2024 market-wide spread of 120 bps was wide enough to keep sponsors active, while a spread that compresses toward 50 bps closes the arbitrage and stalls the deal flow. If you can name a deal that fits, Blackstone's 2024 acquisitions of AIR Communities and Retail Opportunity Investments both priced off exactly this spread.