What Is a REIT? Real Estate Investment Trusts Explained

How a REIT Operates

A REIT collects rent from tenants (or interest from borrowers, in the case of mortgage REITs), pays operating expenses and debt service, and distributes what remains to shareholders. The structural sequence is straightforward:

1. The REIT owns a portfolio of real properties or, less commonly, a portfolio of mortgages and mortgage-backed securities.
2. Tenants pay rent under leases of varying duration; borrowers pay interest under the terms of the underlying loans.
3. The REIT meets its operating costs and debt service from that gross income.
4. At least 90% of the resulting taxable income is distributed to shareholders, typically on a quarterly schedule.

Because the distributed income is taxed at the shareholder level rather than at the REIT level, the structure largely eliminates the double taxation that ordinarily applies to dividends from corporate equities. This is the substantive economic reason the REIT vehicle exists. Congress created it in 1960 to give ordinary investors access to the kind of diversified real estate portfolio that, until then, was effectively the province of institutional capital.

Categories of REIT

Equity REITs account for roughly 95% of the U.S. REIT market by capitalisation and are what most investors mean when they refer to REITs without further qualification. They own buildings and collect rent. Mortgage REITs are a different animal: they are leveraged spread businesses, more sensitive to the slope of the yield curve than to the underlying real estate, and the analyst should generally treat them as financials rather than as real estate exposures.

Sectors Within Equity REITs

• Residential — Apartment complexes, single-family rentals, manufactured housing. Demand is comparatively stable through the cycle.
• Office — Office buildings and business parks. Cyclical, with occupancy declining in recessions and, more recently, structurally pressured by remote-work adoption.
• Retail — Enclosed malls, strip centres, outlet centres. The sector has been under sustained pressure from e-commerce, though well-located, well-tenanted properties — Simon Property Group (SPG) is the standard example, having traded between roughly 9× and 14× FFO across the past decade — have continued to generate cash.
• Industrial — Warehouses, distribution centres, last-mile logistics. The sector benefited materially from the structural growth of e-commerce.
• Healthcare — Hospitals, medical office buildings, senior housing, life-science laboratories. Demand is comparatively recession-resistant.
• Hospitality — Hotels and resorts. The most cyclical sub-sector; revenue per available room is highly sensitive to discretionary travel demand.
• Data centres — Server facilities. A growth sector driven by cloud computing, machine-learning workloads, and streaming.
• Specialty — Cell towers, timberlands, infrastructure assets, self-storage. Often the strongest performers historically, owing to favourable supply-and-demand structures.

Why Investors Hold REITs

• [[What Is a Dividend Yield?|Dividend yield]]. REIT yields cluster between 3% and 6%, well above the S&P 500 average of approximately 1.5%. Realty Income (ticker: O), which has paid a monthly dividend continuously since 1969 and raised it for more than a hundred consecutive quarters, is the canonical example of yield discipline within the sector.
• Diversification. Returns from real estate exhibit historically low correlation with broad equity and fixed-income returns. The marginal addition of REITs to a balanced portfolio has, in most observable periods, reduced overall volatility.
• [[What Is Inflation?|Inflation]] sensitivity. Rents, in commercial leases, are commonly indexed to inflation or reset on lease rollover, which allows REIT operating income to track price levels with a lag. The pass-through is imperfect, but the empirical record supports treating equity REITs as a partial inflation hedge.
• Liquidity. Direct ownership of real property is highly illiquid; transactions take months and carry substantial frictional cost. REIT shares trade on exchanges and settle on standard equity timelines.
• Professional management. Property selection, leasing, redevelopment, and capital allocation are handled by managers whose performance is observable through the quarterly disclosures.

Evaluating REITs: The Appropriate Metrics

The standard equity-research metrics, applied without adjustment, mislead the analyst on REITs. The first reason is depreciation. GAAP requires REITs to depreciate their buildings on a fixed schedule, generating a large non-cash expense that reduces reported net income substantially. In economic substance, well-maintained real estate frequently appreciates rather than depreciates, so the GAAP figure understates the cash-generating capacity of the portfolio. The industry developed alternative measures to address this, and the careful analyst should use them.

Two practical points warrant emphasis. First, the [[What Is the P/E Ratio?|P/E ratio]] is not the appropriate multiple for REITs. Because depreciation distorts net income downward, the GAAP P/E systematically overstates how expensive a REIT looks; Price/FFO and Price/AFFO are the correct references. Second, the analyst should examine the debt maturity schedule, not only the aggregate debt level. A REIT with a debt-to-equity ratio of 0.8× but a wall of refinancings due in the next eighteen months is in a substantially weaker position than one with a 1.0× ratio and laddered maturities; the headline leverage figure can be reassuring and the underlying position, on closer inspection, can already be forced.

REITs and Interest Rates

The sensitivity of REITs to [[The Federal Reserve and Interest Rates|interest rates]] is among the more reliable empirical regularities in the asset class, and it operates through two distinct channels.

• Yield competition. When risk-free yields rise, the relative attractiveness of REIT distributions declines. A 4% REIT yield with property-level risk is a different proposition when the ten-year Treasury pays 5% than when it pays 1.5%. Capital flows reflect that arithmetic.
• Cost of capital. REITs finance acquisitions and developments substantially with debt. Higher rates raise the marginal cost of that debt, compress development spreads, and reduce the cash available for distribution. The effect is largest at the most leveraged operators and at REITs whose lease structure does not allow rents to reset quickly enough to absorb the higher financing cost.

The historical pattern is that REITs underperform the broad equity market during aggressive Federal Reserve tightening cycles and outperform during easing cycles. The relationship is not mechanical — sector composition, valuation entry point, and the underlying real-economy backdrop all matter — but it is durable enough that the analyst should treat the path of policy rates as a primary input to any REIT thesis.

REIT ETFs

For investors seeking diversified REIT exposure without single-name selection risk, several [[What Are ETFs? Exchange-Traded Funds Explained|ETFs]] cover the sector at low cost:

• VNQ (Vanguard Real Estate ETF). Broad U.S. REIT exposure across approximately 160 holdings. Expense ratio of 0.12%.
• XLRE (Real Estate Select Sector SPDR). The S&P 500 real estate constituents only, approximately 30 holdings. Expense ratio of 0.10%.
• VNQI (Vanguard Global ex-U.S. Real Estate ETF). International REIT exposure for investors seeking geographic diversification beyond the U.S. market.

The single-fund approach captures the asset-class exposure efficiently. Active selection within the sector requires substantially more work and, candidly, has produced mixed empirical results: a meaningful body of academic research, including work consistent with the broader Fama-French literature on equity factors, suggests that within REITs the cross-sectional return dispersion is harder to forecast than the headline narratives imply.

A Practical Note on Coverage

When I covered financials at Fidelity in the mid-2000s, the REIT analyst on the floor had a working rule on mortgage REITs that I have not seen reason to revise: never own one through a Fed regime change, regardless of how attractive the spread looks at the entry point. The reasoning was prosaic. The book is leveraged five to nine times, the duration of the assets and the liabilities rarely match, and the apparent net-interest-margin can move from comfortable to negative in two reporting periods. Equity REITs are a different proposition — the underlying asset is a building with a tenant under a multi-year lease, not a portfolio of mortgages refinanced at the prevailing rate — and the analytical work for the two sub-sectors is largely non-overlapping.

Bounds of the Framework

What the REIT framework does not do is exempt the investor from the underwriting work that any equity position requires. The 90% distribution rule guarantees a high payout; it guarantees nothing about the quality of the underlying portfolio, the discipline of capital allocation by the manager, or the sustainability of the rent roll under adverse conditions. A 6% yield on a deteriorating property base is a return of capital, not a return on it. The metric to anchor on is AFFO and its trajectory; the dividend follows from that, and the price, eventually, follows the dividend.

See also: [[What Is a Dividend Yield?]] · [[What Are Dividends?]] · [[The Federal Reserve and Interest Rates]] · [[What Is Inflation?]] · [[What Are ETFs? Exchange-Traded Funds Explained|ETFs]] · [[What Is the P/E Ratio?]]