What Are REITs? Real Estate Investment Trusts Explained

REITs — Real Estate Investment Trusts — are companies that own, operate, or finance income-generating properties. They give everyday investors access to the returns of institutional-grade real estate, without the need to buy, manage or directly finance a single building. If you have ever wanted a slice of a shopping centre, a data centre, or a hospital without the hassle of a mortgage, a REIT is the instrument designed for exactly that.

1. What Exactly Is a REIT?

A REIT (Real Estate Investment Trust) raises capital from multiple investors — much like an investment fund — and uses that capital to build or acquire a portfolio of income-generating properties. Once listed on a stock exchange, shares in the REIT can be bought and sold just like ordinary equities, making real estate one of the most liquid asset classes available to retail investors.

In many countries, the term varies slightly. In Portugal, Spain and other European jurisdictions, the equivalent structures are known as SIGIs (Sociedades de Investimento e Gestão Imobiliária). In France they are called SIICs; in Germany, G-REITs. Despite the local branding, the mechanics are largely the same: pooled capital, a diversified property portfolio, and a high mandatory dividend payout.

REITs tend to specialise in one property sector, such as shopping centres, retail parks, hotels and resorts, or healthcare facilities. However, diversified REITs hold a mix of property types, and specialised REITs target niche categories like data centres, cell towers, self-storage facilities, and timberland.

2. How REITs Work: The Business Model

Most equity REITs operate on a deceptively simple model: they own properties, lease the space to tenants, collect rents, deduct operating costs, and distribute the remaining income as dividends. The larger the portfolio and the higher the occupancy rate, the more income flows to shareholders.

Mortgage REITs (mREITs) operate differently. Rather than owning physical buildings, they act as lenders — providing financing to property owners and operators. Their income comes from the spread between the interest earned on the loans they extend and the cost of the capital they borrow to fund those loans. This spread-based model makes mREITs more sensitive to interest rate movements and more vulnerable to credit defaults, which is why they are generally considered riskier than equity REITs.

A third category, Hybrid REITs, combines both approaches — holding physical property while also extending mortgage financing.

3. REIT Qualification Requirements

To qualify as a REIT under US law (and most global equivalents), a company must satisfy a strict set of asset, income, and distribution tests. These rules are what make REITs structurally different from regular property companies and are the foundation of their income appeal:

4. Advantages of Investing in REITs

REITs offer a distinctive mix of income generation, diversification, and accessibility that few other instruments can match:

5. Historical Performance

Over the long run, REITs have delivered competitive risk-adjusted returns. A three-year study covering November 2017 to November 2020 found that the average annual REIT return reached 11.25% — well above both the S&P 500 (9.07%) and the Russell 2000 (6.45%) over the same period.

Historically, income-seeking investors have also earned higher yields from REITs than from bonds, the traditional safe-haven asset class. That said, REITs are not bonds. During periods of economic shock, the correlation between REIT prices and equities rises sharply. The iShares Dow Jones US Real Estate ETF (IYR) delivered a brutal -20.35% return in 2007, followed by a -40.03% collapse in 2008 as the property bubble burst.

6. Risks of Investing in REITs

Beyond the disadvantages already outlined, several structural risks deserve specific attention before allocating to REITs:

• Interest rate risk: REITs tend to underperform when rates rise sharply. Higher rates increase borrowing costs for the REIT itself, compress property valuations, and make the relative yield of REIT dividends less attractive versus risk-free alternatives like government bonds.
• Sector concentration risk: Single-sector REITs are heavily exposed to the fortunes of that property type. The pandemic-era collapse of hotel and retail REITs demonstrated how quickly occupancy and rental income can evaporate under sector-specific stress.
• Leverage risk: Most REITs carry significant debt to finance their portfolios. In a credit tightening environment, refinancing risk increases and dividends may need to be cut.
• NAV discount/premium volatility: REIT share prices can trade well above or below the underlying net asset value of their properties, creating valuation risk that doesn't exist with direct property ownership.

7. How to Invest in REITs

REITs are accessible through any standard brokerage account — they trade on major exchanges exactly like equities. The three main routes are individual REIT stocks, REIT ETFs, and REIT mutual funds.

REIT ETFs

ETFs offer the simplest, most diversified REIT exposure. One purchase spreads risk across dozens of individual REITs. The most widely used include:

Individual REITs

For investors who prefer to select specific sectors or geographies, individual REIT stocks offer targeted exposure. A key metric to evaluate is FFO (Funds from Operations) — a REIT-specific measure of cash flow that strips out depreciation and gains/losses on property sales, giving a truer picture of recurring income than standard EPS. Other useful metrics include the dividend yield, price-to-FFO ratio (the REIT equivalent of P/E), and the occupancy rate.

Some of the most widely held individual REITs include: