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Lesson 9 of 12 · Free

Real estate and telecommunications as sectors

Analyse listed property and telecom companies with sector-specific metrics such as implied yield, NAV discount, ARPU, churn and capex intensity.

Author: Moustafa HijaziContent reviewed: 2026-10-305 min readSelf-study course

What you will learn

  • Where real estate and telecommunications sit in sector classifications
  • How to calculate the implied property yield and the discount to net asset value
  • Which telecom metrics matter: ARPU, churn, capex intensity and leverage
  • Why both sectors are sensitive to interest rates and refinancing

Explanation

REIT structures, FFO and property investing for individuals are covered in the course "Real Estate & REITs". This lesson treats listed real estate and telecoms as sectors to compare with the rest of the stock market.

Classification

In GICS (introduced in lesson 1), real estate has been a separate sector since 2016; before that it was part of financials. It includes equity REITs and real estate management and development companies. Mortgage REITs, which lend money rather than own buildings, remain in financials. Telecommunication services are part of the communication services sector, which was created in 2018 and also contains media and interactive internet companies. So a "communication services" index is not a pure telecom index; check its largest holdings.

What the two sectors share

Both own long-lived physical assets (buildings, fibre networks, mobile towers), produce relatively stable recurring income (rents, monthly subscriptions), and finance a large part of these assets with debt. As a result, both are sensitive to interest rates: higher rates raise interest costs at refinancing and make their steady cash flows less attractive compared with bonds.

Real estate sector metrics

  • Net operating income (NOI): rental income minus property operating costs, before interest and taxes.
  • Appraisal yield: NOI divided by the value that independent valuers put on the properties.
  • Implied yield: NOI divided by the enterprise value (EV = market capitalisation + net debt) that the stock market pays. If the implied yield is higher than the appraisal yield, the market values the buildings below the valuers.
  • Net asset value (NAV): property value minus net debt. A share price below NAV per share is a discount to NAV.
  • Loan-to-value (LTV): net debt divided by property value.
  • Debt maturity profile: how much debt must be refinanced each year. A large amount due soon is called a refinancing wall.

Sub-sectors behave very differently: logistics, residential, offices, retail and data centres face different demand trends.

Telecom sector metrics

  • ARPU (average revenue per user): service revenue divided by the average number of customers, usually per month.
  • Churn: the percentage of customers who leave in a period. High churn means high spending on winning replacements.
  • Capex intensity: capital expenditure divided by revenue. Building fibre and 5G networks and buying spectrum (licences to use radio frequencies) is expensive.
  • EBITDA minus capex: earnings before interest, taxes, depreciation and amortisation minus capital expenditure, a simple proxy for the cash the network produces before interest, taxes and spectrum payments.
  • Net debt / EBITDA: a common leverage measure for the sector.

Telecoms are regulated. In Germany the Bundesnetzagentur (Federal Network Agency) regulates network access and allocates spectrum. Market structure matters too: markets with three or four mobile operators tend to have different price competition, which is why mergers between operators are closely reviewed by competition authorities. Many operators have sold their mobile towers to specialised tower companies to reduce debt, and then pay rent to use them.

Worked example

Hypothetical example A, property company: market capitalisation €1,200m, net debt €1,800m, NOI €150m per year, appraisal yield 4.2%. Transaction costs, taxes and deferred tax adjustments to NAV are excluded.

  1. EV = €1,200m + €1,800m = €3,000m.
  2. Implied yield = €150m ÷ €3,000m = 5.0%, versus 4.2% in the valuation.
  3. Appraised property value = €150m ÷ 0.042 = €3,571m.
  4. NAV = €3,571m − €1,800m = €1,771m.
  5. Discount to NAV = €1,200m ÷ €1,771m − 1 = −32%.
  6. LTV = €1,800m ÷ €3,571m = 50%.

The market is saying it does not fully trust the valuations, or it fears that higher interest costs and a 50% LTV will hurt. A discount is a question to investigate, not automatically a bargain.

Hypothetical example B, telecom operator: 10 million customers, ARPU €20 per month, EBITDA margin 38%, capex intensity 18%, net debt €2,600m.

  1. Annual revenue = 10m × €20 × 12 = €2,400m.
  2. EBITDA = €2,400m × 0.38 = €912m; capex = €2,400m × 0.18 = €432m.
  3. EBITDA − capex = €480m.
  4. Net debt / EBITDA = €2,600m ÷ €912m = 2.85x.

Common mistake

Calling a high dividend yield "safe" in a rate-sensitive sectorProperty and telecom dividends depend on cash left after interest and capex. When cheap debt is refinanced at higher rates, that cash can shrink quickly and dividends can be cut.

Practice activity

Hypothetical property company: funds from operations (FFO, roughly rental profit after interest, before depreciation and valuation changes) is €60m per year. €1,000m of debt at 1.5% interest matures and is refinanced at 4.0%. On paper, calculate the change in annual interest cost and the new FFO, and the percentage change in FFO. Assume nothing else changes.

Show solution

Old interest: €1,000m × 1.5% = €15m. New interest: €1,000m × 4.0% = €40m. Increase: €25m.

New FFO: €60m − €25m = €35m. Change: (35 − 60) ÷ 60 = −41.7%.

A 2.5-percentage-point rise in rates on one block of debt removes over 40% of FFO, which could force a dividend cut or asset sales.

Limitations: real companies may have interest-rate hedges, rising rents or partial repayments that change the result; taxes are ignored.

Key takeaways

  • Real estate is its own GICS sector; telecoms sit inside communication services together with media and internet firms.
  • Compare implied yield with appraisal yield, and price with NAV, to see what the market believes.
  • For telecoms, track ARPU, churn, capex intensity, EBITDA minus capex and net debt / EBITDA.
  • Both sectors are debt-financed and sensitive to refinancing costs.

Next step

In the next lesson you will use Porter's five forces and value chains to judge how attractive any industry is.

Self-check

Answer the questions, then check your answers. You can retry as often as you like.

1. A property company has a market capitalisation of €800m, net debt of €1,200m and NOI of €110m. What is its implied yield?

2. Why is a GICS communication services index not the same as a telecom index?

3. A telecom operator has revenue of €5,000m, an EBITDA margin of 35% and capex intensity of 20%. What is EBITDA minus capex?

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