Relative valuation with peer multiples

Relative valuation asks whether a stock is cheap or expensive compared with similar companies, rather than compared with an estimate of its own intrinsic value. It is fast, it uses prices the market is actually paying, and it needs no long forecast. Its main weakness is also its main feature: it measures a stock against other stocks, which may all be priced too high or too low.

How it works

The method has four steps.

1. Choose the peer group. Companies in the same industry with similar business models, size, growth and risk.
2. Choose the multiples. Ratios of price or enterprise value to a measure of earnings, cash flow, sales or book value.
3. Summarize the peers. Take the median (preferred, because it ignores extreme values) or the mean of each multiple.
4. Apply it to the company. Multiply the peer multiple by the company's own earnings, cash flow or other measure.

Implied price per share = Peer median P/E x Company EPS

Implied enterprise value = Peer median EV/EBIT x Company EBIT
Implied equity value     = Implied enterprise value - net debt

Each multiple has a natural use, which the table summarizes. The linked articles explain them in detail.

EV-based multiples neutralize differences in debt, which is why they are popular for comparing companies with different capital structures.

Example (illustrative numbers)

A company earns $5.00 per share. Five peers trade at P/E ratios of 14, 17, 18, 21 and 30. The median is 18 and the mean is 20. Applying the median gives an implied price of 18 x $5.00 = $90. If the stock trades at $75, it trades at a 17% discount to that implied value ($75 is $15 below $90).

Now look at what the discount may hide. The peer at 30 could be a fast grower and the peer at 14 a slow one. If the company grows more slowly than the median peer, a discount can be deserved. The multiple is only informative once you have compared growth, profitability and risk. The next article, on regression-based multiples, shows one way to do that systematically.

How to read it

Rules of thumb:

• A discount to peers is a starting question, not a conclusion. Ask whether lower growth, thinner margins, higher debt or weaker returns explain it.
• A premium is not automatically a warning. Companies with higher growth and higher returns on capital deserve higher multiples.
• Use several multiples. If a stock looks cheap on one multiple and expensive on the others, find out why before relying on any of them.
• Look at the spread inside the peer group. A very wide range of multiples means the median is a weak anchor.

Common mistakes and limits

• Weak peer groups. Two companies in the same broad sector can have very different economics. A broader sector median is a rough benchmark, while a hand-picked set of close competitors is more precise but takes judgment.
• Everyone may be mispriced. If the whole group trades at stretched multiples, a stock that looks cheap relative to peers is still expensive in absolute terms. Relative valuation cannot detect a bubble or a bargain across an entire industry. See intrinsic value vs market price.
• Mixing up time periods. Compare trailing multiples with trailing ones and forward with forward. See forward vs trailing P/E.
• One-off earnings. A multiple built on depressed or inflated earnings misleads, particularly for cyclical companies.
• Accounting differences. Companies treat leases, stock compensation and acquisition costs differently, which can distort comparisons.
• Negative or tiny denominators. A P/E of 400 on near-zero earnings carries no information.

Where to see it on StocksXray

StocksXray uses peer multiples as one of three models behind fair value: the sector median of EV/EBIT, P/E and P/FCF. The other two models are a fundamentals-adjusted multiple and a 10-year DCF, and the three are blended with equal weight. Every metric on the site is also ranked as a percentile within the company's own sector, so comparisons stay inside like-for-like groups. The methodology page has the details, and each stock page lists its peers.

Key takeaways

• Relative valuation prices a stock off the multiples of comparable companies, usually using the peer median.
• The method is only as good as the peer group, so check that growth, margins and risk are similar.
• A discount or premium is a prompt for questions, not a verdict.
• It cannot tell you whether an entire group of stocks is cheap or expensive.