EV/EBITDA vs. P/E: Why P/E Alone Misleads You About a Company by Half

You're sitting at your computer, with Company A in one tab boasting an attractive P/E of around 12, and next to it, Company B with a P/E of 22. Your finger automatically twitches towards the cheaper one — cheaper is better, right? Then you look under the hood and discover that Company A is teetering on the edge due to massive debt, while Company B is sitting on a pile of cash and its business is printing money like a mint. They looked like twins — and P/E didn't tell you a word about the difference.

And this is exactly where the story of the indicator that looks under the hood begins: EV/EBITDA.

First a Quick Scene: Two Companies, Same P/E, Different World

Imagine two fictional manufacturing companies, both with a market capitalization of 1,000 million CZK and a net profit of 83 million CZK. Both have a P/E = 1000 / 83 ≈ 12. At first glance, it's a tie.

• Company A has 300 million CZK in cash and no debt.
• Company B has 700 million CZK in debt and only 50 million CZK in cash.

If you were buying the whole company, you're not just buying the shares — you're taking on the debt too. And here's where the rubber meets the road. Enterprise Value (EV) tells you what you would actually pay for the entire business:

EV = market capitalization + net debt (debt − cash)

• Company A: 1000 + (0 − 300) = 700 million CZK
• Company B: 1000 + (700 − 50) = 1650 million CZK

For the same profit, you're actually paying more than double for Company B than for Company A. P/E elegantly concealed this difference because it only looks at the value of the shares — debt doesn't concern it.

Analogy? You're buying a house for 5 million CZK (capitalization), but it has a 3 million CZK mortgage (debt) and there's an envelope with 1 million CZK in cash on the kitchen table. The house effectively costs you 7 million CZK — and that's exactly what EV is. The price tag on the facade only tells half the truth.

What is EBITDA and Why It Matters

EBITDA is earnings before interest, taxes, depreciation, and amortization. Analogy: it's the engine's performance before you deduct financing costs (interest), tax regime, and accounting depreciation of machinery (depreciation). It shows the operational strength of the business "all else being equal."

Why does this make sense? Because depreciation and interest are two things that can wreak havoc on net profit — and yet they speak more about accounting and financing structure than about whether the company can sell.

Where P/E Misleads: Depreciation

Imagine a capital-intensive company — telecom, manufacturer, transporter. It builds infrastructure for 5,000 million CZK and depreciates it over 10 years, i.e., 500 million CZK annually. Those 500 million CZK reduce net profit (and thus increase P/E), even though not a single crown of cash flowed out of the company that year — the money left earlier during construction.

Two companies with the same operational performance but different depreciation policies or asset ages can have dramatically different P/Es, without it meaning that one is "better." EV/EBITDA removes this accounting noise — depreciation doesn't enter EBITDA at all.

Where P/E Misleads: Debt and Interest

The second trap. Take Company B from the introduction with 700 million CZK in debt. When the interest rate rises from 4% to 7%, annual interest jumps from 28 million to 49 million CZK. That's an extra 21 million CZK that bites into net profit. Profit falls, P/E shoots up — and the company is selling just as it did before.

EV/EBITDA isn't fooled by this because EBITDA is above the level of interest and EV already includes debt in the numerator. That's why EV/EBITDA is popular wherever companies with different levels of debt are compared — which is most of the real world. It's no coincidence that analysts and private equity funds, which buy entire companies along with their debt, reach for this indicator.

Data Block: What It Looks Like in Numbers

Indicative, order-of-magnitude values (vary over time and by sector):

• Long-term EV/EBITDA range in developed stock markets is around 8–12×; individual sectors differ by tens of percent.
• Capital-intensive industries (utilities, telecoms, mining) typically have lower EV/EBITDA and yet higher debt — that's why P/E can easily run away there.
• Software and light businesses with minimal tangible assets tend to have high EV/EBITDA and P/E because there is little depreciation and the difference between the two indicators is smaller.

Practical signal: when you come across a company with a suspiciously low P/E (say below 8×), but its EV/EBITDA is instead well above the sector average, it's almost always an unmistakable trail leading to one place — a balance sheet full of debt. The more debt and depreciation, the greater the difference between what P/E says and what EV/EBITDA says. For a company without debt and with small depreciation, both indicators almost match.

When EV/EBITDA Misleads Instead

To make it not so simple — EV/EBITDA also has its blind spots and it's fair to know them:

• Ignores real capital expenditures. EBITDA deducts depreciation, but the company must actually renew machinery. For a very capital-intensive company, EBITDA may look great, while almost all cash goes back into investments. That's why EV/EBIT or free cash flow is also monitored.
• Doesn't look at taxes. Two companies with the same EBITDA, but in different tax regimes, will earn differently for their owners.
• Can be "inflated." EBITDA is sometimes presented in an "adjusted" version where all sorts of things are deducted. Always look at what exactly is included.

Therefore, no single multiple is a holy grail. EV/EBITDA and P/E don't compete — they complement each other.

Practical Framework: Checklist for Comparing Two Companies

Before you next compare two companies just by P/E, go through this:

1. Calculate net debt (debt − cash). Is it similar for both companies? If not, P/E alone will deceive you — switch to EV/EBITDA.
2. Look at the level of depreciation relative to profit. Large depreciation = P/E overstates the "expensiveness" of the company. EV/EBITDA gives a cleaner picture.
3. Check the Net Debt / EBITDA ratio. When this number is high (order of magnitude above 3), the company is living on a debt drug — and lures you with low P/E as a trap.
4. Compare only within the same sector. EV/EBITDA 6× for telecom and 6× for software doesn't mean the same thing. Don't compare apples (software) with pears (steel mills).
5. Add a cash flow control indicator. Ask: how much of EBITDA is left after investments? High EBITDA and zero free cash flow is a warning signal.

Exercise for today: take two companies from your watchlist, find their capitalization, debt, cash, and EBITDA, and calculate EV/EBITDA for both. You'll see if P/E has only been showing you half the story.

In QMA: this calculation is done for you by the screener — for each company, you see P/E alongside EV/EBITDA, net debt, and comparison with the sector average, so you can immediately see through "twins with the same P/E." You can filter and sort your entire watchlist by EV/EBITDA without having to manually pull numbers from reports.

What to Take Away

• Never compare two differently leveraged companies just by P/E. Two companies with the same P/E can cost diametrically different once you account for debt — like Company A and B, where the real price for the business was 700 vs. 1650 million CZK.
• For capital-intensive and leveraged companies, reach for EV/EBITDA, because it bypasses the pitfalls of depreciation and interest that wreak havoc in net profit.
• Watch the Net Debt / EBITDA ratio. It's a quick safeguard against buying an over-leveraged skeleton just because of an attractive P/E.
• Make your own mini-table of two companies and calculate EV/EBITDA today: open in QMA.