What Is the Price-Earnings Ratio?
The price-earnings ratio (P/E ratio) is a valuation multiple that compares a company’s equity value (market capitalisation for a listed company, or the offer price for a private transaction) to its net profit after tax. It answers the question: how many years’ worth of current earnings is a buyer paying for this company?
Formula:
P/E Ratio = Market Capitalisation ÷ Net Profit After Tax
Or equivalently: Share Price ÷ Earnings Per Share (EPS)
A P/E ratio of 15x means a buyer is paying $15 for every $1 of annual after-tax earnings. A higher P/E reflects either higher expected growth or a quality premium; a lower P/E reflects slower expected growth, higher risk, or undervaluation.
P/E Ratio vs. EBITDA Multiple in M&A
In private M&A — particularly the mid-market transactions that characterise the Asia Pacific advisory landscape — EBITDA multiples are far more commonly used than P/E ratios. This is because:
| Factor | EBITDA Multiple | P/E Ratio |
|---|---|---|
| Capital structure neutral | Yes — EBITDA is pre-interest | No — EPS is post-interest, varies with debt levels |
| Tax normalisation | Yes — EBITDA is pre-tax | No — dependent on tax structure and jurisdiction |
| Depreciation normalisation | Yes — EBITDA excludes D&A | No — D&A policy affects net profit |
| Comparability across jurisdictions | High | Lower — different tax rates distort comparison |
| Standard in private M&A | Yes | Primarily for listed company analysis |
Because private companies have varied capital structures, discretionary expenses, and owner compensation levels, EBITDA — which strips out interest, tax, and depreciation — provides a more consistent and comparable earnings base for mid-market M&A.
When P/E Ratios Are Used in M&A
Despite EBITDA multiples being the standard, P/E ratios are used in specific M&A contexts:
1. Public-to-Private Transactions
When a PE firm or strategic buyer acquires a publicly listed company, the bid premium is often expressed as a multiple of the listed company’s earnings per share. Analysts and shareholders assess the offered price relative to the historical and forward P/E.
2. Financial Services M&A
Financial services businesses — banks, insurance companies, and listed investment vehicles — are commonly valued on P/E and P/Book (price-to-book) multiples rather than EBITDA, because their earnings quality is directly comparable and interest income is a core operating revenue item (not a financing cost).
3. Minority Stake Acquisitions
In listed minority stake transactions or pre-IPO investments, P/E is used as a cross-reference metric to test whether a proposed acquisition price represents a premium or discount to comparable listed entities.
4. Comparable Company Analysis (CCA)
When building a comparable company analysis, analysts typically include both EBITDA and P/E multiples from the selected comparable companies. The P/E comparison provides a secondary data point and sanity check.
P/E Multiples by Sector: Asia Pacific Context
The following P/E ranges are indicative of the listed equity market in Asia Pacific. Private mid-market transactions typically apply a discount to listed multiples (the “private company discount” or “liquidity discount”) of 20–30%.
| Sector | Typical Listed P/E Range | Key Drivers |
|---|---|---|
| Technology / Software (growth) | 25–60x | Earnings growth rate, recurring revenue, TAM |
| Healthcare Services | 20–35x | Predictable demand, regulatory barriers |
| Consumer Staples | 18–28x | Brand, distribution, recurring purchase |
| Financial Services (banks) | 10–18x | NIM, asset quality, ROE |
| Industrials / Manufacturing | 12–20x | Cyclicality, asset intensity |
| Energy (traditional) | 8–14x | Commodity price exposure |
| Real Estate | 12–22x | Asset quality, development pipeline |
Note: Private company P/E multiples are not commonly quoted in mid-market transaction databases because EBITDA is the standard metric. Where P/E is referenced in private deals, it is typically used as a cross-check rather than a primary pricing mechanism.
Forward P/E vs. Trailing P/E
Like EBITDA multiples, P/E ratios can be calculated on either a trailing or forward basis:
- Trailing P/E (TTM P/E) — uses the last twelve months of actual net profit. This is the most commonly cited figure because it is based on confirmed results.
- Forward P/E (NTM P/E) — uses projected net profit for the next twelve months. Forward P/E reflects buyer expectations and typically results in a lower multiple when earnings are expected to grow.
In M&A, LTM (last twelve months) EBITDA is the standard historical earnings base. Forward earnings are presented in the vendor financial model as part of the information memorandum and are assessed — with appropriate scepticism — by buyer analysts.
P/E Ratio as a Seller’s Reference Point
Business owners selling their company often encounter P/E multiples when reading press coverage of comparable listed companies or large listed M&A transactions. It is important to understand two things:
-
P/E multiples are after-tax and after-interest — they are structurally lower than EBITDA multiples for the same company. A 15x P/E on a business with 50% EBITDA-to-net profit conversion implies approximately 7.5x EBITDA.
-
Listed company P/E multiples include a liquidity premium — public companies are traded daily; private companies are not. Buyers of private companies apply a liquidity discount of 20–30% to comparable listed multiples.
For most private mid-market business owners, the most actionable valuation benchmark is a comparable company analysis using EBITDA multiples from private transaction databases — not public market P/E ratios.
Lyndon Advisory provides business owners with a market-calibrated valuation analysis using EBITDA multiples from comparable private transactions as part of every advisory engagement. Submit a valuation inquiry to understand what your business is worth.