Earnings per ShareEPS
Earnings per share is a company's profit available to ordinary shareholders divided by its number of shares outstanding.
Earnings per share turns a company’s total profit into a figure for each share you own. It is the headline number in every earnings report, the basis of the price-to-earnings ratio, and the figure analysts forecast quarter after quarter. This entry explains how EPS is calculated, the difference between basic, diluted and adjusted versions, and why the change in EPS often matters more than its level.
- Category
- Fundamentals and Macroeconomics
- Reading time
- 4 min
- Also called
- Adjusted EPS, Trailing EPS, Forward EPS
- Updated
EPS in plain words
EPS is a public company’s net profit divided by the number of its common shares.1 A company earning $500 million with 250 million shares has EPS of $2.
Price-to-earnings ratios are built on it: the share price divided by EPS, usually using the last 12 months of earnings.2 See Price-to-Earnings Ratio.
How to read EPS, step by step
Find net profit for shareholders
Profit after tax, minus any preferred dividends. See Net Income.
Divide by shares
Use the weighted average number of shares in the period.
Check basic vs. diluted
Diluted EPS includes shares that options and convertibles could add.
Check adjusted figures
Companies often report an adjusted EPS that excludes some items; compare like with like.
Compare with forecasts
The market reacts to EPS versus expectations. See Earnings Surprise.
Look at the trend
Growth in EPS over years matters more than one quarter. See Earnings.
Worked examples
Example 1 — Basic EPS
CalculationNet profit $84 million, preferred dividends $4 million, average shares 40 million.
| Profit for ordinary shareholders | $80 million |
| Basic EPS | $80m ÷ 40m = $2.00 |
EPS spreads profit across every ordinary share.
Example 2 — Dilution
DilutionThe same company has options that could add 5 million shares.
| Diluted EPS | $80m ÷ 45m ≈ $1.78 |
Diluted EPS shows what each share would earn if all those claims became shares.
Example 3 — Buybacks lift EPS
BuybacksProfit stays at $80 million, but buybacks cut shares from 40 million to 36 million.
| EPS before | $2.00 |
| EPS after | ≈ $2.22 |
EPS can rise without profit growth. Check whether growth comes from the business or from fewer shares.
Versions of EPS
| Aspect | What it uses | Watch out for |
|---|---|---|
| Basic | Shares actually outstanding | Ignores potential dilution |
| Diluted | Adds options, convertibles, etc. | Usually the more conservative figure |
| Adjusted | Excludes items the company calls one-off | Definitions vary between companies |
| Forward | Analysts’ estimates for the next 12 months | Forecasts can be wrong |
How EPS is used
Valuation
The denominator of the P/E ratio.
Earnings reactions
Beats and misses versus forecasts move prices. See Earnings.
Growth tracking
Long-term EPS growth often drives long-term share prices.
Comparison
Comparing profitability per share across years. See Fundamental Analysis.
Advantages and disadvantages
Advantages
- Simple, widely reported and comparable over time.
- Directly links profit to what one share owns.
- Basis of the most common valuation ratio.
Disadvantages
- Can be lifted by buybacks without real growth.
- Adjusted versions differ between companies.
- Ignores cash flow and debt.
- Not comparable across companies with very different share counts and prices.
Going deeper
Read as far as you need. Each level builds on the one before it.
EPS vs. share price
Beginner
A high EPS does not make a share expensive or cheap on its own. Compare it with the price using the P/E ratio.
Quality of earnings
Intermediate
EPS backed by strong cash flow is more reliable than EPS boosted by accounting items. See Free Cash Flow.
Per-share growth vs. total growth
Advanced
Acquisitions paid for with new shares can raise total profit but dilute EPS. Investors care about growth per share, not just in total.
Common mistakes
Mixing adjusted and reported EPS
Compare the same version.
Ignoring dilution
Check diluted EPS.
Treating buyback-driven EPS as growth
Look at total profit too.
Judging one quarter
Look at multi-year trends.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- EPS = profit for ordinary shareholders ÷ shares.
- Diluted EPS includes potential new shares.
- Adjusted EPS definitions vary — compare like with like.
- Buybacks can raise EPS without profit growth.
- EPS feeds the price-to-earnings ratio.
Frequently asked questions
What is a good EPS?
Why does a stock fall after an EPS beat?
Should I use basic or diluted EPS?
Further learning
- Price-to-Earnings Ratio
How EPS becomes a valuation.
- Earnings
The reports where EPS is published.
- Market Capitalisation
The company-level view of value.
- Fundamental Analysis
Where EPS fits in analysis.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- Investor.gov (SEC). Earnings Per Share (glossary) (opens in a new tab) Checked .
- Investor.gov (SEC). Price-Earnings (P/E) Ratio (glossary) (opens in a new tab) Checked .
Read more elsewhere
- Investopedia: Earnings Per Share (EPS) (opens in a new tab)
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.