What is earnings per share (EPS)?

Published Thursday 23 July 2026

Table of contents

• What is earnings per share (EPS)?
• How to calculate earnings per share
• Types of EPS: trailing, current, and forward
• EPS and the price-to-earnings (P/E) ratio
• How EPS is used
• What is a good EPS?
• How stock buybacks and issuances affect EPS
• Limitations of EPS
• Track your business profitability with Xero
• FAQs on earnings per share

Key takeaways

• Earnings per share (EPS) is a financial metric that shows how much profit a company earns for each outstanding share of its common stock, making it one of the most widely used indicators of profitability.
• You can calculate basic EPS by dividing net profit (minus preferred dividends) by the average number of ordinary shares outstanding; diluted EPS also accounts for convertible instruments like stock options.
• EPS is most useful when compared across time periods, against competitors in the same industry, or alongside other metrics like the price-to-earnings (P/E) ratio.
• EPS has limitations: it doesn't reflect a company's capital structure, can be influenced by share buybacks, and may be distorted by one-off items or accounting choices.

What is earnings per share (EPS)?

Earnings per share (EPS) is a financial metric that measures a company's profit for each outstanding share of its common stock. It's one of the most widely referenced indicators of a company's financial performance.

Investors and analysts use EPS to gauge how effectively a company turns revenue into profit on a per-share basis. A higher EPS generally signals stronger profitability, which can make a company's shares more attractive to buyers.

If you're a small business owner who's considering investment opportunities or thinking about how public companies are valued, EPS gives you a straightforward way to compare profitability across different businesses. It's also a key figure in annual and quarterly earnings reports found within a company's financial statements, so understanding it helps you read financial news with more confidence.

How to calculate earnings per share

The formula for calculating EPS is simple. You take a company's net profit, subtract any dividends owed to preferred shareholders, and divide the result by the average number of ordinary shares outstanding.

Earnings per share = (Net profit – Preferred dividends) / Average number of ordinary shares outstanding

Here's what each part means:

• Net profit: the company's total revenue minus all expenses and taxes
• Preferred dividends: payments owed to a special class of shareholder who receives dividends before ordinary shareholders
• Average ordinary shares outstanding: the typical number of common shares in circulation during the reporting period, accounting for any shares issued or bought back

By subtracting preferred dividends, the formula isolates the profit available to ordinary shareholders. Using the average share count smooths out fluctuations caused by share issuances or buybacks during the year.

Example EPS calculation

A company reports net profit of £2,000,000 for the year. It owes £200,000 in preferred dividends. There are 800,000 ordinary shares outstanding on average.

(£2,000,000 – £200,000) / 800,000 = £1,800,000 / 800,000 = £2.25

The company earns £2.25 per share.

Variations of EPS

There are 2 main ways to calculate EPS, and each tells you something slightly different about a company's profitability.

• Basic EPS: this uses the formula above, dividing net profit (minus preferred dividends) by the average number of ordinary shares. It's a straightforward measure of profitability per share.
• Diluted EPS: this factors in convertible instruments that could be turned into ordinary shares, such as stock options, warrants, or convertible bonds. Diluted EPS gives you a more conservative figure because it shows what earnings per share would look like if all those potential shares were actually issued.

Diluted EPS is always equal to or lower than basic EPS. When there's a large gap between the 2, it means the company has a significant number of convertible instruments that could reduce the value of each existing share.

Types of EPS: trailing, current, and forward

EPS can be reported for different time periods, and each type serves a distinct purpose when you're evaluating a company's performance.

• Trailing EPS: based on the previous 12 months of actual earnings data. It's the most commonly cited figure because it uses real, audited numbers rather than projections.
• Current EPS: based on earnings for the current financial year, combining actual results from completed quarters with estimates for the remaining quarters. It gives a more up-to-date picture than trailing EPS alone.
• Forward EPS: based entirely on analyst forecasts for future earnings. Companies and analysts use forward EPS to set expectations and guide investment decisions, but it's inherently less reliable because it depends on predictions.

Trailing EPS is the most dependable for comparing historical performance. Forward EPS is more useful when you're trying to assess a company's growth potential. Comparing the 2 can show you whether analysts expect a company's profitability to improve, hold steady, or decline.

EPS and the price-to-earnings (P/E) ratio

EPS is a building block for one of the most common valuation metrics in investing: the price-to-earnings (P/E) ratio. The P/E ratio tells you how much investors are willing to pay for each pound of a company's earnings.

P/E ratio = Share price / Earnings per share

For example, if a company's share price is £45 and its EPS is £2.25, the P/E ratio is 20. That means investors are paying £20 for every £1 of earnings.

A higher P/E ratio can suggest that investors expect strong future growth, while a lower P/E might indicate the market sees limited growth potential or higher risk. However, P/E ratios vary widely by industry, so it's most useful when comparing companies in the same sector.

For small business owners evaluating potential investments or trying to understand how public companies are valued, the P/E ratio puts EPS into a broader context. A company might have a strong EPS, but if its share price is very high relative to those earnings, it could be overvalued.

How EPS is used

EPS is a versatile metric that serves several purposes in financial analysis. Here are the most common ways it's used.

• Comparative analysis: investors use EPS to compare profitability between companies in the same industry. Because EPS is expressed on a per-share basis, it levels the playing field between large and small companies.
• Tracking performance over time: a company's EPS trend across quarters or years shows whether profitability is growing, stable, or declining. Consistent EPS growth is often a positive signal for investors.
• Earnings reports: publicly listed companies report EPS in their quarterly and annual results. Analysts set EPS expectations in advance, and whether a company beats or misses those expectations can significantly affect its share price.
• Dividend analysis: EPS helps you assess whether a company can sustain its dividend payments. If EPS is lower than the dividend yield per share, the company may be paying out more than it earns, which isn't sustainable long term.

Understanding how EPS is used helps you read financial reports more critically and make more informed decisions about where to invest.

What is a good EPS?

There's no single number that counts as a "good" EPS. What's considered strong depends on the industry, the company's size, and its growth stage.

A technology startup reinvesting heavily in growth might have a low or even negative EPS, while an established utility company might show a high, stable EPS. Neither figure alone tells the full story.

The most useful approach is to compare a company's EPS against its own historical performance, its direct competitors, and the average for its industry. Consistent growth in EPS over several years is generally a more meaningful indicator than any single quarter's figure.

It's also worth looking at EPS alongside other metrics like revenue growth, profit margins, and return on equity. A high EPS means little if the company is taking on excessive debt or relying on one-off gains to boost its numbers.

How stock buybacks and issuances affect EPS

Because EPS divides profit by the number of shares outstanding, changes to the share count directly affect the result, even if the company's actual profit stays the same.

Share buybacks reduce the number of shares in circulation. With fewer shares in the denominator, EPS goes up. Some companies use buybacks specifically to improve their EPS figures, which can make profitability look stronger than it actually is.

New share issuances have the opposite effect. When a company issues new shares to raise capital or as part of employee compensation, the total share count increases. This dilutes EPS because the same profit is now spread across more shares.

This is why it's important to look at the reasons behind EPS changes. A rising EPS driven by genuine profit growth is very different from one driven by aggressive buybacks funded with borrowed money. Checking whether the change came from the numerator (profit) or the denominator (shares) helps you understand the real picture.

Limitations of EPS

While EPS is a useful starting point for evaluating profitability, it has several limitations you should be aware of.

• Capital structure blindness: EPS doesn't account for how a company finances itself. A business might show a high EPS but carry significant debt, which increases risk for shareholders.
• Accounting manipulation: companies can influence EPS through accounting choices, such as changing depreciation methods or recognising revenue earlier. These adjustments are legal but can make EPS less reflective of true performance.
• Non-recurring items: one-off gains (like selling a property) or one-off losses (like restructuring costs) can distort EPS in a given period. Adjusted EPS strips out these items for a clearer picture, but it's not always reported.
• No context on asset efficiency: EPS tells you how much profit each share earns, but not how efficiently the company uses its assets or capital to generate that profit.

For a more complete view of a company's financial health, use EPS alongside other metrics such as return on equity, debt-to-equity ratio, and free cash flow. Reviewing key profitability ratios can also add valuable context. Comparing EPS within the context of the company's industry performance also helps you measure profitability more accurately.

Track your business profitability with Xero

Understanding metrics like EPS gives you a sharper lens for evaluating investments and reading financial reports. But when it comes to your own business, keeping a clear view of profitability starts with accurate, up-to-date financial data.

Xero's cloud accounting software gives you real-time visibility into your business finances, with customisable reports that help you track profit, monitor cash flow, and make confident decisions. Get one month free.

FAQs on earnings per share

Here are some frequently asked questions about earnings per share.

What is a good earnings per share ratio?

There's no universal benchmark for a "good" EPS. It depends on the company's industry, growth stage, and how its EPS compares to competitors and its own historical performance.

What is the difference between basic EPS and diluted EPS?

Basic EPS divides net profit by the number of ordinary shares outstanding. Diluted EPS also factors in convertible instruments like stock options and warrants, giving a more conservative figure that reflects what EPS would be if all potential shares were issued.

Can EPS be negative?

Yes, EPS is negative when a company reports a net loss. A negative EPS means the company lost money for each outstanding share during the reporting period.

How does EPS affect share price?

EPS itself doesn't directly set share prices, but it strongly influences them. When a company's reported EPS beats analyst expectations, the share price often rises; when it falls short, the price typically drops.

How is adjusted EPS different from basic EPS?

Adjusted EPS removes one-off items like restructuring costs, asset sales, or other non-recurring gains and losses. It aims to show the company's underlying recurring profitability, which can be more useful for spotting long-term trends.