Quick answer
Earnings per share (EPS) is a public company's net profit divided by the number of its common shares [1]. It shows how much profit the company earned for each share over a period.
#How is EPS calculated?
Start with net income, the bottom line of the income statement after all expenses, which the SEC notes is also called net profit or net earnings [2]. Divide it by the number of shares outstanding. The SEC's beginner guide explains that EPS tells you how much money shareholders would receive for each share if the company distributed all of its net income for the period [2] — something companies rarely do in practice.
Worked example
From total profit to profit per share
A company reports net income of $750 million for the year and has 300 million common shares outstanding. Its shares trade at $45.
- EPS ($750,000,000 ÷ 300,000,000)
- $2.50
- P/E ratio ($45 ÷ $2.50)
- 18
- Same profit, 280 million shares after a buyback ($750,000,000 ÷ 280,000,000)
- $2.68
- A net loss of $120 million instead (−$120,000,000 ÷ 300,000,000)
- −$0.40
EPS can rise because profit grew or because the share count fell. It can also be negative when the company loses money.
Hypothetical company for illustration.
#Why does EPS matter to investors?
EPS is the "E" in the price-to-earnings ratio. Investor.gov explains that the P/E ratio divides the current share price by earnings per share, with EPS based on the past 12 months of earnings [3]. Read more in the P/E ratio guide.
| Change | Effect on EPS |
|---|---|
| Net income rises, share count unchanged | EPS rises |
| Company buys back shares, net income unchanged | EPS rises |
| Company issues new shares, net income unchanged | EPS falls |
| Company reports a loss | EPS is negative |
#What are the limits of EPS?
- It is a past number. Reported EPS describes a period that has already ended.
- Share counts change. Buybacks can lift EPS without any growth in profit; see stock splits and buybacks.
- Accounting choices matter. One-off gains or charges can swing net income. The full picture is in the company's filings — see how to read financial statements.
Related terms
Frequently asked questions
Is a higher EPS always better?
Not on its own. EPS depends on how many shares a company has, so comparing EPS between two companies says little. Compare a company's EPS with its own past, or use ratios like P/E.
Can EPS be negative?
Yes. If the company has a net loss for the period, EPS is negative, and the P/E ratio is usually not meaningful.
Where do I find a company's EPS?
Look at the income statement in the company's annual Form 10-K or quarterly Form 10-Q. The SEC makes these filings available free on its EDGAR website [5].
Sources
Grade A = primary source (regulator, government agency, official rulebook or the index provider's own documents). Numbers in brackets in the text point here.
- U.S. SEC — Investor.gov. Earnings Per Share (glossary) (2026). Accessed 2026-10-03.A
- U.S. Securities and Exchange Commission. Beginners' Guide to Financial Statements (2026). Accessed 2026-10-03.A
- U.S. SEC — Investor.gov. Price-earnings (P/E) Ratio (glossary) (2026). Accessed 2026-10-03.A
- FINRA. Financial Performance Metrics Every Investor Should Know (2024). Accessed 2026-10-03.A
- U.S. SEC — Investor.gov. Public Companies (2026). Accessed 2026-10-03.A
This page is general education, not personal financial, tax or legal advice. Figures in worked examples are hypothetical and calculated before taxes and fees unless stated. Rules and limits change; check the linked primary sources for the current version. How we check every page.
