What is earnings per share (EPS)?
Earnings per share, or EPS, is a profitability measure calculated by dividing a company’s net profit by its number of outstanding shares.
It shows how much profit is attributed to each share, giving investors a simple way to compare profitability across companies of different sizes.
In simple terms, EPS shows how much profit a company makes for each share.
How EPS is calculated
EPS is found by taking a company’s net profit, sometimes after subtracting preferred dividends, and dividing it by the number of shares in issue. A higher EPS generally means more profit is being generated per share, which many investors view positively. Companies often report both a basic EPS and a diluted EPS, the latter accounting for shares that could be created from options or convertible securities.
Basic compared with diluted EPS
| Feature |
Basic EPS |
Diluted EPS |
| Share count |
Current shares |
Includes potential shares |
| Usually |
Higher |
Lower or equal |
| Reflects |
Today’s position |
Possible dilution |
Why EPS matters
EPS is a building block for other measures, most notably the price-to-earnings ratio, which compares the share price with EPS. Investors track EPS over time to see whether profitability is growing, and they compare a company’s actual EPS against forecasts, since beating or missing expectations can move the share price. It offers a standardised way to look at profitability regardless of company size.
Basic versus diluted EPS
EPS often comes in two forms. Basic EPS divides profit by the current number of shares. Diluted EPS also counts shares that could be created from options, convertible bonds or similar instruments, giving a more conservative figure. The gap between the two shows how much potential dilution exists. Investors tend to focus on diluted EPS for a fuller picture, and they watch how EPS changes over time and compares with expectations rather than viewing a single number in isolation. It is also worth checking whether one-off items have flattered or depressed the figure in a given period, since these can distort a single quarter.
Reading EPS with care
EPS can be affected by one-off items, accounting choices and changes in the share count, so it should not be viewed in isolation. A company could raise EPS by buying back shares rather than growing profit, for example. Traders usually consider EPS alongside revenue, cash flow and the wider business rather than treating a single figure as the whole story.
Working through EPS
Say a company earns $10 million in profit and has 5 million shares outstanding. Dividing one by the other gives earnings per share of $2. This figure lets investors compare profitability on a per-share basis, though it is most useful when read alongside the share price and the company’s debt.
Reading EPS alongside other metrics
Earnings per share is one of the most widely quoted measures of company profitability and underpins several other key ratios. Understanding how it is calculated and what can distort it helps traders assess shares more accurately, while keeping in mind that no single figure captures a company’s full picture or removes investment risk.
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