Earnings per share

In simple terms

Earnings per share (EPS) is a company's profit divided by the number of its shares. It tells you how much profit each share earned during the period. Because a shareholder owns shares, not the whole company, EPS links the company's results to what one share is entitled to, and it is the "E" in the price-to-earnings ratio covered in the fundamental analysis path.

Basic EPS

Two details matter. The profit is the part that belongs to the company's own shareholders, after removing any non-controlling interest and any preference dividends. And the share count is a weighted average, because shares issued or bought back during the year were outstanding for only part of it.

Diluted EPS

Companies often have securities that could become shares later: employee stock options, warrants and convertible bonds or debentures. If they were converted, profit would be shared among more shares. Diluted EPS shows what EPS would be if they were, so it is usually lower than basic EPS.

In the simplest case, if Sabarmati also had employee options that could create 0.5 crore more shares, diluted EPS would be about 150 ÷ 11.5 = ₹13.04. The actual calculation adjusts for the money employees would pay to exercise their options, so real diluted figures are usually a little closer to basic EPS. A large gap between basic and diluted EPS is a sign that existing shareholders may be diluted in future.

Changes in the share count

EPS can change even when the business does not.

New share issues work the other way. If profit rises 10% but the average share count rises 15%, EPS falls by about 4%, even though the company earned more. For companies that issue shares often, through acquisitions, fund-raising or generous employee options, growth per share is the number that matters to an existing shareholder.

Splits and bonus issues

A 1:1 bonus issue doubles the number of shares and halves EPS, without any change in profit. To keep years comparable, companies restate earlier EPS figures as if the bonus or split had always applied. When you compare EPS across years, check that the figures have been adjusted, especially on data websites.

Why it matters

Shareholders own shares, so per-share numbers are what count for them. EPS growth, rather than profit growth, shows whether each share is becoming more valuable. EPS also underpins the most widely quoted valuation measure, the P/E ratio, so errors in EPS, such as using an unadjusted figure after a bonus issue, lead straight to wrong conclusions about valuation.

Limitations

• EPS inherits every weakness of net profit: one-off items, accounting choices and tax changes all flow through to it.
• EPS can be raised by buybacks funded with debt, which adds risk while making the numbers look better.
• EPS says nothing about cash, or about how much capital was used to earn the profit.
• Comparing EPS between companies is meaningless on its own, because share counts are arbitrary. A ₹100 EPS is not "better" than a ₹10 EPS.

Common mistakes

• Using the year-end share count instead of the weighted average.
• Ignoring dilution from options and convertibles.
• Comparing unadjusted EPS across a split or bonus.
• Treating EPS growth from buybacks as business growth.
• Comparing EPS levels across different companies.

Try it yourself

1. In a listed company's statement of profit and loss, find basic and diluted EPS for the last two years. How big is the gap between them?
2. Find the weighted average number of shares used, usually in the notes, and check the EPS calculation.
3. Compare the growth in net profit with the growth in EPS. Did the share count change?