How much profit does each share earn? Enter net income, any preferred dividends, and the share count to get basic earnings per share — add a diluted share count to see diluted EPS too.
Answer first: earnings per share is a company’s profit divided by its shares, so it expresses the bottom line on a per-share basis you can actually compare across companies. The formula subtracts preferred dividends from net income (because that money is owed to preferred shareholders, not common ones) and then divides by the weighted-average common shares outstanding.
Basic EPS = (Net income − Preferred dividends) ÷ Weighted-average shares
Example: $5,000,000,000 net income, no preferred dividends, 2,000,000,000 shares = $2.50 EPS. With 2,100,000,000 diluted shares, diluted EPS falls to about $2.38.
Basic EPS uses only shares that currently exist. Diluted EPS assumes every stock option, warrant and convertible security that could become a share actually does — spreading the same profit over more shares, which always produces a smaller (more conservative) number. Analysts usually focus on diluted EPS because it shows the worst-case dilution for existing owners.
EPS is the “E” in the P/E ratio — the single most-watched valuation input. When a company reports quarterly results, the market compares actual EPS to the consensus estimate; beating or missing by even a few cents can move the stock sharply. That is why earnings season is the most volatile stretch of the trading calendar.
Because EPS is profit per share, a company can lift it without earning a single extra dollar simply by buying back stock and shrinking the share count. That is real value for remaining holders, but it is not the same as growing the business. Always read EPS growth next to revenue and net-income growth to see whether profits are actually rising.
Reality check: use the weighted-average share count over the period, not the year-end snapshot, and watch for one-time items (asset sales, write-downs) that distort a single quarter’s EPS. Educational tool only — verify figures in the company’s income statement on SEC EDGAR. Not financial advice.
Pair this with the P/E ratio calculator, the dividend payout ratio calculator and the market cap calculator.
Last updated 27 June 2026 · Written by Mustafa Bilgic. Educational only — not financial advice.
Subtract preferred dividends from net income, then divide by the weighted-average number of common shares outstanding. For example, $5 billion of net income over 2 billion shares is $2.50 EPS.
Basic EPS uses only existing shares. Diluted EPS assumes all stock options and convertible securities are exercised, spreading profit over more shares and producing a lower, more conservative figure.
Earnings per share measures profit available to common shareholders. Preferred dividends are paid first to preferred shareholders, so that amount is removed before dividing by common shares.
Not necessarily. A company can raise EPS by buying back shares rather than growing profit. Compare EPS growth to revenue and net-income growth to see whether the underlying business is actually improving.