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Diluted EPS shows what earnings per share would look like if every option, warrant, and convertible security that COULD become common stock actually did — a more conservative, complete picture than basic EPS alone.
How it works
Enter net income, preferred dividends, weighted average common shares, and the number of additional shares that would exist if all dilutive securities were converted. The calculator applies Diluted EPS = (Net Income − Preferred Dividends) ÷ (Weighted Average Shares + Dilutive Securities), and shows basic EPS alongside it for comparison.
- Enter net income ($).
- Enter preferred dividends ($).
- Enter weighted average common shares outstanding.
- Enter dilutive securities (as-if-converted shares: options, warrants, convertibles).
- Click Calculate to see your results.
Examples
Seeing the dilution effect
With $1,000,000 of net income, $100,000 of preferred dividends, 900,000 weighted average shares, and 100,000 additional dilutive shares, diluted EPS comes to $0.90 — lower than the $1.00 basic EPS for the same company.
Who should use it
- Analyzing a public company's full EPS picture, including potential dilution.
- Investment analysis and equity research.
Industry applications
- Investment analysis and equity research
- Corporate finance and investor relations
Advantages
- Shows both diluted and basic EPS together for direct comparison.
- More conservative, complete picture of per-share earnings than basic EPS alone.
Limitations
- Requires knowing the as-if-converted dilutive share count, which itself requires a separate calculation (often the treasury stock method) not covered by this tool.
Common mistakes to avoid
- Using the total number of outstanding options/warrants directly instead of their as-if-converted share equivalent (which typically requires the treasury stock method calculation first).
- Confusing diluted EPS with basic EPS when only one is actually reported or expected.
Best practices
- Use a company's actual reported dilutive-securities share count from its financial statement footnotes rather than estimating it yourself.
- Compare basic and diluted EPS together — a large gap between them signals significant potential dilution investors should be aware of.
Tips
- If a company has no stock options, warrants, or convertible securities outstanding, diluted and basic EPS will be identical — enter 0 for dilutive securities in that case.