EPS — Earnings Per Share — Stock Market Glossary
EPS — Earnings Per Share
Earnings Per Share (EPS) measures a company’s profitability on a per-share basis. It’s the foundation of many valuation metrics, including the P/E ratio.
Formula
EPS = Net Income ÷ Diluted Shares Outstanding
Example: A company earning $1 billion in net income with 500 million shares outstanding has an EPS of $2.00.
Basic vs. Diluted EPS
| Type | What It Includes |
|---|---|
| Basic EPS | Just actual common shares |
| Diluted EPS | Includes stock options, warrants, convertible bonds |
Diluted EPS is more conservative and more commonly used in analysis, because it accounts for all shares that could exist if all options were exercised.
Trailing vs. Forward EPS
- Trailing EPS: Actual earnings over the past 12 months (used in P/E ratio)
- Forward EPS: Analyst estimates for the next 12 months (used in Forward P/E)
Why EPS Matters
EPS directly measures how much profit is generated per share of ownership. Growing EPS typically drives stock price appreciation over the long run — it’s the fundamental driver of value.
- Positive and growing EPS = profitable, expanding company
- Negative EPS = company is losing money
- EPS declining = may signal problems even if still positive
EPS and Stock Buybacks
Companies that buy back their own shares reduce the shares outstanding, which increases EPS even if net income doesn’t change. This is one reason investors watch both net income growth and EPS growth.
How It’s Used on This Site
EPS appears in the Market Data card on individual ticker pages. It’s the denominator that makes P/E and Forward P/E meaningful.
Related Terms
- P/E Ratio — Uses trailing EPS
- Forward P/E — Uses estimated future EPS
- Market Capitalization — Total company value context
Data on this site is for educational purposes only and does not constitute financial advice.