What is Earnings Per Share (EPS)? Definition & Formula

What is Earnings Per Share?

Earnings per share (EPS) measures how much profit a company generates for each share of its stock. It’s one of the most important metrics for evaluating a company’s profitability and is used to calculate the P/E ratio.

EPS Formula

$$\text{Basic EPS} = \frac{\text{Net Income} - \text{Preferred Dividends}}{\text{Weighted Average Shares Outstanding}}$$

Example Calculation

If a company has:

• Net income: $1 billion
• Preferred dividends: $0
• Shares outstanding: 500 million

EPS = $1,000,000,000 ÷ 500,000,000 = $2.00 per share

Basic vs. Diluted EPS

Basic EPS

• Uses current shares outstanding
• Simpler calculation
• Doesn’t account for potential dilution

Diluted EPS

• Includes all potential shares (stock options, convertible bonds, etc.)
• More conservative measure
• Always equal to or lower than basic EPS

$$\text{Diluted EPS} = \frac{\text{Net Income}}{\text{Diluted Shares Outstanding}}$$

Why EPS Matters

1. Profitability Measure

EPS shows how profitable a company is on a per-share basis, making it easy to compare companies of different sizes.

2. Valuation Tool

EPS is the denominator in the P/E ratio: $$\text{P/E Ratio} = \frac{\text{Stock Price}}{\text{EPS}}$$

3. Earnings Growth Tracking

Investors track EPS growth over time to assess whether a company is becoming more or less profitable.

4. Dividend Coverage

EPS helps determine if a company can afford its dividend payments.

EPS Benchmarks

Earnings Season

Companies report EPS quarterly. “Earnings season” refers to the periods when most companies release results:

• Q1: April-May
• Q2: July-August
• Q3: October-November
• Q4: January-February

EPS Examples from Major Companies

Factors That Affect EPS

Increase EPS:

• Higher revenue and profit
• Share buybacks (fewer shares outstanding)
• Cost cutting
• Tax benefits

Decrease EPS:

• Lower profits
• Stock issuance (more shares outstanding)
• Higher costs
• One-time charges

Limitations of EPS

1. Accounting flexibility: Companies can manage earnings through accounting choices
2. Doesn’t show cash flow: EPS can be positive while cash flow is negative
3. Share count changes: Buybacks artificially boost EPS
4. Non-recurring items: One-time events can distort EPS

Adjusted vs. GAAP EPS

• GAAP EPS: Calculated using standard accounting rules
• Adjusted EPS: Excludes one-time items like restructuring charges
• Analysts often focus on adjusted EPS for “normalized” profitability

Related Financial Terms

• Price-to-Earnings Ratio
• Net Income
• Revenue

This glossary entry is for educational purposes only and does not constitute investment advice.