Price-to-Sales Ratio (P/S)
Quick Definition
A valuation ratio comparing a company's stock price to its revenue per share, useful for evaluating unprofitable or high-growth companies.
What Is Price-to-Sales Ratio (P/S)?
The Price-to-Sales Ratio (P/S) compares a company's market capitalization to its total revenue. It's particularly useful for valuing companies that don't have positive earnings yet.
Formula: P/S Ratio = Market Cap / Total Revenue
- Or: Stock Price / Revenue per Share
Why P/S Is Useful:
- Works when P/E doesn't (no earnings)
- Revenue is harder to manipulate than earnings
- Useful for high-growth, unprofitable companies
- Good for comparing companies in same industry
Example:
| Company | Market Cap | Revenue | P/S Ratio |
|---|---|---|---|
| Company A | $10B | $2B | 5.0 |
| Company B | $15B | $5B | 3.0 |
| Company C | $8B | $4B | 2.0 |
Interpreting P/S:
| P/S Range | Typical Interpretation |
|---|---|
| < 1.0 | Potentially undervalued |
| 1.0 - 2.0 | Fairly valued (traditional industries) |
| 2.0 - 5.0 | Growth company premium |
| > 5.0 | High growth expectations or overvalued |
Limitations:
- Ignores profitability entirely
- Doesn't account for debt levels
- Revenue quality varies (recurring vs. one-time)
- Can't be used across different industries
P/S vs P/E:
- P/S: Better for unprofitable growth companies
- P/E: Better for profitable, stable companies
Best Use Cases:
- SaaS companies with negative earnings
- Retail businesses (similar margin structures)
- Cyclical companies during losses
- Comparing companies within same industry
Formula
Formula
P/S = Market Cap / Total RevenueRelated Terms
Price-to-Earnings Ratio (P/E)
A valuation metric comparing a company's stock price to its earnings per share, indicating how much investors pay per dollar of earnings.
Price-to-Book Ratio (P/B)
A ratio comparing a stock's market value to its book value, used to identify potentially undervalued companies.
Market Capitalization
The total market value of a company's outstanding shares, calculated by multiplying share price by total shares outstanding.
Revenue
The total amount of money a company earns from its business activities before any expenses are deducted, also called sales or top line.
EBITDA (Earnings Before Interest, Taxes, Depreciation & Amortization)
A widely used profitability metric that strips out financing, tax, and non-cash capital costs to approximate operating cash generation.
Net Income
A company's total profit after all expenses, taxes, and costs have been deducted from revenue—the "bottom line" of the income statement.
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