A company can generate substantial revenue without necessarily producing strong profits. Profitability analysis examines how much of a company's revenue ultimately becomes profit and how effectively the business uses its resources and shareholders' capital to generate earnings.
Several measurements can be used to study profitability. No single measurement tells the entire story, so investors may benefit from examining margins, returns on capital, earnings history, and cash flow together.
1. Revenue Is Not the Same as Profit
Revenue represents money generated from a company's business activities before expenses are deducted.
A company may report growing revenue while its expenses grow even faster. In that situation, sales can increase while profitability weakens.
This is why investors should generally examine both the amount of revenue a company generates and how much profit remains after the costs of operating the business.
2. Gross Profit
Gross profit represents revenue remaining after the direct costs associated with producing the goods or services sold by the company.
A simplified calculation is:
Gross Profit = Revenue − Cost of Revenue
Gross profit provides information about the economics of producing and selling the company's products or services before operating expenses, interest, taxes, and certain other items are considered.
3. Gross Profit Margin
Gross profit margin expresses gross profit as a percentage of revenue:
Gross Profit Margin = Gross Profit ÷ Revenue × 100
For example, if a company generates $1 billion in revenue and $400 million in gross profit, its gross profit margin is 40%.
Gross margin can help investors examine how much revenue remains after direct costs. Comparing several years can show whether this relationship has been improving, deteriorating, or remaining relatively stable.
Appropriate gross margins vary substantially among industries, so comparisons are generally more meaningful when made against the company's own history and similar businesses.
4. Operating Profit
Operating profit, also called operating income, generally represents profit from the company's operations after operating expenses have been deducted.
These expenses may include selling and marketing costs, research and development, administrative expenses, salaries, and other costs associated with running the business.
Operating profit can help investors examine the profitability of the underlying business before certain non-operating items such as interest and taxes.
5. Operating Margin
Operating margin expresses operating income as a percentage of revenue:
Operating Margin = Operating Income ÷ Revenue × 100
Operating margin can provide insight into how efficiently the company converts revenue into operating profit.
Examining the trend over several years can be useful. Rising operating margins may indicate that operating profit is growing faster than revenue, while declining margins may indicate that expenses are consuming a larger percentage of sales.
These changes should be investigated rather than automatically interpreted as positive or negative.
6. Net Profit
Net income represents the company's reported profit after expenses, interest, taxes, and other applicable items have been accounted for.
Because net income incorporates more of the company's expenses than gross or operating profit, it provides another perspective on overall profitability.
Investors should recognize that unusual gains, losses, tax items, and other events can sometimes have a significant effect on net income for a particular period.
7. Net Profit Margin
Net profit margin expresses net income as a percentage of revenue:
Net Profit Margin = Net Income ÷ Revenue × 100
If a company produces $100 million in revenue and $10 million in net income, its net profit margin is 10%.
Net profit margin can help investors compare the relationship between sales and bottom-line profitability over time.
As with other margins, appropriate levels vary considerably among industries and business models.
8. Why Profit-Margin Trends Matter
A single year's profit margin provides only one observation.
Reviewing several years can help reveal whether a company's margins are generally expanding, contracting, stable, or unusually volatile.
A company with increasing revenue but steadily declining margins may deserve additional investigation because more sales are not necessarily translating into proportionally greater profits.
Conversely, improving margins may reflect increased efficiency, pricing changes, product mix, cost reductions, economies of scale, or other factors that should be researched.
9. Return on Equity (ROE)
Return on equity examines net income relative to shareholders' equity.
A simplified calculation is:
ROE = Net Income ÷ Average Shareholders' Equity × 100
ROE can help investors examine how effectively a company has generated accounting profits relative to shareholders' invested equity.
A higher ROE is not automatically better. Debt can reduce the amount of equity financing in a business and can sometimes increase ROE. Share repurchases and unusually low or negative equity can also make ROE more difficult to interpret.
ROE should therefore be considered together with debt, balance-sheet strength, and other financial information.
10. Return on Invested Capital (ROIC)
Return on invested capital, commonly called ROIC, attempts to measure how efficiently a company generates operating returns from the capital invested in its business.
One commonly used representation is:
ROIC = NOPAT ÷ Invested Capital × 100
NOPAT means Net Operating Profit After Tax.
Exact ROIC calculations can vary because analysts and data providers may define invested capital and certain adjustments differently.
The important concept is that ROIC attempts to examine how effectively the business uses the capital committed to its operations.
11. Why ROIC Can Be Useful
Two companies can produce similar profits while requiring very different amounts of capital to produce those profits.
A business that requires large investments in factories, equipment, inventory, or other assets may have different economics from a business capable of generating substantial profits with relatively little additional capital.
ROIC can provide another way of examining those differences.
As with other financial measurements, ROIC should be compared with the company's history, business model, and relevant industry context.
12. ROE and ROIC Are Not the Same
ROE focuses on the return associated with shareholders' equity, while ROIC attempts to consider a broader measure of capital invested in the business.
Because companies use different combinations of debt and equity financing, ROE and ROIC can sometimes tell different stories.
Looking at both measurements can provide more context than relying exclusively on either one.
13. Earnings Per Share and Profitability
Earnings per share, or EPS, relates company earnings to its outstanding common shares.
A company with a long history of positive EPS has demonstrated an ability to report profits attributable to common shareholders across multiple periods.
However, EPS can also be affected by changes in the number of shares outstanding. Share repurchases can increase EPS even when total company earnings have not increased at the same rate.
Investors may therefore want to examine EPS alongside net income, margins, cash flow, and share-count trends.
14. Profitability and Cash Flow
Accounting profitability and cash generation are related but are not identical.
A company can report net income while operating cash flow differs because of non-cash expenses, working-capital changes, timing differences, and other accounting items.
Comparing profitability with operating cash flow and free cash flow can help investors determine whether reported earnings are accompanied by cash generation over time.
15. Comparing Companies
Profitability ratios can be useful when comparing companies, but comparisons should be made carefully.
Different industries have different cost structures, capital requirements, competitive environments, and typical profit margins.
A software company, retailer, manufacturer, bank, and utility may have very different financial structures. A profitability measurement that appears high or low in one industry may be ordinary in another.
Comparing a company with its own historical performance and with businesses that operate under reasonably similar conditions can provide more meaningful context.
16. Warning Signs Worth Researching
Profitability observations that may deserve additional investigation include:
- Persistent net losses
- Revenue growth accompanied by steadily declining profit margins
- Large unexplained changes in margins
- Reported earnings that consistently exceed cash generation by substantial amounts
- High ROE accompanied by unusually high debt or very low shareholders' equity
- Declining ROIC over an extended period
- EPS growth driven primarily by a declining share count rather than growth in total earnings
None of these observations automatically establishes that a company is financially weak. They identify areas that may deserve deeper research.
How Stock Sage Uses Profitability
Profitability is an important part of the Stock Sage research process.
Stock Sage's core fundamental qualification requires a company to have positive EPS in at least 4 of the previous 5 years. This helps identify companies that have demonstrated a history of profitability while allowing for an occasional difficult year.
Stock Sage also provides additional profitability information that can help users examine the financial characteristics of companies that pass the initial qualification process.
Measures such as profit margin, ROE, ROIC, EPS history, and cash flow can provide additional context when researching a company.
These measurements should be considered together with balance-sheet strength, debt, valuation, cash generation, price information, and other relevant factors rather than treated as stand-alone indicators.